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T-Mobile US

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FY2018 Annual Report · T-Mobile US
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2018 ANNUAL REPORT

UNSTOPPABLE

ACCELERATED 
CUSTOMER GROWTH 

In 2013, the Un-carrier set out to disrupt a 

stupid, broken, arrogant industry and change 

wireless for good. Since that time, we’ve seen 

accelerated customer growth, resulting in an 

increase to our customer base of more than 

46 million, ending 2018 with a total customer 

base of 79.7 million.

7.0M

TOTAL NET CUSTOMER 
ADDITIONS

5th year in a row 
over 5 million

3.1M

BRANDED POSTPAID PHONE 
NET CUSTOMER ADDITIONS

Nearly 4x Verizon 
and AT&T combined 

5 years in a row leading 
the industry

4.5M

BRANDED POSTPAID NET 
CUSTOMER ADDITIONS

Best annual results 
in 3 years

4 years in a row leading 
the industry

460K

BRANDED PREPAID NET 
CUSTOMER ADDITIONS

Accelerated growth QoQ 
after the rebranding of 
Metro by T-Mobile

FUELING THE 
UN-CARRIER 
REVOLUTION

The Un-carrier is all about putting customers first. Where the other guys see numbers, we see people. It’s the 

reason every decision we make is centered around doing what’s right by the customer and solving their pain 

points. 2018 was another incredible year for T-Mobile, and it’s clear that our customer experience obsession 

is paying off!

When customers join T-Mobile, they get more value for their money, with the best customer service in the industry, 

and all on the nation’s fastest 4G LTE network in 2018. Our investments in new geographies, underpenetrated 

segments and a completely new model for customer care translated into accelerated customer growth and record 

financials. All the while, we’ve been rapidly building out our network and expanding our coverage as we set the 

stage for a 5G era. As of December 31, 2018, we covered more than 325 million people on 4G LTE. 

At T-Mobile we’ve built a culture that values diversity and inclusion, a commitment to our customers and a 

responsibility to our communities and environment. It’s these values that are at the core of our DNA  and differentiate 

us from the rest. We have the people, the brand and the leadership to be UNSTOPPABLE! 

TOTAL CU
T
TAL CU
(end of period)

STOMERS

71.5M

72.6M

79.7M

63.3M

55.0M

46.7M

33.4M

FY2012

FY2013

FY2014

FY2015

FY2016

FY2017

FY2018

 
 
 
TMUS STOCK PRICE +63.3% IN 3 YEARS

$63.61
12/31/2018

$38.95
1/4/2016

RECORD 
BREAKING 
FINANCIAL 
RESULTS

In 2018, we produced strong financial results by effectively balancing growth and profitability. This was our fifth 

consecutive year successfully translating customer growth into industry-leading Total Revenue and Service Revenue 

percentage growth year-over-year. In addition to our record-high revenues, we also delivered strong net income, 

record-high Adjusted EBITDA, strong Net Cash from operating activities and record Free Cash Flow. Further proof 

that the Un-carrier strategy is working.

2018 FINANCIAL RESULTS 

TOTAL REVENUE $43.3B

STRONG NET INCOME $2.9B

OPERATING INCOME $5.3B

 6.7%  

YEAR OVER YEAR

 36.3%  

YEAR OVER YEAR

 8.6%  

YEAR OVER YEAR

Record-high Total Revenue

Leading the industry for the 
5th year in a row for Total Revenue 
percentage growth YoY 

SERVICE REVENUE $32.0B

 6.1%  

YEAR OVER YEAR

Record-high Service Revenue

Leading the industry for the 
5th year in a row for Service Revenue 
percentage growth

 22.6%  

YEAR OVER YEAR

Excluding the impact of the Tax Cuts 
and Jobs Act of $2.2B in 2017 

ADJUSTED EBITDA: $12.4B

 10.6%  

YEAR OVER YEAR

Record-high Adj. EBITDA

5th year in a row growing 
Adj. EBITDA YoY

Record-high Operating Income

NET CASH PROVIDED 
BY OPERATING 
ACTIVITIES $3.9B

 1.8%  

YEAR OVER YEAR

FREE CASH FLOW $3.6B

 30.3%  

YEAR OVER YEAR

Record-high Free Cash Flow

Note: Adjusted EBITDA and Free Cash Flow are non-GAAP financial measures. Definitions, explanations and reconciliations to the comparable GAAP metrics are provided in our annual report on Form 10-K, included herewith.

A NETWORK 
SECOND  
TO NONE

Thanks to our blazing-fast network, we were 
able to deliver record financials in 2018.

4G LTE DOWNLOAD AND UPLOAD SPEEDS FOR Q4 2018  
(In Mbps—D/L at Base, U/L at Top)

12.1

33.4

10.3

32.1

8.2

30.6

3.5
27.7

T-Mobile

Verizon

AT&T

Sprint

THE NATION’S FASTEST 
4G LTE NETWORK

In 2018, according to Speedtest Intelligence® data 
from Ookla, we averaged 4G LTE download speeds 

of 33.4 Mbps, and averaged 4G LTE upload speeds 

of 12.1 Mbps — completing our fifth consecutive year 

leading the industry with the nation’s fastest 4G LTE 

network in both download and upload speeds.

EXPANDING OUR 
COVERAGE AND 
BREADTH

T-Mobile continues to increase and expand our 

footprint and increase the capacity of our network 

to better serve our customers. We are now covering 

99% of Americans with 4G LTE: that’s more than 

325 million people — up from 322 million the year 

prior and approaching effective network population 

coverage in parity with Verizon. 

DEPLOYING  
600 MHZ SPECTRUM

In 2018, we successfully deployed 600 MHz low- 

band spectrum using 5G-ready equipment, at a 

furious pace. By the end of 2018, we had reached 

more than 2,700 cities and towns in 43 states  

and Puerto Rico, and had 29 compatible devices. 

Combining the 600 MHz spectrum and 700 MHz 

spectrum, we had deployed low-band spectrum to 

301 million people — providing better coverage for 

our customers than ever before as we set the stage 

for a 5G era.

Back in 2015, we went after the business market with 

Un-carrier 9.0, attacking the old-guard carriers’ last 

stronghold to revolutionize businesses of all sizes by 

offering transparent pricing at the best rates, alongside 

many other benefits. In 2018, T-Mobile for Business 

celebrated its best year yet, with record total customer 

net additions. But there’s still more work to be done! 

In April 2018, we launched T-Mobile ONE Military, with 

half off family lines — providing the biggest military 

discount in wireless. All because we want to thank the 

military for their service. In addition, we committed to 

hiring 10,000 veterans and military spouses within the 

next five years, and expanding LTE coverage to U.S. 

military communities. 

T-Mobile continues to see success after the 2017 launch 

of the T-Mobile ONE Unlimited 55+ plan, giving Ameri-

cans age 55 and up unlimited talk, text and LTE data for 

just $70 a month for two lines on AutoPay. All because 

we want to give a huge thank-you to the generation that 

created today’s wireless industry! 

PAVING THE 
WAY FOR THE 
FUTURE 

Extending our reach: 
New geographies and new segments.

EXPANDING OUR DISTRIBUTION FOOTPRINT
Since the beginning of 2016, we’ve increased our retail footprint by 35 million people, and now cover more than 

265 million people. This allows even more Americans, particularly in rural America, to join the Un-carrier revolution. 

NATIONWIDE IMPROVEMENT IN RURAL/SUBURBAN COVERAGE
Our nationwide rural and suburban coverage has significantly improved after our furious rollout of the 700 MHz and 600 

MHz spectrum. Combined, we’ve deployed low-band spectrum to 301 million people. This is only the beginning; there’s 

still more work to be done. If our merger with Sprint is approved, The New T-Mobile will offer massive benefits to our rural 

customers in wireless, video, enterprise and in-home broadband. 

THE BEST CARE 
IN WIRELESS… 
JUST GOT BETTER

It’s no surprise T-Mobile is known for its world-class 
customer care — loving customers is in our DNA!  
In August 2018, we shook things up a bit with the launch 
of our 15th Un-carrier move: TEAM OF EXPERTS! 

We took the traditional care model and flipped it on its head by bringing people to people and removing the 

hated Interactive Voice Response (IVR), eliminating one of the biggest customer service pain points in our 

industry — or any industry, for that matter. As it turns out, it’s good for business. 

After the launch of Team of Experts, we began experiencing our highest level of customer satisfaction at 

our lowest cost to care. In fact, we ranked at the top of the 2019 J.D. Power U.S. Wireless Customer Care 

Full-Service Study. This was our third consecutive win, and marks the 17th time T-Mobile has ranked at the 

top among full-service providers! In addition, we received the highest scores for most satisfied customers in 

wireless from two independent studies, HarrisX and YouGov, for the second year in a row.  

WHERE  
PASSION MEETS 
PURPOSE 

We’ve built a culture at T-Mobile that  
values a commitment to our customers,  
diversity and inclusion, and a responsibility  
to our community and environment.

DIVERSITY AND INCLUSION
We’ve built a culture here at T-Mobile that values diversity and inclusion. And not just because it’s the right 

thing to do. Our diverse employees and customers help us break down barriers and rewrite the rules. It’s our 

commitment to inclusion across race, gender, age, religion, identity and experience that drives us forward every 

day. It’s no wonder we ranked #12 in Fortune’s 100 Best Companies to Work For in the category for diversity. 

A COMMITMENT  
TO OUR CUSTOMERS
Our culture begins and ends with 

keeping customers top of mind. It’s 

been six years and 15 Un-carrier 

moves dedicated to solving customer 

pain points and challenging 

convention. The secret sauce to our 

success all boils down to one thing: 

our team of dedicated and customer-

experience-obsessed employees. It’s 

no wonder T-Mobile was named J.D. 

Power’s best in customer service for 

full-service wireless providers for the 

third consecutive year!

RESPONSIBILITY TO 
COMMUNITY AND 
SUSTAINABILITY 
The Un-carrier is changing wireless 

for good — and doing good for our 

communities and environment. It’s 

about leaving the world a better place, 

empowering employees to give back 

to local communities, giving youth 

and military access to opportunity, 

and making an industry-leading 

commitment to renewable energy. 

SUPERCHARGING 
THE UN-CARRIER 

In April 2018, T-Mobile and Sprint 

We remain confident and optimistic that once regulators review 

reached a definitive agreement to come 

the facts, they will recognize the pro-competitive and pro-

together to form The New T-Mobile. 

consumer benefits. The combined company will be an aggressive 

competitor in wireless, broadband and beyond, resulting in lower 

Combined, they will create a new, 

prices for consumers and creating more jobs starting Day One. 

bigger, supercharged company to 

deliver the nation’s first real nationwide 

By 2024, The New T-Mobile network will have approximately 

5G network that’s both broad and deep 

double the total capacity and triple the total 5G capacity of 

— covering big cities and rural America. 

T-Mobile and Sprint combined, with 5G speeds four to six times 

As we believe, the 5G revolution should 

what they could achieve on their own. With Sprint’s expansive 

be for everyone, everywhere, not just 

2.5 GHz spectrum, T-Mobile’s nationwide 600 MHz spectrum and 

those in dense urban areas. 

other combined assets, The New T-Mobile plans to create the 

highest-capacity network in U.S. history.

John Legere
@JohnLegere
@JohnLegere
6.2M Followers

April 26, 2019
March 1, 2019
Thanks to our customer experience obsession and mission to change wireless for good, 
It’s 
@TMobile delivered record financials and strong customer growth in 2018!

, but at 
 we don’t have a single day to 

celebrate - we have 365 days for it   All our 
success, all our wins 
 have been possible 
because of our amazing employees and the 
heart and dedication they put in every day. 
Thank you for all you do 
John Legere
@JohnLegere
@JohnLegere
6.2M Followers

, but at 
 we don’t have a single day to 

August 15, 2018
March 1, 2019
Starting today, @TMobile postpaid 
It’s 
cust have a small, dedicated team just 
for them & others in their city. Real ppl. 
celebrate - we have 365 days for it   All our 
Real help. Real service. & you talk to 
 have been possible 
success, all our wins 
your dedicated team every time you 
because of our amazing employees and the 
call (or message). They’re your Team of 
heart and dedication they put in every day. 
Experts! #RockstarStatus
Thank you for all you do 

John Legere
@JohnLegere
@JohnLegere
6.2M Followers

, but at 
 we don’t have a single day to 

March 16, 2018
March 1, 2019
The first stop of the #UnstoppableTour
It’s 
will be hard to beat. So much fun 
hanging out with all the @TMobile
celebrate - we have 365 days for it   All our 
heroes & discussing the future of 
 have been possible 
success, all our wins 
#Uncarrier!
because of our amazing employees and the 
heart and dedication they put in every day. 
Thank you for all you do 

Six years ago, the Un-carrier set out to change wireless for good. In this time, we’ve made it our mission  
to listen to our customers and solve their pain points with the launch of 15 Un-carrier moves.  
We’re only getting started — and we won’t stop. 

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 10-K

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 
For the fiscal year ended December 31, 2018
or 
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 
For the transition period from 

to 

Commission File Number: 1-33409

T-MOBILE US, INC.

(Exact name of registrant as specified in its charter)

DELAWARE
(State or other jurisdiction of incorporation or organization)
12920 SE 38th Street, Bellevue, Washington
(Address of principal executive offices)

20-0836269
(I.R.S. Employer Identification No.)
98006-1350
(Zip Code)

(425) 378-4000
(Registrant’s telephone number, including area code)
Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class
Common Stock, $0.00001 par value per share

Name of Each Exchange on Which Registered
The NASDAQ Stock Market LLC

 Securities registered pursuant to Section 12(g) of the Act: None.

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes 

 No 

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes 

 No 

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities 
Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), 
and (2) has been subject to such filing requirements for the past 90 days. Yes 

 No 

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted 
pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the 
registrant was required to submit such files). Yes 

 No 

Indicate by check mark if disclosure of delinquent filers pursuant to Rule 405 of Regulation S-K (§229.405 of this chapter) is not 
contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements 
incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. 

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller 
reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller 
reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
Large accelerated filer  

Accelerated filer    

Non-accelerated filer  

Smaller reporting company   

Emerging growth company 

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for 
complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. 
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).  

 No 

Yes 

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date.

As of June 30, 2018, the aggregate market value of the voting and non-voting common equity held by non-affiliates was $18.3 billion 
based on the closing sale price as reported on the NASDAQ Global Select Market. As of February 4, 2019, there were 850,221,464 
shares of common stock outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Part III of this Annual Report on Form 10-K will be incorporated by reference from certain portions of the definitive Proxy Statement 
for the Registrant’s Annual Meeting of Stockholders, which definitive Proxy Statement will be filed with the Securities and Exchange 
Commission pursuant to Regulation 14A or will be included in an amendment to this Report.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
PART I.

PART II.

PART III.

PART IV.

Item 1.

Item 1A.

Item 1B.

Item 2.

Item 3.

Item 4.

Item 5.

Item 6.

Item 7.

Item 7A.

Item 8.

Item 9.

Item 9A.

Item 9B.

Item 10.

Item 11.

Item 12.

Item 13.

Item 14.

Item 15.

Item 16.

T-Mobile US, Inc.
Form 10-K
For the Year Ended December 31, 2018

Table of Contents

Business

Risk Factors

Unresolved Staff Comments

Properties

Legal Proceedings

Mine Safety Disclosures

Market for Registrant’s Common Equity, Related Stockholder Matters and
Issuer Purchases of Equity Securities

Selected Financial Data

Management’s Discussion and Analysis of Financial Condition and Results of
Operations

Quantitative and Qualitative Disclosures About Market Risk

Financial Statements and Supplementary Data

Changes in and Disagreements With Accountants on Accounting and
Financial Disclosure

Controls and Procedures

Other Information

Directors, Executive Officers and Corporate Governance

Executive Compensation

Security Ownership of Certain Beneficial Owners and Management and
Related Stockholder Matters

Certain Relationships and Related Transactions, and Director Independence

Principal Accounting Fees and Services

Exhibits and Financial Statement Schedules

Form 10-K Summary
INDEX TO EXHIBITS

SIGNATURES

4

10

25

25

26

26

26

28

29

54

55

114

114

115

116

117

117

117

117

117

117

118

129

2

Cautionary Statement Regarding Forward-Looking Statements 

This Annual Report on Form 10-K (“Form 10-K”) includes forward-looking statements within the meaning of the Private 
Securities Litigation Reform Act of 1995. All statements, other than statements of historical fact, including information 
concerning our future results of operations, are forward-looking statements. These forward-looking statements are generally 
identified by the words “anticipate,” “believe,” “estimate,” “expect,” “intend,” “may,” “could” or similar expressions. Forward-
looking statements are based on current expectations and assumptions, which are subject to risks and uncertainties and may 
cause actual results to differ materially from the forward-looking statements. The following important factors, along with the 
Risk Factors included in Part I, Item 1A of this Form 10-K, could affect future results and cause those results to differ 
materially from those expressed in the forward-looking statements:

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

• 

the failure to obtain, or delays in obtaining, required regulatory approvals for the merger (the “Merger”) with Sprint 
Corporation (“Sprint”), pursuant to the Business Combination Agreement with Sprint and other parties therein (the 
“Business Combination Agreement”) and the other transactions contemplated by the Business Combination 
Agreement (collectively, the “Transactions”), and the risk that such approvals may result in the imposition of 
conditions that could adversely affect the combined company or the expected benefits of the Transactions, or the 
failure to satisfy any of the other conditions to the Transactions on a timely basis or at all; 

the occurrence of events that may give rise to a right of one or both of the parties to terminate the Business 
Combination Agreement; 

adverse effects on the market price of our common stock or on our operating results because of a failure to complete 
the Merger in the anticipated timeframe or at all; 

inability to obtain the financing contemplated to be obtained in connection with the Transactions on the expected 
terms or timing or at all; 

the ability of us, Sprint and the combined company to make payments on debt or to repay existing or future 
indebtedness when due or to comply with the covenants contained therein; 

adverse changes in the ratings of our or Sprint’s debt securities or adverse conditions in the credit markets; 

negative effects of the announcement, pendency or consummation of the Transactions on the market price of our 
common stock and on our or Sprint’s operating results, including as a result of changes in key customer, supplier, 
employee or other business relationships; 

significant costs related to the Transactions, including financing costs and unknown liabilities of Sprint or that may 
arise; 

failure to realize the expected benefits and synergies of the Transactions in the expected timeframes or at all; 

costs or difficulties related to the integration of Sprint’s network and operations into our network and operations;

the risk of litigation or regulatory actions related to the Transactions; 

the inability of us, Sprint or the combined company to retain and hire key personnel; 

the risk that certain contractual restrictions contained in the Business Combination Agreement during the pendency of 
the Transactions could adversely affect our or Sprint’s ability to pursue business opportunities or strategic transactions; 

adverse economic or political conditions in the U.S. and international markets; 

competition, industry consolidation, and changes in the market for wireless services, which could negatively affect our 
ability to attract and retain customers; 

the effects of any future merger, investment, or acquisition involving us, as well as the effects of mergers, investments, 
or acquisitions in the technology, media and telecommunications industry; 

challenges in implementing our business strategies or funding our operations, including payment for additional 
spectrum or network upgrades; 

the possibility that we may be unable to renew our spectrum licenses on attractive terms or acquire new spectrum 
licenses at reasonable costs and terms; 

difficulties in managing growth in wireless data services, including network quality; 

•  material changes in available technology and the effects of such changes, including product substitutions and 

deployment costs and performance; 

• 

• 

• 

the timing, scope and financial impact of our deployment of advanced network and business technologies; 

the impact on our networks and business from major technology equipment failures; 

breaches of our and/or our third-party vendors’ networks, information technology (“IT”) and data security, resulting in 
unauthorized access to customer confidential information; 

3

• 

• 

• 

• 

natural disasters, terrorist attacks or similar incidents; 

unfavorable outcomes of existing or future litigation; 

any changes in the regulatory environments in which we operate, including any increase in restrictions on the ability to 
operate our networks and changes in data privacy laws; 

any disruption or failure of our third parties’ or key suppliers’ provisioning of products or services; 

•  material adverse changes in labor matters, including labor campaigns, negotiations or additional organizing activity, 

and any resulting financial, operational and/or reputational impact; 

• 

• 

• 

• 

• 

• 

changes in accounting assumptions that regulatory agencies, including the Securities and Exchange Commission 
(“SEC”), may require, which could result in an impact on earnings; 

changes in tax laws, regulations and existing standards and the resolution of disputes with any taxing jurisdictions; 

the possibility that the reset process under our trademark license results in changes to the royalty rates for our 
trademarks;
the possibility that we may be unable to adequately protect our intellectual property rights or be accused of infringing 
the intellectual property rights of others;
our business, investor confidence in our financial results and stock price may be adversely affected if our internal 
controls are not effective; and
interests of a majority stockholder may differ from the interests of other stockholders.

Given these risks and uncertainties, readers are cautioned not to place undue reliance on such forward-looking statements. We 
undertake no obligation to revise or publicly release the results of any revision to these forward-looking statements, except as 
required by law. In this Form 10-K, unless the context indicates otherwise, references to “T-Mobile,” “T-Mobile US,” “our 
Company,” “the Company,” “we,” “our,” and “us” refer to T-Mobile US, Inc., a Delaware corporation, and its wholly-owned 
subsidiaries.

Investors and others should note that we announce material financial and operational information to our investors using our 
investor relations website, press releases, SEC filings and public conference calls and webcasts. We intend to also use the 
@TMobileIR Twitter account (https://twitter.com/TMobileIR) and the @JohnLegere Twitter (https://twitter.com/JohnLegere), 
Facebook and Periscope accounts, which Mr. Legere also uses as means for personal communications and observations, as 
means of disclosing information about us and our services and for complying with our disclosure obligations under Regulation 
FD. The information we post through these social media channels may be deemed material. Accordingly, investors should 
monitor these social media channels in addition to following our press releases, SEC filings and public conference calls and 
webcasts. The social media channels that we intend to use as a means of disclosing the information described above may be 
updated from time to time as listed on our investor relations website.

PART I.

Item 1. Business

Business Overview and Strategy

Un-carrier Strategy

We are the Un-carrier. Through our Un-carrier strategy, we’ve disrupted the wireless communication services industry by 
listening to our customers and providing them with added value and an exceptional experience, including implementing 
signature initiatives that changed the wireless industry forever. We ended annual service contracts, overages, unpredictable 
international roaming fees, data buckets and more. Customer response to our Un-carrier strategy has allowed us to grow into 
the third largest wireless provider in the United States. We will continue our relentless focus on customers and are determined 
to bring the Un-carrier to every potential customer in the United States.

Our relentless focus on customer experience through increased investment in network expansion, customer care, distribution 
expansion, and digital initiatives has strengthened our customer growth and increased customer retention and satisfaction, 
including the growing success of new customer segments and rate plans such as T-Mobile ONE 55+, T-Mobile ONE Military, 
T-Mobile for Business and T-Mobile Essentials as well as continued growth in existing and Greenfield markets. We continue to 
invest and innovate in these areas to deliver our customers the best value in the industry. Everything we do is powered by our 
nationwide 4G Long-Term Evolution (“LTE”) network, and we are rapidly preparing for the next generation of 5G services. 
Going forward, it is this network that will allow us to deliver innovative new products and services with the same customer 
focused and industry disrupting mentality that has redefined wireless service in the United States. 

4

History

T-Mobile USA, Inc. (“T-Mobile USA”), a Delaware corporation, was formed in 1994 as VoiceStream Wireless PCS 
(“VoiceStream”), a subsidiary of Western Wireless Corporation (“Western Wireless”). VoiceStream was spun off from Western 
Wireless in 1999, acquired by Deutsche Telekom AG (“DT”) in 2001 and renamed T-Mobile USA, Inc. in 2002.

In 2013, T-Mobile US, Inc., a Delaware corporation, was formed through the business combination of T-Mobile USA and 
MetroPCS Communications, Inc. (“MetroPCS”). The business combination was accounted for as a reverse acquisition with T-
Mobile USA as the accounting acquirer. Accordingly, T-Mobile USA’s historical financial statements became the historical 
financial statements of the combined company.

In September 2018, we announced the rebranding of our prepaid brand, MetroPCS, as Metro™ by T-Mobile. 

Business

We provide wireless services to 79.7 million postpaid, prepaid and wholesale customers and generate revenue by providing 
affordable wireless communication services to these customers, as well as a wide selection of wireless devices and accessories. 
Our most significant expenses relate to acquiring and retaining high-quality customers, providing a full range of devices, 
compensating employees, and operating and expanding our network. We provide service, devices and accessories across our 
flagship brands, T-Mobile and Metro by T-Mobile, through our owned and operated retail stores, as well as through our 
websites (www.T-Mobile.com and www.MetroPCS.com) and customer care channels. In addition, we sell devices to dealers 
and other third-party distributors for resale through independent third-party retail outlets and a variety of third-party websites. 
The information on our websites is not part of this Form 10-K. See Item 7. Management’s Discussion and Analysis of Financial 
Condition and Results of Operations for additional information.

In 2018, we completed the acquisition of television innovator Layer3 TV, Inc. (“Layer3 TV”). This transaction represented an 
opportunity to acquire a complementary service to our existing wireless service to advance our video strategy. For more 
information, see Note 2 – Business Combinations of the Notes to the Consolidated Financial Statements.

On April 29, 2018, we entered into the Business Combination Agreement with Sprint to merge in an all-stock transaction. The 
combined company will be named “T-Mobile,” and as a result of the Merger, is expected to be able to rapidly launch a 
nationwide 5G network, accelerate innovation and increase competition in the U.S. wireless, video and broadband industries. 
The Merger is subject to regulatory approvals and certain other customary closing conditions. We expect to receive regulatory 
approval in the first half of 2019. For more information regarding our Business Combination Agreement, see Note 2 – Business 
Combinations of the Notes to the Consolidated Financial Statements.

Customers

We provide wireless communication services to three primary categories of customers: 

•  Branded postpaid customers generally include customers who are qualified to pay after receiving wireless 

communication services utilizing phones, DIGITS or connected devices which includes tablets, wearables and SyncUp 
DRIVE™; 

•  Branded prepaid customers generally include customers who pay for wireless communication services in advance. Our 

branded prepaid customers include customers of T-Mobile and Metro by T-Mobile; and

•  Wholesale customers include Machine-to-Machine (“M2M”) and Mobile Virtual Network Operator (“MVNO”) 

customers that operate on our network but are managed by wholesale partners. 

We generate the majority of our service revenues by providing wireless communication services to branded postpaid and 
branded prepaid customers. Our ability to acquire and retain branded postpaid and prepaid customers is important to our 
business in the generation of service revenues, equipment revenues and other revenues. In 2018, our service revenues generated 
by providing wireless communication services by customer category were:

• 

• 

• 

65% Branded postpaid customers;

30% Branded prepaid customers; and 

5% Wholesale customers and Roaming and other services.

5

All of our revenues for the years ended December 31, 2018, 2017, and 2016 were earned in the United States, including Puerto 
Rico and the U.S. Virgin Islands. 

Services and Products

We provide wireless communication services through a variety of service plan options. We also offer a wide selection of 
wireless devices, including smartphones, tablets and other mobile communication devices, which are manufactured by various 
suppliers. 

Our primary service plan offering, which allows customers to subscribe for wireless communication services separately from 
the purchase of a device is our T-Mobile ONE plan (“T-Mobile ONE”), which includes:

•  Unlimited talk, unlimited text and unlimited high-speed 4G LTE data on their device, where monthly wireless service 

fees and sales taxes are included in the advertised monthly recurring charge; 

•  Video that typically streams at DVD (480p) quality and tethering is at maximum 3G speeds;
•  The ability for customers to keep their price for service until they decide to change it;
•  The ability for qualifying T-Mobile ONE customers on family plans to opt in for a standard monthly Netflix service 

plan at no additional cost; and

•  The ability for customers to choose to add on additional features for an additional cost on T-Mobile ONE Plus, where 

customers also receive:

•  Unlimited high definition video streaming;
• 
20 GB of high-speed 4G LTE tethering;
•  Voicemail to Text, NameID and unlimited Gogo in-flight internet passes on capable domestic flights; and
•  Up to two times faster speeds when traveling abroad in 210+ countries and destinations.

Depending on their credit profile, customers are qualified either for postpaid or prepaid service.

Our device options for customers on T-Mobile ONE, and previously on Simple Choice plans, include:

• 

• 

• 

for qualifying customers, depending on their credit profile, the option of financing all or a portion of the device 
purchase price at the time of sale over an installment period of up to 36 months using an EIP. 

for qualifying customers who finance their initial device with an EIP, an option to enroll in our Just Upgrade My 
Phone (“JUMP!®”) program to later upgrade their device. Upon a qualifying JUMP! upgrade, the customer’s 
remaining EIP balance is settled provided they trade-in their used device at the time of upgrade in good working 
condition and purchase a new device from us on a new EIP.

JUMP! On Demand™ includes a low monthly payment that covers the cost of leasing a new device and gives 
qualified customers the freedom to exchange it for a new device up to one time per month for no extra fee. Upon 
device upgrade or at lease end, customers must return their device in good working condition or purchase their device. 
Customers that choose to purchase their device have the option to finance their device over a nine-month EIP.

Network 

We continue to expand the footprint and increase the capacity of our network to better serve our customers. Our advancements 
in network technology and our spectrum resources ensure we can continue to increase the capabilities of our 4G LTE network 
as we prepare for our nationwide deployment of 5G.

Spectrum Growth

We provide wireless communication services utilizing mid-band spectrum licenses, such as Advanced Wireless Services 
(“AWS”) and Personal Communications Service (“PCS”), and low-band spectrum licenses utilizing our 600 MHz and 700 
MHz spectrum.

•  We owned an average of 110 MHz of spectrum nationwide as of December 31, 2018, comprised of an average of 31 
MHz in the 600 MHz band, 10 MHz in the 700 MHz band, 29 MHz in the 1900 MHz PCS band and 40 MHz in the 
AWS band. We also own millimeter wave spectrum that comprises an average of 264 MHz covering over 110 million 
points of presence (“POPs”) in the 28 GHz band and 105 MHz covering nearly 45 million POPs in the 39 GHz band. 

6

We will evaluate future spectrum purchases in current and upcoming auctions and in the secondary market to augment 
our current spectrum position.

•  As of December 31, 2018, we owned a nationwide average of 31 MHz of 600 MHz low-band spectrum. We now own 

approximately 41 MHz of low-band spectrum (600 MHz and 700 MHz), covering 100% of the U.S. 

•  We are building out 5G across the US, including deployment in six of the top 10 markets, including New 

York and Los Angeles, in 2018. This network will be ready for the introduction of the first standards-based 
5G smartphones in 2019. We plan on the delivery of a nationwide standards-based network next year. 

• 

In 2018, we entered into two multi-year contracts that will support the deployment of a nationwide 5G 
network. In July 2018, we and Nokia entered into a multi-year $3.5 billion contract for Nokia to provide us 
with complete end-to-end 5G technology, software and services. In September 2018, we and Ericsson 
announced a multi-year $3.5 billion contract in which Ericsson will provide us with the latest 5G New Radio 
hardware and software compliant with 3rd Generation Partnership Project (“3GPP”) standards.

•  We have started deployment of 600 MHz spectrum on an aggressive schedule. As of December 31, 2018, we 
were live in more than 2,700 cities and towns in 43 states and Puerto Rico covering hundreds of thousands of 
square miles. Combining 600 and 700 MHz spectrum, we have deployed low band spectrum to 301 million 
POPs.

•  We have actively engaged with broadcasters to accelerate the Federal Communications Commission (“FCC”) 

spectrum clearance timelines, entering into 95 agreements with several parties. These agreements are 
expected to, in aggregate, accelerate clearing, bringing the total clearing target to approximately 272 million 
POPs by year-end 2019. As of December 31, 2018, we had cleared approximately 135 million POPs. We 
remain committed to assisting broadcasters occupying 600 MHz spectrum to move to new frequencies. 

•  We currently have 29 devices compatible with 600 MHz including the latest iPhone generation.

•  We expect our 600 MHz spectrum holdings will be used to deploy America’s first nationwide standards-based 

5G network next year. 600 MHz 4G LTE radios are software upgradeable to support 5G as it becomes 
available later this year.

•  Over the last year, we have entered into and closed on various agreements for the acquisition and exchange of 700 

MHz A-Block, AWS and PCS spectrum licenses. See Note 6 – Goodwill, Spectrum License Transactions and Other 
Intangible Assets of the Notes to the Consolidated Financial Statements for further information.

•  We intend to opportunistically acquire spectrum licenses in private party transactions and future FCC spectrum license 

auctions.

Network Coverage Growth

•  We continue to expand our coverage breadth and, as of December 31, 2018, covered more than 325 million people 

with 4G LTE.

•  As of December 31, 2018, we had equipment deployed on approximately 64,000 macro towers and 21,000 distributed 
antenna system (“DAS”) and small cell sites. We remain on plan to roll out approximately 20,000 small cells through 
2019.

Network Speed Leadership

We offer the fastest nationwide 4G LTE upload and download speeds in the United States. The fourth quarter of 2018 is the 
20th consecutive quarter we have led the industry in both categories based on the results of millions of user-generated speed 
tests.

Network Capacity Growth 

We continue to expand our capacity through the re-farming of existing spectrum and implementation of new technologies 
including Voice over LTE (“VoLTE”), Carrier Aggregation, 4x4 multiple-input and multiple-output (“MIMO”), 256 Quadrature 
Amplitude Modulation (“QAM”) and Licensed Assisted Access (“LAA”).

•  VoLTE comprised 87% of total voice calls as of December 31, 2018, compared to 80% as of December 31, 2017. 

Moving voice traffic to VoLTE frees up spectrum and allows for the transition of spectrum currently used for 2G and 
3G to 4G LTE. We are leading the U.S. wireless industry in the rate of VoLTE adoption.

•  Carrier aggregation is live for our customers in 923 markets. This advanced technology delivers superior speed and 

7

performance by bonding multiple discrete spectrum channels together. 

• 

4x4 MIMO is currently available in 564 markets. This technology effectively delivers twice the speed and incremental 
network capacity to customers by doubling the number of data paths between the cell site and a customer's device. We 
started deploying massive MIMO (FD-capable and 5G with future software upgrades) in selected locations in late 
2018.

•  We have rolled out 256 QAM in 988 markets. 256 QAM increases the number of bits delivered per transmission to 
enable faster speeds. We are the first carrier globally to have rolled out the combination of carrier aggregation, 4x4 
MIMO and 256 QAM. This trifecta of standards has been rolled out to more than 500 markets.

•  We have also started rolling out LAA, a technology which utilizes unlicensed 5 GHz spectrum to augment available 
bandwidth. The first LAA small cell went live in New York City in the fourth quarter of 2017 and the technology has 
since been rolled out to nearly 1,700 cell sites, the vast majority being small cells. Deployments of LAA have also 
commenced in 28 cities including Los Angeles, Philadelphia, Washington DC, Atlanta, Houston, Las Vegas, San 
Diego and New Orleans. In areas where LAA has been deployed, customers with capable handsets have observed real-
life speeds in excess of 500 Mbps.

• 

In July 2018, we launched our Narrowband Internet of Things (“NB-IoT”) service nationwide, making us the first to 
launch NB-IoT in the U.S. and the first in the world to launch NB-IoT in the guard bands for improved efficiency. 
Built on the 3GPP standard, NB-IoT is a low power, wide area network LTE-advanced technology that provides a 
pathway to 5G Internet of Things and enables many comparable benefits like low power usage, long battery life and 
low device cost.

Competition

The wireless telecommunications industry is highly competitive. We are the third largest provider of postpaid service plans and 
the largest provider of prepaid service plans in the U.S. as measured by customers. Our competitors include other national 
carriers, such as AT&T Inc. (“AT&T”), Verizon Communications, Inc. (“Verizon”) and Sprint. AT&T and Verizon are 
significantly larger than us and enjoy greater resources and scale advantages as compared to us. In addition, our competitors 
include numerous smaller regional carriers, existing mobile virtual network operators (“MVNOs”), including TracFone 
Wireless, Inc., Comcast Corporation (“Comcast”) and Charter Communications, Inc., and future MVNOs, such as Altice USA, 
Inc., many of which offer or plan to offer no-contract, postpaid and prepaid service plans. Competitors also include providers 
who offer similar communication services, such as voice, messaging and data services, using alternative technologies or 
services. Competitive factors within the wireless telecommunications industry include pricing, market saturation, service and 
product offerings, customer experience, network investment and quality, development and deployment of technologies, 
availability of additional spectrum licenses and regulatory changes. Some competitors have shown a willingness to use 
aggressive pricing as a source of differentiation. Other competitors have sought to add ancillary services, like mobile video, to 
enhance their offerings. Taken together, the competitive factors we face continue to put pressure on growth and margins as 
companies compete to retain the current customer base and continue to add new customers.

Employees

As of December 31, 2018, we employed approximately 52,000 full-time and part-time employees, including network, retail, 
administrative and customer support functions.

Regulation 

The FCC regulates many key aspects of our business, including licensing, construction, the operation and use of our network, 
modifications of our network, control and ownership of our licenses and authorizations, the sale, transfer and acquisition of 
certain licenses, domestic roaming arrangements and interconnection agreements, pursuant to its authority under the 
Communications Act of 1934, as amended (“Communications Act”). The FCC has a number of complex requirements and 
proceedings that affect our operations and that could increase our costs or diminish our revenues. For example, the FCC has 
rules regarding provision of 911 and E-911 services, porting telephone numbers, interconnection, roaming, internet openness or 
net neutrality, disabilities access, privacy and cybersecurity, consumer protection, and the universal service and Lifeline 
programs. Many of these and other issues are being considered in ongoing proceedings, and we cannot predict whether or how 
such actions will affect our business, financial condition or results of operations. Our ability to provide services and generate 
revenues could be harmed by adverse regulatory action or changes to existing laws and regulations. In addition, regulation of 
companies that offer competing services can impact our business indirectly. 

Wireless communications providers must be licensed by the FCC to provide communications services at specified spectrum 
frequencies within specified geographic areas and must comply with the rules and policies governing the use of the spectrum as 
8

adopted by the FCC. The FCC issues each license for a fixed period of time, typically 10-15 years depending on the particular 
licenses. While the FCC has generally renewed licenses given to operating companies like us, the FCC has authority to both 
revoke a license for cause and to deny a license renewal if a renewal is not in the public interest. Furthermore, we could be 
subject to fines, forfeitures and other penalties for failure to comply with FCC regulations, even if any such non-compliance 
was unintentional. In extreme cases, penalties can include revocation of our licenses. The loss of any licenses, or any related 
fines or forfeitures, could adversely affect our business, results of operations and financial condition. 

Additionally, Congress’ and the FCC’s allocation of additional spectrum for broadband commercial mobile radio service 
(“CMRS”), which includes cellular, PCS, miscellaneous wireless services and specialized mobile radio, could significantly 
increase competition. We cannot assess the impact that any developments that may occur in the U.S. economy or any future 
spectrum allocations by the FCC may have on license values. FCC spectrum auctions and other market developments may 
adversely affect the market value of our licenses in the future. A significant decline in the value of our licenses could adversely 
affect our financial condition and results of operations. In addition, the FCC periodically reviews its policies on how to evaluate 
carriers’ spectrum holdings. A change in these policies could affect spectrum resources and competition among us and other 
carriers. 

Congress and the FCC have imposed limitations on foreign ownership of CMRS licensees that exceed 20% direct ownership or 
25% indirect ownership. The FCC has ruled that higher levels of indirect foreign ownership, even up to 100%, are 
presumptively consistent with the public interest albeit subject to review. Consistent with that established policy, the FCC has 
issued a declaratory ruling authorizing up to 100% ownership of our Company by DT. This declaratory ruling, and our licenses, 
are conditioned on DT’s and the Company’s compliance with a network security agreement with the Department of Justice, the 
Federal Bureau of Investigation and the Department of Homeland Security. Failure to comply with the terms of this agreement 
could result in fines, injunctions and other penalties, including potential revocation of our spectrum licenses.

While the Communications Act generally preempts state and local governments from regulating the entry of, or the rates 
charged by, wireless communication providers, certain state and local governments regulate other terms and conditions of 
wireless service, including billing, termination of service arrangements and the imposition of early termination fees, 
advertising, network outages, the use of devices while driving, zoning and land use. Additionally, after the FCC’s adoption of 
the 2017 “Restoring Internet Freedom” Order, a number of states have sought to impose state-specific net neutrality and 
privacy requirements on providers’ broadband services. The FCC ruling broadly preempts such state efforts, which are 
inconsistent with the FCC’s federal deregulatory approach, and there are pending court challenges that will determine if such 
state enactments are lawful. While most states are largely seeking to codify the repealed federal rules, there are differences in 
some states, notably California, which has passed separate privacy and net neutrality legislation. There are efforts on the Hill to 
push for federal legislation to codify uniform federal privacy and net neutrality requirements, while also ensuring the 
preemption of separate state requirements, including the California laws. If not rescinded, separate state requirements will 
impose significant business costs and could also result in increased litigation costs and enforcement risks. State authority over 
wireless broadband services will remain unsettled until final action by the courts or Congress.  

In addition, the Federal Trade Commission (“FTC”) and other federal agencies have jurisdiction over some consumer 
protection and elimination and prevention of anticompetitive business practices with respect to the provision of non-common 
carrier services. Further, the FCC and the Federal Aviation Administration regulate the siting, lighting and construction of 
transmitter towers and antennae. Tower siting and construction are also subject to state and local zoning, as well as federal 
statutes regarding environmental and historic preservation. The future costs to comply with all relevant regulations are to some 
extent unknown and changes to regulations, or the applicability of regulations, could result in higher operating and capital 
expenses, or reduced revenues in the future. 

Available Information

The SEC maintains an internet site that contains reports, proxy and information statements, and other information regarding 
issuers that file electronically at www.sec.gov. Our Form 10-K and all other reports and amendments filed with or furnished to 
the SEC are also publicly available free of charge on the investor relations section of our website at investor.t-mobile.com as 
soon as reasonably practicable after these materials are filed with or furnished to the SEC. Our corporate governance 
guidelines, code of ethics for senior financial officers, code of business conduct, and charters for the audit, compensation, 
nominating and corporate governance and executive committees of our Board of Directors are also posted on the investor 
relations section of our website at investor.t-mobile.com. The information on our websites is not part of this or any other report 
we file with, or furnish to, the SEC.

9

Item 1A. Risk Factors 

In addition to the other information contained in this Form 10-K, the following risk factors should be considered carefully in 
evaluating our Company. Our business, financial condition, liquidity, or operating results, as well as the price of our common 
stock and other securities, could be materially adversely affected by any of these risks.

Risks Related to Our Business and the Wireless Industry

Competition, industry consolidation, and changes in the market for wireless services could negatively affect our ability 
to attract and retain customers and adversely affect our business, financial condition, and operating results.

We have multiple wireless competitors, some of which have greater resources than us and compete for customers based 
principally on service/device offerings; price; network coverage, speed and quality and customer service. We expect market 
saturation to continue to cause the wireless industry’s customer growth rate to be moderate in comparison with historical 
growth rates, or possibly negative, leading to ongoing competition for customers. We also expect that our customers’ appetite 
for data services will place increasing demands on our network capacity. This competition and our capacity will continue to put 
pressure on pricing and margins as companies compete for potential customers. Our ability to compete will depend on, among 
other things, continued absolute and relative improvement in network quality and customer service, effective marketing and 
selling of products and services, innovation, attractive pricing, and cost management, all of which will involve significant 
expenses.

Joint ventures, mergers, acquisitions and strategic alliances in the wireless sector have resulted in and are expected to result in 
larger competitors competing for a limited number of customers. The two largest national wireless communication providers 
currently serve a significant percentage of all wireless customers and hold significant spectrum and other resources. Our largest 
competitors may be able to enter into exclusive handset, device, or content arrangements, execute pervasive advertising and 
marketing campaigns, or otherwise improve their cost position relative to ours. In addition, refusal of our large competitors to 
provide critical access to resources and inputs, such as roaming services on reasonable terms could improve their position 
within the wireless broadband mobile services industry.

We face intense and increasing competition from other service providers as industry sectors converge, such as cable, telecom 
services and content, satellite, and other service providers. Companies like Comcast and AT&T (with acquisitions of DirecTV 
and Time Warner, Inc.) will have the scale and assets to aggressively compete in a converging industry. Verizon, through its 
acquisitions of AOL, Inc. and Yahoo! Inc. is also a significant competitor focusing on premium content offerings to diversify 
outside of core wireless. Further, some of our competitors now provide content services in addition to voice and broadband 
services, and consumers are increasingly accessing video content from Internet-based providers and applications, all of which 
create increased competition in this area. These factors, together with the effects of the increasing aggregate penetration of 
wireless services in all metropolitan areas and the ability of our larger competitors to use resources to build out their networks 
and to quickly deploy advanced technologies, such as 5G, could make it more difficult for us to continue to attract and retain 
customers, and may adversely affect our competitive position and ability to grow, which would have a material adverse effect 
on our business, financial condition and operating results.

The scarcity and cost of additional wireless spectrum, and regulations relating to spectrum use, may adversely affect 
our business, financial condition and operating results.

We will need to acquire additional spectrum in order to continue our customer growth, expand and deepen our coverage, 
maintain our quality of service, meet increasing customer demands and deploy new technologies. We will be at a competitive 
disadvantage and possibly experience erosion in the quality of service in certain markets if we fail to gain access to necessary 
spectrum before reaching network capacity. As a result, we are actively seeking to make additional investment in spectrum, 
which could be significant.

The continued interest in, and acquisition of, spectrum by existing carriers and others may reduce our ability to acquire and/or 
increase the cost of acquiring spectrum in the secondary market or negatively impact our ability to gain access to spectrum 
through other means, including government auctions. We may need to enter into spectrum sharing or leasing arrangements, 
which are subject to certain risks and uncertainties and may involve significant expenditures. Gaining access to the spectrum 
we won in the FCC 600 MHz auction in 2017 may take up to three years or more. Any material delay could adversely impact 
our ability to implement our plans and efforts to improve our network. In addition, our return on investment in spectrum 
depends on our ability to attract additional customers and to provide additional services and usage to existing customers. As a 
result, the return on any investment in spectrum that we make may not be as much as we anticipate or take longer than 

10

expected. Additionally, we may be unable to secure the spectrum we need in any auction we may elect to participate in or in the 
secondary market, on favorable terms or at all.

The FCC may impose conditions on the use of new wireless broadband mobile spectrum that may negatively impact our ability 
to obtain spectrum economically or in appropriate configurations or coverage areas. Additional conditions that may be imposed 
by the FCC include heightened build-out requirements, limited license terms or renewal rights, and clearing obligations that 
may make it less attractive or less economical to acquire spectrum. In addition, rules may be established for future government 
spectrum auctions that may negatively impact our ability to obtain spectrum economically or in appropriate configurations or 
coverage areas.

If we cannot acquire needed spectrum from the government or otherwise, if competitors acquire spectrum that will allow them 
to provide services competitive with our services, or if we cannot deploy services over acquired spectrum on a timely basis 
without burdensome conditions, at reasonable cost, and while maintaining network quality levels, then our ability to attract and 
retain customers and our business, financial condition and operating results could be materially adversely affected.

If we are unable to take advantage of technological developments on a timely basis, we may experience a decline in 
demand for our services or face challenges in implementing or evolving our business strategy.

Significant technological changes continue to impact the communications industry. In general, these technological changes 
enhance communications and enable a broader array of companies to offer services competitive with ours. In order to grow and 
remain competitive with new and evolving technologies in our industry, we will need to adapt to future changes in technology, 
continually invest in our network, increase network capacity, enhance our existing offerings, and introduce new offerings to 
address our current and potential customers’ changing demands. Enhancing our network, such as deploying 5G, is subject to 
risk from equipment changes and migration of customers from existing spectrum bands and the potential inability to secure 
spectrum necessary to deploy advanced technologies. Adopting new and sophisticated technologies may result in 
implementation issues such as scheduling and supplier delays, unexpected or increased costs, technological constraints, 
regulatory permitting issues, customer dissatisfaction, and other issues that could cause delays in launching new technological 
capabilities, which in turn could result in significant costs or reduce the anticipated benefits of the upgrades. In general, the 
development of new services in the wireless telecommunications industry will require us to anticipate and respond to the 
continuously changing demands of our customers, which we may not be able to do accurately or timely. If our new services fail 
to retain or gain acceptance in the marketplace or if costs associated with these services are higher than anticipated, this could 
have a material adverse effect on our business, financial condition and operating results.

We could be harmed by data loss or other security breaches, whether directly or indirectly.

Our business, like that of most retailers and wireless companies, involves the receipt, storage, and transmission of our 
customers’ confidential information, including sensitive personal information and payment card information, confidential 
information about our employees and suppliers, and other sensitive information about our Company, such as our business 
plans, transactions and intellectual property (“Confidential Information”). Unauthorized access to Confidential Information 
may be difficult to anticipate, detect, or prevent, particularly given that the methods of unauthorized access constantly change 
and evolve. We are subject to the threat of unauthorized access or disclosure of Confidential Information by state-sponsored 
parties, malicious actors, third parties or employees, errors or breaches by third-party suppliers, or other security incidents that 
could compromise the confidentiality and integrity of Confidential Information. In August 2018, we notified affected customers 
of an incident involving unauthorized access to certain customer contact information (not involving credit card information, 
financial data, social security numbers or passwords). While we do not believe the August 2018 security incident was material, 
we expect to continue to be the target of cyber-attacks, data breaches, or security incidents, which may in the future have a 
material adverse effect on our business, reputation, financial condition, and operating results.

Cyber-attacks, such as denial of service and other malicious attacks, could disrupt our internal systems and applications, impair 
our ability to provide services to our customers, and have other adverse effects on our business and that of others who depend 
on our services. As a telecommunications carrier, we are considered a critical infrastructure provider and therefore may be more 
likely to be the target of such attacks. Such attacks against companies may be perpetrated by a variety of groups or persons, 
including those in jurisdictions where law enforcement measures to address such attacks are ineffective or unavailable, and 
such attacks may even be perpetrated by or at the behest of foreign governments.

In addition, we provide confidential, proprietary and personal information to third-party service providers as part of our 
business operations. These third-party service providers have experienced data breaches and other attacks that included 
unauthorized access to Confidential Information in the past, and face security challenges common to all parties that collect and 
process information. Past data breaches include a breach of the networks of one of our credit decisioning providers in 

11

September 2015, during which a subset of records containing current and potential customer information was acquired by an 
external party.

Our procedures and safeguards to prevent unauthorized access to sensitive data and to defend against attacks seeking to disrupt 
our services must be continually evaluated and revised to address the ever-evolving threat landscape. We cannot make 
assurances that all preventive actions taken will adequately repel a significant attack or prevent information security breaches 
or the misuses of data, unauthorized access by third parties or employees, or exploits against third-party supplier environments. 
If we or our third-party suppliers are subject to such attacks or security breaches, we may incur significant costs or other 
material financial impact, which may not be covered by, or may exceed the coverage limits of, our cyber insurance, be subject 
to regulatory investigations, sanctions and private litigation, experience disruptions to our operations or suffer damage to our 
reputation. Any future cyber-attacks, data breaches, or security incidents may have a material adverse effect on our business, 
financial condition, and operating results.

System failures and business disruptions may allow unauthorized use of or interference with our network and other 
systems which could materially adversely affect our reputation and financial condition.

To be successful, we must provide our customers with reliable, trustworthy service and protect the communications, location, 
and personal information shared or generated by our customers. We rely upon both our systems and networks and the systems 
and networks of other providers and suppliers to provide and support our services and, in some cases, protect our customers’ 
information and our information. Failure of our or others’ systems, networks, or infrastructure may prevent us from providing 
reliable service or may allow for the unauthorized use of or interference with our networks and other systems or for the 
compromise of customer information. Examples of these risks include:

• 
• 

• 
• 

• 
• 

human error such as responding to deceptive communications or unintentionally executing malicious code;
physical damage, power surges or outages, or equipment failure, including those as a result of severe weather, natural 
disasters, terrorist attacks, political instability and volatility, and acts of war;
theft of customer and/or proprietary information offered for sale for competitive advantage or corporate extortion;
unauthorized access to our IT and business systems or to our network and critical infrastructure and those of our 
suppliers and other providers;
supplier failures or delays; and
system failures or outages of our business systems or communications network.

Such events could cause us to lose customers, lose revenue, incur expenses, suffer reputational damage, and subject us to 
litigation or governmental investigation. Remediation costs could include liability for information loss, repairing infrastructure 
and systems, and/or costs of incentives offered to customers. Our insurance may not cover, or be adequate to fully reimburse us 
for, costs and losses associated with such events.

We are in the process of implementing a new billing system, which will support a portion of our subscribers, while 
maintaining our legacy billing system. Any unanticipated difficulties, disruption, or significant delays could have 
adverse operational, financial, and reputational effects on our business.

We are currently implementing a new customer billing system, which involves a new third-party supported platform and 
utilization of a phased deployment approach. Post implementation, we plan to operate both the existing and new billing systems 
in parallel to aid in the transition to the new system until all phases of the conversion are complete.

The implementation may cause major system or business disruptions, or we may fail to implement the new billing system in a 
timely or effective manner. In addition, the third-party billing services supporting vendor may experience errors, cyber-attacks, 
or other operational disruptions that could negatively impact us and over which we may have limited control. Interruptions and/
or failure of this billing services system could disrupt our operations and impact our ability to provide or bill for our services, 
retain customers, attract new customers, or negatively impact overall customer experience. Any occurrence of the foregoing 
could cause material adverse effects on our operations and financial condition, material weaknesses in our internal control over 
financial reporting, and reputational damage.

We rely on third parties to provide products and services for the operation of our business, and the failure or inability of 
such parties to provide these products or services could adversely affect our business, financial condition, and operating 
results.

We depend heavily on suppliers, their subcontractors, and other third parties for us to efficiently operate our business. Due to 
the complexity of our business, it is not unusual to engage a diverse set of suppliers to help us develop, maintain, and 

12

troubleshoot products and services such as network components, software development services, and billing and customer 
service support. Some of our suppliers may provide services from outside of the United States, which carries additional 
regulatory and legal obligations. We commonly rely on suppliers to provide us with contractual assurances and to disclose 
accurate information regarding risks associated with their provision of products or services in accordance with our policies and 
standards, including our Supplier Code of Conduct and our third party-risk management practices. The failure of our suppliers 
to comply with our expectations and standards could have a material adverse effect on our business, financial condition, and 
operating results.

Many of the products and services we use are available through multiple sources and suppliers. However, there are a limited 
number of suppliers who can support or provide billing services, voice and data communications transport services, network 
infrastructure, equipment, handsets, other devices, and payment processing services, among other products and services. 
Disruptions or failure of such suppliers to adequately perform could have a material adverse effect on our business, financial 
condition, and operating results.

In the past, our suppliers, contractors, service providers and third-party retailers may not have always performed at the levels 
we expected or at the levels required by their contracts. Our business could be severely disrupted if critical suppliers, 
contractors, service providers, or third-party retailers fail to comply with their contracts or become unable to continue providing 
goods or services. Our business could also be disrupted if we experience delays or service degradation during any transition to 
a new outsourcing provider or other supplier or if we are required to replace the supplied products or services with those from 
another source, especially if the replacement becomes necessary on short notice. Any such disruptions could have a material 
adverse effect on our business, financial condition, and operating results.

Economic, political, and market conditions may adversely affect our business, financial condition, and operating results, 
as well as our access to financing on favorable terms or at all.

Our business, financial condition, and operating results are sensitive to changes in general economic conditions, including 
interest rates, consumer credit conditions, consumer debt levels, consumer confidence, rates of inflation (or concerns about 
deflation), unemployment rates, economic growth, energy costs, and other macro-economic factors. Difficult, or worsening, 
general economic conditions could have a material adverse effect on our business, financial condition, and operating results.

Market volatility, political and economic uncertainty, and weak economic conditions, such as a recession or economic 
slowdown, may materially adversely affect our business, financial condition, and operating results in a number of ways. Our 
services and device financing plans are available to a broad customer base, a significant segment of which may be more 
vulnerable to weak economic conditions, particularly our subprime customers. We may have greater difficulty in gaining new 
customers within this segment, and existing customers may be more likely to terminate service and default on device financing 
plans due to an inability to pay.

Weak economic conditions and credit conditions may also adversely impact our suppliers and dealers, some of which have filed 
for or may be considering bankruptcy, or may experience cash flow or liquidity problems, or are unable to obtain or refinance 
credit such that they may no longer be able to operate. Any of these could adversely impact our ability to distribute, market, or 
sell our products and services.

In addition, instability in the global financial markets could lead to periodic volatility in the credit, equity, and fixed income 
markets. This volatility could limit our access to the credit markets, leading to higher borrowing costs or, in some cases, the 
inability to obtain financing on terms that are acceptable to us or at all.

The agreements governing our indebtedness and other financing arrangements include restrictive covenants that limit 
our operating flexibility.

The agreements governing our indebtedness and other financing arrangements impose significant operating and financial 
restrictions on us. These restrictions, subject in certain cases to customary baskets, exceptions, and incurrence-based ratio tests, 
may limit our or our subsidiaries’ ability to pursue strategic business opportunities and engage in certain transactions, including 
the following:

• 
• 
• 
• 
• 

incurring additional indebtedness and issuing preferred stock;
paying dividends, redeeming capital stock, or making other restricted payments or investments;
selling or buying assets, properties, or licenses;
developing assets, properties, or licenses that we have or in the future may procure;
creating liens on assets securing indebtedness or other obligations;

13

• 
• 
• 
• 

participating in future FCC auctions of spectrum or private sales of spectrum; 
engaging in mergers, acquisitions, business combinations, or other transactions;
entering into transactions with affiliates; and
placing restrictions on the ability of subsidiaries to pay dividends or make other payments.

These restrictions could limit our ability to obtain debt financing, engage in share repurchases, refinance or pay principal on our 
outstanding indebtedness, complete acquisitions for cash or indebtedness or react to business, economic, market and industry 
conditions and other changes in our operating environment or the economy. Any future indebtedness that we incur may contain 
similar or more restrictive covenants. Any failure to comply with the restrictions of our debt agreements and other financing 
arrangements may result in an event of default under these agreements, which in turn may result in defaults or acceleration of 
obligations under these and other agreements, giving our lenders the right to terminate any commitments they had made to 
provide us with further funds and to require us to repay all amounts then outstanding. Any of these events could have a material 
adverse effect on our business, financial condition, and operating results.

Our significant indebtedness could adversely affect our business, financial condition and operating results.

Our ability to make payments on our debt, to repay our existing indebtedness when due, to fund our capital-intensive business 
and operations, and to make significant planned capital expenditures will depend on our ability to generate cash in the future, 
which is in turn subject to the operational risks described elsewhere in this report. Our debt service obligations could have 
material adverse effects on our business, financial condition, and operating results, including by:

• 

• 
• 

limiting our flexibility in planning for, or reacting to, changes in our business or the communications industry or 
pursuing growth opportunities;
reducing the amount of cash available for other operational or strategic needs; and
placing us at a competitive disadvantage to competitors who are less leveraged than we are.

Some of our debt has a variable rate of interest linked to various indices and only some of our exposure is hedged. If the 
changes in indices result in interest rate increases, our debt service requirements will increase, which could adversely affect our 
cash flow and operating results. In particular, some or all of our variable-rate indebtedness may use the London Inter-Bank 
Offered Rate (“LIBOR”) or similar rates as a benchmark for establishing the rate. LIBOR is the subject of recent national, 
international and other regulatory guidance and proposals for reform. These reforms and other pressures may cause LIBOR to 
disappear entirely or to perform differently than in the past. The consequence of these developments cannot be entirely 
predicted but could include an increase in the cost of our variable rate indebtedness. In addition, any hedging agreements we 
have and may continue to enter into to limit our exposure to interest rate increases or foreign currency fluctuations may not 
offer complete protection from these risks or may be unsuccessful, and consequently may effectively increase the interest rate 
we pay on our debt or the exchange rate with respect to such debt, and any portion not subject to such hedging agreements 
would have full exposure to interest rate increases or foreign currency fluctuations, as applicable. If any financial institutions 
that are parties to our hedging agreements were to default on their payment obligations to us, declare bankruptcy or become 
insolvent, we would be unhedged against the underlying exposures. Any of these risks could have a material adverse effect on 
our business, financial condition and operating results.

Failure to maintain effective internal controls in accordance with Section 404 of the Sarbanes-Oxley Act could result in 
a loss of investor confidence regarding our financial statements or may have a material adverse effect on our business.

Under Section 404 of the Sarbanes-Oxley Act of 2002, we along with our independently registered public accounting firm are 
required to report on the effectiveness of our internal control over financial reporting. We rely heavily on IT systems as an 
important part of our internal controls in order to operate, transact, and otherwise manage our business, as well as provide 
effective and timely reporting of our financial results. Failure to design and maintain effective internal controls, including those 
over our IT systems, could constitute a material weakness that could result in inaccurate financial statements, inaccurate 
disclosures, or failure to prevent fraud. If we or our independent registered public accounting firm were unable to conclude that 
we have effective internal control over financial reporting, investor confidence regarding our financial statements and our 
business could be materially adversely affected.

14

Our financial condition and operating results will be impaired if we experience high fraud rates related to device 
financing, credit cards, dealers, or subscriptions.

Our operating costs could increase substantially as a result of fraud, including device financing, customer credit card, 
subscription, or dealer fraud. If our fraud detection strategies and processes are not successful in detecting and controlling 
fraud, whether directly or by way of the systems, processes, and operations of third parties such as national retailers, dealers, 
and others, the resulting loss of revenue or increased expenses could have a material adverse effect on our financial condition 
and operating results.

We rely on highly-skilled personnel throughout all levels of our business. Our business could be harmed if we are unable 
to retain or motivate key personnel, hire qualified personnel or maintain our corporate culture.

The market for highly-skilled workers and leaders in our industry is extremely competitive. We believe that our future success 
depends in substantial part on our ability to recruit, hire, motivate, develop, and retain talented and highly-skilled personnel for 
all areas of our organization. Doing so may be difficult due to many factors, including fluctuations in economic and industry 
conditions, changes to U.S. immigration policy, competitors’ hiring practices, employee tolerance for the significant amount of 
change within and demands on our Company and our industry, and the effectiveness of our compensation programs. Our 
continued ability to compete effectively depends on our ability to retain and motivate our existing employees and to attract new 
employees. If we do not succeed in retaining and motivating our existing key employees and attracting new key personnel, we 
may not be able to meet our business plan and, as a result, our revenue growth and profitability may be materially adversely 
affected.

Any acquisition, investment, or merger may subject us to significant risks, any of which may harm our business.

We may pursue acquisitions of, investments in or mergers with businesses, technologies, services and/or products that 
complement or expand our business. Some of these potential transactions could be significant relative to the size of our 
business and operations. Any such transaction would involve a number of risks and could present financial, managerial and 
operational challenges, including:

• 
• 

• 

• 

• 
• 
• 

• 

diversion of management attention from running our existing business;
increased costs to integrate the networks, spectrum, technology, personnel, customer base and business practices of the 
business involved in any such transaction with our business;
difficulties in effectively integrating the financial and operational systems of the business involved in any such 
transaction into (or supplanting such systems with) our financial and operational reporting infrastructure and internal 
control framework in an effective and timely manner;
potential exposure to material liabilities not discovered in the due diligence process or as a result of any litigation 
arising in connection with any such transaction;
significant transaction expenses in connection with any such transaction, whether consummated or not;
risks related to our ability to obtain any required regulatory approvals necessary to consummate any such transaction;
acquisition financing may not be available on reasonable terms or at all and any such financing could significantly 
increase our outstanding indebtedness or otherwise affect our capital structure or credit ratings; and
any business, technology, service, or product involved in any such transaction may significantly under-perform 
relative to our expectations, and we may not achieve the benefits we expect from the transaction, which could, among 
other things, also result in a write-down of goodwill and other intangible assets associated with such transaction.

For any or all of these reasons, our pursuit of an acquisition, investment, or merger may have a material adverse effect on our 
business, financial condition, and operating results.

Risks Related to Legal and Regulatory Matters

Changes in regulations or in the regulatory framework under which we operate could adversely affect our business, 
financial condition and operating results.

The FCC regulates the licensing, construction, modification, operation, ownership, sale, and interconnection of wireless 
communication systems, as do some state and local regulatory agencies. In particular, the FCC imposes significant regulation 
on licensees of wireless spectrum with respect to how radio spectrum is used by licensees, the nature of the services that 
licensees may offer and how the services may be offered, and the resolution of issues of interference between spectrum bands. 
Additionally, the FTC and other federal and state agencies have asserted that they have jurisdiction over some consumer 
protection, and elimination and prevention of anticompetitive business practices with respect to the provision of wireless 

15

products and services. We are subject to regulatory oversight by various federal, state and local agencies, as well as judicial 
review and actions, on issues related to the wireless industry that include, but are not limited to: roaming, interconnection, 
spectrum allocation and licensing, facilities siting, pole attachments, intercarrier compensation, Universal Service Fund 
(“USF”), net neutrality, 911 services, consumer protection, consumer privacy, and cybersecurity. We are also subject to 
regulations in connection with other aspects of our business, including handset financing and insurance activities.

We cannot assure you that the FCC or any other federal, state or local agencies will not adopt regulations or take enforcement 
or other actions that would adversely affect our business, impose new costs, or require changes in current or planned 
operations. For example, under the Obama administration, the FCC established net neutrality and privacy regimes that applied 
to our operations. Both sets of rules potentially subjected some of our initiatives and practices to more burdensome 
requirements and heightened scrutiny by federal and state regulators, the public, edge providers, and private litigants regarding 
whether such initiatives or practices are compliant. While the FCC rules are now largely rolled back under the Trump 
administration, some state legislators and regulators are seeking to replace them with state laws, perpetuating uncertainty 
regarding the regulatory environment around these issues.

In addition, states are increasingly focused on the quality of service and support that wireless communication providers provide 
to their customers and several states have proposed or enacted new and potentially burdensome regulations in this area. We also 
face potential investigations by, and inquiries from or actions by state public utility commissions. We also cannot assure you 
that Congress will not amend the Communications Act, from which the FCC obtains its authority, and which serves to limit 
state authority, or enact other legislation in a manner that could be adverse to our business. Additionally, California passed the 
California Consumer Privacy Act (the “CCPA”) in June 2018, putting into place new data privacy rights for consumers, 
effective in January 2020. Legislators have stated that they intend to propose amendments to the CCPA before it goes into 
effect, and it remains unclear what, if any, modifications will be made to this legislation or how it will be interpreted. We will 
likely have to incur significant implementation costs to ensure compliance with the CCPA, and we could see increased 
litigation costs once the law goes into effect. If we are unable to put proper controls and procedures in place to ensure 
compliance, it could have an adverse effect on our business. Other states are considering similar legislation, which, if passed, 
could create more risks and potential costs for us.

Failure to comply with applicable regulations could have a material adverse effect on our business, financial condition and 
operating results. We could be subject to fines, forfeitures, and other penalties (including, in extreme cases, revocation of our 
spectrum licenses) for failure to comply with FCC or other governmental regulations, even if any such non-compliance was 
unintentional. The loss of any licenses, or any related fines or forfeitures, could adversely affect our business, financial 
condition, and operating results.

Unfavorable outcomes of legal proceedings may adversely affect our business, financial condition and operating results.

We are regularly involved in a number of legal proceedings before various state and federal courts, the FCC, the FTC, other 
federal agencies, and state and local regulatory agencies, including state attorneys general. Such legal proceedings can be 
complex, costly, and highly disruptive to our business operations by diverting the attention and energy of management and 
other key personnel. The assessment of the outcome of legal proceedings, including our potential liability, if any, is a highly 
subjective process that requires judgments about future events that are not within our control. The amounts ultimately received 
or paid upon settlement or pursuant to final judgment, order or decree may differ materially from amounts accrued in our 
financial statements. In addition, litigation or similar proceedings could impose restraints on our current or future manner of 
doing business. Such potential outcomes including judgments, awards, settlements or orders could have a material adverse 
effect on our business, financial condition and operating results.

We offer highly regulated financial services products. These products expose us to a wide variety of state and federal 
regulations.

The financing of devices, through our EIP and JUMP! On Demand programs, has expanded our regulatory compliance 
obligations. Failure to remain compliant with applicable regulations, may increase our risk exposure in the following areas:

• 

• 

consumer complaints and potential examinations or enforcement actions by federal and state regulatory agencies, 
including but not limited to the Consumer Financial Protection Bureau, state attorneys general, the FCC and the FTC; 
and
regulatory fines, penalties, enforcement actions, civil litigation, and/or class action lawsuits.

Failure to comply with applicable regulations and the realization of any of these risks could have a material adverse effect on 
our business, financial condition, and operating results.

16

We may not be able to adequately protect the intellectual property rights on which our business depends or may be 
accused of infringing intellectual property rights of third parties.

We rely on a combination of patent, service mark, trademark, and trade secret laws and contractual restrictions to establish and 
protect our proprietary rights, all of which offer only limited protection. The steps we have taken to protect our intellectual 
property may not prevent the misappropriation of our proprietary rights. We may not have the ability in certain jurisdictions to 
adequately protect intellectual property rights. Moreover, others may independently develop processes and technologies that are 
competitive to ours. Also, we may not be able to discover or determine the extent of any unauthorized use of our proprietary 
rights. Unauthorized use of our intellectual property rights may increase the cost of protecting these rights or reduce our 
revenues. We cannot be sure that any legal actions against such infringers will be successful, even when our rights have been 
infringed. We cannot assure you that our pending or future patent applications will be granted or enforceable, or that the rights 
granted under any patent that may be issued will provide us with any competitive advantages. In addition, we cannot assure you 
that any trademark or service mark registrations will be issued with respect to pending or future applications or will provide 
adequate protection of our brands. We do not have insurance coverage for intellectual property losses, and as such, a charge for 
an anticipated settlement or an adverse ruling awarding damages represents an unplanned loss event. Any of these factors could 
have a material adverse effect on our business, financial condition, and operating results.

Third parties may claim we infringe their intellectual property rights. We are a defendant in numerous intellectual property 
lawsuits, including patent infringement lawsuits, which exposes us to the risk of adverse financial impact either by way of 
significant settlement amounts or damage awards. As we adopt new technologies and new business systems and provide 
customers with new products and/or services, we may face additional infringement claims. These claims could require us to 
cease certain activities or to cease selling relevant products and services. These claims can be time-consuming and costly to 
defend, and divert management resources, and expose us to significant damages awards or settlements, any or all of which 
could have a material adverse effect on our operations and financial condition. In addition to litigation directly involving our 
Company, our vendors and suppliers can be threatened with patent litigation and/or subjected to the threat of disruption or 
blockage of sale, use, or importation of products, posing the risk of supply chain interruption to particular products and 
associated services which could have a material adverse effect on our business, financial condition and operating results.

Our business may be impacted by new or amended tax laws or regulations, judicial interpretations of same or 
administrative actions by federal, state, and/or local taxing authorities.

In connection with the products and services we sell, we calculate, collect, and remit various federal, state, and local taxes, fees 
and regulatory charges (“tax” or “taxes”) to numerous federal, state and local governmental authorities, including federal USF 
contributions and common carrier regulatory fees. In addition, we incur and pay state and local taxes and fees on purchases of 
goods and services used in our business.

Tax laws are dynamic and subject to change as new laws are passed and new interpretations of the law are issued or applied. In 
many cases, the application of existing, newly enacted or amended tax laws (such as the U.S. Tax Cuts and Jobs Act of 2017) 
may be uncertain and subject to differing interpretations, especially when evaluated against new technologies and 
telecommunications services, such as broadband internet access and cloud related services. Changes in tax laws could also 
impact revenue reported on tax inclusive plans.

In the event that we have incorrectly described, disclosed, determined, calculated, assessed, or remitted amounts that were due 
to governmental authorities, we could be subject to additional taxes, fines, penalties, or other adverse actions, which could 
materially impact our business, financial condition and operating results. In the event that federal, state, and/or local 
municipalities were to significantly increase taxes on our network, operations, or services, or seek to impose new taxes, it could 
have a material adverse effect on our business, financial condition and operating results.

Our wireless licenses are subject to renewal and may be revoked in the event that we violate applicable laws.

Our existing wireless licenses are subject to renewal upon the expiration of the 10-year or 15-year period for which they are 
granted. Historically, the FCC has approved our license renewal applications. However, the Communications Act provides that 
licenses may be revoked for cause and license renewal applications denied if the FCC determines that a renewal would not 
serve the public interest. In addition, our licenses are subject to our compliance with the terms set forth in the agreement 
pertaining to national security among us, DT, the Federal Bureau of Investigation, the Department of Justice and the 
Department of Homeland Security. The failure of DT or the Company to comply with the terms of this agreement could result 
in fines, injunctions and other penalties, including potential revocation or non-renewal of our spectrum licenses. If we fail to 
timely file to renew any wireless license or fail to meet any regulatory requirements for renewal, including construction and 

17

substantial service requirements, we could be denied a license renewal. Many of our wireless licenses are subject to interim or 
final construction requirements and there is no guarantee that the FCC will find our construction, or the construction of prior 
licensees, sufficient to meet the build-out or renewal requirements. Accordingly, we cannot assure you that the FCC will renew 
our wireless licenses upon their expiration. If any of our wireless licenses were to be revoked or not renewed upon expiration, 
we would not be permitted to provide services under that license, which could have a material adverse effect on our business, 
financial condition, and operating results.

Our business could be adversely affected by findings of product liability for health or safety risks from wireless devices 
and transmission equipment, as well as by changes to regulations or radio frequency emission standards.

We do not manufacture the devices or other equipment that we sell, and we depend on our suppliers to provide defect-free and 
safe equipment. Suppliers are required by applicable law to manufacture their devices to meet certain governmentally imposed 
safety criteria. However, even if the devices we sell meet the regulatory safety criteria, we could be held liable with the 
equipment manufacturers and suppliers for any harm caused by products we sell if such products are later found to have design 
or manufacturing defects. We generally seek to enter into indemnification agreements with the manufacturers who supply us 
with devices to protect us from losses associated with product liability, but we cannot guarantee that we will be fully protected 
against all losses associated with a product that is found to be defective.

Allegations have been made that the use of wireless handsets and wireless transmission equipment, such as cell towers, may be 
linked to various health concerns, including cancer and brain tumors. Lawsuits have been filed against manufacturers and 
carriers in the industry claiming damages for alleged health problems arising from the use of wireless handsets. In addition, the 
FCC has from time to time gathered data regarding wireless handset emissions and its assessment of this issue may evolve 
based on its findings. The media has also reported incidents of handset battery malfunction, including reports of batteries that 
have overheated. These allegations may lead to changes in regulatory standards. There have also been other allegations 
regarding wireless technology, including allegations that wireless handset emissions may interfere with various electronic 
medical devices (including hearing aids and pacemakers), airbags and anti-lock brakes. Defects in the products of our suppliers, 
such as the 2016 recall by a handset original equipment manufacturer on one of its smartphone devices, could have a material 
adverse effect on our business, financial condition and operating results.

Additionally, there are safety risks associated with the use of wireless devices while operating vehicles or equipment. Concerns 
over any of these risks and the effect of any legislation, rules or regulations that have been and may be adopted in response to 
these risks could limit our ability to sell our wireless services.

Risks Related to Ownership of our Common Stock

We are controlled by DT, whose interests may differ from the interests of our other stockholders.

DT beneficially owns and possesses majority voting power of the fully diluted shares of our common stock. Through its control 
of the voting power of our common stock and the rights granted to DT in our certificate of incorporation and the Stockholder’s 
Agreement, DT controls the election of our directors and all other matters requiring the approval of our stockholders. By virtue 
of DT’s voting control, we are a “controlled company,” as defined in The NASDAQ Stock Market LLC (“NASDAQ”) listing 
rules, and are not subject to NASDAQ requirements that would otherwise require us to have a majority of independent 
directors, a nominating committee composed solely of independent directors or a compensation committee composed solely of 
independent directors. Accordingly, our stockholders will not be afforded the same protections generally as stockholders of 
other NASDAQ-listed companies with respect to corporate governance for so long as we rely on these exemptions from the 
corporate governance requirements.

In addition, our certificate of incorporation and the Stockholder’s Agreement restrict us from taking certain actions without 
DT’s prior written consent as long as DT beneficially owns 30% or more of the outstanding shares of our common stock, 
including:

• 

• 

• 

• 

the incurrence of debt (excluding certain permitted debt) if our consolidated ratio of debt to cash flow, as defined in 
the indenture dated April 28, 2013, for the most recently ended four full fiscal quarters for which financial statements 
are available would exceed 5.25 to 1.0 on a pro forma basis;
the acquisition of any business, debt or equity interests, operations or assets of any person for consideration in excess 
of $1.0 billion;
the sale of any of our or our subsidiaries’ divisions, businesses, operations or equity interests for consideration in 
excess of $1.0 billion;
the incurrence of secured debt (excluding certain permitted secured debt);

18

• 
• 
• 

• 

any change in the size of our Board of Directors;
the issuances of equity securities in excess of 10% of our outstanding shares or to repurchase debt held by DT;
the repurchase or redemption of equity securities or the declaration of extraordinary or in-kind dividends or 
distributions other than on a pro rata basis; and
the termination or hiring of our chief executive officer.

These restrictions could prevent us from taking actions that our Board of Directors may otherwise determine are in the best 
interests of the Company and our stockholders or that may be in the best interests of our other stockholders.

DT effectively has control over all matters submitted to our stockholders for approval, including the election or removal of 
directors, changes to our certificate of incorporation, a sale or merger of our Company and other transactions requiring 
stockholder approval under Delaware law. DT’s controlling interest may have the effect of making it more difficult for a third 
party to acquire, or discouraging a third party from seeking to acquire, the Company. DT may have strategic, financial, or other 
interests different from our other stockholders, including as the holder of a substantial amount of our indebtedness and as the 
counter-party in a number of commercial arrangements, and may make decisions adverse to the interests of our other 
stockholders.

In addition, we license certain trademarks from DT, including the right to use the trademark “T-Mobile” as a name for the 
Company and our flagship brand, under a trademark license agreement with DT. As described in more detail in our proxy 
statement under the heading “Transactions with Related Persons and Approval”, we are obligated under the trademark license 
agreement to pay DT a royalty in an amount equal to 0.25%, which we refer to as the royalty rate, of the net revenue (as 
defined in the trademark license) generated by products and services we sell under the licensed trademarks. The trademark 
license agreement includes a royalty rate adjustment mechanism that would have occurred in early 2018 and potentially 
resulted in a new royalty rate effective in January 2019. The license agreement includes a royalty rate adjustment mechanism 
that has been postponed until the conclusion of the proposed Sprint Merger. The current royalty rate will remain effective until 
that time. The royalty rate under the license agreement will be adjusted retroactively if the Business Combination Agreement is 
terminated. We also have the right to terminate the trademark license upon one year’s prior notice. An increase in the royalty 
rate or termination of the trademark license could have a material adverse effect on our business, financial condition and 
operating results.

Future sales or issuances of our common stock, including sales by DT, could have a negative impact on our stock price.

We cannot predict the effect, if any, that market sales of shares or the availability of shares of our common stock will have on 
the prevailing trading price of our common stock from time to time. Sales or issuances of a substantial number of shares of our 
common stock could cause our stock price to decline and could result in dilution of your shares.

We and DT are parties to the Stockholder’s Agreement pursuant to which DT is free to transfer its shares in public sales without 
notice, as long as such transactions would not result in the transferee owning 30% or more of the outstanding shares of our 
common stock. If a transfer would exceed the 30% threshold, it is prohibited unless the transferee makes a binding offer to 
purchase all of the other outstanding shares on the same price and terms. The Stockholder’s Agreement does not otherwise 
impose any other restrictions on the sales of common stock by DT. Moreover, we have filed a shelf registration statement with 
respect to the common stock and certain debt securities held by DT, which would facilitate the resale by DT of all or any 
portion of the shares of our common stock it holds. The sale of shares of our common stock by DT (other than in transactions 
involving the purchase of all of our outstanding shares) could significantly increase the number of shares available in the 
market, which could cause a decrease in our stock price. In addition, even if DT does not sell a large number of its shares into 
the market, its right to transfer a large number of shares into the market may depress our stock price.

Our stock price may be volatile and may fluctuate based upon factors that have little or nothing to do with our business, 
financial condition and operating results.

The trading prices of the securities of communications companies historically have been highly volatile, and the trading price 
of our common stock may be subject to wide fluctuations. Our stock price may fluctuate in reaction to a number of events and 
factors that may include, among other things:

• 
• 

• 

our or our competitors’ actual or anticipated operating and financial results; 
introduction of new products and services by us or our competitors or changes in service plans or pricing by us or our 
competitors;
analyst projections, predictions and forecasts, analyst target prices for our securities and changes in, or our failure to 
meet, securities analysts’ expectations;

19

transaction in our common stock by major investors;
share repurchases by us or purchases by DT;

• 
• 
•  DT’s financial performance, results of operation, or actions implied or taken by DT;
• 
• 
•  market perceptions relating to our services, network, handsets, and deployment of our LTE platform and our access to 

entry of new competitors into our markets or perceptions of increased price competition, including a price war;
our performance, including subscriber growth, and our financial and operational metric performance;

iconic handsets, services, applications, or content;

•  market perceptions of the wireless communications industry and valuation models for us and the industry;
• 
• 
• 
• 
• 
• 

conditions or trends in the Internet and the industry sectors in which we operate;
changes in our credit rating or future prospects;
changes in interest rates;
changes in our capital structure, including issuance of additional debt or equity to the public;
the availability or perceived availability of additional capital in general and our access to such capital;
actual or anticipated consolidation, or other strategic mergers or acquisition activities involving us or our competitors, 
or other participants in related or adjacent industries, or market speculations regarding such activities, including the 
pending Merger and views of market participants regarding the likelihood the conditions to the Merger will be 
satisfied and the anticipated benefits of the Merger will be realized;
disruptions of our operations or service providers or other vendors necessary to our network operations; 
the general state of the U.S. and world politics and economies; and
availability of additional spectrum, whether by the announcement, commencement, bidding and closing of auctions for 
new spectrum or the acquisition of companies that own spectrum, and the extent to which we or our competitors 
succeed in acquiring additional spectrum.

• 
• 
• 

In addition, the stock market has been volatile in the recent past and has experienced significant price and volume fluctuations, 
which may continue for the foreseeable future. This volatility has had a significant impact on the trading price of securities 
issued by many companies, including companies in the communications industry. These changes frequently occur irrespective 
of the operating performance of the affected companies. Hence, the trading price of our common stock could fluctuate based 
upon factors that have little or nothing to do with our business, financial condition and operating results.

We have never paid or declared any cash dividends on our common stock, and we do not intend to declare or pay any 
cash dividends on our common stock in the foreseeable future.

We have never paid or declared any cash dividends on our common stock, and we do not intend to declare or pay any cash 
dividends on our common stock in the foreseeable future. Our credit facilities and the indentures and supplemental indentures 
governing our long-term debt to affiliates and third parties contain covenants that, among other things, restrict our ability to 
declare or pay dividends on our common stock. We currently intend to use future earnings, if any, to invest in our business and 
to fund our previously authorized stock repurchase program if the Merger fails to close.

Our previously announced stock repurchase program, and any subsequent stock purchase program put in place from 
time to time, could affect the price of our common stock, increase the volatility of our common stock and could diminish 
our cash reserves. Such repurchase program may be suspended or terminated at any time, which may result in a 
decrease in the trading price of our common stock.

We may have in place from time to time, a stock repurchase program. Any such stock repurchase program adopted will not 
obligate the Company to repurchase any dollar amount or number of shares of common stock and may be suspended or 
discontinued at any time, which could cause the market price of our common stock to decline. The timing and actual number of 
shares repurchased under any such stock repurchase program depends on a variety of factors including the timing of open 
trading windows, the price of our common stock, corporate and regulatory requirements and other market conditions. We may 
effect repurchases under any stock repurchase program from time to time in the open market, in privately negotiated 
transactions or otherwise, including accelerated stock repurchase arrangements. Repurchases pursuant to any such stock 
repurchase program could affect our stock price and increase its volatility. The existence of a stock repurchase program could 
also cause our stock price to be higher than it would be in the absence of such a program and could potentially reduce the 
market liquidity for our stock. There can be no assurance that any stock repurchases will enhance stockholder value because the 
market price of our common stock may decline below the levels at which we repurchased shares of common stock. Although 
our stock repurchase program is intended to enhance stockholder value, short-term stock price fluctuations could reduce the 
program’s effectiveness. Additionally, our share repurchase program could diminish our cash reserves, which may impact our 
ability to finance future growth and to pursue possible future strategic opportunities and acquisitions. See Note 12 – 
Repurchases of Common Stock of the Notes to the Consolidated Financial Statements included in Part II of this Form 10-K for 
further information.

20

Risks Related to the Proposed Transactions

The closing of the Transactions is subject to a number of conditions, including the receipt of approvals from various 
governmental entities, which may not approve the Transactions, may delay the approvals for, or may impose conditions 
or restrictions on, jeopardize or delay completion of, or reduce or delay the anticipated benefits of, the Transactions, 
and if these conditions are not satisfied or waived, the Transactions will not be completed.

The completion of the Transactions is subject to a number of conditions, including, among others, obtaining certain 
governmental authorizations, consents, orders or other approvals, including the expiration or termination of applicable waiting 
periods under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, the receipt of required approvals from the FCC and 
any state and territorial public utility commissions or similar state and foreign regulatory bodies, and the absence of any 
injunction prohibiting the Transactions or any legal requirements enacted by a court or other governmental entity preventing the 
completion of the Transactions. There is no assurance that these required authorizations, consents, orders or other approvals 
will be obtained or that they will be obtained in a timely manner, or whether they will be subject to required actions, conditions, 
limitations or restrictions on the combined company’s business, operations or assets. If any such required actions, conditions, 
limitations or restrictions are imposed, they may jeopardize or delay completion of the Transactions, reduce or delay the 
anticipated benefits of the Transactions or allow the parties to the Business Combination Agreement to terminate the Business 
Combination Agreement, which could result in a material adverse effect on our or the combined company’s business, financial 
condition or operating results. In addition, the completion of the Transactions is also subject to T-Mobile USA having specified 
minimum credit ratings on the closing date of the Transactions (after giving effect to the Merger) from at least two of three 
specified credit rating agencies, subject to certain qualifications. In the event that we terminate the Business Combination 
Agreement in connection with a failure to satisfy the closing condition related to the specified minimum credit ratings, then in 
certain circumstances, we may be required to pay Sprint an amount equal to $600 million. If the Transactions are not completed 
by April 29, 2019 (subject to extension to July 29, 2019, and further extension to October 29, 2019, if the only conditions not 
satisfied or waived (other than those conditions that by their terms are to be satisfied at the closing, which conditions are then 
capable of being satisfied) are conditions relating to the required regulatory and other governmental consents and the absence 
of restraints), either we or Sprint may terminate the Business Combination Agreement. The Business Combination Agreement 
may also be terminated if the other conditions to closing are not satisfied, and we and Sprint may also mutually decide to 
terminate the Business Combination Agreement.

Failure to complete the Merger could negatively impact us and our business, assets, liabilities, prospects, outlook, 
financial condition or results of operations.

If the Merger is not completed for any reason, we may be subject to a number of material risks. The price of our common stock 
may decline to the extent that its current market price reflects a market assumption that the Merger will be completed. In 
addition, some costs related to the Transactions must be paid by us whether or not the Transactions are completed. Furthermore, 
we may experience negative reactions from our stockholders, customers, employees, suppliers, distributors, retailers, dealers 
and others who deal with us, which could have an adverse effect on our business, financial condition and results of operations.

In addition, it is expected that if the Merger is not completed, we will continue to lack the network, scale and financial 
resources of the current market share leaders in, and other companies that have more recently begun providing, wireless 
services. Further, if the Merger is not completed, it is expected that we will not be able to deploy a nationwide 5G network on 
the same scale and on the same timeline as the combined company, and therefore will continue to be limited in their respective 
abilities to compete effectively in the 5G era.

We are subject to various uncertainties, including litigation and contractual restrictions and requirements while the 
Transactions are pending that could disrupt our or the combined company’s business and adversely affect our or the 
combined company’s business, assets, liabilities, prospects, outlook, financial condition and results of operations.

Uncertainty about the effect of the Transactions on employees, customers, suppliers, vendors, distributors, dealers and retailers 
may have an adverse effect on us or the combined company. These uncertainties may impair the ability to attract, retain and 
motivate key personnel during the pendency of the Transactions and, if the Transactions are completed, for a period of time 
thereafter, as existing and prospective employees may experience uncertainty about their future roles with the combined 
company. If key employees depart because of issues related to the uncertainty and difficulty of integration or a desire not to 
remain with the combined company, the combined company’s business following the completion of the Transactions could be 
negatively impacted. We or the combined company may have to incur significant costs in identifying, hiring and retaining 
replacements for departing employees and may lose significant expertise and talent. Additionally, these uncertainties could 
cause customers, suppliers, distributors, dealers, retailers and others to seek to change or cancel existing business relationships 
21

with us or the combined company or fail to renew existing relationships. Suppliers, distributors and content and application 
providers may also delay or cease developing for us or the combined company new products that are necessary for the 
operations of its business due to the uncertainty created by the Transactions. Competitors may also target our existing 
customers by highlighting potential uncertainties and integration difficulties that may result from the Transactions.
The Business Combination Agreement also restricts us, without Sprint’s consent, from taking certain actions outside of the 
ordinary course of business while the Transactions are pending, including, among other things, certain acquisitions or 
dispositions of businesses and assets, entering into or amending certain contracts, repurchasing or issuing securities, making 
capital expenditures and incurring indebtedness, in each case subject to certain exceptions. These restrictions may have a 
significant negative impact on our business, results of operations and financial condition.

Management and financial resources have been diverted and will continue to be diverted toward the completion of the 
Transactions. We have incurred, and expect to incur, significant costs, expenses and fees for professional services and other 
transaction costs in connection with the Transactions. These costs could adversely affect our or the combined company’s 
financial condition and results of operations.

In addition, we and our affiliates are involved in various disputes, governmental and/or regulatory inspections, investigations 
and proceedings and litigation matters that arise from time to time, and it is possible that an unfavorable resolution of these 
matters could adversely affect us and our results of operations, financial condition and cash flows and the results of operations, 
financial condition and cash flows of the combined company.

The Business Combination Agreement contains provisions that restrict the ability of our Board to pursue alternatives to 
the Transactions.

The Business Combination Agreement contains non-solicitation provisions that restrict our ability to solicit, initiate, knowingly 
encourage or knowingly take any other action designed to facilitate, any inquiries regarding, or the making of, any proposal the 
completion of which would constitute an alternative transaction for purposes of the Business Combination Agreement. In 
addition, the Business Combination Agreement does not permit us to terminate the Business Combination Agreement in order 
to enter into an agreement providing for, or to complete, such an alternative transaction.

Our directors and officers may have interests in the Transactions different from the interests of our stockholders.

Certain of our directors and executive officers negotiated the terms of the Business Combination Agreement. Our directors and 
executive officers may have interests in the Transactions that are different from, or in addition to, those of our stockholders. 
These interests include, but are not limited to, the continued service of certain of our directors as directors of the combined 
company, the continued employment of certain of our executive officers by the combined company, severance agreements and 
amended employment terms and other rights held by our directors and executive officers, and provisions in the Business 
Combination Agreement regarding continued indemnification of and advancement of expenses to our directors and officers.

Risks Related to Integration and the Combined Company

Although we expect that the Transactions will result in synergies and other benefits, those synergies and benefits may 
not be realized or may not be realized within the expected time frame.

Our ability to realize the anticipated benefits of the Transactions will depend, to a large extent, on the combined company’s 
ability to integrate our and Sprint’s businesses in a manner that facilitates growth opportunities and achieves the projected 
standalone cost savings and revenue growth trends identified by each company without adversely affecting current revenues 
and investments in future growth. In addition, some of the anticipated synergies are not expected to occur for a significant time 
period following the completion of the Transactions and will require substantial capital expenditures in the near term to be fully 
realized. Even if the combined company is able to integrate the two companies successfully, the anticipated benefits of the 
Transactions, including the expected synergies and network benefits, may not be realized fully or at all or may take longer to 
realize than expected.

Our business and Sprint’s business may not be integrated successfully or such integration may be more difficult, time 
consuming or costly than expected. Operating costs, customer loss and business disruption, including difficulties in 
maintaining relationships with employees, customers, suppliers or vendors, may be greater than expected following the 
Transactions. Revenues following the Transactions may be lower than expected.

The combination of two independent businesses is complex, costly and time-consuming and may divert significant 
management attention and resources to combining our and Sprint’s business practices and operations. This process may disrupt 
22

our business. The failure to meet the challenges involved in combining the two businesses and to realize the anticipated benefits 
of the Transactions could cause an interruption of, or a loss of momentum in, the activities of the combined company and could 
adversely affect the results of operations of the combined company. The overall combination of our and Sprint’s businesses 
may also result in material unanticipated problems, expenses, liabilities, competitive responses, and loss of customer and other 
business relationships. The difficulties of combining the operations of the companies include, among others:

• 
• 

• 

• 

• 

• 
• 
• 

• 
• 
• 

• 
• 

the diversion of management attention to integration matters;
difficulties in integrating operations and systems, including intellectual property and communications systems, 
administrative and information technology infrastructure and financial reporting and internal control systems;
challenges in conforming standards, controls, procedures and accounting and other policies, business cultures and 
compensation structures between the two companies;
differences in control environments, cultures, and auditor expectations may result in future weaknesses and 
deficiencies while we work to integrate the companies and align guidelines and practices;
alignment of key performance measurements may result in a greater need to communicate and manage clear 
expectations while we work to integrate the companies and align guidelines and practices;
difficulties in integrating employees and attracting and retaining key personnel;
challenges in retaining existing customers and obtaining new customers;
difficulties in achieving anticipated cost savings, synergies, accretion targets, business opportunities, financing 
plans and growth prospects from the combination;
difficulties in managing the expanded operations of a significantly larger and more complex company;
the impact of the additional debt financing expected to be incurred in connection with the Transactions;
the transition of management to the combined company management team, and the need to address possible 
differences in corporate cultures and management philosophies;
contingent liabilities that are larger than expected; and
potential unknown liabilities, adverse consequences and unforeseen increased expenses associated with the 
Transactions.

Some of these factors are outside of our control and/or will be outside the control of the combined company, and any one of 
them could result in lower revenues, higher costs and diversion of management time and energy, which could materially impact 
the business, financial condition and results of operations of the combined company. In addition, even if the operations of our 
and Sprint’s businesses are integrated successfully, the full benefits of the Merger may not be realized, including, among others, 
the synergies, cost savings or sales or growth opportunities that are expected. These benefits may not be achieved within the 
anticipated time frame or at all. Further, additional unanticipated costs may be incurred in the integration of our and Sprint’s 
businesses. All of these factors could cause dilution to the earnings per share of the combined company, decrease or delay the 
projected accretive effect of the Merger, and negatively impact the price of our common stock following the Merger. As a 
result, it cannot be assured that the combination of T-Mobile and Sprint will result in the realization of the full benefits 
expected from the Transactions within the anticipated time frames or at all.

The indebtedness of the combined company following the completion of the Transactions will be substantially greater 
than the indebtedness of each of T-Mobile and Sprint on a standalone basis prior to the execution of the Business 
Combination Agreement. This increased level of indebtedness could adversely affect the combined company’s business 
flexibility and increase its borrowing costs.

In connection with the Transactions, we and Sprint have conducted, and expect to conduct, certain pre-Merger financing 
transactions, which will be used in part to prepay a portion of our and Sprint’s existing indebtedness and to fund liquidity 
needs. After giving effect to the pre-Merger financing transactions and the Transactions, we anticipate that the combined 
company will have consolidated indebtedness of up to approximately $75.0 billion to $77.0 billion, based on estimated 
December 31, 2018 debt and cash balances and excluding tower obligations.

Our substantially increased indebtedness following the Transactions will have the effect, among other things, of reducing our 
flexibility to respond to changing business, economic, market and industry conditions and increasing the amount of cash 
required to meet interest payments. In addition, this increased level of indebtedness following the Transactions may reduce 
funds available to support efforts to combine our and Sprint’s businesses and realize the expected benefits of the Transactions, 
and may also reduce funds available for capital expenditures, share repurchases and other activities that may put the combined 
company at a competitive disadvantage relative to other companies with lower debt levels. Further, it may be necessary for the 
combined company to incur substantial additional indebtedness in the future, subject to the restrictions contained in its debt 
instruments, which could increase the risks associated with the capital structure of the combined company.

23

Because of the substantial indebtedness of the combined company following the completion of the Transactions, there is 
a risk that the combined company may not be able to service its debt obligations in accordance with their terms.

The ability of the combined company to service its substantial debt obligations following the Transactions will depend in part 
on future performance, which will be affected by business, economic, market and industry conditions and other factors, 
including the ability of the combined company to achieve the expected benefits of the Transactions. There is no guarantee that 
the combined company will be able to generate sufficient cash flow to service its debt obligations when due. If the combined 
company is unable to meet such obligations or fails to comply with the financial and other restrictive covenants contained in 
the agreements governing such debt obligations, it may be required to refinance all or part of its debt, sell important strategic 
assets at unfavorable prices or make additional borrowings. The combined company may not be able to, at any given time, 
refinance its debt, sell assets or make additional borrowings on commercially reasonable terms or at all, which could have a 
material adverse effect on its business, financial condition and results of operations after the Transactions.

Some or all of the combined company’s variable-rate indebtedness may use the LIBOR as a benchmark for establishing the 
rate. LIBOR is the subject of recent national, international and other regulatory guidance and proposals for reform. These 
reforms and other pressures may cause LIBOR to disappear entirely or to perform differently than in the past. The consequence 
of these developments cannot be entirely predicted, but could include an increase in the cost of our variable rate indebtedness. 
In addition, any hedging agreements we have and may continue to enter into to limit our exposure to interest rate increases or 
foreign currency fluctuations may not offer complete protection from these risks or may be unsuccessful, and consequently may 
effectively increase the interest rate we pay on our debt or the exchange rate with respect to such debt, and any portion not 
subject to such hedging agreements would have full exposure to interest rate increases or foreign currency fluctuations, as 
applicable. If any financial institutions that are parties to our hedging agreements were to default on their payment obligations 
to us, declare bankruptcy or become insolvent, we would be unhedged against the underlying exposures. Any of these risks 
could have a material adverse effect on our business, financial condition and operating results.

The agreements governing the combined company’s indebtedness and other financings will include restrictive covenants 
that limit the combined company’s operating flexibility.

The agreements governing the combined company’s indebtedness and other financings will impose material operating and 
financial restrictions on the combined company. These restrictions, subject in certain cases to customary baskets, exceptions 
and maintenance and incurrence-based financial tests, may limit the combined company’s ability to engage in transactions and 
pursue strategic business opportunities, including the following:

• 
• 
• 
• 
• 
• 
• 
• 
• 

incurring additional indebtedness and issuing preferred stock;
paying dividends, redeeming capital stock or making other restricted payments or investments;
selling or buying assets, properties or licenses;
developing assets, properties or licenses which the combined company has or in the future may procure;
creating liens on assets securing indebtedness or other obligations;
participating in future FCC auctions of spectrum or private sales of spectrum;
engaging in mergers, acquisitions, business combinations or other transactions;
entering into transactions with affiliates; and
placing restrictions on the ability of subsidiaries to pay dividends or make other payments.

These restrictions could limit the combined company’s ability to obtain debt financing, make share repurchases, refinance or 
pay principal on its outstanding indebtedness, complete acquisitions for cash or indebtedness or react to business, economic, 
market and industry conditions and other changes in its operating environment or the economy. Any future indebtedness that 
the combined company incurs may contain similar or more restrictive covenants. Any failure to comply with the restrictions of 
the combined company’s debt agreements may result in an event of default under these agreements, which in turn may result in 
defaults or acceleration of obligations under these and other agreements, giving the combined company’s lenders the right to 
terminate any commitments they had made to provide it with further funds and to require the combined company to repay all 
amounts then outstanding.

The financing of the Transactions is not assured.

Although we have received debt financing commitments from lenders to provide various financing arrangements to facilitate 
the Transactions, the obligation of the lenders to provide these facilities is subject to a number of conditions and the financing 
of the Transactions may not be obtained on the expected terms or at all.

24

In particular, we have received commitments for $30.0 billion in debt financing to fund the Transactions which is comprised of 
(i) a $4.0 billion secured revolving credit facility, (ii) a $7.0 billion term loan credit facility and (iii) a $19.0 billion secured 
bridge loan facility. Our reliance on the financing from the $19.0 billion secured bridge loan facility commitment is intended to 
be reduced through one or more secured note offerings or other long-term financings prior to the merger closing. However, 
there can be no assurance that we will be able to issue any such secured notes or other long-term financings on terms we find 
acceptable or at all, especially in light of the recent debt market volatility, in which case we may have to exercise some or all of 
the commitments under the secured bridge facility to fund the Transactions. Accordingly, the costs of financing for the 
Transactions may be higher than expected.

Credit rating downgrades could adversely affect the businesses, cash flows, financial condition and operating results of 
T-Mobile and, following the Transactions, the combined company.

Credit ratings impact the cost and availability of future borrowings, and, as a result, cost of capital. Our current ratings reflect 
each rating agency’s opinion of our financial strength, operating performance and ability to meet our debt obligations or, 
following the completion of the Transactions, obligations to the combined company’s obligors. Each rating agency reviews 
these ratings periodically and there can be no assurance that such ratings will be maintained in the future. A downgrade in the 
rating of us and/or Sprint could adversely affect the businesses, cash flows, financial condition and operating results of T-
Mobile and, following the Transactions, the combined company.

We have incurred, and will incur, direct and indirect costs as a result of the Transactions.

We have incurred, and will incur, substantial expenses in connection with and as a result of completing the Transactions, and 
over a period of time following the completion of the Transactions, the combined company also expects to incur substantial 
expenses in connection with integrating and coordinating our and Sprint’s businesses, operations, policies and procedures. A 
portion of the transaction costs related to the Transactions will be incurred regardless of whether the Transactions are 
completed. While we have assumed that a certain level of transaction expenses will be incurred, factors beyond our control 
could affect the total amount or the timing of these expenses. Many of the expenses that will be incurred, by their nature, are 
difficult to estimate accurately. These expenses will exceed the costs historically borne by us. These costs could adversely 
affect our financial condition and results of operations prior to the Transactions and the financial condition and results of 
operations of the combined company following the Transactions.

Item 1B. Unresolved Staff Comments

None.

Item 2. Properties 

As of December 31, 2018, our significant properties that we primarily lease and use in connection with switching centers, data 
centers, call centers and warehouses were as follows:

Switching centers

Data centers

Call center

Warehouses

As of December 31, 2018, we primarily leased:

Approximate Number

Approximate Size in Square Feet

61

6

17

21

1,300,000

500,000

1,300,000

500,000

•  Approximately 64,000 macro towers and 21,000 distributed antenna system and small cell sites.

•  Approximately 2,200 T-Mobile and Metro by T-Mobile retail locations, including stores and kiosks ranging in size 

from approximately 100 square feet to 17,000 square feet.

•  Office space totaling approximately 1,000,000 square feet for our corporate headquarters in Bellevue, Washington. In 

January 2019, we executed leases totaling approximately 170,000 additional square feet for our corporate 
headquarters. We use these offices for engineering and administrative purposes. 

•  Office space throughout the U.S., totaling approximately 1,700,000 square feet, for use by our regional offices 

primarily for administrative, engineering and sales purposes.

25

Item 3. Legal Proceedings

See Note 15 – Commitments and Contingencies of the Notes to the Consolidated Financial Statements for information 
regarding certain legal proceedings in which we are involved.

Item 4. Mine Safety Disclosures 

None.

PART II.

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity 
Securities

Market Information

Our common stock is traded on the NASDAQ Global Select Market under the symbol “TMUS.” As of December 31, 2018, 
there were 265 registered stockholders of record of our common stock, but we estimate the total number of stockholders to be 
much higher as a number of our shares are held by brokers or dealers for their customers in street name.

Performance Graph

The graph below compares the five-year cumulative total returns of T-Mobile, the S&P 500 index, the NASDAQ Composite 
index and the Dow Jones US Mobile Telecommunications TSM index. The graph tracks the performance of a $100 investment, 
with the reinvestment of all dividends, from December 31, 2013 to December 31, 2018. 

COMPARISON OF 5 YEAR CUMULATIVE TOTAL RETURN*
Among T-Mobile US, Inc., the NYSE Composite Index,
 the S&P 500 Index, the NASDAQ Composite Index
and the Dow Jones US Mobile Telecommunications TSM Index

$200

$180

$160

$140

$120

$100

$80

$60

$40

$20

$0

2013

2014

2015

2016

2017

2018

T-Mobile US, Inc.
NYSE Composite

S&P 500

NASDAQ Composite
Dow Jones US Mobile Telecommunications TSM

*$100 invested on 12/31/13 in stock or index, including reinvestment of dividends.
Fiscal year ending December 31.

Copyright© 2019 Standard & Poor's, a division of S&P Global. All rights reserved.
Copyright© 2019 S&P Dow Jones Indices LLC, a division of S&P Global. All rights reserved.

26

T-Mobile US, Inc.

S&P 500

NASDAQ Composite

Dow Jones US Mobile Telecommunications TSM

At December 31,

2013

2014

2015

2016

2017

2018

$

100.00

$

80.08

$

116.29

$

170.96

$

188.79

$

100.00

100.00

100.00

113.69

114.62

89.33

115.26

122.81

93.68

129.05

133.19

119.39

157.22

172.11

122.09

189.09

150.33

165.84

145.29

The stock price performance included in this graph is not necessarily indicative of future stock price performance.

27

Item 6. Selected Financial Data

The following selected financial data are derived from our consolidated financial statements. The data below should be read 
together with Risk Factors included in Part I, Item 1A, Management’s Discussion and Analysis of Financial Condition and 
Results of Operations included in Part II, Item 7 and Financial Statements and Supplementary Data included in Part II, Item 8 
of this Form 10-K.

Selected Financial Data

(in millions, except per share and customer
amounts)

2018 (1)

As of and for the Year Ended December 31,

2017

2016

2015

2014

Statement of Operations Data

Total service revenues

Total revenues

Operating income

Total other expense, net
Income tax (expense) benefit (2)

Net income

Net income attributable to common stockholders

Earnings per share

Basic

Diluted

Balance Sheet Data

Cash and cash equivalents

Property and equipment, net

Spectrum licenses

Total assets

Total debt, excluding tower obligations

Stockholders' equity

Statement of Cash Flows and Operational
Data
Net cash provided by operating activities (3)

Purchases of property and equipment

Purchases of spectrum licenses and other
intangible assets, including deposits

Proceeds related to beneficial interests in 
securitization transactions (3)
Net cash (used in) provided by financing 
activities (3)
Total customers (in thousands) (4)

$

31,992

$

30,160

$

27,844

$

24,821

$

$

$

$

$

43,310

5,309

(1,392)

(1,029)

2,888

2,888

3.40

3.36

1,203

23,359

35,559

72,468

27,547

24,718

$

$

$

40,604

4,888

(1,727)

1,375

4,536

4,481

5.39

5.20

1,219

22,196

35,366

70,563

28,319

22,559

$

$

$

37,490

4,050

(1,723)

(867)

1,460

1,405

1.71

1.69

5,500

20,943

27,014

65,891

27,786

18,236

$

$

$

32,467

2,479

(1,501)

(245)

733

678

0.83

0.82

4,582

20,000

23,955

62,413

26,243

16,557

$

$

$

3,899

$

(5,541)

3,831

$

(5,237)

2,779

$

(4,702)

1,877

$

(4,724)

(127)

5,406

(3,336)

79,651

(5,828)

4,319

(1,367)

72,585

(3,968)

(1,935)

3,356

463

71,455

3,537

3,413

63,282

22,375

29,920

1,772

(1,359)

(166)

247

247

0.31

0.30

5,315

16,245

21,955

56,639

21,946

15,663

1,957

(4,317)

(2,900)

2,228

2,485

55,018

(1)  On January 1, 2018, we adopted Accounting Standards Update (“ASU”) 2014-09, “Revenue from Contracts with Customers (Topic 606)” and all the 

related amendments (collectively, the “new revenue standard”), using the modified retrospective method with the cumulative effect of initially applying 
the guidance recognized at the date of initial application. Comparative information has not been restated and continues to be reported under the standards 
in effect for those periods. See Note 1 – Summary of Significant Accounting Policies of the Notes to the Consolidated Financial Statements included in 
Part II, Item 8 of this Form 10-K for further information.

(2) 

In December 2017, the Tax Cuts and Jobs Act of 2017 (“TCJA”) was signed into legislation. The TCJA included numerous changes to existing tax law, 
including a permanent reduction in the federal corporate income tax rate from 35% to 21%. The rate reduction took place on January 1, 2018. We 
recognized a net tax benefit of $2.2 billion associated with the enactment of the TCJA in Income tax (expense) benefit in our Consolidated Statements of 
Comprehensive Income in the fourth quarter of 2017, primarily due to a re-measurement of deferred tax assets and liabilities. 

(3)  On January 1, 2018, we adopted ASU 2016-15, “Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments” (the 
“new cash flow standard”) which impacted the presentation of our cash flows related to our beneficial interests in securitization transactions, which is the 
deferred purchase price, resulting in a reclassification of cash inflows from Operating activities to Investing activities of approximately $5.4 billion, $4.3 
billion, $3.4 billion, $3.5 billion and $2.2 billion for the years ended December 31, 2018, 2017, 2016, 2015 and 2014, respectively, in our Consolidated 
Statements of Cash Flows. The new cash flow standard also impacted the presentation of our cash payments for debt prepayment and debt extinguishment 
costs, resulting in a reclassification of cash outflows from Operating activities to Financing activities of $212 million, $188 million and $39 million for 
the years ended December 31, 2018, 2017 and 2014, respectively, in our Consolidated Statements of Cash Flows. There were no cash payments for debt 
prepayment and debt extinguishment costs during the years ended December 31, 2016 and 2015. We have applied the new cash flow standard 
retrospectively to all periods presented. 

(4)  We believe current and future regulatory changes have made the Lifeline program offered by our wholesale partners uneconomical. We will continue to 
support our wholesale partners offering the Lifeline program, but have excluded the Lifeline customers from our reported wholesale subscriber base 
resulting in the removal of 4,528,000 reported wholesale customers in 2017.

28

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Overview

The objectives of our Management’s Discussion and Analysis of Financial Condition and Results of Operations (“MD&A”) are 
to provide users of our Consolidated Financial Statements with the following:

•  A narrative explanation from the perspective of management of our financial condition, results of operations, cash 

flows, liquidity and certain other factors that may affect future results;

•  Context to the financial statements; and

• 

Information that allows assessment of the likelihood that past performance is indicative of future performance.

Our MD&A is provided as a supplement to, and should be read together with, our audited Consolidated Financial Statements 
for the three years ended December 31, 2018, included in Part II, Item 8 of this Form 10-K. Except as expressly stated, the 
financial condition and results of operations discussed throughout our MD&A are those of T-Mobile US, Inc. and its 
consolidated subsidiaries.

Business Overview

Un-carrier Strategy

We are the Un-carrier. Through our Un-carrier strategy, we’ve disrupted the wireless communication services industry by 
listening to our customers and providing them with added value and an exceptional experience, including implementing 
signature initiatives that changed the wireless industry forever. These Un-carrier initiatives include the following launched 
during 2018:

• 

In August 2018, we introduced Un-carrier Next, a new initiative that radically changes the structure of our customer 
service department and solves several significant pain points for customers. Postpaid customers will get directly 
through to a human when they call customer support, and that human will be one member of a “Team of Experts” 
devoted to that customer and other customers in their geographic region. No bots, no bouncing, no BS.

•  Un-carrier Next also provided customers exclusive access to a free one-year Pandora Plus subscription via the T-
Mobile Tuesdays App in August 2018. In addition, we announced an exclusive multi-year partnership with Live 
Nation, the world’s largest live entertainment company, giving Un-carrier customers rock star status at Live Nation 
amphitheater and arena concerts, including access to last-minute reserve seats in sold-out sections and discounted 
tickets.

In September 2018, in connection with the rebranding of our prepaid brand, MetroPCS, as Metro by T-Mobile, we introduced 
new unlimited rate plans with tiers that feature added benefits of Google One and Amazon Prime as well as an expanded 
selection of the latest and greatest smartphones. Gone are the outdated perceptions that prepaid service is synonymous with 
limited coverage, cheap flip phones or bad credit.

Our ability to acquire and retain branded customers is important to our business in the generation of revenues and we believe 
our Un-carrier strategy, along with ongoing network improvements, has been successful in attracting and retaining customers as 
evidenced by continued branded customer growth and improved branded postpaid phone and branded prepaid customer churn.

(in thousands)

Net customer additions

Branded postpaid customers

Branded prepaid customers

Total branded customers

Year Ended December 31,

2018 Versus 2017

2017 Versus 2016

2018

2017

2016

# Change

% Change

# Change

% Change

4,459

460

4,919

3,620

855

4,475

4,097

2,508

6,605

839

(395)

444

23 %

(46)%

10 %

(477)

(1,653)

(2,130)

(12)%

(66)%

(32)%

29

Branded postpaid phone churn

Branded prepaid churn

Proposed Sprint Transaction

Year Ended December 31,

2018

2017

2016

Bps Change
2018 Versus
2017

Bps Change
2017 Versus
2016

1.01%

3.96%

1.18%

4.04%

1.30%

3.88%

-17 bps

-8 bps

-12 bps

16 bps

On April 29, 2018, we entered into the Business Combination Agreement to merge with Sprint in an all-stock transaction at a 
fixed exchange ratio of 0.10256 shares of T-Mobile common stock for each share of Sprint common stock, or 9.75 shares of 
Sprint common stock for each share of T-Mobile common stock. The combined company will be named “T-Mobile” and, as a 
result of the Merger, is expected to be able to rapidly launch a nationwide 5G network, accelerate innovation and increase 
competition in the U.S. wireless, video and broadband industries. Immediately following the Merger, it is anticipated that DT 
and SoftBank Group Corp. will hold, directly or indirectly, on a fully diluted basis, approximately 41.7% and 27.4%, 
respectively, of the outstanding T-Mobile common stock, with the remaining approximately 30.9% of the outstanding T-Mobile 
common stock held by other stockholders, based on closing share prices and certain other assumptions as of December 31, 
2018. The Merger is subject to regulatory approvals and certain other customary closing conditions. We expect to receive 
regulatory approval in the first half of 2019.

For more information regarding our Business Combination Agreement, see Note 2 – Business Combinations of the Notes to the 
Consolidated Financial Statements.

Acquisitions

•  On January 1, 2018, we closed on our previously announced Unit Purchase Agreement to acquire the remaining equity 
in Iowa Wireless Services, LLC (“IWS”), a 54% owned unconsolidated subsidiary, for a purchase price of $25 million. 
We accounted for our acquisition of IWS as a business combination and recognized a bargain purchase gain of 
approximately $25 million as part of our purchase price allocation and a gain on our previously held equity interest of 
approximately $15 million in Other income, net in 2018.

•  On January 22, 2018, we completed our acquisition of television innovator Layer3 TV for cash consideration of $318 
million. Upon closing of the transaction, Layer3 TV became a wholly-owned consolidated subsidiary. Layer3 TV 
acquires and distributes digital entertainment programming primarily through the internet to residential customers, 
offering direct to home digital television and multi-channel video programming distribution services. This transaction 
represented an opportunity to acquire a complementary service to our existing wireless service to advance our video 
strategy. We accounted for the purchase of Layer3 TV as a business combination and recognized $218 million of 
goodwill as part of our purchase price allocation.

For more information regarding our acquisitions, see Note 2 – Business Combinations of the Notes to the Consolidated 
Financial Statements.

Accounting Pronouncements Adopted During the Current Year

Revenue Recognition

On January 1, 2018, we adopted the new revenue standard. See Note 10 – Revenue from Contracts with Customers of the 
Notes to the Consolidated Financial Statements for information regarding the new revenue standard and Note 1 – Summary of 
Significant Accounting Policies of the Notes to the Consolidated Financial Statements for information regarding recently issued 
accounting standards.

30

The impact of our adoption of the new revenue standard is presented in Note 1 – Summary of Significant Accounting Policies 
of the Notes to the Consolidated Financial Statements and in the following table which presents a comparison of selected 
financial information under both the new revenue standard and the previous revenue standard for the year ended December 31, 
2018:

GAAP financial measures

Branded postpaid service revenues (in millions)

Branded prepaid service revenues (in millions)

Net income (in millions)

Performance measures

Branded postpaid phone ARPU

Branded postpaid ABPU

Branded prepaid ARPU

Non-GAAP financial measure

Adjusted EBITDA (in millions)

Statement of Cash Flows

Year Ended December 31, 2018

Previous
Revenue
Standard

New Revenue
Standard

Change

$

$

$

20,887

$

20,862

$

9,608

2,593

9,598

2,888

46.45

$

46.40

$

58.49

38.56

58.44

38.53

(25)

(10)

295

(0.05)

(0.05)

(0.03)

12,000

$

12,398

$

398

On January 1, 2018, we adopted the new cash flow standard which impacted the presentation of our cash flows related to our 
beneficial interests in securitization transactions, which is the deferred purchase price, resulting in a reclassification of cash 
inflows from Operating activities to Investing activities in our Consolidated Statements of Cash Flows. The new cash flow 
standard also impacted the presentation of our cash payments for debt prepayment and debt extinguishment costs, resulting in a 
reclassification of cash outflows from Operating activities to Financing activities in our Consolidated Statements of Cash 
Flows. We have applied the new cash flow standard retrospectively to all periods presented. For additional information 
regarding the new cash flow standard and the impact of our adoption, see “Selected Financial Data” and Note 1 – Summary of 
Significant Accounting Policies of the Notes to the Consolidated Financial Statements.

Financial Instruments

In January 2016, the Financial Accounting Standards Board (“FASB”) issued ASU 2016-01, “Financial Instruments (Topic 
825): Recognition and Measurement of Financial Assets and Financial Liabilities.” The standard addresses certain aspects of 
recognition, measurement, presentation and disclosure of financial instruments. The standard became effective for us, and we 
adopted the standard, on January 1, 2018. The standard requires the impact of adoption to be recorded to retained earnings 
under a modified retrospective approach. The implementation of this standard did not have a material impact on our 
Consolidated Financial Statements.

Income Taxes

In October 2016, the FASB issued ASU 2016-16, “Accounting for Income Taxes: Intra-Entity Transfers of Assets Other Than 
Inventory.” The standard requires that the income tax impact of intra-entity sales and transfers of property, except for inventory, 
be recognized when the transfer occurs. The standard became effective for us, and we adopted the standard, on January 1, 2018. 
The standard requires any deferred taxes not yet recognized on intra-entity transfers to be recorded to retained earnings under a 
modified retrospective approach. The implementation of this standard did not have a material impact on our Consolidated 
Financial Statements.

Derivatives and Hedging

In August 2017, the FASB issued ASU 2017-12, “Derivatives and Hedging (Topic 815): Targeted Improvement to Accounting 
for Hedging Activities.” The standard modified the guidance for the designation and measurement of qualifying hedging 
relationships and the presentation of hedge results. We adopted this standard on October 1, 2018, and have applied the standard 
to hedging transactions prospectively.

31

Hurricane Impacts

During 2018, we recognized $61 million in costs related to hurricanes, including $36 million in incremental costs to maintain 
services primarily in Puerto Rico related to hurricanes that occurred in 2017 and $25 million related to hurricanes that occurred 
in 2018. Additional costs related to a hurricane that occurred in 2018 are expected to be immaterial in the first quarter of 2019.

During 2018, we received reimbursement payments from our insurance carriers of $307 million related to hurricanes, of which 
$93 million was previously accrued for as a receivable as of December 31, 2017. 

We have accrued insurance recoveries related to a hurricane that occurred in 2018 of approximately $5 million for the year 
ended December 31, 2018 as an offset to the costs incurred within Cost of services in our Consolidated Statements of 
Comprehensive Income and as an increase to Other current assets in our Consolidated Balance Sheets.

The following table shows the impacts of hurricanes to our results, operating metrics and non-GAAP financial measures for the 
years ended December 31, 2018 and 2017. There were no significant hurricane impacts in 2016.

(in millions, except per share amounts)

Gross

Reim-
bursement

Net

Gross

Reim-
bursement

Net

Year Ended December 31, 2018

Year Ended December 31, 2017

Increase (decrease)

Revenues

Branded postpaid revenues

$

— $

— $

— $

    Of which, branded postpaid phone revenues

Branded prepaid revenues

    Total service revenues

Equipment revenues

Other revenues

Total revenues

Operating expenses

Cost of services

Cost of equipment sales

Selling, general and administrative

    Of which, bad debt expense

Total operating expenses

Operating income (loss)

Net income (loss)

Earnings per share

Basic

Diluted

Operating metrics

Bad debt expense and losses from sales of
receivables as a percentage of total revenues

Branded postpaid phone ARPU

Branded postpaid ABPU

Branded prepaid ARPU

Non-GAAP financial measures

Adjusted EBITDA

$

$

$

$

$

—

—

—

—

—

—

59

1

1

—

61

(61)

(41) $

(0.05) $

(0.05) $

—

— $

—

—

—

—

—

—

71

71

(135)

—

(13)

—

(148)

219

140

0.17

0.17

$

$

$

—

—

—

—

71

71

(76)

1

(12)

—

(87)

158

99

0.12

0.12

$

$

$

(37)

(35)

(11)

(48)

(8)

—

(56)

198

4

36

20

238

(294)

(193)

(0.23)

(0.22)

$

— $

—

—

—

—

—

—

(93)

—

—

—

(93)

93

63

0.07

0.07

$

$

$

$

$

$

(37)

(35)

(11)

(48)

(8)

—

(56)

105

4

36

20

145

(201)

(130)

(0.16)

(0.15)

—

— $

—

—

—

0.05%

— $

(0.09)

$

—

—

(0.08)

(0.05)

—%

— $

—

—

0.05%

(0.09)

(0.08)

(0.05)

(61) $

219

$

158

$

(294)

$

93

$

(201)

32

Results of Operations

Highlights for the years ended December 31, 2018, compared to the same period in 2017

•  Total revenues of $43.3 billion for the year ended December 31, 2018 increased $2.7 billion, or 7%, primarily driven 

by growth in service and equipment revenues as further discussed below.

• 

Service revenues of $32.0 billion for the year ended December 31, 2018 increased $1.8 billion, or 6%, primarily due to 
growth in our average branded customer base driven by the continued growth in existing and Greenfield markets 
including the growing success of new customer segments and rate plans such as T-Mobile ONE Unlimited 55+, T-
Mobile ONE Military, T-Mobile for Business and T-Mobile Essentials, along with lower churn, growth in connected 
devices and the success of our Metro by T-Mobile brand. 

•  Equipment revenues of $10.0 billion for the year ended December 31, 2018 increased $634 million, or 7%, primarily 
due to a higher average revenue per device sold and a positive impact from the new revenue standard of $393 million, 
partially offset by a decrease in the number of devices sold, excluding purchased leased devices, lower volumes of 
purchased leased devices at the end of the lease term and lower lease revenues.

•  Operating income of $5.3 billion for the year ended December 31, 2018 increased $421 million, or 9%, primarily due 
to higher Total revenues, partially offset by higher Selling, general and administrative expenses, Depreciation and 
amortization, Cost of equipment sales, Cost of services and lower Gains on disposal of spectrum licenses. Operating 
income for the year ended December 31, 2018 included the positive impacts from the adoption of the new revenue 
standard of $398 million and from insurance reimbursements related to hurricanes, net of costs incurred, of $158 
million as well as the negative impact of Costs associated with the Transactions of $196 million. Operating income 
also included gains on disposal of spectrum licenses of $235 million and the negative impact from hurricanes of $201 
million for the year ended December 31, 2017. 

•  Net income of $2.9 billion for the year ended December 31, 2018 decreased $1.6 billion, or 36%, primarily due to 

higher Income tax (expense) benefit, partially offset by higher Operating income and lower Other income (expense), 
net. Net income for the year ended December 31, 2018 included the positive impacts from the adoption of the new 
revenue standard of $295 million and from insurance reimbursements related to hurricanes, net of costs, of $99 million 
as well as the negative impact of Costs associated with the Transactions of $180 million. Net income also included the 
negative impact from hurricanes of $130 million and net, after-tax gains on disposal of spectrum licenses of $174 
million for the year ended December 31, 2017.

•  Adjusted EBITDA of $12.4 billion for the year ended December 31, 2018 increased $1.2 billion, or 11%, primarily 
due to higher Operating income driven by the factors described above. See “Performance Measures” for additional 
information.

•  Net cash provided by operating activities of $3.9 billion for the year ended December 31, 2018 increased $68 million, 

or 2%. See “Liquidity and Capital Resources” for additional information.

• 

Free Cash Flow of $3.6 billion for the year ended December 31, 2018 increased $827 million, or 30%. See “Liquidity 
and Capital Resources” for additional information.

33

Set forth below is a summary of our consolidated financial results:

(in millions)

Revenues

Branded postpaid revenues

Branded prepaid revenues

Wholesale revenues

Roaming and other service revenues

Total service revenues

Equipment revenues

Other revenues

Total revenues

Operating expenses

Cost of services, exclusive of depreciation
and amortization shown separately below

Cost of equipment sales

Selling, general and administrative

Depreciation and amortization

Cost of MetroPCS business combination

Gains on disposal of spectrum licenses

Total operating expense

Operating income

Other income (expense)

Interest expense

Interest expense to affiliates

Interest income

Other income (expense), net

Total other expense, net

Income before income taxes

Income tax (expense) benefit

Net income

Statement of Cash Flows Data

Net cash provided by operating activities

Net cash used in investing activities

Net cash (used in) provided by financing
activities

Non-GAAP Financial Measures

Adjusted EBITDA

Free Cash Flow

NM - Not Meaningful

Year Ended December 31,

2018 Versus 2017

2017 Versus 2016

2018

2017

2016

$ Change % Change

$ Change % Change

$

20,862

$

19,448

$

18,138

$

1,414

7 % $

1,310

9,598

1,183

349

31,992

10,009

1,309

43,310

6,307

12,047

13,161

6,486

—

—

38,001

5,309

(835)

(522)

19

(54)

(1,392)

3,917

(1,029)

2,888

3,899

(579)

$

$

9,380

1,102

230

8,553

903

250

30,160

27,844

9,375

1,069

8,727

919

40,604

37,490

6,100

11,608

12,259

5,984

—

(235)

35,716

4,888

(1,111)

(560)

17

(73)

5,731

10,819

11,378

6,243

104

(835)

33,440

4,050

(1,418)

(312)

13

(6)

(1,727)

(1,723)

3,161

1,375

4,536

3,831

(6,745)

$

$

2,327

(867)

1,460

2,779

(2,324)

$

$

$

$

218

81

119

1,832

634

240

2,706

207

439

902

502

—

235

2,285

421

276

38

2

19

335

756

2 %

7 %

52 %

6 %

7 %

22 %

7 %

3 %

4 %

7 %

8 %

NM

(100)%

6 %

9 %

(25)%

(7)%

12 %

(26)%

(19)%

24 %

827

199

(20)

2,316

648

150

3,114

369

789

881

(259)

(104)

600

2,276

838

307

(248)

4

(67)

(4)

834

(2,404)

(1,648)

(175)%

(36)% $

2,242

3,076

68

6,166

2 % $

1,052

(91)%

(4,421)

7 %

10 %

22 %

(8)%

8 %

7 %

16 %

8 %

6 %

7 %

8 %

(4)%

(100)%

(72)%

7 %

21 %

(22)%

79 %

31 %

NM

— %

36 %

(259)%

211 %

38 %

190 %

(3,336)

(1,367)

463

(1,969)

144 %

(1,830)

(395)%

$

12,398

$

11,213

$

10,639

$

1,185

3,552

2,725

1,433

827

11 % $

30 %

574

1,292

5 %

90 %

34

The following discussion and analysis is for the year ended December 31, 2018, compared to the same period in 2017 unless 
otherwise stated.

Total revenues increased $2.7 billion, or 7%, as discussed below.

Branded postpaid revenues increased $1.4 billion, or 7%, primarily from:

•  Higher average branded postpaid phone customers, primarily from growth in our customer base driven by the 

continued growth in existing and Greenfield markets including the growing success of new customer segments and 
rate plans such as T-Mobile ONE Unlimited 55+, T-Mobile ONE Military, T-Mobile for Business and T-Mobile 
Essentials, along with lower churn; and 

•  Higher average branded postpaid other customers; partially offset by 

•  Lower branded postpaid phone Average Revenue Per User (“ARPU”). See “Branded Postpaid Phone ARPU” in the 

“Performance Measures” section of this MD&A; and

•  The negative impact of the new revenue standard of $25 million, primarily due to the impact of certain promotions 
previously recognized as a reduction in equipment revenues now recognized as a reduction in branded postpaid 
revenues, partially offset by certain equipment revenues reclassified to branded postpaid revenues. 

Branded prepaid revenues increased $218 million, or 2%, primarily from:

•  Higher average branded prepaid customers driven by the success of our Metro by T-Mobile brand; partially offset by 

•  Lower branded prepaid ARPU. See “Branded Prepaid APRU” in the “Performance Measures” section of this MD&A; 

and

•  The negative impact of the new revenue standard of $10 million, primarily due to the impact of certain promotions 
previously recognized as a reduction in equipment revenues now recognized as a reduction in branded prepaid 
revenues. 

Wholesale revenues increased $81 million, or 7%, primarily from the continued success of our MVNO partnerships. 

Roaming and other service revenues increased $119 million, or 52%, primarily from an increase in international and 
domestic roaming revenues. 

Equipment revenues increased $634 million, or 7%, primarily from:

•  An increase of $1.1 billion in device sales revenues, excluding purchased leased devices, primarily due to: 

•  Higher average revenue per device sold due to an increase in the high-end device mix; and

•  A positive impact from the new revenue standard of $393 million primarily related to:

  Commission costs of $438 million previously recorded as a reduction in Equipment revenues now 

recorded as Selling, general and administrative expenses and certain promotions previously recorded 
as a reduction in Equipment revenues now recorded as a reduction in Service revenues; partially 
offset by

  Certain promotional bill credits now capitalized as contract assets and certain Equipment revenues 

now recognized as Service revenues; partially offset by

•  A 6% decrease in the number of devices sold, excluding purchased leased devices; partially offset by

•  A decrease of $310 million from lower volumes of purchased leased devices at the end of the lease term; and 

•  A decrease of $185 million in lease revenues from JUMP! On Demand customers preferring affordable device options 
on leasing programs with lower monthly lease payments and shifting focus to our EIP financing option for high-end 
devices. 

Under our JUMP! On Demand program, upon device upgrade or at lease end, customers must return or purchase their device. 
Revenue for purchased leased devices is recorded as equipment revenues when revenue is recognition criteria have been met.

35

Other revenues increased $240 million, or 22%, primarily due to revenue share agreements with third parties, the positive 
impact from $71 million in insurance reimbursements related to the hurricanes, and higher amortized imputed discount on EIP 
receivables due to continued growth in EIP sales.

Our operating expenses consist of the following categories:

•  Cost of services primarily includes costs directly attributable to providing wireless service through the operation of 
our network, including direct switch and cell site costs, such as rent, network access and transport costs, utilities, 
maintenance, associated labor costs, long distance costs, regulatory program costs, roaming fees paid to other carriers 
and data content costs. In addition, certain costs for customer appreciation programs are included in Cost of services.

•  Cost of equipment sales primarily includes costs of devices and accessories sold to customers and dealers, device 

costs to fulfill insurance and warranty claims, costs related to returned and purchased leased devices, write-downs of 
inventory related to shrinkage and obsolescence, and shipping and handling costs.

• 

Selling, general and administrative primarily includes costs not directly attributable to providing wireless service for 
the operation of sales, customer care and corporate activities. These include commissions paid to dealers and retail 
employees for activations and upgrades, labor and facilities costs associated with retail sales force and administrative 
space, marketing and promotional costs, customer support and billing, bad debt expense, losses from sales of 
receivables and back office administrative support activities.

Operating expenses increased $2.3 billion, or 6%, primarily from higher Selling, general and administrative expenses, 
Depreciation and amortization expense, Cost of equipment sales, Cost of services, and lower Gains on disposal of spectrum 
licenses as discussed below.

Cost of services increased $207 million, or 3%, primarily from:

•  Higher lease, employee-related and repair and maintenance expenses associated with network expansion; and

•  The impact from the new revenue standard of $74 million primarily related to certain contract fulfillment costs 

reclassified to Cost of services from Selling, general and administrative expenses; partially offset by

•  Lower regulatory program costs; and

•  The positive impact from insurance reimbursements related to hurricanes, net of costs, of $76 million in the year 
ended December 31, 2018, compared to costs incurred related to hurricanes, net of insurance recoveries, of $105 
million for the year ended December 31, 2017.

Cost of equipment sales increased $439 million, or 4%, primarily from:

•  An increase of $947 million in device cost of equipment sales, excluding purchased leased devices, primarily due to: 

•  A higher average cost per device sold, primarily due to an increase in the high-end device mix; partially offset 

by 

•  A 6% decrease in the number of devices sold, excluding purchased lease devices. This increase was partially 

offset by 

•  A decrease of $342 million in leased device cost of equipment sales, primarily from lower volumes of purchased 

leased devices at the end of the lease term; and 

•  A decrease of $178 million primarily due to lower inventory adjustments and lower warranty program costs.

Under our JUMP! On Demand program, upon device upgrade or at the end of the lease term, customers must return or purchase 
their device. The cost of purchased leased devices is recorded as Cost of equipment sales. Returned devices transferred from 
Property and equipment, net are recorded as inventory and are valued at the lower of cost or market with any write-down to 
market recognized as Cost of equipment sales.

36

Selling, general and administrative expenses increased $902 million, or 7%, primarily from:

•  Higher employee-related costs and costs related to managed services; 

•  Higher commissions driven by compensation structure and channel mix changes; and

•  Costs associated with the Transactions of $196 million; partially offset by

•  The positive impact from the new revenue standard of $96 million, primarily due to:

•  Capitalized commission costs in excess of the related amortization of $495 million; and

•  Certain contract fulfillment costs reclassified to Cost of services from Selling, general and administrative 

expenses partially offset by

•  Commission costs of $438 million previously recorded as a reduction in Equipment revenues now recognized 

in Selling, general and administrative expense; 

•  Lower bad debt expense and losses from sales of receivables reflecting our ongoing focus on managing customer 

quality;

•  Lower promotional and advertising costs;

•  Lower handset repair services costs due to lower demand for repaired phones for the fulfillment of warranty and 

insurance claims following the introduction of the AppleCare+ Program in the third quarter of 2017; and

•  The positive impact from insurance reimbursements related to hurricanes, net of costs, of $12 million in the year 
ended December 31, 2018, compared to costs incurred related to hurricanes of $36 million for the year ended 
December 31, 2017.  

Depreciation and amortization increased $502 million, or 8%, primarily from:

•  The continued build-out of our 4G LTE network and deployment of low band spectrum and 5G compatible radios; and

•  The implementation of the first component of our new billing system; partially offset by

•  Lower depreciation expense related to our JUMP! On Demand program resulting from an increase in the affordable 

device mix. Under our JUMP! On Demand program, the cost of a leased wireless device is depreciated to its estimated 
residual value over the period expected to provide utility to us.

Gains on disposal of spectrum licenses were $0 for the year ended December 31, 2018, as compared to $235 million for the 
year ended December 31, 2017, due to gains from spectrum license transactions with AT&T and Verizon in 2017. 

Operating income, the components of which are discussed above, increased $421 million, or 9%, for the year ended December 
31, 2018 and included:

•  The net positive impacts from the new revenue standard of $398 million; and

•  The positive impact from insurance reimbursements related to hurricanes, net of costs, of $158 million, compared to a 

negative impact of $201 million in the same period in 2017; partially offset by 

•  Gains on disposal of spectrum licenses of $235 million in 2017. There were no gains on disposal of spectrum licenses 

in 2018; and

•  Costs associated with the Transactions of $196 million. 

Interest expense decreased $276 million, or 25%, primarily from:

•  Redemption in April 2017 of aggregate principal amount of $6.8 billion of Senior Notes, with various interest rates 

and maturity dates; 

•  Redemption in January 2018 of $1.0 billion of 6.125% Senior Notes due 2022;

•  Redemption in April 2018 of aggregate principal amount of $2.4 billion of Senior Notes due 2023, with various 

interest rates and maturity dates; and

• 

Increase in capitalized interest costs of $100 million primarily due to the build out of our network to utilize our 600 
MHz spectrum licenses in the year ended December 31, 2018, compared to the year ended December 31, 2017; 

37

partially offset by

• 

• 

• 

Issuance in March 2017 of aggregate principal amount of $1.5 billion of Senior Notes, with various interest rates and 
maturity dates;

Issuance in January 2018 of $1.0 billion of public 4.500% Senior Notes due 2026; and

Issuance in January 2018 of $1.5 billion of public 4.750% Senior Notes due 2028.

See Note 8 – Debt of the Notes to the Consolidated Financial Statements for further information. 

Interest expense to affiliates decreased $38 million, or 7%, primarily from:

•  A decrease from lower interest rates achieved through refinancing in April 2017 of a total of $2.5 billion of Senior 

Reset Notes; 

•  A decrease from lower interest rates achieved through refinancing in April 2018 of a total of $2.5 billion of Senior 

Reset Notes; and

• 

• 

• 

• 

• 

Increase in capitalized interest costs of $126 million primarily due to build out of our network to utilize our 600 MHz 
spectrum licenses in the year ended December 31, 2018, compared to the year ended December 31, 2017; partially 
offset by
Issuance in January 2017 of $4.0 billion of Incremental Secured Term Loan facility, which refinanced $1.98 billion of 
outstanding senior secured term loans;

Issuance in May 2017 of aggregate principal amount of $4.0 billion of Senior Notes, with various interest rates and 
maturity dates; 

Issuance in April 2017 of aggregate principal amount of $3.0 billion of Senior Notes, with various interest rates and 
maturity dates; and 

Issuance in September 2017 of aggregate principal amount of $500 million of 5.375% Senior Notes due 2027.

See Note 8 – Debt of the Notes to the Consolidated Financial Statements for further information.

Other income (expense), net decreased $19 million, or 26%, primarily from:

•  A $30 million gain on sale of certain investments;

•  A $25 million bargain purchase gain as part of our purchase price allocation of the IWS acquisition; and

•  A $15 million gain on our previously held equity interest in IWS; partially offset by 

•  A $36 million increase in losses on early redemption of debt, including:

•  An $86 million loss on early redemption of $2.5 billion in DT Senior Reset Notes in April 2018; and 
•  A $32 million loss on early redemption of $1.0 billion of 6.125% Senior Notes due 2022 in January 2018; 

partially offset by

•  A $73 million net loss on early redemption of aggregate principal amount of $8.25 billion in Senior Notes, 

with various interest rates and maturity dates, during the year ended December 31, 2017; and

•  A $13 million loss on refinancing of $1.98 billion of outstanding senior secured term loans in January 2017.

Income tax expense increased $2.4 billion, or 175%, primarily from:

•  The impact of the TCJA, which resulted in a net tax benefit of $2.2 billion in 2017, substantially due to a re-

measurement of deferred tax assets and liabilities; and 

•  Higher income before taxes in 2018.

See Note 13 – Income Taxes of the Notes to the Consolidated Financial Statements for further information.

Net income, the components of which are discussed above, decreased $1.6 billion, or 36%, and included:

38

 
•  The impact of the TCJA as discussed above;

•  Costs associated with the Transactions of $180 million; and

•  Gains on disposal of spectrum licenses of $174 million in 2017. There were no gains on disposal of spectrum licenses 

in 2018; partially offset by

•  The net positive impact from the new revenue standard of $295 million; and

• 

Insurance reimbursements related to the hurricanes, net of costs, of $99 million, compared to costs of $130 million in 
the same period in 2017.  

Guarantor Subsidiaries

The financial condition and results of operations of the Parent, Issuer and Guarantor Subsidiaries is substantially similar to our 
consolidated financial condition. The most significant components of the financial condition of our Non-Guarantor Subsidiaries 
were as follows:

(in millions)

Other current assets

Property and equipment, net

Goodwill

Tower obligations

Total stockholders' deficit

NM - Not Meaningful

December 31,
2018

December 31,
2017

Change

$

%

$

$

645

297

218

2,173

(1,142)

$

628

306

—

2,198

(1,454)

17

(9)

218

(25)

312

3 %

(3)%

NM

(1)%

(21)%

The most significant components of the results of operations of our Non-Guarantor Subsidiaries were as follows:

(in millions)

Service revenues

Cost of equipment sales

Selling, general and administrative

Total comprehensive income

Year Ended December 31,

Change

2018

2017

$

%

$

2,339

$

2,113

$

1,011

985

193

1,003

856

28

226

8

129

165

11%

1%

15%

589%

The change to the results of operations of our Non-Guarantor Subsidiaries for the year ended December 31, 2018 was primarily 
from:

•  Higher Service revenues primarily due to an increase in activity of the non-guarantor subsidiary that provides device 
insurance, primarily driven by growth in our customer base and higher average revenue related to the new device 
protection product launched at the end of August 2018; partially offset by

•  Higher Selling, general and administrative expenses primarily due to operating costs from the non-guarantor Layer3 
TV subsidiary acquired in the first quarter of 2018, an increase in customer notification expenses related to the new 
insurance product launched at the end of August 2018, and an increase in program expenses related to Apple Care 
Service Fees, partially offset by lower valuation losses in the non-guarantor subsidiary involved in the EIP sale 
arrangement; and

•  Higher Cost of equipment sales primarily due to an increase in higher cost devices used for device insurance claims 
fulfillment, partially offset by an increase in device liquidations and a decrease in device non-return fees charged to 
customers.

All other results of operations of the Parent, Issuer and Guarantor Subsidiaries are substantially similar to the Company’s 
consolidated results of operations. See Note 17 – Guarantor Financial Information of the Notes to the Consolidated Financial 
Statements.

39

Performance Measures

In managing our business and assessing financial performance, we supplement the information provided by our financial 
statements with other operating or statistical data and non-GAAP financial measures. These operating and financial measures 
are utilized by our management to evaluate our operating performance and, in certain cases, our ability to meet liquidity 
requirements. Although companies in the wireless industry may not define each of these measures in precisely the same way, 
we believe that these measures facilitate comparisons with other companies in the wireless industry on key operating and 
financial measures.

Total Customers

A customer is generally defined as a SIM number with a unique T-Mobile identifier which is associated with an account that 
generates revenue. Branded customers generally include customers that are qualified either for postpaid service utilizing 
phones, DIGITS or connected devices which includes tablets, wearables and SyncUp DRIVE, where they generally pay after 
receiving service, or prepaid service, where they generally pay in advance. Wholesale customers include M2M and MVNO 
customers that operate on our network but are managed by wholesale partners.

The following table sets forth the number of ending customers:

(in thousands)

Customers, end of period
Branded postpaid phone customers (1)(2)
Branded postpaid other customers (2)

Total branded postpaid customers

Branded prepaid customers (1)

Total branded customers

Wholesale customers (3)

Total customers, end of period

Adjustments to branded postpaid phone 
customers (4)
Adjustments to branded prepaid customers (4)
Adjustments to wholesale customers (4)

December
31,
2018

December
31,
2017

December
31,
2016

2018 Versus 2017

2017 Versus 2016

# Change

% Change

# Change

% Change

37,224

5,295

42,519

21,137

63,656

15,995

79,651

—

—

—

34,114

3,933

38,047

20,668

58,715

13,870

72,585

—

—

—

31,297

3,130

34,427

19,813

54,240

17,215

71,455

(1,365)

(326)

1,691

3,110

1,362

4,472

469

4,941

2,125

7,066

—

—

—

9%

35%

12%

2%

8%

15%

10%

—

—

—

2,817

803

3,620

855

4,475

(3,345)

1,130

1,365

326

(1,691)

9 %

26 %

11 %

4 %

8 %

(19)%

2 %

(100)%

(100)%

(100)%

(1)  As a result of the acquisition of IWS, we included an adjustment of 13,000 branded postpaid phone and 4,000 branded prepaid IWS customers in our 
reported subscriber base as of January 1, 2018. Additionally, as a result of the acquisition of Layer3 TV, we included an adjustment of 5,000 branded 
prepaid customers in our reported subscriber base as of January 22, 2018. 

(2)  During 2017, we retitled our “Branded postpaid mobile broadband customers” category to “Branded postpaid other customers” and reclassified 253,000 
DIGITS customers from our “Branded postpaid phone customers” category for the second quarter of 2017, when the DIGITS product was released.

(3)  We believe current and future regulatory changes have made the Lifeline program offered by our wholesale partners uneconomical. We will continue to 
support our wholesale partners offering the Lifeline program, but have excluded the Lifeline customers from our reported wholesale subscriber base 
resulting in the removal of 4,528,000 reported wholesale customers in 2017.

(4)  As a result of the MVNO transaction, we included an adjustment of 1,365,000 branded postpaid phone customers and 326,000 branded prepaid customers 
to wholesale customers on September 1, 2016. Prospectively from September 1, 2016, net customer additions for these customers are included within 
wholesale customers.

Branded Customers 

Total branded customers increased 4,941,000, or 8%, in 2018 primarily from:

•  Higher branded postpaid phone customers driven by the growing success of new customer segments and rate plans 
such as T-Mobile ONE Unlimited 55+, T-Mobile ONE Military, T-Mobile for Business and T-Mobile Essentials and 
continued growth in existing and Greenfield markets, along with lower churn, partially offset by competitive activity;

•  Higher branded postpaid other customers primarily due to higher gross customer additions from wearables; and

•  Higher branded prepaid customers driven by the continued success of our Metro by T-Mobile brand due to 

promotional activities and rate plan offers. 

40

Wholesale

Wholesale customers increased 2,125,000, or 15%, in 2018 primarily due to the continued success of our M2M and MVNO 
partnerships. 

Net Customer Additions

The following table sets forth the number of net customer additions:

(in thousands)

2018

2017

2016

# Change

% Change

# Change

% Change

Year Ended December 31,

2018 Versus 2017

2017 Versus 2016

Net customer additions
Branded postpaid phone customers (1) (2)
Branded postpaid other customers (2)

Total branded postpaid customers

Branded prepaid customers (1)

Total branded customers

Wholesale customers (3)

Total net customer additions

3,097

1,362

4,459

460

4,919

2,125

7,044

2,817

803

3,620

855

4,475

1,183

5,658

3,307

790

4,097

2,508

6,605

1,568

8,173

280

559

839

(395)

444

942

1,386

10 %

70 %

23 %

(46)%

10 %

80 %

24 %

(490)

13

(477)

(1,653)

(2,130)

(385)

(2,515)

(15)%

2 %

(12)%

(66)%

(32)%

(25)%

(31)%

(1)  As a result of the acquisition of IWS and Layer3 TV, customer activity post acquisition was included in our net customer additions beginning in the first 

quarter of 2018. 

(2)  During 2017, we retitled our “Branded postpaid mobile broadband customers” category to “Branded postpaid other customers” and included DIGITS 
customers and reclassified 253,000 DIGITS customer net additions from our “Branded postpaid phone customers” category for the second quarter of 
2017, when the DIGITS product was released.

(3)  Net customer activity for Lifeline was excluded beginning in the second quarter of 2017, due to our determination based upon changes in the applicable 

government regulations that the Lifeline program offered by our wholesale partners is uneconomical.

Branded Customers

Total branded net customer additions increased 444,000, or 10%, in 2018 primarily from:

•  Higher branded postpaid other net customer additions primarily due to higher gross customer additions from wearables 

and lower churn, partially offset by lower gross customer additions from other connected devices; and

•  Higher branded postpaid phone net customer additions primarily due to lower churn and continued growth in existing 
and Greenfield markets including the growing success of new customer segments and rate plans such as T-Mobile 
ONE Unlimited 55+, T-Mobile ONE Military, T-Mobile for Business and T-Mobile Essentials, partially offset by the 
impact from more aggressive service promotions and the launch of Un-carrier Next - All Unlimited with taxes and fees 
in the first quarter of 2017. These increases were partially offset by

•  Lower branded prepaid net customer additions primarily due to increased competitive activity, partially offset by lower 

migrations to branded postpaid plans.

Wholesale

Wholesale net customer additions increased 942,000, or 80%, in 2018 primarily due to lower deactivations driven by the 
removal of Lifeline program customers. 

Customers Per Account

Customers per account is calculated by dividing the number of branded postpaid customers as of the end of the period by the 
number of branded postpaid accounts as of the end of the period. An account may include branded postpaid phone customers 
and branded postpaid other customers which includes DIGITS and connected devices such as tablets, wearables and SyncUp 
DRIVE. We believe branded postpaid customers per account provides management, investors and analysts with useful 
information to evaluate our branded postpaid customer base on a per account basis.

41

The following table sets forth the branded postpaid customers per account:

Branded postpaid customers per account

3.03

2.93

2.86

0.10

3%

0.07

2%

December
31,
2018

December
31,
2017

December
31,
2016

2018 Versus 2017

2017 Versus 2016

# Change % Change

# Change % Change

Branded postpaid customers per account increased 3% in 2018 primarily from continued growth of new customer segments and 
rate plans such as T-Mobile ONE Unlimited 55+, T-Mobile ONE Military, T-Mobile for Business and T-Mobile Essentials, 
promotional activities targeting families and the success of connected devices.

Churn

Churn represents the number of customers whose service was disconnected as a percentage of the average number of customers 
during the specified period. The number of customers whose service was disconnected is presented net of customers that 
subsequently have their service restored within a certain period of time. We believe that churn provides management, investors 
and analysts with useful information to evaluate customer retention and loyalty.

The following table sets forth the churn: 

Branded postpaid phone churn

Branded prepaid churn

Year Ended December 31,

2018

2017

2016

Bps Change
2018 Versus
2017

Bps Change
2017 Versus
2016

1.01%

3.96%

1.18%

4.04%

1.30%

3.88%

-17 bps

-8 bps

-12 bps

16 bps

Branded postpaid phone churn decreased 17 basis points in 2018, primarily from increased customer satisfaction and loyalty 
from ongoing improvements to network quality, industry-leading customer service and the overall value of our offerings. 

Branded prepaid churn decreased 8 basis points in 2018, primarily due to the continued impact from the optimization of our 
third-party distribution channels which was substantially completed during the first quarter of 2017, partially offset by higher 
deactivations from a growing customer base and increased competitive activity.

Average Revenue Per User, Average Billings Per User

Average Revenue Per User (“ARPU”) represents the average monthly service revenue earned from customers. We believe 
ARPU provides management, investors and analysts with useful information to assess and evaluate our service revenue 
realization per customer and assist in forecasting our future service revenues generated from our customer base. Branded 
postpaid phone ARPU excludes Branded postpaid other customers and related revenues which includes DIGITS and connected 
devices such as tablets, wearables and SyncUp DRIVE.

Average Billings Per User (“ABPU”) represents the average monthly customer billings, including monthly lease revenues and 
EIP billings before securitization, per customer. We believe Branded Postpaid ABPU was an important metric during the 
transition from classic plans to EIP based plans as it helped explain the customer billing relationship in a period which had 
shifts in customer billings from branded postpaid service revenues to equipment sales revenues. We believe the usefulness of 
ABPU to management, investors and analysts has decreased in recent periods as the remaining classic plan base is immaterial 
and Branded postpaid service revenue and Branded postpaid phone ARPU metrics in periods presented are now 
comparable. We therefore plan to discontinue reporting ABPU beginning with the quarter ending March 31, 2019.

42

The following tables illustrate the calculation of our operating measures ARPU and ABPU and reconcile these measures to the 
related service revenues:

(in millions, except average number of
customers, ARPU and ABPU)

Calculation of Branded Postpaid Phone
ARPU

Year Ended December 31,

2018 Versus 2017

2017 Versus 2016

2018

2017

2016

$ Change

% Change

$ Change

% Change

Branded postpaid service revenues

$

20,862

Less: Branded postpaid other revenues

(1,117)

Branded postpaid phone service revenues $

19,745

Divided by: Average number of branded
postpaid phone customers (in thousands) and
number of months in period

Branded postpaid phone ARPU

Calculation of Branded Postpaid ABPU

Branded postpaid service revenues

$

$

EIP billings

Lease revenues

Total billings for branded postpaid
customers

Divided by: Average number of branded
postpaid customers (in thousands) and
number of months in period

Branded postpaid ABPU

Calculation of Branded Prepaid ARPU

Branded prepaid service revenues

Divided by: Average number of branded
prepaid customers (in thousands) and number
of months in period

Branded prepaid ARPU

Branded Postpaid Phone ARPU

$

$

$

$

$

$

$

$

$

$

$

19,448

(1,077)

18,371

32,596

46.97

19,448

5,866

877

$

$

$

$

18,138

(773)

17,365

30,484

47.47

18,138

5,432

1,416

1,414

(40)

1,374

2,862

(0.57)

1,414

682

(185)

7 % $

4 %

7 % $

1,310

(304)

1,006

9 %

(1)% $

2,112

(0.50)

7 % $

1,310

12 %

(21)%

434

(539)

35,458

46.40

20,862

6,548

692

$

28,102

$

26,191

$

24,986

$

1,911

7 % $

1,205

40,075

58.44

9,598

$

$

36,079

60.49

9,380

$

$

33,184

62.75

8,553

$

$

3,996

(2.05)

11 %

(3)% $

2,895

(2.26)

218

2 % $

827

10 %

20,761

20,204

18,797

38.53

$

38.69

$

37.92

$

557

(0.16)

3 %

— % $

1,407

0.77

7 %

2 %

7 %

39 %

6 %

7 %

(1)%

7 %

8 %

(38)%

5 %

9 %

(4)%

Branded postpaid phone ARPU decreased $0.57, or 1%, in 2018 primarily due to:

•  The growing success of new customer segments and rate plans such as T-Mobile ONE Unlimited 55+, T-Mobile ONE 

Military, T-Mobile for Business and T-Mobile Essentials; 

•  The ongoing growth in our Netflix offering, which totaled $0.35 for 2018 and decreased branded postpaid phone 

ARPU by $0.32 compared to full-year 2017; 

•  A reduction in certain non-recurring charges; 

•  The negative impact of the new revenue standard of $0.05; partially offset by 

•  A net reduction in promotional activities.

We continue to expect that Branded postpaid phone ARPU in full-year 2019 will be generally stable compared to full-year 
2018.

Branded Postpaid ABPU

Branded postpaid ABPU decreased $2.05, or 3%, in 2018 primarily from:

•  Lower branded postpaid phone ARPU;

•  Lower lease revenues; and

•  Growth in the branded postpaid other customer base with a lower ARPU than branded postpaid phone.

43

Branded Prepaid ARPU

Branded prepaid ARPU decreased $0.16 in 2018 primarily from dilution from promotional rate plans, partially offset by the 
continued growth of Metro by T-Mobile customers.

Adjusted EBITDA

Adjusted EBITDA represents earnings before Interest expense, net of Interest income, Income tax expense, Depreciation and 
amortization, non-cash Stock-based compensation and certain income and expenses not reflective of our operating 
performance. Net income margin represents Net income divided by Service revenues. Adjusted EBITDA margin represents 
Adjusted EBITDA divided by Service revenues.

Adjusted EBITDA is a non-GAAP financial measure utilized by our management to monitor the financial performance of our 
operations. We use Adjusted EBITDA internally as a measure to evaluate and compensate our personnel and management for 
their performance, and as a benchmark to evaluate our operating performance in comparison to our competitors. Management 
believes analysts and investors use Adjusted EBITDA as a supplemental measure to evaluate overall operating performance and 
facilitate comparisons with other wireless communications companies because it is indicative of our ongoing operating 
performance and trends by excluding the impact of interest expense from financing, non-cash depreciation and amortization 
from capital investments, non-cash stock-based compensation, network decommissioning costs and costs related to the 
Transactions, as they are not indicative of our ongoing operating performance, as well as certain other nonrecurring income and 
expenses. Adjusted EBITDA has limitations as an analytical tool and should not be considered in isolation or as a substitute for 
income from operations, net income or any other measure of financial performance reported in accordance with U.S. Generally 
Accepted Accounting Principles (“GAAP”).

The following table illustrates the calculation of Adjusted EBITDA and reconciles Adjusted EBITDA to Net income, which we 
consider to be the most directly comparable GAAP financial measure:

(in millions)

Net income

Adjustments:

Interest expense

Interest expense to affiliates

Interest income

Other (income) expense, net

Income tax expense (benefit)

Operating income

Depreciation and amortization

Cost of MetroPCS business combination
Stock-based compensation (1)

Cost associated with the Transactions
Other, net (2)

Year Ended December 31,

2018 Versus 2017

2017 Versus 2016

2018

2017

2016

$ Change % Change

$ Change % Change

$

2,888

$

4,536

$

1,460

$

(1,648)

(36)% $

3,076

211 %

835

522

(19)

54

1,029

5,309

6,486

—

389

196

18

1,111

1,418

560

(17)

73

(1,375)

4,888

5,984

—

307

—

34

312

(13)

6

867

4,050

6,243

104

235

—

7

(276)

(38)

(2)

(19)

2,404

421

502

—

82

196

(16)

(25)%

(7)%

12 %

(26)%

(175)%

9 %

8 %

NM

27 %

NM

(47)%

(307)

248

(4)

67

(2,242)

838

(259)

(104)

72

—

27

Adjusted EBITDA

$

12,398

$

11,213

$ 10,639

$

1,185

11 % $

574

Net income margin (Net income divided by
service revenues)

Adjusted EBITDA margin (Adjusted EBITDA
divided by service revenues)

9%

39%

15%

37%

5%

38%

-600 bps

200 bps

(1)  Stock-based compensation includes payroll tax impacts and may not agree to stock-based compensation expense in the Consolidated Financial Statements.

(2)  Other, net may not agree to the Consolidated Statements of Comprehensive Income primarily due to certain non-routine operating activities, such as other 
special items that would not be expected to reoccur or are not reflective of T-Mobile’s ongoing operating performance, and are therefore excluded in 
Adjusted EBITDA. 

Adjusted EBITDA increased $1.2 billion, or 11%, in 2018 primarily from:

•  Higher service revenues, as further discussed above; 

44

(22)%

79 %

31 %

1,117 %

(259)%

21 %

(4)%

(100)%

31 %

NM

386 %

5 %

1000 bps

-100 bps

•  The positive impact from the new revenue standard of $398 million; 

•  Higher other revenues, as further discussed above;

•  Lower losses on equipment;

•  The positive impact of the reimbursements from our insurance carriers, net of costs incurred related to hurricanes, for 
the year ended December 31, 2018 of $158 million, compared to costs incurred related to hurricanes, net of insurance 
recoveries, of $201 million in the year ended December 31, 2017; partially offset by

•  Higher selling, general and administrative expenses;

•  Lower gains on disposal of spectrum licenses of $235 million; and

•  Higher cost of services.

Liquidity and Capital Resources

Our principal sources of liquidity are our cash and cash equivalents and cash generated from operations, proceeds from 
issuance of long-term debt and common stock, capital leases, the sale of certain receivables, financing arrangements of vendor 
payables which effectively extend payment terms and secured and unsecured revolving credit facilities with DT. Upon 
consummation of the Transactions, we will incur substantial third-party indebtedness which will increase our future financial 
commitments, including aggregate interest payments on higher total indebtedness, and may adversely impact our liquidity. 
Further, the incurrence of additional indebtedness may inhibit our ability to incur new debt under the terms governing our 
existing and future indebtedness, which may make it more difficult for us to incur new debt in the future to finance our business 
strategy.

Cash Flows

On January 1, 2018, we adopted the new cash flow standard which impacted the presentation of our cash flows related to our 
beneficial interests in securitization transactions, which is the deferred purchase price, resulting in a reclassification of cash 
inflows from Operating activities to Investing activities of approximately $5.4 billion, $4.3 billion and $3.4 billion for the years 
ended December 31, 2018, 2017 and 2016, respectively, in our Consolidated Statements of Cash Flows. The new cash flow 
standard also impacted the presentation of our cash payments for debt prepayment and debt extinguishment costs, resulting in a 
reclassification of cash outflows from Operating activities to Financing activities of $212 million and $188 million for the years 
ended December 31, 2018 and 2017, respectively, in our Consolidated Statements of Cash Flows. There were no cash payments 
for debt prepayment and debt extinguishment costs during the year ended December 31, 2016. We have applied the new cash 
flow standard retrospectively to all periods presented.

For additional information regarding the new cash flow standard and the impact of our adoption, see “Selected Financial Data” 
and Note 1 – Summary of Significant Accounting Policies of the Notes to the Consolidated Financial Statements.

The following is a condensed schedule of our cash flows for the years ended December 31, 2018, 2017 and 2016:

Year Ended December 31,

2018 Versus 2017

2017 Versus 2016

(in millions)

2018

2017

2016

$ Change % Change

$ Change

% Change

Net cash provided by operating activities

$

3,899

$

3,831

$

2,779

$

68

2 % $

1,052

Net cash used in investing activities

Net cash (used in) provided by financing activities

(579)

(3,336)

(6,745)

(1,367)

(2,324)

463

6,166

(1,969)

(91)%

144 %

(4,421)

(1,830)

38 %

190 %

(395)%

Operating Activities

Net cash provided by operating activities increased $68 million, or 2%, primarily from higher net non-cash adjustments to Net 
income, partially offset by lower Net income and higher net cash outflows from working capital changes.

•  The change in Net income and the net non-cash adjustments to Net income were primarily from the impacts of the 

TCJA in 2017 and the absence of Gains on disposal of spectrum licenses in 2018.

•  The higher net use in working capital was primarily from a paydown of Accounts payable and changes in Accounts 

receivable, partially offset by changes in Inventories and EIP receivables.

45

Investing Activities

Net cash used in investing activities decreased $6.2 billion, or 91%, to a use of $579 million for 2018.

The use of cash for the year ended December 31, 2018 was primarily from:

• 

• 

• 

$5.5 billion in Purchases of property and equipment, including capitalized interest, primarily driven by growth in 
network build as we continued deployment of low band spectrum, including the continued deployment of 600 MHz, 
and started laying the groundwork for 5G; and 

$338 million of cash consideration paid, net of cash acquired, for the acquisitions of Layer3 TV and IWS; partially 
offset by 

$5.4 billion in Proceeds related to beneficial interest in securitization transactions.

Financing Activities

Net cash (used in) provided by financing activities increased $2.0 billion, or 144%, to a use of $3.3 billion for 2018.

The use of cash for the year ended December 31, 2018 was primarily from:

• 

• 

• 

• 

• 

• 

$6.3 billion for Repayments of our revolving credit facility;

$3.3 billion for Repayments of long-term debt;

$1.1 billion for Repurchases of common stock; and

$700 million for Repayments of capital lease obligations; partially offset by

$6.3 billion in Proceeds from borrowing on our revolving credit facility; and

$2.5 billion in Proceeds from issuance of long-term debt.

Cash and Cash Equivalents

As of December 31, 2018, our Cash and cash equivalents were $1.2 billion.

Free Cash Flow

Free Cash Flow represents Net cash provided by operating activities less payments for Purchases of property and equipment, 
including Proceeds related to beneficial interests in securitization transactions and less Cash payments for debt prepayment or 
debt extinguishment costs. Free Cash Flow is a non-GAAP financial measure utilized by our management, investors and 
analysts of our financial information to evaluate cash available to pay debt and provide further investment in the business.

In the first quarter of 2018, we redefined our non-GAAP financial measure Free Cash Flow to reflect the adoption of the new 
cash flow standard to present cash flows on a consistent basis for investor transparency. We have applied the change in 
definition retrospectively in the table below, which illustrates the calculation of Free Cash Flow and reconciles Free Cash Flow 
to Net cash provided by operating activities, which we consider to be the most directly comparable GAAP financial measure:

(in millions)

2018

2017

2016

$ Change % Change

$ Change % Change

Year Ended December 31,

2018 Versus 2017

2017 Versus 2016

Net cash provided by operating activities

$

3,899

$

3,831

$

2,779

$

Cash purchases of property and equipment

(5,541)

(5,237)

(4,702)

68

(304)

2% $

1,052

6%

25%

13%

(535)

963

(188)

30% $

1,292

38%

11%

29%

NM

90%

Proceeds related to beneficial interests in
securitization transactions

Cash payments for debt prepayment or debt
extinguishment costs

5,406

4,319

3,356

1,087

(212)

(188)

—

(24)

827

Free Cash Flow

$

3,552

$

2,725

$

1,433

$

46

Free Cash Flow increased $827 million, or 30%, for 2018 from:

•  Higher proceeds related to our deferred purchase price from securitization transactions and net cash provided by 

operating activities; partially offset by

•  Higher Purchases of property and equipment, net of capitalized interest of $362 million and $136 million for the years 
ended December 31, 2018 and 2017, respectively. The increase in cash purchases of property and equipment was 
primarily due to growth in network build as we continued deployment of low band spectrum, including the continued 
deployment of 600 MHz, and started laying the groundwork for 5G.

Borrowing Capacity and Debt Financing

As of December 31, 2018, our total debt was $27.5 billion, excluding our tower obligations, of which $26.7 billion was 
classified as long-term debt. See Note 8 – Debt of the Notes to the Consolidated Financial Statements for a detailed discussion 
of our debt to third parties and debt to affiliates.

In December 2016, T-Mobile USA entered into a $2.5 billion revolving credit facility with DT which is comprised of (i) a 
three-year $1.0 billion unsecured revolving credit agreement and (ii) a three-year $1.5 billion secured revolving credit 
agreement. In January 2018, we utilized proceeds under the revolving credit facility to redeem $1.0 billion in aggregate 
principal amount of our 6.125% Senior Notes due 2022 and for general corporate purposes. On January 29, 2018, the proceeds 
utilized under our revolving credit facility with DT were repaid. As of December 31, 2018 and 2017, there were no outstanding 
borrowings under the revolving credit facility. In November 2018, we amended the terms of the revolving credit facility with 
DT to extend the maturity date to December 29, 2021.

We maintain a handset financing arrangement with Deutsche Bank AG (“Deutsche Bank”), which allows for up to $108 million 
in borrowings. Under the handset financing arrangement, we can effectively extend payment terms for invoices payable to 
certain handset vendors. As of December 31, 2018 and 2017, there was no outstanding balance.

We maintain vendor financing arrangements with our primary network equipment suppliers. Under the respective agreements, 
we can obtain extended financing terms. As of December 31, 2018 and 2017, there was no outstanding balance.

Consents on Debt to Third Parties

On May 18, 2018, under the terms and conditions described in the Consent Solicitation Statement, we obtained consents 
necessary to effect certain amendments to our Senior Notes to third parties in connection with the Business Combination 
Agreement. Pursuant to the Consent Solicitation Statement, third-party note holders agreed, among other things, to consent to 
increasing the amount of Secured Indebtedness under Credit Facilities that can be incurred from the greater of $9 billion and 
150% of Consolidated Cash Flow to the greater of $9 billion and an amount that would not cause the Secured Debt to Cash 
Flow Ratio (calculated net of cash and cash equivalents) to exceed 2.00x (the “Ratio Secured Debt Proposed Amendments”) 
and in each case as such capitalized term is defined in the Indenture. In connection with receiving the requisite consents for the 
Ratio Secured Debt Proposed Amendments, we made upfront payments to third-party note holders of $17 million during the 
second quarter of 2018. These payments were recognized as a reduction to Long-term debt in our Consolidated Balance Sheets. 
These upfront payments increased the effective interest rate of the related debt.

In addition, note holders agreed, among other things, to allow certain entities related to Sprint’s existing spectrum securitization 
notes program (“Existing Sprint Spectrum Program”) to be non-guarantor Restricted Subsidiaries, provided that the principal 
amount of the spectrum notes issued and outstanding under the Existing Sprint Spectrum Program does not exceed $7.0 billion 
and that the principal amount of such spectrum notes reduces the amount available under the Credit Facilities ratio basket, and 
to revise the definition of GAAP to mean generally accepted accounting principles in effect from time to time, unless the 
Company elects to “freeze” GAAP as of any date, and to exclude the effect of the changes in the accounting treatment of lease 
obligations (the “Existing Sprint Spectrum and GAAP Proposed Amendments,” and together with the Ratio Secured Debt 
Proposed Amendments, the “Proposed Amendments”). In connection with receiving the requisite consents for the Existing 
Sprint Spectrum and GAAP Proposed Amendments, we made upfront payments to third-party note holders of $14 million 
during the second quarter of 2018. These payments were recognized as a reduction to Long-term debt in our Consolidated 
Balance Sheets. These upfront payments increased the effective interest rate of the related debt.

In connection with obtaining the requisite consents, on May 20, 2018, T-Mobile USA, the guarantors and Deutsche Bank Trust 
Company Americas, as trustee, executed and delivered the 37th supplemental indenture to the Indenture, pursuant to which, 
with respect to each of the Notes, the Proposed Amendments will become effective immediately prior to the consummation of 
the Merger.

47

We paid third-party bank fees associated with obtaining the requisite consents related to the Proposed Amendments of $6 
million during the second quarter of 2018, which we recognized as Selling, general and administrative expenses in our 
Consolidated Statements of Comprehensive Income. If the Merger is consummated, we will make additional payments to third-
party note holders for requisite consents related to the Ratio Secured Debt Proposed Amendments of up to $54 million and 
additional payments to third-party note holders for requisite consents related to the Existing Sprint Spectrum and GAAP 
Proposed Amendments of up to $41 million. We have not accrued these payments as of December 31, 2018. 

See Note 8 – Debt of the Notes to the Consolidated Financial Statements for further information.

Future Sources and Uses of Liquidity

We may seek additional sources of liquidity, including through the issuance of additional long-term debt in 2019, to continue to 
opportunistically acquire spectrum licenses or other assets in private party transactions or for the refinancing of existing long-
term debt on an opportunistic basis. Excluding liquidity that could be needed for spectrum acquisitions, or for other assets, we 
expect our principal sources of funding to be sufficient to meet our anticipated liquidity needs for business operations for the 
next 12 months as well as our longer-term liquidity needs. Our intended use of any such funds is for general corporate 
purposes, including for capital expenditures, spectrum purchases, opportunistic investments and acquisitions, redemption of 
high yield callable debt and stock purchases.

We determine future liquidity requirements, for both operations and capital expenditures, based in large part upon projected 
financial and operating performance, and opportunities to acquire additional spectrum. We regularly review and update these 
projections for changes in current and projected financial and operating results, general economic conditions, the competitive 
landscape and other factors. There are a number of risks and uncertainties that could cause our financial and operating results 
and capital requirements to differ materially from our projections, which could cause future liquidity to differ materially from 
our assessment.

The indentures and credit facilities governing our long-term debt to affiliates and third parties, excluding capital leases, contain 
covenants that, among other things, limit the ability of the Issuer and the Guarantor Subsidiaries to: incur more debt; pay 
dividends and make distributions on our common stock; make certain investments; repurchase stock; create liens or other 
encumbrances; enter into transactions with affiliates; enter into transactions that restrict dividends or distributions from 
subsidiaries; and merge, consolidate or sell, or otherwise dispose of, substantially all of their assets. Certain provisions of each 
of the credit facilities, indentures and supplemental indentures relating to the long-term debt to affiliates and third parties 
restrict the ability of the Issuer to loan funds or make payments to the Parent. However, the Issuer is allowed to make certain 
permitted payments to the Parent under the terms of each of the credit facilities, indentures and supplemental indentures 
relating to the long-term debt to affiliates and third parties. We were in compliance with all restrictive debt covenants as of 
December 31, 2018.

Capital Lease Facilities

We have entered into uncommitted capital lease facilities with certain partners, which provide us with the ability to enter into 
capital leases for network equipment and services. As of December 31, 2018, we have committed to $3.0 billion of capital 
leases under these capital lease facilities, of which $885 million was executed during the year ended December 31, 2018. 

Capital Expenditures

Our liquidity requirements have been driven primarily by capital expenditures for spectrum licenses and the construction, 
expansion and upgrading of our network infrastructure. Property and equipment capital expenditures primarily relate to our 
network transformation, including the build-out of 600 MHz low-band spectrum licenses. We expect cash purchases of property 
and equipment, excluding capitalized interest of approximately $400 million, to be $5.4 to $5.7 billion and cash purchases of 
property and equipment, including capitalized interest, to be to be $5.8 to $6.1 billion in 2019. This includes expenditures for 
600 MHz and 5G deployment. This does not include property and equipment obtained through capital lease agreements, leased 
wireless devices transferred from inventory or any additional purchases of spectrum licenses.

Share Repurchases

On December 6, 2017, our Board of Directors authorized a stock repurchase program for up to $1.5 billion of our common 
stock through December 31, 2018 (the “2017 Stock Repurchase Program”). Repurchased shares are retired. The 2017 Stock 
Repurchase Program completed on April 29, 2018.

48

On April 27, 2018, our Board of Directors authorized an increase in the total stock repurchase program to $9.0 billion, 
consisting of the $1.5 billion in repurchases previously completed and up to an additional $7.5 billion of repurchases of our 
common stock. The additional $7.5 billion repurchase authorization is contingent upon the termination of the Business 
Combination Agreement and the abandonment of the Transactions contemplated under the Business Combination Agreement. 
See Note 12 – Repurchases of Common Stock of the Notes to the Consolidated Financial Statements for further information.

Dividends

We have never paid or declared any cash dividends on our common stock, and we do not intend to declare or pay any cash 
dividends on our common stock in the foreseeable future. Our credit facilities and the indentures and supplemental indentures 
governing our long-term debt to affiliates and third parties, excluding capital leases, contain covenants that, among other 
things, restrict our ability to declare or pay dividends on our common stock. 

Contractual Obligations

The following table summarizes our contractual obligations and borrowings as of December 31, 2018 and the timing and effect 
that such commitments are expected to have on our liquidity and capital requirements in future periods:

(in millions)
Long-term debt (1)

Interest on long-term debt

Capital lease obligations, including interest and
maintenance
Tower obligations (2)
Operating leases (3)
Purchase obligations (4)
Network decommissioning (5)

Less Than 1 Year

1 - 3 Years

4 - 5 Years

More Than 5
Years

Total

$

— $

2,000

$

5,400

$

18,200

$

1,366

909

195

2,698

3,377

79

2,679

1,020

391

4,684

2,800

79

2,273

168

392

3,290

1,786

39

1,950

106

835

3,762

1,367

5

Total contractual obligations

$

8,624

$

13,653

$

13,348

$

26,225

$

25,600

8,268

2,203

1,813

14,434

9,330

202

61,850

(1)  Represents principal amounts of long-term debt to affiliates and third parties at maturity, excluding unamortized premium from purchase price allocation 
fair value adjustment, capital lease obligations and vendor financing arrangements. See Note 8 – Debt of the Notes to the Consolidated Financial 
Statements for further information.

(2)  Future minimum payments, including principal and interest payments and imputed lease rental income, related to the tower obligations. See Note 9 – 

Tower Obligations of the Notes to the Consolidated Financial Statements for further information.

(3)  Future minimum lease payments for all cell site leases presented above to include payments due for the initial non-cancelable lease term only as they 

represent the payments which we cannot avoid at our option and also corresponds to our lease term assessment for new leases.

(4)  The minimum commitment for certain obligations is based on termination penalties that could be paid to exit the contracts. Termination penalties are 

included in the above table as payments due as of the earliest we could exit the contract, typically in less than one year. For certain contracts that include 
fixed volume purchase commitments and fixed prices for various products, the purchase obligations are calculated using fixed volumes and contractually 
fixed prices for the products that are expected to be purchased. This table does not include open purchase orders as of December 31, 2018 under normal 
business purposes. See Note 15 – Commitments and Contingencies of the Notes to the Consolidated Financial Statements for further information.

(5)  Represents future undiscounted cash flows related to decommissioned MetroPCS CDMA network and certain other redundant cell sites as of 

December 31, 2018.

Certain commitments and obligations are included in the table based on the year of required payment or an estimate of the year 
of payment. Other long-term liabilities, excluding network decommissioning, have been omitted from the table above due to 
the uncertainty of the timing of payments, combined with the absence of historical trending to be used as a predictor of such 
payments. See Note 16 – Additional Financial Information of the Notes to the Consolidated Financial Statements for further 
information.

The purchase obligations reflected in the table above are primarily commitments to purchase handsets and accessories, 
equipment, software, programming and network services and marketing activities, which will be used or sold in the ordinary 
course of business. These amounts do not represent our entire anticipated purchases in the future, but represent only those items 
for which we are contractually committed. Where we are committed to make a minimum payment to the supplier regardless of 
whether we take delivery, we have included only that minimum payment as a purchase obligation. Additionally, included within 
purchase obligations are amounts for the acquisition of spectrum licenses, which are subject to regulatory approval and other 
customary closing conditions.

49

In October 2018, we entered into, and designated, interest rate lock derivatives as cash flow hedges to reduce variability in cash 
flows due to changes in interest payments attributable to increases or decreases in the benchmark interest rate during the period 
leading up to the probable issuance of fixed-rate debt. The fair value of interest rate lock derivatives as of December 31, 2018 
was $447 million and is included in Other current liabilities in our Consolidated Balance Sheets. Balances related to the cash 
flow hedges have been omitted from the table above due to the uncertainty of the amount and timing of settlements. See Note 7 
– Fair Value Measurements of the Notes to the Consolidated Financial Statements for further information.

Off-Balance Sheet Arrangements 

We have arrangements, as amended from time to time, to sell certain EIP accounts receivable and service accounts receivable 
on a revolving basis as a source of liquidity. As of December 31, 2018, we derecognized net receivables of $2.6 billion upon 
sale through these arrangements. See Note 4 – Sales of Certain Receivables of the Notes to the Consolidated Financial 
Statements for further information.

Related Party Transactions

During the year ended December 31, 2018, we entered into certain debt-related transactions with affiliates. See Note 8 – Debt 
of the Notes to the Consolidated Financial Statements for further information.

In the first quarter of 2018, DT, our majority stockholder and an affiliated purchaser, purchased 3.3 million additional shares of 
our common stock at an aggregate market value of $200 million in the public market or from other parties, in accordance with 
the rules of the SEC and other applicable legal requirements. There were no purchases in the remainder of 2018. We did not 
receive proceeds from these purchases. See Note 12 – Repurchases of Common Stock of the Notes to the Consolidated 
Financial Statements for further information.

We also have related party transactions associated with DT or its affiliates in the ordinary course of business, including 
intercompany servicing and licensing.

Disclosure of Iranian Activities under Section 13(r) of the Securities Exchange Act of 1934

Section 219 of the Iran Threat Reduction and Syria Human Rights Act of 2012 added Section 13(r) to the Exchange Act of 
1934, as amended (“Exchange Act”). Section 13(r) requires an issuer to disclose in its annual or quarterly reports, as applicable, 
whether it or any of its affiliates knowingly engaged in certain activities, transactions or dealings relating to Iran or with 
designated natural persons or entities involved in terrorism or the proliferation of weapons of mass destruction. Disclosure is 
required even where the activities, transactions or dealings are conducted outside the U.S. by non-U.S. affiliates in compliance 
with applicable law, and whether or not the activities are sanctionable under U.S. law.

As of the date of this report, we are not aware of any activity, transaction or dealing by us or any of our affiliates for the year 
ended December 31, 2018, that requires disclosure in this report under Section 13(r) of the Exchange Act, except as set forth 
below with respect to affiliates that we do not control and that are our affiliates solely due to their common control with DT. We 
have relied upon DT for information regarding their activities, transactions and dealings.

DT, through certain of its non-U.S. subsidiaries, is party to roaming and interconnect agreements with the following mobile and 
fixed line telecommunication providers in Iran, some of which are or may be government-controlled entities: Gostaresh 
Ertebatat Taliya, Irancell Telecommunications Services Company, Telecommunication Kish Company, Mobile 
Telecommunication Company of Iran, and Telecommunication Infrastructure Company of Iran. In addition, DT, through certain 
of its non-U.S. subsidiaries, provided basic telecommunications services in 2018 to Telecommunication Company of Iran and 
to three customers in Germany identified on the Specially Designated Nationals and Blocked Persons List maintained by the 
U.S. Department of Treasury’s Office of Foreign Assets Control: Bank Melli, Bank Sepah, and Europäisch-Iranische 
Handelsbank. These services have been terminated or are in the process of being terminated. For the year ended December 31, 
2018, gross revenues of all DT affiliates generated by roaming and interconnection traffic and telecommunications services 
with the Iranian parties identified herein were less than $1 million, and the estimated net profits were less than $1 million.

In addition, DT, through certain of its non-U.S. subsidiaries, operating a fixed-line network in their respective European home 
countries (in particular Germany), provides telecommunications services in the ordinary course of business to the Embassy of 
Iran in those European countries. Gross revenues and net profits recorded from these activities for the year ended December 31, 
2018 were less than $0.1 million. We understand that DT intends to continue these activities.

50

Critical Accounting Policies and Estimates

Our significant accounting policies are fundamental to understanding our results of operations and financial condition as they 
require that we use estimates and assumptions that may affect the value of our assets or liabilities and financial results. See 
Note 1 – Summary of Significant Accounting Policies of the Notes to the Consolidated Financial Statements for further 
information.

Seven of these policies, below, are critical because they require management to make difficult, subjective and complex 
judgments about matters that are inherently uncertain and because it is likely that materially different amounts would be 
reported under different conditions or using different assumptions or inputs. Actual results could differ from those estimates.

Management and the Audit Committee of the Board of Directors have reviewed and approved these critical accounting policies.

Revenue Recognition

We primarily generate our revenue from providing wireless services to customers and selling or leasing devices and 
accessories. Our contracts with customers may involve multiple performance obligations, which include wireless services, 
wireless devices or a combination thereof, and we allocate the transaction price between each performance obligation based on 
its relative standalone selling price.

Significant Judgments

The most significant judgments affecting the amount and timing of revenue from contracts with our customers include the 
following items:

•  Revenue for service contracts that we assess are not probable of collection is not recognized until the contract is 

completed and cash is received. Collectibility is re-assessed when there is a significant change in facts or 
circumstances. Our assessment of collectibility considers whether we may limit our exposure to credit risk through our 
right to stop transferring additional service in the event the customer is delinquent as well as certain contract terms 
such as down payments that reduce our exposure to credit risk. Customer credit behavior is inherently uncertain. See 
“Allowances,” below, for more discussion on how we assess credit risk.
Promotional EIP bill credits offered to a customer on an equipment sale that are paid over time and are contingent on 
the customer maintaining a service contract may result in an extended service contract based on whether a substantive 
penalty is deemed to exist. Determining whether contingent EIP bill credits result in a substantive termination penalty 
may require significant judgment.

• 

•  The identification of distinct performance obligations within our service plans may require significant judgment.
•  Revenue is recorded net of costs paid to another party for performance obligations where we arrange for the other 

party to transfer goods or services to the customer (i.e., when we are acting as an agent). For example, performance 
obligations relating to services provided by third-party content providers where we neither controls a right to the 
content provider’s service nor controls the underlying service itself are presented net because we are acting as an 
agent. The determination of whether we control the underlying service or right to the service prior to our transfer to 
the customer requires, at times, significant judgment.
For transactions where we recognize a significant financing component, judgment is required to determine the 
discount rate. For EIP sales, the discount rate used to adjust the transaction price primarily reflects current market 
interest rates and the estimated credit risk of the customer. Customer credit behavior is inherently uncertain. See 
“Allowances”, below, for more discussion on how we assess credit risk.

• 

•  Our products are generally sold with a right of return, which is accounted for as variable consideration when 

• 

estimating the amount of revenue to recognize. Device return levels are estimated based on the expected value method 
as there are a large number of contracts with similar characteristics and the outcome of each contract is independent of 
the others. Historical return rate experience is a significant input to our expected value methodology.
Sales of equipment to indirect dealers who have been identified as our customer (referred to as the sell-in model) often 
include credits subsequently paid to the dealer as a reimbursement for any discount promotions offered to the end 
consumer. These credits (payments to a customer) are accounted for as variable consideration when estimating the 
amount of revenue to recognize from the sales of equipment to indirect dealers and are estimated based on historical 
experience and other factors, such as expected promotional activity. 

•  The determination of the standalone selling price for contracts that involve more than one performance obligation may 

• 

require significant judgment, such as when the selling price of a good or service is not readily observable.
For capitalized contract costs, determining the amortization period over which such costs are recognized as well as 
assessing the indicators of impairment may require significant judgment. 

51

Allowances

We maintain an allowance for credit losses, which is management’s estimate of such losses inherent in our receivables 
portfolio, comprised of accounts receivable and EIP receivable segments. Changes in the allowance for credit losses and, 
therefore, in related provision for credit losses (“bad debt expense”) can materially affect earnings. Credit risk characteristics 
are assessed for each receivable segment. In applying the judgment and review required to determine the allowance for credit 
losses, management considers a number of factors, including receivable volumes, receivable delinquency status, historical loss 
experience and other conditions influencing loss expectations, such as macro-economic conditions. While our methodology 
attributes portions of the allowance to specific portfolio segments, the entire allowance for credit losses is available to absorb 
credit losses inherent in the total receivables portfolio.

Management also considers an amount that represents management’s judgment of risks inherent in the process and assumptions 
used in establishing the allowance for credit losses, including process risk and other subjective factors, including industry 
trends and emerging risk assessments.

To the extent that actual loss experience differs significantly from historical trends or assumptions, the appropriate allowance 
levels for realized credit losses could differ from the estimate. We write off account balances if collection efforts are 
unsuccessful and the receivable balance is deemed uncollectible, based on customer credit ratings and the length of time from 
the original billing date.

We offer certain retail customers the option to pay for their devices and other purchases in installments over a period of up to 
36 months using an EIP. EIP receivables not held for sale are reported in our Consolidated Balance Sheets at outstanding 
principal adjusted for any charge-offs, allowance for credit losses and unamortized discounts. Receivables held for sale are 
reported at the lower of amortized cost or fair value. At the time of an installment sale, we impute a discount for interest if the 
EIP term exceeds 12 months as there is no stated rate of interest on the EIP receivables. The EIP receivables are recorded at 
their present value, which is determined by discounting future cash payments at the imputed interest rate. The difference 
between the recorded amount of the EIP receivables and their unpaid principal balance (i.e., the contractual amount due from 
the customer) results in a discount which is recorded as a reduction in transaction price and allocated to the performance 
obligations of the arrangement. We determine the imputed discount rate based primarily on current market interest rates and the 
estimated credit risk on the EIP receivables. As a result, we do not recognize a separate credit loss allowance at the time of 
issuance as the effects of uncertainty about future cash flows resulting from credit risk are included in the initial present value 
measurement of the receivable. The imputed discount on EIP receivables is amortized over the financed installment term using 
the effective interest method and recognized as Other revenues in our Consolidated Statements of Comprehensive Income.

Subsequent to the initial determination of the imputed discount, we assess the need for and, if necessary, recognize an 
allowance for credit losses to the extent the amount of estimated probable losses on the gross EIP receivable balances exceed 
the remaining unamortized imputed discount balances. 

Total imputed discount and allowances was approximately 8.1% of the total amount of gross accounts receivable, including EIP 
receivables at both December 31, 2018 and 2017.

Deferred Purchase Price Assets

In connection with the sales of certain service and EIP accounts receivable pursuant to the sale arrangements, we have deferred 
purchase price assets measured at fair value that are based on a discounted cash flow model using unobservable Level 3 inputs, 
including customer default rates and credit worthiness, dilutions and recoveries. See Note 4 – Sales of Certain Receivables for 
further information.

Depreciation

Depreciation commences once assets have been placed in service. We generally depreciate property and equipment over the 
period the property and equipment provide economic benefit. Leased wireless devices are depreciated to their estimated 
residual value over the period expected to provide utility to us, which is generally shorter than the lease term and considers 
expected losses. Depreciable life studies are performed periodically to confirm the appropriateness of depreciable lives for 
certain categories of property, plant and equipment. These studies consider actual usage, physical wear and tear, replacement 
history and assumptions about technology evolution. When these factors indicate that the useful life of an asset is different from 
the previous assessment, the remaining book values are depreciated prospectively over the adjusted remaining estimated useful 

52

life. See Note 1 – Summary of Significant Accounting Policies and Note 5 – Property and Equipment of the Notes to the 
Consolidated Financial Statements for information regarding depreciation of assets, including management’s underlying 
estimates of useful lives.

Evaluation of Goodwill and Indefinite-Lived Intangible Assets for Impairment 

We assess the carrying value of our goodwill and other indefinite-lived intangible assets, such as our spectrum licenses, for 
potential impairment annually as of December 31, or more frequently if events or changes in circumstances indicate such assets 
might be impaired.

When assessing goodwill for impairment we may elect to first perform a qualitative assessment for a reporting unit to 
determine if the quantitative impairment test is necessary. If we do not perform a qualitative assessment, or if the qualitative 
assessment indicates it is more likely than not the fair value of the reporting unit is less than its carrying amount, we perform a 
quantitative test. We recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s 
fair value; however, the loss recognized would not exceed the total amount of goodwill allocated to that reporting unit.

The fair value of the reporting unit is determined using a market approach, which is based on market capitalization. We 
recognize market capitalization is subject to volatility and will monitor changes in market capitalization to determine whether 
declines, if any, necessitate an interim impairment review. In the event market capitalization does decline below its book value, 
we will consider the length, severity and reasons for the decline when assessing whether potential impairment exists, including 
considering whether a control premium should be added to the market capitalization. We believe short-term fluctuations in 
share price may not necessarily reflect the underlying aggregate fair value. 

We test spectrum licenses for impairment on an aggregate basis, consistent with our management of the overall business at a 
national level. We may elect to first perform a qualitative assessment to determine whether it is more likely than not that the fair 
value of an intangible asset is less than its carrying value. If we do not perform the qualitative assessment, or if the qualitative 
assessment indicates it is more likely than not the fair value of the intangible asset is less than its carrying amount, we calculate 
the estimated fair value of the intangible asset. If the estimated fair value of the spectrum licenses is lower than their carrying 
amount, an impairment loss is recognized. We estimate fair value using the Greenfield methodology, which is an income 
approach, to estimate the price at which an orderly transaction to sell the asset would take place between market participants at 
the measurement date under current market conditions. The Greenfield methodology values the spectrum licenses by 
calculating the cash flow generating potential of a hypothetical start-up company that goes into business with no assets except 
the asset to be valued (in this case, spectrum licenses). The value of the spectrum licenses can be considered as equal to the 
present value of the cash flows of this hypothetical start-up company. We base the assumptions underlying the Greenfield 
methodology on a combination of market participant data and our historical results, trends and business plans. Future cash 
flows in the Greenfield methodology are based on estimates and assumptions of market participant revenues, EBITDA margin, 
network build-out period and a long-term growth rate for a market participant. The cash flows are discounted using a weighted 
average cost of capital.

The valuation approaches utilized to estimate fair value for the purposes of the impairment tests of goodwill and spectrum 
licenses require the use of assumptions and estimates, which involve a degree of uncertainty. If actual results or future 
expectations are not consistent with the assumptions, this may result in the recording of significant impairment charges on 
goodwill or spectrum licenses. The most significant assumptions within the valuation models are the discount rate, revenues, 
EBITDA margins, capital expenditures and the long-term growth rate. See Note 1 – Summary of Significant Accounting 
Policies and Note 6 – Goodwill, Spectrum Licenses and Other Intangible Assets of the Notes to the Consolidated Financial 
Statements for information regarding our annual impairment test and impairment charges.

Rent Expense

We have operating leases for cell sites, retail locations, corporate offices and dedicated transportation lines, some of which have 
escalating rentals during the initial lease term and during subsequent optional renewal periods. We recognize rent expense on a 
straight-line basis, over the non-cancelable lease term and renewal periods that are considered reasonably assured at the 
inception of the lease. We consider several factors in assessing whether renewal periods are reasonably assured of being 
exercised, including the continued maturation of our network nationwide, technological advances within the 
telecommunications industry and the availability of alternative sites. 

53

Income Taxes

Deferred tax assets and liabilities are recognized based on temporary differences between the financial statement and tax bases 
of assets and liabilities using enacted tax rates expected to be in effect when these differences are realized. A valuation 
allowance is recorded when it is more likely than not that some portion or all of a deferred tax asset will not be realized. The 
ultimate realization of a deferred tax asset depends on the ability to generate sufficient taxable income of the appropriate 
character and in the appropriate taxing jurisdictions within the carryforward periods available. 

We account for uncertainty in income taxes recognized in the financial statements in accordance with the accounting guidance 
for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. We 
assess whether it is more likely than not that a tax position will be sustained upon examination based on the technical merits of 
the position and adjust the unrecognized tax benefits in light of changes in facts and circumstances, such as changes in tax law, 
interactions with taxing authorities and developments in case law.

Accounting Pronouncements Not Yet Adopted

See Note 1 – Summary of Significant Accounting Policies of the Notes to the Consolidated Financial Statements for 
information regarding recently issued accounting standards.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk

We are exposed to economic risks in the normal course of business, primarily from changes in interest rates, including changes 
in investment yields and changes in spreads due to credit risk and other factors. These risks, along with other business risks, 
impact our cost of capital. Our policy is to manage exposure related to fluctuations in interest rates in order to manage capital 
costs, control financial risks and maintain financial flexibility over the long term. We have established interest rate risk limits 
that are closely monitored by measuring interest rate sensitivities of our debt portfolio. We do not foresee significant changes in 
the strategies used to manage market risk in the near future.

We are exposed to changes in interest rates on our Incremental Term Loan Facility with DT, our majority stockholder. See Note 
8 – Debt of the Notes to the Consolidated Financial Statements for further information.

To perform the sensitivity analysis, we selected hypothetical changes in market rates that are expected to reflect reasonably 
possible near-term changes in those rates. We assessed the risk of a change in the fair value from the effect of a hypothetical 
interest rate change for 30-day LIBOR rates of positive 150 and negative 50 basis points. In cases where the debt is redeemable 
and the fair value calculation results in a liability greater than the cost to replace the debt, the maximum liability is assumed to 
be no greater than the current cost to redeem the debt. As of December 31, 2018, the change in the fair value of our Incremental 
Term Loan Facility, based on this hypothetical change, is shown in the table below:

(in millions)

Carrying Amount

Fair Value

+150 Basis Point Shift

-50 Basis Point Shift

LIBOR plus 1.50% Senior Secured Term Loan due 2022

$

LIBOR plus 1.75% Senior Secured Term Loan due 2024

2,000

$

2,000

1,991

$

1,985

1,933

$

1,913

2,011

2,010

Fair Value Assuming

We are exposed to changes in the benchmark interest rate associated with our interest rate lock derivatives. See Note 7 – Fair 
Value Measurements of the Notes to the Consolidated Financial Statements for further information.

To perform the sensitivity analysis, we selected hypothetical changes in market rates that are expected to reflect reasonably 
possible near-term changes in those rates. We assessed the risk of a change in fair value from the effect of a hypothetical 
interest rate change for eight and 10-year LIBOR swap rates of positive 200 and negative 100 basis points. As of December 31, 
2018, the change in the fair value of our interest rate lock derivatives, based on this hypothetical change, is show in the table 
below:

(in millions)

Interest rate lock derivatives

Fair Value Assuming

Fair Value

+200 Basis Point Shift

-100 Basis Point Shift

$

(447) $

1,007

$

(1,303)

54

Item 8. Financial Statements and Supplementary Data

Report of Independent Registered Public Accounting Firm 

To the Board of Directors and Stockholders of T-Mobile US, Inc.

Opinions on the Financial Statements and Internal Control over Financial Reporting

We have audited the accompanying consolidated balance sheets of T-Mobile US, Inc. and its subsidiaries as of December 
31, 2018 and 2017, and the related consolidated statements of comprehensive income, of stockholders’ equity and of 
cash flows for each of the three years in the period ended December 31, 2018, including the related notes (collectively 
referred to as the “consolidated financial statements”). We also have audited the Company's internal control over 
financial reporting as of December 31, 2018, based on criteria established in Internal Control - Integrated Framework 
(2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).  

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the 
financial position of the Company as of December 31, 2018 and 2017, and the results of their operations and their cash 
flows for each of the three years in the period ended December 31, 2018 in conformity with accounting principles 
generally accepted in the United States of America. Also in our opinion, the Company maintained, in all material 
respects, effective internal control over financial reporting as of December 31, 2018, based on criteria established in 
Internal Control - Integrated Framework (2013) issued by the COSO.

Change in Accounting Principle

As discussed in Note 1 to the consolidated financial statements, the Company changed the manner in which it accounts 
for revenues and the manner in which it accounts for cash receipts and cash payments in 2018.

Basis for Opinions

The Company's management is responsible for these consolidated financial statements, for maintaining effective internal 
control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, 
included in Management’s Annual Report on Internal Control over Financial Reporting appearing under Item 9A. Our 
responsibility is to express opinions on the Company’s consolidated financial statements and on the Company's internal 
control over financial reporting based on our audits. We are a public accounting firm registered with the Public Company 
Accounting Oversight Board (United States) (“PCAOB”) and are required to be independent with respect to the 
Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities 
and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and 
perform the audits to obtain reasonable assurance about whether the consolidated financial statements are free of 
material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was 
maintained in all material respects.  

Our audits of the consolidated financial statements included performing procedures to assess the risks of material misstatement 
of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. 
Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated 
financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by 
management, as well as evaluating the overall presentation of the consolidated financial statements. Our audit of internal 
control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the 
risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based 
on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the 
circumstances. We believe that our audits provide a reasonable basis for our opinions.

Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding 
the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with 

55

generally accepted accounting principles. A company’s internal control over financial reporting includes those policies 
and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the 
transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are 
recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting 
principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of 
management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely 
detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the 
financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. 
Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become 
inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may 
deteriorate.

/s/ PricewaterhouseCoopers LLP
Seattle, Washington
February 6, 2019 

We have served as the Company’s auditor since 2001.

56

T-Mobile US, Inc.
Consolidated Balance Sheets 

(in millions, except share and per share amounts)

Assets

Current assets

Cash and cash equivalents

Accounts receivable, net of allowances of $67 and $86

Equipment installment plan receivables, net

Accounts receivable from affiliates

Inventories

Other current assets

Total current assets

Property and equipment, net

Goodwill

Spectrum licenses

Other intangible assets, net

Equipment installment plan receivables due after one year, net

Other assets

Total assets

Liabilities and Stockholders' Equity

Current liabilities

Accounts payable and accrued liabilities

Payables to affiliates

Short-term debt

Deferred revenue

Other current liabilities

Total current liabilities

Long-term debt

Long-term debt to affiliates

Tower obligations

Deferred tax liabilities

Deferred rent expense

Other long-term liabilities

Total long-term liabilities

Commitments and contingencies (Note 15)

Stockholders' equity

Common Stock, par value $0.00001 per share, 1,000,000,000 shares authorized; 851,675,119 and 860,861,998
shares issued, 850,180,317 and 859,406,651 shares outstanding

Additional paid-in capital

Treasury stock, at cost, 1,494,802 and 1,455,347 shares issued

Accumulated other comprehensive income

Accumulated deficit

Total stockholders' equity

Total liabilities and stockholders' equity

December 31,
2018

December 31,
2017

$

1,203

$

1,769

2,538

11

1,084

1,676

8,281

23,359

1,901

35,559

198

1,547

1,623

$

$

72,468

$

7,741

$

200

841

698

787

10,267

12,124

14,582

2,557

4,472

2,781

967

37,483

—

38,010

(6)

(332)

(12,954)

24,718

$

72,468

$

1,219

1,915

2,290

22

1,566

1,903

8,915

22,196

1,683

35,366

217

1,274

912

70,563

8,528

182

1,612

779

414

11,515

12,121

14,586

2,590

3,537

2,720

935

36,489

—

38,629

(4)

8

(16,074)

22,559

70,563

The accompanying notes are an integral part of these Consolidated Financial Statements.

57

 T-Mobile US, Inc.
Consolidated Statements of Comprehensive Income 

(in millions, except share and per share amounts)

Year Ended December 31,

2018

2017

2016

$

20,862

$

19,448

$

Revenues

Branded postpaid revenues

Branded prepaid revenues

Wholesale revenues

Roaming and other service revenues

Total service revenues

Equipment revenues

Other revenues

Total revenues

Operating expenses

Cost of services, exclusive of depreciation and amortization shown separately below

Cost of equipment sales

Selling, general and administrative

Depreciation and amortization

Cost of MetroPCS business combination

Gains on disposal of spectrum licenses

Total operating expense

Operating income

Other income (expense)

Interest expense

Interest expense to affiliates

Interest income

Other income (expense), net

Total other expense, net

Income before income taxes

Income tax (expense) benefit

Net income

Dividends on preferred stock

Net income attributable to common stockholders

Net income

Other comprehensive (loss) income, net of tax

Unrealized gain on available-for-sale securities, net of tax effect of $0, $2 and $1

Unrealized loss on cash flow hedges, net of tax effect of ($115), $0 and $0

Other comprehensive (loss) income

Total comprehensive income

Earnings per share

Basic

Diluted

Weighted average shares outstanding

Basic

Diluted

$

$

$

$

$

9,598

1,183

349

31,992

10,009

1,309

43,310

6,307

12,047

13,161

6,486

—

—

38,001

5,309

(835)

(522)

19

(54)

(1,392)

3,917

(1,029)

2,888

—

2,888

2,888

—

(332)

(332)

2,556

3.40

3.36

$

$

$

$

$

9,380

1,102

230

30,160

9,375

1,069

40,604

6,100

11,608

12,259

5,984

—

(235)

35,716

4,888

(1,111)

(560)

17

(73)

(1,727)

3,161

1,375

4,536

(55)

4,481

4,536

7

—

7

4,543

5.39

5.20

$

$

$

$

$

18,138

8,553

903

250

27,844

8,727

919

37,490

5,731

10,819

11,378

6,243

104

(835)

33,440

4,050

(1,418)

(312)

13

(6)

(1,723)

2,327

(867)

1,460

(55)

1,405

1,460

2

—

2

1,462

1.71

1.69

849,744,152

858,290,174

831,850,073

871,787,450

822,470,275

833,054,545

The accompanying notes are an integral part of these Consolidated Financial Statements.

58

T-Mobile US, Inc.
Consolidated Statements of Cash Flows

(in millions)
Operating activities
Net income
Adjustments to reconcile net income to net cash provided by operating activities

Year Ended December 31,

2018

2017

2016

$

2,888

$

4,536

$

1,460

Depreciation and amortization
Stock-based compensation expense
Deferred income tax expense (benefit)
Bad debt expense
Losses from sales of receivables
Deferred rent expense
Losses on redemption of debt
Gains on disposal of spectrum licenses
Changes in operating assets and liabilities

Accounts receivable
Equipment installment plan receivables
Inventories
Other current and long-term assets
Accounts payable and accrued liabilities
Other current and long-term liabilities

Other, net
Net cash provided by operating activities

Investing activities
Purchases of property and equipment, including capitalized interest of $362, $136 and $142

Purchases of spectrum licenses and other intangible assets, including deposits

Proceeds related to beneficial interests in securitization transactions
Acquisition of companies, net of cash acquired
Sales of short-term investments
Other, net

Net cash used in investing activities

Financing activities
Proceeds from issuance of long-term debt
Proceeds from borrowing on revolving credit facility
Repayments of revolving credit facility
Repayments of capital lease obligations
Repayments of short-term debt for purchases of inventory, property and equipment, net

Repayments of long-term debt
Repurchases of common stock
Tax withholdings on share-based awards
Dividends on preferred stock
Cash payments for debt prepayment or debt extinguishment costs
Other, net

Net cash (used in) provided by financing activities
Change in cash and cash equivalents

Cash and cash equivalents
Beginning of period
End of period
Supplemental disclosure of cash flow information
Interest payments, net of amounts capitalized, $0, $79 and $0 of which recorded as debt
discount
Income tax payments
Noncash beneficial interest obtained in exchange for securitized receivables

Noncash investing and financing activities
Changes in accounts payable for purchases of property and equipment
Leased devices transferred from inventory to property and equipment
Returned leased devices transferred from property and equipment to inventory

Issuance of short-term debt for financing of property and equipment
Assets acquired under capital lease obligations

$

$

$

6,486
424
980
297
157
26
122
—

(4,617)
(1,598)
(201)
(181)
(867)
(69)
52
3,899

(5,541)

(127)

5,406
(338)
—
21
(579)

2,494
6,265
(6,265)
(700)
(300)

(3,349)
(1,071)
(146)
—
(212)
(52)
(3,336)
(16)

1,219
1,203

1,525

51
4,972

65
1,011
(326)

291
885

5,984
306
(1,404)
388
299
76
86
(235)

(3,931)
(1,812)
(844)
(575)
1,079
(233)
111
3,831

(5,237)

(5,828)

4,319
—
—
1
(6,745)

10,480
2,910
(2,910)
(486)
(300)

(10,230)
(427)
(166)
(55)
(188)
5
(1,367)
(4,281)

$

$

$

$

$

$

5,500
1,219

2,028

31
4,063

313
1,131
(742)

292
887

6,243
235
914
477
228
121
—
(835)

(3,459)
(673)
(802)
(133)
(1,201)
158
46
2,779

(4,702)

(3,968)

3,356
—
2,998
(8)
(2,324)

997
—
—
(205)
(150)

(20)
—
(121)
(55)
—
17
463
918

4,582
5,500

1,681

25
3,411

285
1,588
(602)

150
799

The accompanying notes are an integral part of these Consolidated Financial Statements.

59

T-Mobile US, Inc.
Consolidated Statement of Stockholders’ Equity 

(in millions, except shares)

Preferred
Stock
Outstanding

Common
Stock
Outstanding

Treasury
Shares at
Cost

Par Value and
Additional
Paid-in
Capital

Accumulated
Other
Comprehensive
Income (Loss)

Accumulated
Deficit

Total
Stockholders'
Equity

Balance as of December 31, 2015

20,000,000

818,391,219

$

— $

38,666

$

(1) $

(22,108) $

Net income

Other comprehensive income

Stock-based compensation

Exercise of stock options

Stock issued for employee stock
purchase plan

Issuance of vested restricted stock
units

Shares withheld related to net share
settlement of stock awards and stock
options

Transfer RSU to NQDC plan

Dividends on preferred stock
Prior year Retained Earnings
Balance as of December 31, 2016

Net income

Other comprehensive income

Stock-based compensation

Exercise of stock options

Stock issued for employee stock
purchase plan

Issuance of vested restricted stock
units

Shares withheld related to net share
settlement of stock awards and stock
options

Mandatory conversion of preferred
shares to common shares

Repurchases of common stock

Transfer RSU to NQDC plan

Dividends on preferred stock
Balance as of December 31, 2017

Net income

Other comprehensive income

Stock-based compensation

Exercise of stock options

Stock issued for employee stock
purchase plan

Issuance of vested restricted stock
units

Issuance of restricted stock awards

Shares withheld related to net share
settlement of stock awards and stock
options

Repurchases of common stock

Transfer RSU to NQDC plan
Prior year Retained Earnings (1)
Balance as of December 31, 2018

—

—

—

—

—

—

—

—

—
—

—

—

—

982,904

1,905,534

7,712,463

(2,605,807)

(28,982)

—
—

20,000,000

826,357,331

—

—

—

—

—

—

—

—

—

450,493

1,832,043

8,338,271

—

(2,754,721)

(20,000,000)

32,237,983

—

—

—

(7,010,889)

(43,860)

—

— 859,406,651

—

—

—

—

—

—

—

—

—

—

—

—

187,965

2,011,794

7,448,148

225,799

(2,321,827)

(16,738,758)

—

—

—

—

—

—

—

(1)

—
—

(1)

—

—

—

—

—

—

—

—

—

(3)

—

(4)

—

—

—

—

—

—

—

—

(39,455)
—
—
—
— 850,180,317

$

(2)
—
(6) $

—

—

264

29

63

—

(122)

1

(55)
—

38,846

—

—

344

19

82

—

(166)

—

(444)

3

(55)

38,629

—

—

473

3

103

—

(146)

(1,054)

2
—
38,010

$

—

2

—

—

—

—

—

—

—
—

1

—

7

—

—

—

—

—

—

—

—

—

8

—

(332)

—

—

—

—

—

—

1,460

—

—

—

—

—

—

—

—
38

(20,610)

4,536

—

—

—

—

—

—

—

—

—

—

(16,074)

2,888

—

—

—

—

—

—

—

—
(8)
(332) $

—
232
(12,954) $

16,557

1,460

2

264

29

63

—

(122)

—

(55)
38

18,236

4,536

7

344

19

82

—

(166)

—

(444)

—

(55)

22,559

2,888

(332)

473

3

103

—

(146)

(1,054)

—
224
24,718

(1)    On January 1, 2018, we adopted three ASUs which resulted in adjustments to Accumulated other comprehensive income and Accumulated deficit. The 
adoption of the new revenue standard resulted in an adjustment to Accumulated deficit of $213 million. The adoption of ASU 2016-01 resulted in a 
reclassification of Accumulated other comprehensive income to Accumulated deficit of $8 million. The adoption of ASU 2016-16 resulted in an 
adjustment to Accumulated deficit of $11 million. See Note 1 – Summary of Significant Accounting Policies of the Notes to the Consolidated Financial 
Statements included in Part II, Item 8 of this Form 10-K for further information.

The accompanying notes are an integral part of these Consolidated Financial Statements.

60

T-Mobile US, Inc.
Index for Notes to the Consolidated Financial Statements

Summary of Significant Accounting Policies

Business Combinations

Receivables and Allowance for Credit Losses

Sales of Certain Receivables

Property and Equipment

Goodwill, Spectrum License Transactions and Other Intangible Assets

Fair Value Measurements

Debt

Tower Obligations

Revenue from Contracts with Customers

Employee Compensation and Benefit Plans

Repurchases of Common Stock

Income Taxes
Earnings Per Share

Commitments and Contingencies

Additional Financial Information

Guarantor Financial Information

Note 1

Note 2

Note 3

Note 4

Note 5

Note 6

Note 7

Note 8

Note 9

Note 10

Note 11

Note 12

Note 13
Note 14

Note 15

Note 16

Note 17

62

75

78

80

83

84

86

88

92

93

95

97

98
100

101

103

104

61

T-Mobile US, Inc.
Notes to the Consolidated Financial Statements

Note 1 – Summary of Significant Accounting Policies

Description of Business

T-Mobile US, Inc. (“T-Mobile,” “we,” “our,” “us” or the “Company”), together with its consolidated subsidiaries, is a leading 
provider of mobile communications services, including voice, messaging and data, under its flagship brands, T-Mobile and 
Metro™ by T-Mobile (“Metro by T-Mobile”), in the United States (“U.S.”), Puerto Rico and the U.S. Virgin Islands. All of our 
revenues were earned in, and all of our long-lived assets are located in, the U.S., Puerto Rico and the U.S. Virgin Islands. We 
provide mobile communications services primarily using 4G Long-Term Evolution (“LTE”) technology. We also offer a wide 
selection of wireless devices, including handsets, tablets and other mobile communication devices, and accessories for sale, as 
well as financing through Equipment Installment Plans (“EIP”) and leasing through JUMP! On Demand™. Additionally, we 
provide reinsurance for handset insurance policies and extended warranty contracts offered to our mobile communications 
customers.

Basis of Presentation

The preparation of financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”) requires 
our management to make estimates and assumptions which affect the financial statements and accompanying notes. Examples 
include service revenues earned but not yet billed, service revenues billed but not yet earned, relative standalone selling prices, 
allowances for credit losses and sales returns, discounts for imputed interest on EIP receivables, guarantee liabilities, losses 
incurred but not yet reported, tax liabilities, deferred income taxes including valuation allowances, useful lives of long-lived 
assets, fair value estimates of asset retirement obligations, residual values on leased handsets, reasonably assured renewal terms 
for operating leases, stock-based compensation forfeiture rates, and fair value measurements, including those related to 
goodwill, spectrum licenses, intangible assets, beneficial interests in factoring and securitization transactions and derivative 
financial instruments. Estimates are based on historical experience, where applicable, and other assumptions which our 
management believes are reasonable under the circumstances. These estimates are inherently subject to judgment and actual 
results could differ from these estimates. We operate as a single operating segment. 

Certain prior year amounts have been reclassified to conform to the current year’s presentation. See “Accounting 
Pronouncements Adopted in the Current Year” below.

Cash and Cash Equivalents

Cash equivalents consist of highly liquid money market funds and U.S. Treasury securities with remaining maturities of three 
months or less at the date of purchase.

Receivables and Allowance for Credit Losses

Accounts receivable consist primarily of amounts currently due from customers, other carriers and third-party retail channels. 
Accounts receivable not held for sale are reported in our Consolidated Balance Sheets at outstanding principal adjusted for any 
charge-offs and the allowance for credit losses. Accounts receivable held for sale are reported at the lower of amortized cost or 
fair value. We have an arrangement to sell the majority of service accounts receivable on a revolving basis, which are treated as 
sales of financial assets.

We offer certain retail customers the option to pay for their devices and other purchases in installments over a period of up to 
36 months using an EIP. EIP receivables not held for sale are reported in our Consolidated Balance Sheets at outstanding 
principal adjusted for any charge-offs, allowance for credit losses and unamortized discounts. Receivables held for sale are 
reported at the lower of amortized cost or fair value. At the time of an installment sale, we impute a discount for interest if the 
EIP term exceeds 12 months as there is no stated rate of interest on the EIP receivables. The EIP receivables are recorded at 
their present value, which is determined by discounting future cash payments at the imputed interest rate. The difference 
between the recorded amount of the EIP receivables and their unpaid principal balance (i.e., the contractual amount due from 
the customer) results in a discount which is allocated to the performance obligation of the arrangement and recorded as a 
reduction in transaction price in Total service revenues and Equipment revenues in our Consolidated Statements of 
Comprehensive Income. We determine the imputed discount rate based primarily on current market interest rates and the 
estimated credit risk on the EIP receivables. As a result, we do not recognize a separate credit loss allowance at the time of 

62

issuance as the effects of uncertainty about future cash flows resulting from credit risk are included in the initial present value 
measurement of the receivable. The imputed discount on EIP receivables is amortized over the financed installment term using 
the effective interest method and recognized as Other revenues in our Consolidated Statements of Comprehensive Income. 

Subsequent to the initial determination of the imputed discount, we assess the need for and, if necessary, recognize an 
allowance for credit losses to the extent the amount of estimated probable losses on the gross EIP receivable balances exceed 
the remaining unamortized imputed discount balances.

Total imputed discount and allowances was approximately 8.1% of the total amount of gross accounts receivable, including EIP 
receivables at both December 31, 2018 and 2017.

The current portion of the EIP receivables is included in Equipment installment plan receivables, net and the long-term portion 
of the EIP receivables is included in Equipment installment plan receivables due after one year, net in our Consolidated Balance 
Sheets. We have an arrangement to sell certain EIP receivables on a revolving basis, which are treated as sales of financial 
assets.

We maintain an allowance for credit losses and determine its appropriateness through an established process that assesses the 
losses inherent in our receivables portfolio. We develop and document our allowance methodology at the portfolio segment 
level - accounts receivable portfolio and EIP receivable portfolio segments. While we attribute portions of the allowance to our 
respective accounts receivable and EIP portfolio segments, the entire allowance is available to absorb credit losses inherent in 
the total receivables portfolio.

Our process involves procedures to appropriately consider the unique risk characteristics of our accounts receivable and EIP 
receivable portfolio segments. For each portfolio segment, losses are estimated collectively for groups of receivables with 
similar characteristics. Our allowance levels are influenced by receivable volumes, receivable delinquency status, historical loss 
experience and other conditions influencing loss expectations, such as macro-economic conditions.

Inventories

Inventories consist primarily of wireless devices and accessories, which are valued at the lower of cost or market. Cost is 
determined using standard cost which approximates average cost. Shipping and handling costs paid to wireless device and 
accessories vendors, and costs to refurbish used devices recovered through our device upgrade programs are included in the 
standard cost of inventory. We record inventory write-downs to net realizable value for obsolete and slow-moving items based 
on inventory turnover trends and historical experience.

Long-Lived Assets

Long-lived assets include assets that do not have indefinite lives, such as property and equipment and other intangible assets. 
All of our long-lived assets are located in the U.S., including Puerto Rico and the U.S. Virgin Islands. We assess potential 
impairments to our long-lived assets when events or changes in circumstances indicate the carrying amount of the asset may 
not be recoverable. If any indicators of impairment are present, we test recoverability. The carrying value of a long-lived asset 
or asset group is not recoverable if it exceeds the sum of the undiscounted cash flows expected to be generated from the use and 
eventual disposition of the asset or asset group. If the undiscounted cash flows do not exceed the asset or asset group’s carrying 
amount, then an impairment loss is recorded, measured as the amount by which the carrying amount of a long-lived asset or 
asset group exceeds its fair value.

Property and Equipment

Property and equipment consists of buildings and equipment, wireless communication systems, leasehold improvements, 
capitalized software, leased wireless devices and construction in progress. Buildings and equipment include certain network 
server equipment. Wireless communication systems include assets to operate our wireless network and IT data centers, 
including tower assets and leasehold improvements, assets related to the liability for the retirement of long-lived assets and 
capital leases. Leasehold improvements include asset improvements other than those related to the wireless network.

Property and equipment are recorded at cost less accumulated depreciation and impairments, if any, in Property and equipment, 
net on our Consolidated Balance Sheets. We generally depreciate property and equipment over the period the property and 
equipment provide economic benefit. Depreciable life studies are performed periodically to confirm the appropriateness of 
depreciable lives for certain categories of property and equipment. These studies take into account actual usage, physical wear 
and tear, replacement history and assumptions about technology evolution. When these factors indicate the useful life of an 

63

asset is different from the previous assessment, the remaining book value is depreciated prospectively over the adjusted 
remaining estimated useful life. Leasehold improvements are depreciated over the shorter of their estimated useful lives or the 
related lease term.

JUMP! On Demand allows customers to lease a device over a period of up to 18 months and upgrade it for a new device up to 
one time per month. To date, all of our leased devices were classified as operating leases. At operating lease inception, leased 
wireless devices are transferred from inventory to property and equipment. Leased wireless devices are depreciated to their 
estimated residual value over the period expected to provide utility to us, which is generally shorter than the lease term and 
considers expected losses. Revenues associated with the leased wireless devices, net of incentives, are generally recognized 
over the lease term. Upon device upgrade or at lease end, customers must return or purchase their device. Returned devices 
transferred from Property and equipment, net are recorded as inventory and are valued at the lower of cost or market with any 
write-down to market recognized as Cost of equipment sales in our Consolidated Statements of Comprehensive Income.

Costs of major replacements and improvements are capitalized. Repair and maintenance expenditures which do not enhance or 
extend the asset’s useful life are charged to operating expenses as incurred. Construction costs, labor and overhead incurred in 
the expansion or enhancement of our wireless network are capitalized. Capitalization commences with pre-construction period 
administrative and technical activities, which includes obtaining leases, zoning approvals and building permits, and ceases at 
the point at which the asset is ready for its intended use. We capitalize interest associated with the acquisition or construction of 
certain property and equipment. Capitalized interest is reported as a reduction in interest expense and depreciated over the 
useful life of the related assets.

Future obligations related to capital leases are included in Short-term debt and Long-term debt in our Consolidated Balance 
Sheets. Depreciation of assets held under capital leases is included in Depreciation and amortization expense in our 
Consolidated Statements of Comprehensive Income.

We record an asset retirement obligation for the fair value of legal obligations associated with the retirement of tangible long-
lived assets and a corresponding increase in the carrying amount of the related asset in the period in which the obligation is 
incurred. In periods subsequent to initial measurement, we recognize changes in the liability resulting from the passage of time 
and revisions to either the timing or the amount of the original estimate. Over time, the liability is accreted to its present value 
and the capitalized cost is depreciated over the estimated useful life of the asset. Our obligations relate primarily to certain legal 
obligations to remediate leased property on which our network infrastructure and administrative assets are located.

We capitalize certain costs incurred in connection with developing or acquiring internal use software. Capitalization of software 
costs commences once the final selection of the specific software solution has been made and management authorizes and 
commits to funding the software project. Capitalized software costs are included in Property and equipment, net in our 
Consolidated Balance Sheets and are amortized on a straight-line basis over the estimated useful life of the asset. Costs 
incurred during the preliminary project stage, as well as maintenance and training costs, are expensed as incurred.

Other Intangible Assets

Intangible assets that do not have indefinite useful lives are amortized over their estimated useful lives. Customer lists are 
amortized using the sum-of-the-years-digits method over the expected period in which the relationship is expected to contribute 
to future cash flows. The remaining finite-lived intangible assets are amortized using the straight-line method.

Goodwill and Indefinite-Lived Intangible Assets

Goodwill

Goodwill consists of the excess of the purchase price over the fair value of identifiable net assets acquired in a business 
combination.

Spectrum Licenses

Spectrum licenses are carried at costs incurred to acquire the spectrum licenses and the costs to prepare the spectrum licenses 
for their intended use, such as costs to clear acquired spectrum licenses. The Federal Communications Commission 
(“FCC”) issues spectrum licenses which provide us with the exclusive right to utilize designated radio frequency spectrum 
within specific geographic service areas to provide wireless communication services. While spectrum licenses are issued for a 
fixed period of time, typically for up to fifteen years, the FCC has granted license renewals routinely and at a nominal cost. The 
spectrum licenses held by us expire at various dates. We believe we will be able to meet all requirements necessary to secure 

64

renewal of our spectrum licenses at nominal costs. Moreover, we determined there are currently no legal, regulatory, 
contractual, competitive, economic or other factors that limit the useful lives of our spectrum licenses. Therefore, we 
determined the spectrum licenses should be treated as indefinite-lived intangible assets.

At times, we enter into agreements to sell or exchange spectrum licenses. Upon entering into the arrangement, if the transaction 
has been deemed to have commercial substance, spectrum licenses are reviewed for impairment and transferred at their 
carrying value, net of any impairment, to assets held for sale included in Other current assets in our Consolidated Balance 
Sheets until approval and completion of the exchange or sale. Upon closing of the transaction, spectrum licenses acquired as 
part of an exchange of nonmonetary assets are valued at fair value and the difference between the fair value of the spectrum 
licenses obtained, book value of the spectrum licenses transferred and cash paid, if any, is recognized as a gain and included in 
Gains on disposal of spectrum licenses in our Consolidated Statements of Comprehensive Income. Our fair value estimates of 
spectrum licenses are based on information for which there is little or no observable market data. If the transaction lacks 
commercial substance or the fair value is not measurable, the acquired spectrum licenses are recorded at the book value of the 
assets transferred or exchanged.

Impairment

We assess the carrying value of our goodwill and other indefinite-lived intangible assets, such as our spectrum licenses, for 
potential impairment annually as of December 31, or more frequently if events or changes in circumstances indicate such assets 
might be impaired.

When assessing goodwill for impairment we may elect to first perform a qualitative assessment for a reporting unit to 
determine if the quantitative impairment test is necessary. If we do not perform a qualitative assessment, or if the qualitative 
assessment indicates it is more likely than not that the fair value of the two reporting units, wireless business and Layer3 TV, is 
less than its carrying amount, we perform a quantitative test. We recognize an impairment charge for the amount by which the 
carrying amount exceeds the reporting unit’s fair value; however, the loss recognized would not exceed the total amount of 
goodwill allocated to that reporting unit.

We test our spectrum licenses for impairment on an aggregate basis, consistent with our management of the overall business at 
a national level. We may elect to first perform a qualitative assessment to determine whether it is more likely than not that the 
fair value of an intangible asset is less than its carrying value. If we do not perform the qualitative assessment, or if the 
qualitative assessment indicates it is more likely than not that the fair value of the intangible asset is less than its carrying 
amount, we calculate the estimated fair value of the intangible asset. If the estimated fair value of the spectrum licenses is lower 
than their carrying amount, an impairment loss is recognized for the difference. We estimate fair value using the Greenfield 
methodology, which is an income approach, to estimate the price at which an orderly transaction to sell the asset would take 
place between market participants at the measurement date under current market conditions.

Guarantee Liabilities

We offer a device trade-in program, Just Upgrade My Phone (“JUMP!”), which provides eligible customers a specified-price 
trade-in right to upgrade their device. Upon enrollment, participating customers must finance the purchase of a device on an 
EIP and have a qualifying T-Mobile monthly wireless service plan, which is treated as a single multiple-element arrangement 
when entered into at or near the same time. Upon a qualifying JUMP! program upgrade, the customer’s remaining EIP balance 
is settled provided they trade-in their eligible used device in good working condition and purchase a new device from us on a 
new EIP.

For customers who enroll in JUMP!, we recognize a liability and reduce revenue for the portion of revenue which represents 
the estimated fair value of the specified-price trade-in right guarantee. The guarantee liability is valued based on various 
economic and customer behavioral assumptions, which requires judgment, including estimating the customer's remaining EIP 
balance at trade-in, the expected fair value of the used device at trade-in, and the probability and timing of trade-in. When 
customers upgrade their device, the difference between the EIP balance credit to the customer and the fair value of the returned 
device is recorded against the guarantee liabilities. All assumptions are reviewed periodically.

65

Fair Value Measurements

We carry certain assets and liabilities at fair value. Fair value is defined as an exit price, representing the amount that would be 
received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement 
date. The three-tier hierarchy for inputs used in measuring fair value, which prioritizes the inputs based on the observability as 
of the measurement date, is as follows:

Level 1 
Level 2 
Level 3 

Quoted prices in active markets for identical assets or liabilities;
Observable inputs other than the quoted prices in active markets for identical assets and liabilities; and
Unobservable inputs for which there is little or no market data, which require us to develop assumptions of what 
market participants would use in pricing the asset or liability.

Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value 
measurement. Our assessment of the significance of a particular input to the fair value measurement requires judgment, and 
may affect the placement of assets and liabilities being measured within the fair value hierarchy.

The carrying values of cash and cash equivalents, short-term investments, accounts receivable, accounts receivable from 
affiliates and accounts payable approximate fair value due to the short-term maturities of these instruments. The carrying values 
of EIP receivables approximate fair value as the receivables are recorded at their present value, net of unamortized discount and 
allowance for credit losses. There were no financial instruments with a carrying value materially different from their fair value, 
based on quoted market prices or rates for the same or similar instruments, or internal valuation models.

Derivative Financial Instruments

Derivative financial instruments are recognized as either assets or liabilities and are measured at fair value. We do not use 
derivatives for trading or speculative purposes.

For derivative instruments designated as cash flow hedges, changes in fair value are reported as a component of Accumulated 
other comprehensive income (“AOCI”) until reclassified into Interest expense in the same period the hedged transaction affects 
earnings, generally over the life of the related debt. Unrealized gains on derivatives designated as cash flow hedges are 
recorded at fair value as assets, and unrealized losses on derivatives designated as cash flow hedges are recorded at fair value as 
liabilities. 

We have embedded derivatives for certain components of the reset feature of the Senior Reset Notes to affiliates, which are 
required to be bifurcated and are recorded on the Consolidated Balance Sheets at fair value. Changes in fair value are 
recognized in Interest expense to affiliates in our Consolidated Statements of Comprehensive Income. 

Revenue Recognition (effective January 1, 2018)

We primarily generate our revenue from providing wireless services to customers and selling or leasing devices and 
accessories. Our contracts with customers may involve multiple performance obligations, which include wireless services, 
wireless devices or a combination thereof, and we allocate the transaction price between each performance obligation based on 
its relative standalone selling price.

Significant Judgments

The most significant judgments affecting the amount and timing of revenue from contracts with our customers include the 
following items:

•  Revenue for service contracts that we assess are not probable of collection is not recognized until the contract is 

completed and cash is received. Collectibility is re-assessed when there is a significant change in facts or 
circumstances. Our assessment of collectibility considers whether we may limit our exposure to credit risk through our 
right to stop transferring additional service in the event the customer is delinquent as well as certain contract terms 
such as down payments that reduce our exposure to credit risk. Customer credit behavior is inherently uncertain. See 
“Receivables and Allowance for Credit Losses”, above, for more discussion on how we assess credit risk.

• 

Promotional EIP bill credits offered to a customer on an equipment sale that are paid over time and are contingent on 
the customer maintaining a service contract may result in an extended service contract based on whether a substantive 
penalty is deemed to exist. Determining whether contingent EIP bill credits result in a substantive termination penalty 
may require significant judgment.

66

•  The identification of distinct performance obligations within our service plans may require significant judgment.

•  Revenue is recorded net of costs paid to another party for performance obligations where we arrange for the other 

party to transfer goods or services to the customer (i.e., when we are acting as an agent). For example, performance 
obligations relating to services provided by third-party content providers where we neither controls a right to the 
content provider’s service nor controls the underlying service itself are presented net because we are acting as an 
agent. The determination of whether we control the underlying service or right to the service prior to our transfer to 
the customer requires, at times, significant judgment.

• 

For transactions where we recognize a significant financing component, judgment is required to determine the 
discount rate. For EIP sales, the discount rate used to adjust the transaction price primarily reflects current market 
interest rates and the estimated credit risk of the customer. Customer credit behavior is inherently uncertain. See 
“Receivables and Allowance for Credit Losses”, above, for more discussion on how we assess credit risk.

•  Our products are generally sold with a right of return, which is accounted for as variable consideration when 

estimating the amount of revenue to recognize. Device return levels are estimated based on the expected value method 
as there are a large number of contracts with similar characteristics and the outcome of each contract is independent of 
the others. Historical return rate experience is a significant input to our expected value methodology.

• 

Sales of equipment to indirect dealers who have been identified as our customer (referred to as the sell-in model) often 
include credits subsequently paid to the dealer as a reimbursement for any discount promotions offered to the end 
consumer. These credits (payments to a customer) are accounted for as variable consideration when estimating the 
amount of revenue to recognize from the sales of equipment to indirect dealers and are estimated based on historical 
experience and other factors, such as expected promotional activity. 

•  The determination of the standalone selling price for contracts that involve more than one performance obligation may 

require significant judgment, such as when the selling price of a good or service is not readily observable.

• 

For capitalized contract costs, determining the amortization period over which such costs are recognized as well as 
assessing the indicators of impairment may require significant judgment. 

Wireless Services Revenue

We generate our wireless services revenues from providing access to, and usage of, our wireless communications network. 
Service revenues also include revenues earned for providing value added services to customers, such as handset insurance 
services. Service contracts are billed monthly either in advance or arrears, or are prepaid. Generally, service revenue is 
recognized as we satisfy our performance obligation to transfer service to our customers. We typically satisfy our stand-ready 
performance obligations, including unlimited wireless services, evenly over the contract term. For usage-based and prepaid 
wireless services, we satisfy our performance obligations when services are rendered.

Revenue for service contracts that we assess are not probable of collection is not recognized until the contract is completed and 
cash is received. Collectibility is re-assessed when there is a significant change in facts or circumstances. Our assessment of 
collectibility considers whether we may limit our exposure to credit risk through our right to stop transferring additional service 
in the event the customer is delinquent.

Consideration payable to a customer is treated as a reduction of the total transaction price, unless the payment is in exchange 
for a distinct good or service, such as certain commissions paid to dealers.

Revenue is recorded net of costs paid to another party for performance obligations where we arrange for the other party to 
transfer goods or services to the customer (i.e., when we are acting as an agent). For example, performance obligations relating 
to services provided by third-party content providers where we neither controls a right to the content provider’s service nor 
controls the underlying service itself are presented net because we are acting as an agent.

Federal Universal Service Fund (“USF”) and other regulatory fees are assessed by various governmental authorities in 
connection with the services we provide to our customers and are included in Cost of services. When we separately bill and 
collect these regulatory fees from customers, they are recorded gross in Total service revenues in our Consolidated Statements 
of Comprehensive Income. For the years ended December 31, 2018, 2017 and 2016, we recorded approximately $161 million, 
$258 million and $409 million, respectively, of USF fees on a gross basis.

We have made an accounting policy election to exclude from the measurement of the transaction price all taxes assessed by a 
governmental authority that are both imposed on and concurrent with a specific revenue-producing transaction and collected by 
us from a customer (for example, sales, use, value added, and some excise taxes).

67

 
Equipment Revenues

We generate equipment revenues from the sale or lease of mobile communication devices and accessories. For performance 
obligations related to equipment contracts, we typically transfer control at a point in time when the device or accessory is 
delivered to, and accepted by, the customer or dealer. We have elected to account for shipping and handling activities that occur 
after control of the related good transfers as fulfillment activities instead of assessing such activities as performance 
obligations. We estimate variable consideration (e.g., device returns or certain payments to indirect dealers) primarily based on 
historical experience. Equipment sales not probable of collection are generally recorded as payments are received. Our 
assessment of collectibility considers contract terms such as down payments that reduce our exposure to credit risk.

We offer certain customers the option to pay for devices and accessories in installments using an EIP. Generally, we recognize 
as a reduction of the total transaction price the effects of a financing component in contracts where customers purchase their 
devices and accessories on an EIP with a term of more than one year, including those financing components that are not 
considered to be significant to the contract. However, we have elected the practical expedient to not recognize the effects of a 
significant financing component for contracts where we expect, at contract inception, that the period between the transfer of a 
performance obligation to a customer and the customer’s payment for that performance obligation will be one year or less.

In addition, for customers who enroll in our JUMP! program, we recognize a liability based on the estimated fair value of the 
specified-price trade-in right guarantee. The fair value of the guarantee is deducted from the transaction price and the remaining 
transaction price is allocated to other elements of the contract, including service and equipment performance obligations. See 
“Guarantee Liabilities” above for further information.

JUMP! On Demand allows customers to lease a device over a period of up to 18 months and upgrade it for a new device up to 
one time per month. To date, all of our leased wireless devices are accounted for as operating leases and estimated contract 
consideration is allocated between lease elements and non-lease elements (such as service and equipment performance 
obligations) based on the relative standalone selling price of each performance obligation in the contract. Lease revenues are 
recorded as equipment revenues and recognized as earned on a straight-line basis over the lease term. Lease revenues on 
contracts not probable of collection are limited to the amount of payments received. See “Property and Equipment” above for 
further information.

Contract Balances

Generally, our devices and service plans are available at standard prices, which are maintained on price lists and published on 
our website and/or within our retail stores.

For contracts that involve more than one product or service that are identified as separate performance obligations, the 
transaction price is allocated to the performance obligations based on their relative standalone selling prices. The standalone 
selling price is the price at which we would sell the good or service separately to a customer and is most commonly evidenced 
by the price at which we sell that good or service separately in similar circumstances and to similar customers.

A contract asset is recorded when revenue is recognized in advance of our right to receive consideration (i.e., we must perform 
additional services in order to receive consideration). Amounts are recorded as receivables when our right to consideration is 
unconditional. When consideration is received, or we have an unconditional right to consideration in advance of delivery of 
goods or services, a contract liability is recorded. The transaction price can include non-refundable upfront fees, which are 
allocated to the identifiable performance obligations.

Contract assets are included in Other current assets and Other assets and contract liabilities are included in Deferred revenue in 
our Consolidated Balance Sheets.

Contract Modifications

Our service contracts allow customers to frequently modify their contracts without incurring penalties in many cases. Each time 
a contract is modified, we evaluate the change in scope or price of the contract to determine if the modification should be 
treated as a separate contract, as if there is a termination of the existing contract and creation of a new contract, or if the 
modification should be considered a change associated with the existing contract. We typically do not have significant impacts 
from contract modifications.

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Contract Costs

We incur certain incremental costs to obtain a contract that we expect to recover, such as sales commissions. We record an asset 
when these incremental costs to obtain a contract are incurred and amortize them on a systematic basis that is consistent with 
the transfer to the customer of the goods or services to which the asset relates.

We amortize deferred costs incurred to obtain service contracts on a straight-line basis over the term of the initial contract and 
anticipated renewal contracts to which the costs relate, currently 24 months. However, we have elected the practical expedient 
permitting expensing of costs to obtain a contract when the expected amortization period is one year or less. 

Incremental costs to obtain equipment contracts (e.g., commissions paid on device and accessory sales) are recognized when 
the equipment is transferred to the customer.

See Note 1 - Summary of Significant Accounting Policies included in our Annual Report on Form 10-K for the year ended 
December 31, 2017 for more discussion regarding the accounting policies that governed revenue recognition prior to January 1, 
2018.

Rent Expense

We have operating leases for cell sites, retail locations, corporate offices and dedicated transportation lines, some of which have 
escalating rentals during the initial lease term and during subsequent optional renewal periods. We recognize rent expense on a 
straight-line basis, over the non-cancelable lease term and renewal periods that are considered reasonably assured at the 
inception of the lease. We consider several factors in assessing whether renewal periods are reasonably assured of being 
exercised, including the continued maturation of our network nationwide, technological advances within the 
telecommunications industry and the availability of alternative sites.

Advertising Expense

We expense the cost of advertising and other promotional expenditures to market our services and products as incurred. For the 
years ended December 31, 2018, 2017 and 2016, advertising expenses included in Selling, general and administrative expenses 
in our Consolidated Statements of Comprehensive Income were $1.7 billion, $1.8 billion and $1.7 billion, respectively.

Income Taxes

Deferred tax assets and liabilities are recognized based on temporary differences between the financial statement and tax bases 
of assets and liabilities using enacted tax rates expected to be in effect when these differences are realized. A valuation 
allowance is recorded when it is more likely than not that some portion or all of a deferred tax asset will not be realized. The 
ultimate realization of a deferred tax asset depends on the ability to generate sufficient taxable income of the appropriate 
character and in the appropriate taxing jurisdictions within the carryforward periods available.

We account for uncertainty in income taxes recognized in the financial statements in accordance with the accounting guidance 
for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. We 
assess whether it is more likely than not that a tax position will be sustained upon examination based on the technical merits of 
the position and adjust the unrecognized tax benefits in light of changes in facts and circumstances, such as changes in tax law, 
interactions with taxing authorities and developments in case law.

Other Comprehensive Income (Loss)

Other comprehensive income (loss) consists of adjustments, net of tax, related to unrealized gains (losses) on cash flow hedges 
and available-for-sale securities. This is reported in AOCI as a separate component of stockholders’ equity until realized in 
earnings.

Stock-Based Compensation

Stock-based compensation cost for stock awards, which include restricted stock units (“RSUs”) and performance-based 
restricted stock units (“PRSUs”), is measured at fair value on the grant date and recognized as expense, net of expected 
forfeitures, over the related service period. The fair value of stock awards is based on the closing price of our common stock on 
the date of grant. RSUs are recognized as expense using the straight-line method. PRSUs are recognized as expense following a 
graded vesting schedule.

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Earnings Per Share

Basic earnings per share is computed by dividing Net income attributable to common stockholders by the weighted-average 
number of common shares outstanding for the period. Diluted earnings per share is computed by giving effect to all potentially 
dilutive common shares outstanding during the period. Potentially dilutive common shares consist of outstanding stock options, 
RSUs and PRSUs, calculated using the treasury stock method, and prior to the conversion of our preferred stock, potentially 
dilutive common shares included mandatory convertible preferred stock calculated using the if-converted method. See 
Note 14 – Earnings Per Share for further information.

Our Board of Directors authorized a share repurchase program during the fourth quarter of 2017 and increased the repurchase 
program in the second quarter of 2018. Repurchased shares are retired and reduce the number of shares issued and outstanding. 
See Note 12 – Repurchases of Common Stock for further information.

Variable Interest Entities

Variable Interest Entities (“VIEs”) are entities which lack sufficient equity to permit the entity to finance its activities without 
additional subordinated financial support from other parties, have equity investors which do not have the ability to make 
significant decisions relating to the entity's operations through voting rights, do not have the obligation to absorb the expected 
losses or do not have the right to receive the residual returns of the entity. The most common type of VIE is a special purpose 
entity (“SPE”). SPEs are commonly used in securitization transactions in order to isolate certain assets and distribute the cash 
flows from those assets to investors. SPEs are generally structured to insulate investors from claims on the SPE’s assets by 
creditors of other entities, including the creditors of the seller of the assets.

The primary beneficiary is required to consolidate the assets and liabilities of the VIE. The primary beneficiary is the party 
which has both the power to direct the activities of an entity that most significantly impact the VIE’s economic performance, 
and through its interests in the VIE, the obligation to absorb losses or the right to receive benefits from the VIE which could 
potentially be significant to the VIE. We consolidate VIEs when we are deemed to be the primary beneficiary or when the VIE 
cannot be deconsolidated.

In assessing which party is the primary beneficiary, all the facts and circumstances are considered, including each party’s role 
in establishing the VIE and its ongoing rights and responsibilities. This assessment includes, first, identifying the activities that 
most significantly impact the VIE’s economic performance, and second, identifying which party, if any, has power over those 
activities. In general, the parties that make the most significant decisions affecting the VIE (such as asset managers and 
servicers) or have the right to unilaterally remove those decision-makers are deemed to have the power to direct the activities of 
a VIE.

Accounting Pronouncements Adopted During the Current Year

Revenue

In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-09, 
“Revenue from Contracts with Customers (Topic 606),” and has since modified the standard with several ASUs (collectively, 
the “new revenue standard”). The new revenue standard requires entities to recognize revenue through the application of a five-
step model, which includes: identification of the contract; identification of the performance obligations; determination of the 
transaction price; allocation of the transaction price to the performance obligations; and recognition of revenue as the entity 
satisfies the performance obligations. We adopted the new revenue standard on January 1, 2018, using the modified 
retrospective method with the cumulative effect of initially applying the guidance recognized at the date of initial application. 
Comparative information has not been restated and continues to be reported under the standards in effect for those periods. We 
have applied the new revenue standard only to contracts not completed as of the date of initial application, referred to as open 
contracts. We have elected the practical expedient that permits an entity to reflect the aggregate effect of all of the 
modifications (on a contract-by-contract basis) that occurred before the date of initial application in determining the transaction 
price, identifying the satisfied and unsatisfied performance obligations, and allocating the transaction price to the performance 
obligations. Electing this practical expedient does not have a significant impact on our financial statements due to the short-
term duration of most of our contracts and the nature of our contract modifications.

We have implemented significant new revenue accounting systems, processes and internal controls over revenue recognition to 
assist us in the application of the new revenue standard.

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Financial Statement Impacts of Applying the New Revenue Standard

The cumulative effect of initially applying the new revenue standard to all open contracts as of January 1, 2018 is as follows:

(in millions)

Assets

Other current assets

Other assets

Liabilities and Stockholders’ Equity

Deferred revenue

Deferred tax liabilities

Accumulated deficit

January 1, 2018

Beginning
Balance

Cumulative
Effect
Adjustment

Beginning
Balance, As
Adjusted

$

$

1,903

$

912

779

$

3,537

(16,074)

$

$

140

150

4

73

213

2,043

1,062

783

3,610

(15,861)

The most significant impacts upon adoption of the new revenue standard on January 1, 2018 include the following items:

•  A deferred contract cost asset of $150 million was recorded at transition in Other assets in our Consolidated Balance 

Sheets for incremental contract acquisition costs paid on open contracts, which consists primarily of commissions paid 
to acquire branded postpaid service contracts; and

•  A contract asset of $140 million was recorded at transition in Other current assets in our Consolidated Balance Sheets 

primarily for contracts with promotional bill credits offered to customers on equipment sales that are paid over time 
and are contingent on the customer maintaining a service contract.

Financial statement results as reported under the new revenue standard as compared to the previous revenue standard for the 
year ended December 31, 2018 are as follows:

(in millions, except per share amounts)

Revenues

Branded postpaid revenues

Branded prepaid revenues

Wholesale revenues

Roaming and other service revenues

Total service revenues

Equipment revenues

Other revenues

Total revenues
Operating expenses

Cost of services, exclusive of depreciation and amortization shown separately below

Cost of equipment sales

Selling, general and administrative

Depreciation and amortization

Total operating expenses

Operating income

Total other expense, net

Income before income taxes

Income tax expense

Net income
Earnings per share

Basic earnings per share

Diluted earnings per share

71

Year Ended December 31, 2018

Previous
Revenue
Standard

New Revenue
Standard

Change

$

20,887

$

20,862

$

9,608

1,183

349

32,027

9,616

1,309

42,952

6,233

12,065

13,257

6,486

38,041

4,911

(1,392)

3,519

(926)

2,593

3.05

3.02

$

$

$

9,598

1,183

349

31,992

10,009

1,309

43,310

6,307

12,047

13,161

6,486

38,001

5,309

(1,392)

3,917

(1,029)

2,888

3.40

3.36

$

$

$

$

$

$

(25)

(10)

—

—

(35)

393

—

358

74

(18)

(96)

—

(40)

398

—

398

(103)

295

0.35

0.34

(in millions)

Assets

Other current assets

Other assets

Liabilities and Stockholders’ Equity

Deferred revenue

Deferred tax liabilities

Accumulated deficit

December 31, 2018

Previous
Revenue
Standard

New Revenue
Standard

Change

$

$

1,625

$

1,676

$

979

1,623

685

$

698

$

4,297

(13,461)

4,472

(12,954)

51

644

13

175

507

The most significant impacts to financial statement results as reported under the new revenue standard as compared to the 
previous revenue standard for the current reporting period are as follows:

•  Under the new revenue standard, certain commissions paid to dealers previously recognized as a reduction to 

Equipment revenues in our Consolidated Statements of Comprehensive Income are now recorded as commission costs 
in Selling, general and administrative expense. 

•  Contract costs capitalized for new contracts accumulated in Other assets in our Consolidated Balance Sheets during 
2018. As a result, there was a net benefit to Operating income in our Consolidated Statements of Comprehensive 
Income during 2018 as capitalization of costs exceeded amortization. As capitalized costs amortize into expense over 
time, the accretive benefit to Operating income is expected to moderate in 2019 and normalize in 2020.

•  Certain promotions previously recognized as a reduction in Equipment revenues in our Consolidated Statements of 

Comprehensive Income are now recorded as a reduction in Service revenues.

•  Certain revenues previously recognized as Equipment revenues in our Consolidated Statements of Comprehensive 

Income are now recorded as Service revenues.

•  Certain contract fulfillment costs have been reclassified to Cost of services in our Consolidated Statements of 

Comprehensive Income from Selling, general and administrative expenses.

•  Wholesale revenues for minimum guaranteed amounts (guarantee shortfall) are recognized when it is probable that a 
reversal of such revenue will not occur, which may impact the timing of recognition as compared to the previous 
standard. 

• 

For contracts with promotional bill credits that are contingent on the customer maintaining a service contract that 
result in an extended service contract, a contract asset is recorded when control of the equipment transfers to the 
customer and is subsequently amortized as a reduction to Total service revenues in our Consolidated Statements of 
Comprehensive Income over the extended contract term.

See disclosures related to Contracts with Customers under the new revenue standard in Note 10 – Revenue from Contracts with 
Customers.

Statement of Cash Flows

On January 1, 2018, we adopted ASU 2016-15, “Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts 
and Cash Payments” (the “new cash flow standard”) which impacted the presentation of our cash flows related to our beneficial 
interests in securitization transactions, which is the deferred purchase price, resulting in a reclassification of cash inflows from 
Operating activities to Investing activities of approximately $5.4 billion, $4.3 billion, and $3.4 billion for the years ended 
December 31, 2018, 2017 and 2016, respectively, in our Consolidated Statements of Cash Flows. The new cash flow standard 
also impacted the presentation of our cash payments for debt prepayment and debt extinguishment costs, resulting in a 
reclassification of cash outflows from Operating activities to Financing activities of $212 million and $188 million for the years 
ended December 31, 2018 and 2017, respectively, in our Consolidated Statements of Cash Flows. There were no cash payments 
for debt prepayment and debt extinguishment costs during the year ended December 31, 2016. We have applied the new cash 
flow standard retrospectively to all periods presented.

Financial Instruments

In January 2016, the FASB issued ASU 2016-01, “Financial Instruments (Topic 825): Recognition and Measurement of 
Financial Assets and Financial Liabilities,” and has since modified the standard in February 2018 with ASU 2018-03, 

72

“Technical Corrections and Improvements to Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement 
of Financial Assets and Financial Liabilities”. The standard addresses certain aspects of recognition, measurement, presentation 
and disclosure of financial instruments. The standard became effective for us, and we adopted the standard, on January 1, 2018. 
The standard requires the impact of adoption to be recorded to retained earnings under a modified retrospective approach, 
resulting in a reclassification of Accumulated other comprehensive income to Accumulated deficit of $8 million.

Income Taxes

In October 2016, the FASB issued ASU 2016-16, “Accounting for Income Taxes (Topic 740): Intra-Entity Transfers of Assets 
Other Than Inventory.” The standard requires that the income tax impact of intra-entity sales and transfers of property, except 
for inventory, be recognized when the transfer occurs. The standard became effective for us, and we adopted the standard, on 
January 1, 2018. The standard requires any deferred taxes not yet recognized on intra-entity transfers to be recorded to retained 
earnings under a modified retrospective approach, resulting in an adjustment to Accumulated deficit of $11 million.

Derivatives and Hedging

In August 2017, the FASB issued ASU 2017-12, “Derivatives and Hedging (Topic 815): Targeted Improvement to Accounting 
for Hedging Activities” (the “new derivatives and hedging standard”). The standard modified the guidance for the designation 
and measurement of qualifying hedging relationships and the presentation of hedge results. We adopted this standard on 
October 1, 2018 and have applied the standard to hedging transactions prospectively.

Accounting Pronouncements Not Yet Adopted

Leases

In February 2016, the FASB issued ASU 2016-02, “Leases (Topic 842),” and has since modified the standard with several 
ASUs (collectively, the “new lease standard”). The standard is effective for us, and we adopted the standard, on January 1, 
2019.

The new lease standard requires most lessees to report a right-of-use asset and a lease liability. The income statement 
recognition is similar to existing lease accounting and is based on lease classification. The new lease standard requires lessees 
and lessors to classify most leases using principles similar to existing lease accounting. For lessors, the new lease standard 
modifies the classification criteria and the accounting for sales-type and direct financing leases. The new lease standard 
provides entities two options for applying the modified retrospective approach, either (1) retrospectively to each prior reporting 
period presented in the financial statements with the cumulative-effect adjustment recognized at the beginning of the earliest 
comparative period presented or (2) retrospectively at the beginning of the period of adoption (January 1, 2019) through a 
cumulative-effect adjustment. We plan to adopt the standard by recognizing and measuring leases at the adoption date with a 
cumulative effect of initially applying the guidance recognized at the date of initial application.

The new standard provides for a number of optional practical expedients in transition. We do not expect to elect the “package 
of practical expedients” and as a result we would be required to reassess under the new standard our prior accounting 
conclusions about lease identification, lease classification and initial direct costs. We do expect to elect the use of hindsight for 
determining the reasonably certain lease term. We do not expect to elect the practical expedient pertaining to land easements as 
it is not applicable to us.

Upon the adoption of the new lease standard entities are required to reassess any previous failed sale-leaseback transactions 
that remain failed as of the effective date of the new standard. This reassessment should consider if a sale would have occurred 
as of the beginning of the reporting period in which the entity applies the new lease standard. Under the new lease standard, a 
sale is assessed using the transfer of control criteria in the new revenue standard. If the revised sale-leaseback guidance criteria 
are met and a sale has occurred as of the effective date, the gain or loss on the sale of the underlying asset is recognized as an 
adjustment to equity and the accounting for the leaseback will follow the transition provisions provided for all other operating 
leases.  

We expect the most significant judgments and impacts upon adoption of the standard to include the following items:

•  Upon adoption on January 1, 2019, we will recognize right-of-use assets and lease liabilities that have not previously 
been recorded. The lease liability for operating leases is based on the net present value of future minimum lease 
payments. The right-of-use asset for operating leases is based on the lease liability adjusted for the reclassification of 
certain balance sheet amounts such as deferred rent, subsequent to re-measurement from the assessment of lease term 

73

described below, and prepaid rent. Deferred and prepaid rent will not be presented separately after the adoption of the 
new lease standard.

•  We expect to elect the use of hindsight in determining the expected lease term for all cell sites and have generally 

concluded to include only payments due for the initial non-cancelable lease term. This assessment of expected lease 
term corresponds to our lease term assessment for new leases and aligns with the payments that have been disclosed as 
lease commitments in prior years. As a result, the average remaining lease term for cell sites has decreased from 
approximately 9 years to 4 years based on lease contracts in effect at transition on January 1, 2019.

•  We are also required to reassess the previously failed sale-leaseback of certain T-Mobile-owned wireless 

communication tower sites and determine whether the transfer of the assets to the tower operator under the 
arrangement met the transfer of control criteria in the new revenue standard and whether a sale should be recognized. 
We are continuing to finalize our assessment of the previously failed sale-leaseback. If we conclude a sale should be 
recognized, upon adoption on January 1, 2019, we would derecognize our existing long-term financial obligation and 
the net book value of the tower-related property and equipment associated with the previously failed sale-leaseback 
transaction. A change in the sale-leaseback accounting conclusion would also result in the recognition of a lease 
liability and right of use asset for the leaseback, decreases in Other revenues and Interest expense and a 
reclassification of certain cash payments from financing outflows to operating outflows in our Consolidated 
Statements of Cash Flows.

•  Excluding the impacts of a potential change in the accounting conclusion around the previously failed sale leaseback, 
the cumulative effects of initially applying the new lease standard on January 1, 2019 and for fiscal year 2019 would 
be as follows:

•  The cumulative effect of initially applying the new lease standard on January 1, 2019 is estimated to be an 

increase in total assets of $8.5 billion to $9.4 billion, an increase in total liabilities of $8.2 billion to $8.9 
billion and a decrease to Accumulated deficit of $300 million to $500 million.

•  The aggregate impact is expected to result in a decrease in Total operating expenses of $190 million to $230 

million and an increase to Net income of $140 million to $180 million in fiscal year 2019.

• 

Including the impacts that would result from a change in the accounting conclusion on the previously failed sale-
leaseback, the cumulative effects of initially applying the new lease standard on January 1, 2019 and for fiscal year 
2019 would be as follows:

•  The cumulative effect of initially applying the new lease standard on January 1, 2019 is estimated to be an 
increase in total assets of $9.1 billion to $10.0 billion, an increase in total liabilities of $7.0 billion to $7.5 
billion and a decrease to Accumulated deficit of $2.1 billion to $2.5 billion.

•  The aggregate impact is expected to result in a decrease in Other revenues of $230 million to $250 million, a 
decrease in Interest expense of $200 million to $240 million, a decrease in Total operating expenses of $220 
million to $260 million and an increase to Net income of $140 million to $180 million in fiscal year 2019. 

•  The expected impact on our Consolidated Statements of Cash Flows in fiscal year 2019 is a decrease in Net 
cash provided by operating activities of $20 million to $40 million and a decrease in Net cash used in 
financing activities of $20 million to $40 million.

The new lease standard provides practical expedients and policy elections for an entity’s ongoing accounting. We currently 
expect to elect the practical expedient to not separate lease and non-lease components for all of our leases. We do not expect to 
elect the short-term lease recognition exemption, which includes the recognition of right-of-use assets and lease liabilities for 
existing short-term leases at transition.  

For arrangements where we are the lessor, we do not expect the adoption of the new lease standard to have a material impact on 
our financial statements as all of our leases are operating leases. The new lease standard provides a practical expedient for 
lessors in which the lessor may elect, by class of underlying asset, to not separate non-lease components from the associated 
lease component and, instead, to account for these components as a single component if both of the following are met: (1) the 
timing and pattern of transfer of the non-lease component(s) and associated lease component are the same and (2) the lease 
component, if accounted for separately, would be classified as an operating lease. We do not expect to elect this expedient for 
leased wireless devices under our JUMP! On Demand program. 
74

We are in the process of implementing significant new lease accounting systems and are updating processes and implementing 
new internal controls over lease recognition to assist in the application of the new lease standard.

Financial Instruments

In June 2016, the FASB issued ASU 2016-13, “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit 
Losses on Financial Instruments.” In November 2018, the FASB issued ASU 2018-19, “Codification Improvements to Topic 
326, Financial Instruments-Credit Losses,” which amends the scope and transition requirements of ASU 2016-13. The standard 
requires a financial asset (or a group of financial assets) measured at amortized cost basis to be presented at the net amount 
expected to be collected. The measurement of expected credit losses is based on relevant information about past events, 
including historical experience, current conditions and reasonable and supportable forecasts that affect the collectibility of the 
reported amount. The standard will become effective for us beginning January 1, 2020 and will require a cumulative-effect 
adjustment to Accumulated deficit as of the beginning of the first reporting period in which the guidance is effective (that is, a 
modified-retrospective approach). Early adoption is permitted for us as of January 1, 2019. We are currently evaluating the 
impact this guidance will have on our Consolidated Financial Statements and the timing of adoption.

Cloud Computing Arrangements

In August 2018, the FASB issued ASU 2018-15, “Intangibles - Goodwill and Other - Internal-Use Software (Topic 350): 
Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That is a Service Contract.” 
The standard aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service 
contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. The 
standard will become effective for us beginning January 1, 2020 and can be applied either retrospectively or prospectively to all 
implementation costs incurred after the date of adoption. Early adoption is permitted for us at any time. We are currently 
evaluating the impact this guidance will have on our Consolidated Financial Statements and the timing of adoption.

Other recent accounting pronouncements issued by the FASB (including its Emerging Issues Task Force), the American 
Institute of Certified Public Accountants, and the Securities and Exchange Commission (the “SEC”) did not have, or are not 
believed by management to have, a significant impact on our present or future Consolidated Financial Statements.

Note 2 – Business Combinations

Proposed Sprint Transactions

On April 29, 2018, we entered into a Business Combination Agreement to merge with Sprint in an all-stock transaction at a 
fixed exchange ratio of 0.10256 shares of T-Mobile common stock for each share of Sprint common stock, or 9.75 shares of 
Sprint common stock for each share of T-Mobile common stock (the “Merger”). The combined company will be named “T-
Mobile” and, as a result of the Merger, is expected to be able to rapidly launch a nationwide 5G network, accelerate innovation 
and increase competition in the U.S. wireless, video and broadband industries. Neither T-Mobile nor Sprint on its own could 
generate comparable benefits to consumers. 

The Transactions have been approved by the boards of directors of T-Mobile and Sprint and the required approvals of each of 
T-Mobile and Sprint have been obtained. Immediately following the Merger, it is anticipated that Deutsche Telekom (“DT”) 
and SoftBank Group Corp. will hold, directly or indirectly, on a fully diluted basis, approximately 41.7% and 27.4%, 
respectively, of the outstanding T-Mobile common stock, with the remaining approximately 30.9% of the outstanding T-Mobile 
common stock held by other stockholders, based on closing share prices and certain other assumptions as of December 31, 
2018. 

In connection with the entry into the Business Combination Agreement, T-Mobile USA, Inc. (“T-Mobile USA”) entered into a 
commitment letter, dated as of April 29, 2018 (as amended and restated on May 15, 2018, the “Commitment Letter”). The 
funding of the debt facilities provided for in the Commitment Letter is subject to the satisfaction of the conditions set forth 
therein, including consummation of the Merger. The proceeds of the debt financing provided for in the Commitment Letter will 
be used to refinance certain existing debt of us, Sprint and our and Sprint’s respective subsidiaries and for post-closing working 
capital needs of the combined company. See Note 8 – Debt for further information.

In connection with the entry into the Business Combination Agreement, DT and T-Mobile USA entered into a financing matters 
agreement, dated as of April 29, 2018 (the “Financing Matters Agreement”). See Note 8 – Debt for further information.

75

On May 18, 2018, under the terms and conditions described in the Consent Solicitation Statement dated as of May 14, 2018, 
(the “Consent Solicitation Statement”) we obtained consents necessary to effect certain amendments to certain existing debt of 
us and our subsidiaries. In connection with receiving the requisite consents, we made upfront payments to third-party note 
holders of approximately $31 million during 2018. These payments were recognized as a reduction to Long-term debt. We paid 
third-party bank fees associated with obtaining the requisite consents of $6 million during 2018, which we recognized as 
Selling, general and administrative expenses in our Consolidated Statements of Comprehensive Income.

Under the terms of the Business Combination Agreement, Sprint may be required to reimburse us for 33% of the upfront 
consent and related bank fees we paid, or $14 million, if the Business Combination Agreement is terminated. There was no 
reimbursement accrued as of December 31, 2018. On May 18, 2018, Sprint also obtained consents necessary to effect certain 
amendments to certain existing debt of it and its subsidiaries. In connection with receiving the requisite consents, Sprint made 
upfront payments to third-party note holders and related bank fees of $241 million during 2018. Under the terms of the 
Business Combination Agreement, we may also be required to reimburse Sprint for 67% of the upfront consent and related 
bank fees it paid, or $161 million, if the Business Combination Agreement is terminated. There was no fee accrued as of 
December 31, 2018. 

For the year ended December 31, 2018, we recognized costs associated with the Transactions of $196 million. These costs 
generally included bank fees associated with obtaining the requisite consents on debt to third parties, consulting and legal fees 
and were recognized as Selling, general and administrative expenses in our Consolidated Statements of Comprehensive 
Income.

The consummation of the Transactions is subject to regulatory approvals and certain other customary closing conditions. We 
expect to receive regulatory approval in the first half of 2019. The Business Combination Agreement contains certain 
termination rights for both Sprint and us. If we terminate the Business Combination Agreement in connection with a failure to 
satisfy the closing condition related to specified minimum credit ratings for the combined company on the closing date of the 
Merger (after giving effect to the Merger) from at least two of the three credit rating agencies, then in certain circumstances, we 
may be required to pay Sprint an amount equal to $600 million.

On June 18, 2018, we filed the Public Interest Statement and applications for approval of our Merger with Sprint with the FCC. 
On July 18, 2018, the FCC issued a Public Notice formally accepting our applications and establishing a period for public 
comment. The FCC is reviewing the modeling provided by us and Sprint under its informal 180-day transaction shot clock. On 
July 30, 2018, we filed a registration statement on Form S-4 with the SEC related to the Merger. The registration statement 
became effective on October 29, 2018.

Acquisition of Layer3 TV

On January 22, 2018, we completed our acquisition of television innovator Layer3 TV, Inc. (“Layer3 TV”) for cash 
consideration of $318 million. The consideration included a $5 million payment that was made after the closing date in the 
second quarter of 2018. Upon closing of the transaction, Layer3 TV became a wholly-owned consolidated subsidiary. Layer3 
TV acquires and distributes digital entertainment programming primarily through the internet to residential customers, offering 
direct to home digital television and multi-channel video programming distribution services. This transaction represented an 
opportunity to acquire a complementary service to our existing wireless service to advance our video strategy. 

We accounted for the purchase of Layer3 TV as a business combination. Costs related to this acquisition were immaterial to our 
Consolidated Statements of Comprehensive Income. The grant-date fair value of cash-based and share-based incentive 
compensation awards attributable to post-combination services was approximately $37 million.

76

The following table shows the amounts recognized as of the acquisition date for each major class of assets acquired and 
liabilities assumed and the resultant purchase price allocation:

(in millions)

Assets acquired

Cash and cash equivalents

Other current assets

Property and equipment, net

Intangible assets

Goodwill

Deferred tax assets

Total assets acquired

Liabilities assumed

Accounts payable and accrued liabilities

Short-term debt

Total liabilities assumed

Total consideration transferred

January 22,
2018

$

$

$

$

2

14

11

100

218

2

347

27

2

29

318

We recognized a liability of $21 million within Accounts payable and accrued liabilities in our Consolidated Balance Sheets and 
an associated indemnification asset of $12 million in our Consolidated Balance Sheets related to minimum commitments under 
acquired content agreements. As of December 31, 2018, the $12 million had been received. 

Goodwill of $218 million is calculated as the excess of the purchase price paid over the net assets acquired. The goodwill recorded 
as part of the Layer3 TV acquisition primarily reflects industry knowledge of the retained management team, as well as intangible 
assets that do not qualify for separate recognition. None of the goodwill is deductible for tax purposes. See Note 6 – Goodwill, 
Spectrum Licenses and Other Intangible Assets for further information.

As part of the transaction, we acquired an identifiable intangible asset of developed technology with an estimated fair value of 
$100 million, which is being amortized on a straight-line basis over a useful life of 5 years.

The financial results from the acquisition of Layer3 TV since the closing date through December 31, 2018 were not material to 
our Consolidated Statements of Comprehensive Income.

Acquisition of Iowa Wireless

On January 1, 2018 (the “IWS Acquisition Date”), we closed on our previously announced Unit Purchase Agreement to acquire 
the remaining equity in Iowa Wireless Services, LLC (“IWS”), a 54% owned unconsolidated subsidiary, for a purchase price of 
$25 million. We accounted for our acquisition of IWS as a business combination. 

Prior to the IWS Acquisition Date, we accounted for our previously-held investment in IWS under the equity method as we had 
significant influence, but not control. Authoritative guidance on accounting for business combinations requires that an acquirer 
re-measure its previously held equity interest in the acquiree at its acquisition date fair value and recognize the resulting gain or 
loss in earnings. As such, we valued our previously held equity interest in IWS at $56 million as of the IWS Acquisition Date 
and recognized a gain of $15 million.

The following table highlights the consideration transferred, the fair value of our previously held equity interest and bargain 
purchase:

(in millions)

Consideration transferred:

Cash paid

Previously held equity interest:

Acquisition date fair value of previously held equity interest

Bargain purchase gain

Net assets acquired

77

January 1,
2018

$

$

25

56

25

106

As part of the acquisition of IWS, we recognized a bargain purchase gain of approximately $25 million, which represents the 
fair value of the identifiable net assets acquired, primarily IWS spectrum licenses, in excess of the purchase price and fair value 
of our previously held equity interest. We were in a favorable position to acquire the remaining shares of IWS as a result of our 
previously held 54% equity interest in IWS, an unprofitable business with valuable spectrum holdings. 

The following table shows the amounts recognized as of the IWS Acquisition Date for each major class of assets acquired and 
liabilities assumed and the resultant purchase price allocation:

(in millions)

Assets acquired

Current assets

Cash and cash equivalents

Accounts receivable, net

Equipment installment plan receivables, net

Inventories

Other current assets

Current assets, total

Property and equipment, net

Spectrum licenses

Total assets acquired

Liabilities assumed

Accounts payable and accrued liabilities

Deferred revenue

Current liabilities, total

Deferred tax liabilities

Other long-term liabilities

Total long-term liabilities

Net assets acquired

January 1,
2018

$

$

$

$

3

6

3

1

2

15

36

87

138

6

2

8

17

7

24

106

We included both the gain on our previously held equity interest in IWS and the bargain purchase gain within Other income 
(expense), net for the year ended December 31, 2018.

Pro Forma Information

The acquisitions of Layer3 TV and IWS were not material to our prior period consolidated results on a pro forma basis.

Note 3 – Receivables and Allowance for Credit Losses

Our portfolio of receivables is comprised of two portfolio segments, accounts receivable and EIP receivables. Our accounts 
receivable segment primarily consists of amounts currently due from customers, including service and leased device 
receivables, other carriers and third-party retail channels.

Based upon customer credit profiles, we classify the EIP receivables segment into two customer classes of “Prime” and 
“Subprime.” Prime customer receivables are those with lower delinquency risk and Subprime customer receivables are those 
with higher delinquency risk. Customers may be required to make a down payment on their equipment purchases. In addition, 
certain customers within the Subprime category are required to pay an advance deposit.

To determine a customer’s credit profile, we use a proprietary credit scoring model that measures the credit quality of a 
customer using several factors, such as credit bureau information, consumer credit risk scores and service and device plan 
characteristics.

78

The following table summarizes the EIP receivables, including imputed discounts and related allowance for credit losses:

(in millions)

EIP receivables, gross

Unamortized imputed discount

EIP receivables, net of unamortized imputed discount

Allowance for credit losses

EIP receivables, net

Classified on the balance sheet as:

Equipment installment plan receivables, net

Equipment installment plan receivables due after one year, net

EIP receivables, net

December 31,
2018

December 31,
2017

$

$

$

$

4,534

$

(330)

4,204

(119)

4,085

2,538

1,547

4,085

$

$

$

3,960

(264)

3,696

(132)

3,564

2,290

1,274

3,564

To determine the appropriate level of the allowance for credit losses, we consider a number of credit quality indicators, 
including historical credit losses and timely payment experience as well as current collection trends such as write-off frequency 
and severity, aging of the receivable portfolio, credit quality of the customer base and other qualitative factors such as macro-
economic conditions.

We write off account balances if collection efforts are unsuccessful and the receivable balance is deemed uncollectible, based 
on customer credit quality and the aging of the receivable.

For EIP receivables, subsequent to the initial determination of the imputed discount, we assess the need for and, if necessary, 
recognize an allowance for credit losses to the extent the amount of estimated probable losses on the gross EIP receivable 
balances exceed the remaining unamortized imputed discount balances.

The EIP receivables had weighted average effective imputed interest rates of 10.0%, 9.6% and 9.0% as of December 31, 2018, 
2017 and 2016, respectively.

Activity for the years ended December 31, 2018, 2017 and 2016 in the allowance for credit losses and unamortized imputed 
discount balances for the accounts receivable and EIP receivables segments were as follows:

December 31, 2018

December 31, 2017

December 31, 2016

(in millions)

Accounts
Receivable
Allowance

EIP
Receivables
Allowance

Total

Accounts
Receivable
Allowance

EIP
Receivables
Allowance

Total

Accounts
Receivable
Allowance

EIP
Receivables
Allowance

Total

Allowance for credit
losses and imputed
discount, beginning of
period

$

Bad debt expense

Write-offs, net of
recoveries

Change in imputed
discount on short-term
and long-term EIP
receivables

Impact on the imputed
discount from sales of
EIP receivables

Allowance for
credit losses and
imputed discount,
end of period

$

86

69

$

396

228

$

482

297

$

102

104

$

316

284

$

418

388

$

116

227

$

333

250

449

477

(88)

(240)

(328)

(120)

(273)

(393)

(241)

(277)

(518)

N/A

N/A

250

250

N/A

252

252

N/A

186

186

(185)

(185)

N/A

(183)

(183)

N/A

(176)

(176)

$

67

$

449

$

516

$

86

$

396

$

482

$

102

$

316

$

418

79

Management considers the aging of receivables to be an important credit indicator. The following table provides delinquency 
status for the unpaid principal balance for receivables within the EIP portfolio segment, which we actively monitor as part of 
our current credit risk management practices and policies:

December 31, 2018

December 31, 2017

Prime

Subprime

Total EIP
Receivables,
gross

Prime

Subprime

Total EIP
Receivables,
gross

1,987

$

2,446

$

4,433

$

1,727

$

2,133

$

3,860

15

6

7

32

19

22

47

25

29

17

6

8

29

16

24

46

22

32

2,015

$

2,519

$

4,534

$

1,758

$

2,202

$

3,960

$

$

(in millions)

Current - 30 days past due

31 - 60 days past due

61 - 90 days past due

More than 90 days past due

Total receivables, gross

Note 4 – Sales of Certain Receivables 

We have entered into transactions to sell certain service and EIP receivables. The transactions, including our continuing 
involvement with the sold receivables and the respective impacts to our Consolidated Financial Statements, are described 
below.

Sales of Service Accounts Receivable

Overview of the Transaction

In 2014, we entered into an arrangement to sell certain service accounts receivable on a revolving basis and in November 2016, 
the arrangement was amended to increase the maximum funding commitment to $950 million (the “service receivable sale 
arrangement”) and extend the scheduled expiration date to March 2018. In February 2018, the service receivable sale 
arrangement was amended and restated to extend the scheduled expiration date to March 2019. In November 2018, the service 
receivable sale arrangement was again amended to extend the maturity of certain third-party credit support under the 
arrangement until March 2019. As of December 31, 2018 and 2017, the service receivable sale arrangement provided funding 
of $774 million and $880 million, respectively. Sales of receivables occur daily and are settled on a monthly basis. The 
receivables consist of service charges currently due from customers and are short-term in nature.

In connection with the service receivable sale arrangement, we formed a wholly-owned subsidiary, which qualifies as a 
bankruptcy remote entity, to sell service accounts receivable (the “Service BRE”). The Service BRE does not qualify as a VIE, 
and due to the significant level of control we exercise over the entity, it is consolidated. Pursuant to the service receivable sale 
arrangement, certain of our wholly-owned subsidiaries transfer selected receivables to the Service BRE. The Service BRE then 
sells the receivables to an unaffiliated entity (the “Service VIE”), which was established to facilitate the sale of beneficial 
ownership interests in the receivables to certain third parties.

Variable Interest Entity

We determined that the Service VIE qualifies as a VIE as it lacks sufficient equity to finance its activities. We have a variable 
interest in the Service VIE but are not the primary beneficiary as we lack the power to direct the activities that most 
significantly impact the Service VIE’s economic performance. Those activities include committing the Service VIE to legal 
agreements to purchase or sell assets, selecting which receivables are purchased in the service receivable sale arrangement, 
determining whether the Service VIE will sell interests in the purchased service receivables to other parties, funding of the 
entity and servicing of receivables. We do not hold the power to direct the key decisions underlying these activities. For 
example, while we act as the servicer of the sold receivables, which is considered a significant activity of the Service VIE, we 
are acting as an agent in our capacity as the servicer and the counterparty to the service receivable sale arrangement has the 
ability to remove us as the servicing agent of the receivables at will with no recourse available to us. As we have determined we 
are not the primary beneficiary, the balances and results of the Service VIE are not included in our Consolidated Financial 
Statements.

80

The following table summarizes the carrying amounts and classification of assets, which consists primarily of the deferred 
purchase price and liabilities included in our Consolidated Balance Sheets that relate to our variable interest in the Service VIE:

(in millions)

Other current assets

Accounts payable and accrued liabilities

Other current liabilities

Sales of EIP Receivables

Overview of the Transaction

December 31,
2018

December 31,
2017

$

339

$

59

149

236

25

180

In 2015, we entered into an arrangement to sell certain EIP accounts receivable on a revolving basis. In August 2017, the EIP 
sale arrangement was amended to reduce the maximum funding commitment to $1.2 billion (the “EIP sale arrangement”) and 
extend the scheduled expiration date to November 2018. In December 2017, the EIP sale arrangement was again amended to 
increase the maximum funding commitment to $1.3 billion. In October 2018, we amended and restated the EIP sale 
arrangement to, among other things, extend the scheduled expiration date to November 2020 and expand the types of EIP 
receivables that may be sold. In December 2018, we amended the EIP sale arrangement to increase the term of EIP accounts 
receivables relating to handset devices that may be sold in the EIP sale arrangement to expand the eligibility criteria for longer 
tenor EIP loans.

As of both December 31, 2018 and 2017, the EIP sale arrangement provided funding of $1.3 billion. Sales of EIP receivables 
occur daily and are settled on a monthly basis. 

In connection with this EIP sale arrangement, we formed a wholly-owned subsidiary, which qualifies as a bankruptcy remote 
entity (the “EIP BRE”). Pursuant to the EIP sale arrangement, our wholly-owned subsidiary transfers selected receivables to the 
EIP BRE. The EIP BRE then sells the receivables to a non-consolidated and unaffiliated third-party entity for which we do not 
exercise any level of control, nor does the third-party entity qualify as a VIE.

Variable Interest Entity

We determined that the EIP BRE is a VIE as its equity investment at risk lacks the obligation to absorb a certain portion of its 
expected losses. We have a variable interest in the EIP BRE and determined that we are the primary beneficiary based on our 
ability to direct the activities which most significantly impact the EIP BRE’s economic performance. Those activities include 
selecting which receivables are transferred into the EIP BRE and sold in the EIP sale arrangement and funding of the EIP BRE. 
Additionally, our equity interest in the EIP BRE obligates us to absorb losses and gives us the right to receive benefits from the 
EIP BRE that could potentially be significant to the EIP BRE. Accordingly, we include the balances and results of operations of 
the EIP BRE in our Consolidated Financial Statements.

The following table summarizes the carrying amounts and classification of assets, which consists primarily of the deferred 
purchase price and liabilities included in our Consolidated Balance Sheets that relate to the EIP BRE:

(in millions)

Other current assets

Other assets

Other long-term liabilities

December 31,
2018

December 31,
2017

$

321

$

88

22

403

109

3

In addition, the EIP BRE is a separate legal entity with its own separate creditors who will be entitled, prior to any liquidation 
of the EIP BRE, to be satisfied prior to any value in the EIP BRE becoming available to us. Accordingly, the assets of the EIP 
BRE may not be used to settle our general obligations and creditors of the EIP BRE have limited recourse to our general credit.

81

Sales of Receivables

The transfers of service receivables and EIP receivables to the non-consolidated entities are accounted for as sales of financial 
assets. Once identified for sale, the receivable is recorded at the lower of cost or fair value. Upon sale, we derecognize the net 
carrying amount of the receivables. 

We recognize the cash proceeds received upon sale in Net cash provided by operating activities in our Consolidated Statements 
of Cash Flows. We recognize proceeds net of the deferred purchase price, consisting of a receivable from the purchasers that 
entitles us to certain collections on the receivables. We recognize the collection of the deferred purchase price in Net cash used 
in investing activities in our Consolidated Statements of Cash Flows as Proceeds related to beneficial interests in securitization 
transactions.

The deferred purchase price represents a financial asset that is primarily tied to the creditworthiness of the customers and which 
can be settled in such a way that we may not recover substantially all of our recorded investment, due to default by the 
customers on the underlying receivables. We elected, at inception, to measure the deferred purchase price at fair value with 
changes in fair value included in Selling, general and administrative expense in our Consolidated Statements of Comprehensive 
Income. The fair value of the deferred purchase price is determined based on a discounted cash flow model which uses 
primarily unobservable inputs (Level 3 inputs), including customer default rates. As of December 31, 2018 and 2017, our 
deferred purchase price related to the sales of service receivables and EIP receivables was $746 million and $745 million, 
respectively.

The following table summarizes the impacts of the sale of certain service receivables and EIP receivables in our Consolidated 
Balance Sheets:

(in millions)

Derecognized net service receivables and EIP receivables

Other current assets

of which, deferred purchase price

Other long-term assets

of which, deferred purchase price

Accounts payable and accrued liabilities

Other current liabilities

Other long-term liabilities

Net cash proceeds since inception

Of which:

Change in net cash proceeds during the year-to-date period

Net cash proceeds funded by reinvested collections

December 31,
2018

December 31,
2017

$

2,577

$

2,725

660

658

88

88

59

149

22

1,879

(179)

2,058

639

636

109

109

25

180

3

2,058

28

2,030

We recognized losses from sales of receivables, including adjustments to the receivables’ fair values and changes in fair value 
of the deferred purchase price, of $157 million, $299 million and $228 million for the years ended December 31, 2018, 2017 
and 2016, respectively, in Selling, general and administrative expense in our Consolidated Statements of Comprehensive 
Income. 

Continuing Involvement

Pursuant to the sale arrangements described above, we have continuing involvement with the service receivables and EIP 
receivables we sell as we service the receivables and are required to repurchase certain receivables, including ineligible 
receivables, aged receivables and receivables where write-off is imminent. We continue to service the customers and their 
related receivables, including facilitating customer payment collection, in exchange for a monthly servicing fee. As the 
receivables are sold on a revolving basis, the customer payment collections on sold receivables may be reinvested in new 
receivable sales. While servicing the receivables, we apply the same policies and procedures to the sold receivables as we apply 
to our owned receivables, and we continue to maintain normal relationships with our customers. Pursuant to the EIP sale 
arrangement, under certain circumstances, we are required to deposit cash or replacement EIP receivables primarily for 
contracts terminated by customers under our JUMP! Program.

In addition, we have continuing involvement with the sold receivables as we may be responsible for absorbing additional credit 
losses pursuant to the sale arrangements. Our maximum exposure to loss related to the involvement with the service receivables 

82

and EIP receivables sold under the sale arrangements was $1.2 billion as of December 31, 2018. The maximum exposure to 
loss, which is a required disclosure under GAAP, represents an estimated loss that would be incurred under severe, hypothetical 
circumstances whereby we would not receive the deferred purchase price portion of the contractual proceeds withheld by the 
purchasers and would also be required to repurchase the maximum amount of receivables pursuant to the sale arrangements 
without consideration for any recovery. As we believe the probability of these circumstances occurring is remote, the maximum 
exposure to loss is not an indication of our expected loss.

Note 5 – Property and Equipment 

The components of property and equipment were as follows:

(in millions)

Buildings and equipment

Wireless communications systems

Leasehold improvements

Capitalized software

Leased devices

Construction in progress

Accumulated depreciation and amortization

Property and equipment, net

Useful Lives

December 31,
2018

December 31,
2017

Up to 40 years

$

2,423

$

Up to 20 years

Up to 12 years

Up to 10 years

Up to 18 months

35,282

1,299

11,712

1,164

2,776

(31,297)

$

23,359

$

2,066

32,706

1,182

10,563

1,209

1,771

(27,301)

22,196

Wireless communication systems include capital lease agreements for network equipment with varying expiration terms 
through 2033. Capital lease assets and accumulated amortization were $3.1 billion and $867 million, and $2.4 billion and $533 
million, as of December 31, 2018 and 2017, respectively.

We capitalize interest associated with the acquisition or construction of certain property and equipment and spectrum intangible 
assets. We recognized capitalized interest of $362 million, $136 million and $142 million for the years ended December 31, 
2018, 2017 and 2016, respectively.

The components of leased wireless devices under our JUMP! On Demand program were as follows:

(in millions)

Leased wireless devices, gross

Accumulated depreciation

Leased wireless devices, net

December 31,
2018

December 31,
2017

$

$

1,159

(622)

537

$

$

1,209

(417)

792

Future minimum payments expected to be received over the lease term related to the leased wireless devices, which exclude 
optional residual buy-out amounts at the end of the lease term, are summarized below:

(in millions)

Year Ended December 31,

2019

2020

Total

Total

$

$

419

59

478

Total depreciation expense relating to property and equipment was $6.4 billion, $5.8 billion and $6.0 billion for the years ended 
December 31, 2018, 2017 and 2016, respectively. Included in the total depreciation expense for the years ended December 31, 
2018, 2017 and 2016 was $940 million, $1.0 billion and $1.5 billion, respectively, related to leased wireless devices.

For the years ended December 31, 2018, 2017 and 2016, we recorded additional depreciation expense of $60 million, $63 
million and $101 million, respectively, as a result of adjustments to useful lives of network equipment expected to be replaced 
in connection with our network transformation and decommissioning the MetroPCS CDMA network and redundant network 
cell sites.

Asset retirement obligations are primarily for certain legal obligations to remediate leased property on which our network 
infrastructure and administrative assets are located.

83

Activity in our asset retirement obligations was as follows:

(in millions)

Asset retirement obligations, beginning of year

Liabilities incurred

Liabilities settled

Accretion expense

Changes in estimated cash flows

Asset retirement obligations, end of year

Classified on the balance sheet as:

Other current liabilities

Other long-term liabilities

Asset retirement obligations

December 31,
2018

December 31,
2017

$

$

$

$

562

$

26

(9)

30

—

609

$

— $

609

609

$

539

25

(16)

27

(13)

562

3

559

562

The corresponding assets, net of accumulated depreciation, related to asset retirement obligations were $194 million and $220 
million as of December 31, 2018 and 2017, respectively.

Note 6 – Goodwill, Spectrum License Transactions and Other Intangible Assets

Goodwill

The changes in the carrying amount of goodwill for the years ended December 31, 2018 and 2017 are as follows:

(in millions)

Historical goodwill

Accumulated impairment losses at December 31, 2017

Balance as of December 31, 2017

Goodwill from acquisition of Layer3 TV

Balance as of December 31, 2018

Accumulated impairment losses at December 31, 2018

Goodwill

12,449

(10,766)

1,683

218

1,901

(10,766)

$

$

$

On January 22, 2018, we completed our acquisition of Layer3 TV. This purchase was accounted for as a business combination 
resulting in $218 million in goodwill. Layer3 TV is a separate reporting unit and the acquired goodwill is tested for impairment 
at this level. See Note 2 – Business Combinations for further information.

Spectrum Licenses

The following table summarizes our spectrum license activity for the years ended December 31, 2018 and 2017:

(in millions)

Spectrum licenses, beginning of year

Spectrum license acquisitions

Spectrum licenses transferred to held for sale

Costs to clear spectrum

Spectrum licenses, end of year

2018

2017

35,366

$

138

(1)

56

27,014

8,599

(271)

24

35,559

$

35,366

$

$

We had the following spectrum license transactions during 2018:

•  We recorded spectrum licenses received as part of our acquisition of the remaining equity interest in IWS at their 

estimated fair value of approximately $87 million. See Note 2 – Business Combinations for further information.

84

 
•  We closed on multiple spectrum purchase agreements in which we acquired total spectrum licenses of approximately 

$50 million for cash consideration. 

• 

In September 2018, we signed a reciprocal long-term lease agreement with Sprint in which both parties have the right 
to use a portion of spectrum owned by the other party. This executory agreement does not qualify as an acquisition of 
spectrum licenses, and we have not capitalized amounts related to the lease. The reciprocal long-term lease is a distinct 
transaction from the Merger. See Note 15 – Commitments and Contingencies for further information.

We had the following spectrum license transactions during 2017:

• 

• 

• 

• 

• 

In March 2017, we closed on an agreement with a third party for the exchange of certain AWS and PCS spectrum 
licenses. Upon closing of the transaction, we recorded the spectrum licenses received at their estimated fair value of 
approximately $123 million and recognized a gain of $37 million included in Gains on disposal of spectrum licenses 
in our Consolidated Statements of Comprehensive Income.

In April 2017, the FCC announced that we were the winning bidder of 1,525 licenses in the 600 MHz spectrum 
auction for an aggregate price of $8.0 billion. At inception of the auction in June 2016, we deposited $2.2 billion with 
the FCC which, based on the outcome of the auction, was sufficient to cover our down payment obligation due in 
April 2017. In May 2017, we paid the FCC the remaining $5.8 billion of the purchase price using cash reserves and by 
issuing debt to Deutsche Telekom AG (“DT”), our majority stockholder, pursuant to existing purchase commitments.
The licenses are included in Spectrum licenses as of December 31, 2017, in our Consolidated Balance Sheets. We 
began deployment of these licenses on our network in the third quarter of 2017.

In September 2017, we closed on an agreement with a third party for the exchange of certain AWS and PCS spectrum 
licenses. Upon closing of the transaction, we recorded the spectrum licenses received at their estimated fair value of 
approximately $115 million and recognized a gain of $29 million included in Gains on disposal of spectrum licenses 
in our Consolidated Statements of Comprehensive Income.

In September 2017, we entered into a Unit Purchase Agreement (“UPA”) to acquire the remaining equity in Iowa 
Wireless Services, LLC (“IWS”), a 54% owned unconsolidated subsidiary, for a purchase price of $25 million. On 
January 1, 2018, we closed on the purchase agreement and received the IWS spectrum licenses, among other assets. 
As of December 31, 2017, we accounted for our existing investment in IWS under the equity method as we had 
significant influence, but not control. 

In December 2017, we closed on an agreement with a third party for the exchange of certain AWS and PCS spectrum 
licenses. Upon closing of the transaction, we recorded the spectrum licenses received at their estimated fair value of 
approximately $352 million and recognized a gain of $168 million included in Gains on disposal of spectrum licenses 
in our Consolidated Statements of Comprehensive Income.

Goodwill and Other Intangible Assets Impairment Assessments 

Our impairment assessment of goodwill and other indefinite-lived intangible assets (spectrum licenses) resulted in no 
impairment as of December 31, 2018 and 2017.

Other Intangible Assets

The components of Other intangible assets were as follows:

(in millions)

Customer lists

Useful Lives

Up to 6 years

Trademarks and patents

Up to 19 years

Other

Up to 28 years

Other intangible assets

$

$

December 31, 2018

December 31, 2017

Gross
Amount

Accumulated
Amortization

Net Amount

Gross
Amount

Accumulated
Amortization

Net Amount

1,104

$

(1,086) $

312

149

(225)

(56)

18

87

93

$

1,104

$

(1,016) $

307

49

(192)

(35)

1,565

$

(1,367) $

198

$

1,460

$

(1,243) $

88

115

14

217

Amortization expense for intangible assets subject to amortization was $124 million, $163 million and $220 million for the 
years ended December 31, 2018, 2017 and 2016, respectively.

85

The estimated aggregate future amortization expense for intangible assets subject to amortization are summarized below:

(in millions)

Year Ending December 31,

2019

2020

2021

2022

2023

Thereafter

Total

Note 7 – Fair Value Measurements

Estimated
Future
Amortization

$

$

73

55

35

25

6

4

198

The carrying values of Cash and cash equivalents, Accounts receivable, Accounts receivable from affiliates, Accounts payable 
and accrued liabilities, and borrowings under our revolving credit facility with DT, our majority stockholder, approximate fair 
value due to the short-term maturities of these instruments.

Derivative Financial Instruments

Interest rate lock derivatives

On October 1, 2018, we adopted the new derivatives and hedging standard and have applied the standard to hedging 
transactions prospectively. See Note 1 – Summary of Significant Accounting Policies for further discussion on the adoption of 
this standard.

Periodically, we use derivatives to manage exposure to market risk, such as interest rate risk. We designate certain derivatives 
as hedging instruments in a qualifying hedge accounting relationship (cash flow hedge) to help minimize significant, unplanned 
fluctuations in cash flows caused by interest rate volatility. We do not use derivatives for trading or speculative purposes.

We enter into and designate interest rate lock derivatives (forward-starting swap instruments) as cash flow hedges to reduce 
variability in cash flows due to changes in interest payments attributable to increases or decreases in the benchmark interest rate 
during the period leading up to the probable issuance of fixed-rate debt. 

We record interest rate lock derivatives on our Consolidated Balance Sheets at fair value that is derived primarily from 
observable market data, including yield curves. Interest rate lock derivatives were classified as Level 2 in the fair value 
hierarchy. Cash flows associated with derivative instruments are presented in the same category on the Consolidated Statements 
of Cash Flows as the item being hedged.

In October 2018, we entered into interest rate lock derivatives with notional amounts of $9.6 billion. The fair value of interest 
rate lock derivatives as of December 31, 2018 was $447 million and is included in Other current liabilities in our Consolidated 
Balance Sheets. As of and for the year ended December 31, 2018, no amounts were accrued or amortized into Interest expense 
in the Consolidated Statements of Comprehensive Income while changes in fair value, net of tax, of $332 million are presented 
in AOCI. 

Embedded derivatives

In connection with our business combination with MetroPCS, we issued senior reset notes to DT. We determined certain 
components of the reset feature are required to be bifurcated from the senior reset notes and separately accounted for as 
embedded derivative instruments. 

The interest rates on our senior reset notes to DT were adjusted at the reset dates to rates defined in the applicable supplemental 
indentures to manage interest rate risk related to the senior reset notes. Our embedded derivatives are recorded at fair value 
primarily based on unobservable inputs and were classified as Level 3 in the fair value hierarchy for 2018 and 2017.

The fair value of embedded derivative instruments was $19 million and $66 million as of December 31, 2018 and 2017, 
respectively, and is included in Other long-term liabilities in our Consolidated Balance Sheets. For the years ended December 

86

31, 2018, 2017 and 2016, we recognized $29 million, $52 million and $25 million from the gain activity related to embedded 
derivatives instruments in Interest expense to affiliates in our Consolidated Statements of Comprehensive Income. 

Deferred Purchase Price Assets

In connection with the sales of certain service and EIP accounts receivable pursuant to the sale arrangements, we have deferred 
purchase price assets measured at fair value that are based on a discounted cash flow model using unobservable Level 3 inputs, 
including customer default rates. See Note 4 – Sales of Certain Receivables for further information.

The carrying amounts and fair values of our assets measured at fair value on a recurring basis included in our Consolidated 
Balance Sheets were as follows:

(in millions)

Assets:

Level within the
Fair Value
Hierarchy

December 31, 2018

December 31, 2017

Carrying
Amount

Fair Value

Carrying
Amount

Fair Value

Deferred purchase price assets

3

$

746

$

746

$

745

$

745

Long-term Debt

The fair value of our Senior Notes to third parties was determined based on quoted market prices in active markets, and 
therefore was classified as Level 1 within the fair value hierarchy. The fair values of our Senior Notes to affiliates, Incremental 
Term Loan Facility to affiliates and Senior Reset Notes to affiliates were determined based on a discounted cash flow approach 
using market interest rates of instruments with similar terms and maturities and an estimate for our standalone credit risk. 
Accordingly, our Senior Notes to affiliates, Incremental Term Loan Facility to affiliates and Senior Reset Notes to affiliates 
were classified as Level 2 within the fair value hierarchy.

Although we have determined the estimated fair values using available market information and commonly accepted valuation 
methodologies, considerable judgment was required in interpreting market data to develop fair value estimates for the Senior 
Notes to affiliates, Incremental Term Loan Facility to affiliates and Senior Reset Notes to affiliates. The fair value estimates 
were based on information available as of December 31, 2018 and 2017. As such, our estimates are not necessarily indicative of 
the amount we could realize in a current market exchange.

The carrying amounts and fair values of our short-term and long-term debt included in our Consolidated Balance Sheets were 
as follows:

(in millions)

Liabilities:

Level within the
Fair Value
Hierarchy

December 31, 2018

December 31, 2017

Carrying
Amount

Fair Value

Carrying
Amount

Fair Value

Senior Notes to third parties

Senior Notes to affiliates

Incremental Term Loan Facility to affiliates

Senior Reset Notes to affiliates

1

2

2

2

$

10,950

$

10,945

$

11,910

$

9,984

4,000

598

9,802

3,976

640

7,486

4,000

3,100

12,540

7,852

4,020

3,260

Guarantee Liabilities

We offer a device trade-in program, JUMP!, which provides eligible customers a specified-price trade-in right to upgrade their 
device. For customers who enroll in JUMP!, we recognize a liability and reduce revenue for the portion of revenue which 
represents the estimated fair value of the specified-price trade-in right guarantee, incorporating the expected probability and 
timing of handset upgrade and the estimated fair value of the handset which is returned. Accordingly, our guarantee liabilities 
were classified as Level 3 within the fair value hierarchy. When customers upgrade their device, the difference between the EIP 
balance credit to the customer and the fair value of the returned device is recorded against the guarantee liabilities. Guarantee 
liabilities are included in Other current liabilities in our Consolidated Balance Sheets. 

The carrying amounts of our guarantee liabilities measured at fair value on a non-recurring basis included in our Consolidated 
Balance Sheets were $73 million and $105 million as of December 31, 2018 and 2017, respectively.

The total estimated remaining gross EIP receivable balances of all enrolled handset upgrade program customers, which are the 

87

remaining EIP amounts underlying the JUMP! guarantee, including EIP receivables that have been sold, was $3.0 billion as of 
December 31, 2018. This is not an indication of our expected loss exposure as it does not consider the expected fair value of the 
used handset or the probability and timing of the trade-in.

Note 8 – Debt 

Debt was as follows:

(in millions)

8.097% Senior Reset Notes to affiliates due 2021

5.300% Senior Notes to affiliates due 2021

8.195% Senior Reset Notes to affiliates due 2022

4.000% Senior Notes to affiliates due 2022

4.000% Senior Notes due 2022

6.125% Senior Notes due 2022

Incremental term loan facility to affiliates due 2022

6.000% Senior Notes due 2023

6.625% Senior Notes due 2023

6.836% Senior Notes due 2023
9.332% Senior Reset Notes to affiliates due 2023

6.000% Senior Notes due 2024

6.500% Senior Notes due 2024

6.000% Senior Notes to affiliates due 2024

6.000% Senior Notes to affiliates due 2024

Incremental term loan facility to affiliates due 2024

5.125% Senior Notes to affiliates due 2025

5.125% Senior Notes due 2025

6.375% Senior Notes due 2025

6.500% Senior Notes due 2026

4.500% Senior Notes due 2026

4.500% Senior Notes to affiliates due 2026

5.375% Senior Notes due 2027

5.375% Senior Notes to affiliates due 2027

4.750% Senior Notes due 2028

4.750% Senior Notes to affiliates due 2028

Capital leases

Unamortized premium from purchase price allocation fair value adjustment

Unamortized premium on debt to affiliates

Unamortized discount on Senior Notes to affiliates

Debt issuance costs and consent fees

Total debt

Less: Current portion of Senior Notes

Less: Current portion of capital leases

Total long-term debt

Classified on the balance sheet as:

Long-term debt

Long-term debt to affiliates

Total long-term debt

88

December 31,
2018

December 31,
2017

$

— $

2,000

—

1,000

500

—

2,000

1,300

—

—
600

1,000

1,000

1,350

650

2,000

1,250

500

1,700

2,000

1,000

1,000

500

1,250

1,500

1,500

2,015

—

52

(64)

(56)

27,547

—

841

26,706

12,124

14,582

26,706

$

$

$

$

$

$

1,250

2,000

1,250

1,000

500

1,000

2,000

1,300

1,750

600
600

1,000

1,000

1,350

650

2,000

1,250

500

1,700

2,000

—

—

500

1,250

—

—

1,824

78

59

(73)

(19)

28,319

999

613

26,707

12,121

14,586

26,707

Debt to Third Parties

During the year ended December 31, 2018 we issued the following Senior Notes:

(in millions)

4.500% Senior Notes due 2026

4.750% Senior Notes due 2028

Total of Senior Notes issued

Principal 
Issuances

Issuance 
Costs

Net Proceeds 
from Issuance 
of Long-Term 
Debt

Issue Date

$

$

1,000

1,500

2,500

$

$

2

4

6

$

$

998

January 25, 2018

1,496

January 25, 2018

2,494

We used the net proceeds of $2.494 billion from the public debt issuance to redeem our $1.750 billion of 6.625% Senior Notes 
due 2023 on April 1, 2018, and to redeem our $600 million of 6.836% Senior Notes due 2023 on April 28, 2018, and for 
general corporate purposes, including the partial repayment of borrowings under our revolving credit facility with DT.

During the year ended December 31, 2018 we made the following note redemptions:

(in millions)

6.125% Senior Notes due 2022

6.625% Senior Notes due 2023

6.836% Senior Notes due 2023

Principal
Amount

Write-off of 
Premiums, 
Discounts and 
Issuance Costs (1)

Call Penalties (1) (2)

Redemption
Date

Redemption
Price

$

1,000

$

1,750

600

1

$

(75)

—

31

58

21

January 15, 2018

April 1, 2018

April 28, 2018

103.063%

103.313%

103.418%

(1)  Write-off of premiums, discounts, issuance costs and call penalties are included in Other income (expense), net in our Consolidated Statements of 

Comprehensive Income. Write-off of premiums, discounts and issuance costs are included in Losses on redemption of debt within Net cash provided by 
operating activities in our Consolidated Statements of Cash Flows.

(2)  The call penalty is the excess paid over the principal amount. Call penalties are included within Net cash (used in) provided by financing activities in our 

Consolidated Statements of Cash Flows.

Debt to Affiliates

On April 30, 2018, DT purchased (i) $1.0 billion in aggregate principal amount of 4.500% Senior Notes due 2026 and (ii) $1.5 
billion in aggregate principal amount of 4.750% Senior Notes due 2028 directly from T-Mobile USA and certain of its 
affiliates, as guarantors, with no underwriting discount (the “New DT Notes”).

We used the net proceeds of $2.5 billion from the transaction to refinance existing indebtedness to DT as follows:

(in millions)

8.097% Senior Notes due 2021

8.195% Senior Notes due 2022

Total

Principal
Amount

Write -off of 
Embedded 
Derivatives (1)

Other (2)

Redemption
Date

Redemption
Price

$

$

1,250

1,250

2,500

$

$

(8) $

(8)

(16) $

51

51

102

April 28, 2018

April 28, 2018

104.0485%

104.0975%

(1)  Certain components of the reset features were required to be bifurcated from the DT Senior Reset Notes and separately accounted for as embedded 

derivative instruments. Write-off of embedded derivatives are included in Losses on redemption of debt within Net cash provided by operating activities 
in our Consolidated Statements of Cash Flows.

(2)  Cash for the premium portion of the redemption price set forth in the indenture governing the DT Senior Reset Notes, plus accrued but unpaid interest on 

the DT Senior Reset Notes to, but not including, the exchange date.

Incremental Term Loan Facility

In March 2018, we amended the terms of our secured term loan facility (“Incremental Term Loan Facility”) with DT, our 
majority stockholder. Following this amendment, the applicable margin payable on LIBOR indexed loans is 1.50% under the 
$2.0 billion Incremental Term Loan Facility maturing on November 9, 2022 and 1.75% under the $2.0 billion Incremental Term 
Loan Facility maturing on January 31, 2024. The amendment also modified the Incremental Term Loan Facility to (i) include a 
soft-call prepayment premium of 1.00% of the outstanding principal amount of the loans under the Incremental Term Loan 
Facility payable to DT upon certain refinancings of such loans by us with lower priced debt prior to a date that is six months 
after March 29, 2018 and (ii) update certain covenants and other provisions to make them substantially consistent, subject to 
certain additional carve outs, with our most recently issued public notes. No issuance fees were incurred related to this debt 
facility for the years ended December 31, 2018 or 2017.

89

Commitment Letter

Under the Commitment Letter in connection with the Merger, certain financial institutions named therein have committed to 
provide up to $30.0 billion in secured and unsecured debt financing, including a $4.0 billion secured revolving credit facility, a 
$7.0 billion secured term loan facility and a $19.0 billion secured bridge loan facility. In connection with the financing provided 
for in the Commitment Letter, we expect to incur certain fees if the Merger closes, including fees for the financial institutions 
structuring and providing the commitments for the secured term loan facility, secured revolving loan facility and the secured 
bridge loan, and certain take-out fees associated with the issuance of permanent secured bond debt in lieu of the secured bridge 
loan. We expect to incur up to approximately $340 million if the closing date occurs on or after April 29, 2019. There was no 
fee accrued as of December 31, 2018. We also may be required to draw down on the $7.0 billion secured term loan facility on 
May 1, 2019, and would be required to place the proceeds in escrow and pay interest thereon until the Merger closes.

Financing Matters Agreement

Pursuant to the Financing Matters Agreement, DT agreed, among other things, to consent to the incurrence by T-Mobile USA of 
secured debt in connection with and after the consummation of the Merger, and to provide a lock up on sales thereby as to 
certain senior notes of T-Mobile USA held thereby. In addition, T-Mobile USA agreed, among other things, to repay and 
terminate, upon closing of the Merger, the Incremental Term Loan Facility and the revolving credit facility of T-Mobile USA 
which are provided by DT, as well as $2.0 billion of T-Mobile USA’s 5.300% Senior Notes due 2021 and $2.0 billion of T-
Mobile USA’s 6.000% Senior Notes due 2024. In addition, T-Mobile USA and DT agreed, upon closing of the Merger, to 
amend the $1.25 billion of T-Mobile USA’s 5.125% Senior Notes due 2025 and $1.25 billion of T-Mobile USA’s 5.375% Senior 
Notes due 2027 to change the maturity dates thereof to April 15, 2021 and April 15, 2022, respectively (the “2025 and 2027 
Amendments”). In connection with receiving the requisite consents, we made upfront payments to DT of $7 million during the 
second quarter of 2018. These payments were recognized as a reduction to Long-term debt to affiliates in our Consolidated 
Balance Sheets. In accordance with the consents received from DT, on December 20, 2018, T-Mobile USA, the guarantors and 
Deutsche Bank Trust Company Americas, as trustee, executed and delivered the 38th supplemental indenture to the Indenture, 
pursuant to which, with respect to certain T-Mobile USA Senior Notes held by DT, the Proposed Amendments (as defined 
below under “Consents on Debt to Third Parties”) and the 2025 and 2027 Amendments will become effective immediately 
prior to the consummation of the Merger. If the Merger is consummated, we will make additional payments for requisite 
consents to DT of $20 million. There was no additional payment accrued as of December 31, 2018.

Consents on Debt to Third Parties

On May 18, 2018, under the terms and conditions described in the Consent Solicitation Statement, we obtained consents 
necessary to effect certain amendments to our Senior Notes to third parties in connection with the Business Combination 
Agreement. Pursuant to the Consent Solicitation Statement, third-party note holders agreed, among other things, to consent to 
increasing the amount of Secured Indebtedness under Credit Facilities that can be incurred from the greater of $9.0 billion and 
150% of Consolidated Cash Flow to the greater of $9.0 billion and an amount that would not cause the Secured Debt to Cash 
Flow Ratio (calculated net of cash and cash equivalents) to exceed 2.00x (the “Ratio Secured Debt Proposed Amendments”) 
and in each case as such capitalized term is defined in the Indenture. In connection with receiving the requisite consents for the 
Ratio Secured Debt Proposed Amendments, we made upfront payments to third-party note holders of $17 million during the 
second quarter of 2018. These payments were recognized as a reduction to Long-term debt in our Consolidated Balance Sheets. 
These upfront payments increased the effective interest rate of the related debt.

In addition, note holders agreed, among other things, to allow certain entities related to Sprint’s existing spectrum securitization 
notes program (“Existing Sprint Spectrum Program”) to be non-guarantor Restricted Subsidiaries, provided that the principal 
amount of the spectrum notes issued and outstanding under the Existing Sprint Spectrum Program does not exceed $7.0 billion 
and that the principal amount of such spectrum notes reduces the amount available under the Credit Facilities ratio basket, and 
to revise the definition of GAAP to mean generally accepted accounting principles in effect from time to time, unless the 
Company elects to “freeze” GAAP as of any date, and to exclude the effect of the changes in the accounting treatment of lease 
obligations (the “Existing Sprint Spectrum and GAAP Proposed Amendments,” and together with the Ratio Secured Debt 
Proposed Amendments, the “Proposed Amendments”). In connection with receiving the requisite consents for the Existing 
Sprint Spectrum and GAAP Proposed Amendments, we made upfront payments to third-party note holders of $14 million 
during the second quarter of 2018. These payments were recognized as a reduction to Long-term debt in our Consolidated 
Balance Sheets. These upfront payments increased the effective interest rate of the related debt.

In connection with obtaining the requisite consents, on May 20, 2018, T-Mobile USA, the guarantors and Deutsche Bank Trust 
Company Americas, as trustee, executed and delivered the 37th supplemental indenture to the Indenture, pursuant to which, 

90

with respect to each of the Notes, the Proposed Amendments will become effective immediately prior to the consummation of 
the Merger.

We paid third-party bank fees associated with obtaining the requisite consents related to the Proposed Amendments of $6 
million during the second quarter of 2018, which we recognized as Selling, general and administrative expenses in our 
Consolidated Statements of Comprehensive Income. If the Merger is consummated, we will make additional payments to third-
party note holders for requisite consents related to the Ratio Secured Debt Proposed Amendments of up to $54 million and 
additional payments to third-party note holders for requisite consents related to the Existing Sprint Spectrum and GAAP 
Proposed Amendments of up to $41 million. There was no payment accrued as of December 31, 2018. 

Financing Arrangements

We maintain a handset financing arrangement with Deutsche Bank AG (“Deutsche Bank”), which allows for up to $108 million 
in borrowings. Under the handset financing arrangement, we can effectively extend payment terms for invoices payable to 
certain handset vendors. The interest rate on the handset financing arrangement is determined based on LIBOR plus a specified 
margin per the arrangement. Obligations under the handset financing arrangement are included in Short-term debt in our 
Consolidated Balance Sheets. In 2017, we utilized and repaid $100 million under the financing arrangement. As of 
December 31, 2018 and 2017, there was no outstanding balance.

We maintain vendor financing arrangements with our primary network equipment suppliers. Under the respective agreements, 
we can obtain extended financing terms. The interest rate on the vendor financing arrangements is determined based on the 
difference between LIBOR and a specified margin per the agreements. Obligations under the vendor financing arrangements 
are included in Short-term debt in our Consolidated Balance Sheets. In 2018, we utilized and repaid $300 million under the 
financing arrangement. As of December 31, 2018 and 2017, there was no outstanding balance.

Revolving Credit Facility

We have a $2.5 billion revolving credit facility with DT that is comprised of (i) a $1.0 billion unsecured revolving credit 
agreement (“Unsecured Revolving Credit Facility”) and (ii) a $1.5 billion secured revolving credit agreement (“Secured 
Revolving Credit Facility”). In January 2018, we utilized proceeds under our revolving credit facility with DT to redeem $1.0 
billion in aggregate principal amount of our 6.125% Senior Notes due 2022 and for general corporate purposes. On January 29, 
2018, the proceeds utilized under our revolving credit facility with DT were repaid. 

In March 2018, we amended the terms of our Unsecured Revolving Credit Facility and our Secured Revolving Credit Facility. 
Following these amendments, (i) the range of the applicable margin payable under the Unsecured Revolving Credit Facility is 
2.05% to 3.05%, (ii) the range of applicable margin payable under the Secured Revolving Credit Facility is 1.05% to 1.80%, 
(iii) the range of the undrawn commitment fee applicable to the Unsecured Revolving Credit Facility is 0.20% to 0.575%, (iv) 
the range of the undrawn commitment fee applicable to the Secured Revolving Credit Facility is 0.25% to 0.45%, and (v) the 
maturity date of the revolving credit facility with DT is December 29, 2020. The amendments also modify the facility to update 
certain covenants and other provisions to make them substantially consistent, subject to certain additional carve outs, with our 
most recently issued public notes. 

In November 2018, we amended the terms of the revolving credit facility with DT to extend the maturity date to December 29, 
2021.

The proceeds and borrowings from the revolving credit facility are presented in Proceeds from borrowing on revolving credit 
facility and Repayments of revolving credit facility within Net cash (used in) provided by financing activities in our 
Consolidated Statements of Cash Flows. As of December 31, 2018 and 2017, there were no outstanding borrowings under the 
revolving credit facility. 

91

Capital Leases

Capital lease agreements primarily relate to network equipment with varying expiration terms through 2033. Future minimum 
payments required under capital leases, including interest and maintenance, over their remaining terms are summarized below:

(in millions)

Year Ended December 31,

2019

2020

2021

2022

2023

Thereafter

Total

Included in Total

Interest

Maintenance

Standby Letters of Credit

Future
Minimum
Payments

$

$

$

909

631

389

102

66

106

2,203

143

45

For the purposes of securing our obligations to provide handset insurance services, we maintain an agreement for standby 
letters of credit with JP Morgan Chase Bank, N.A. (“JP Morgan Chase”). For purposes of securing our general purpose 
obligations, we maintain a letter of credit reimbursement agreement with Deutsche Bank.

The following table summarizes the outstanding standby letters of credit under each agreement:

(in millions)

JP Morgan Chase

Deutsche Bank

Total outstanding balance

Note 9 – Tower Obligations

December 31,
2018

December 31,
2017

$

$

20

66

86

$

$

20

59

79

In 2012, we conveyed to Crown Castle International Corp. (“CCI”) the exclusive right to manage and operate approximately 
7,100 T-Mobile-owned wireless communication tower sites (“CCI Tower Sites”) in exchange for net proceeds of $2.5 billion 
(the “2012 Tower Transaction”). Rights to approximately 6,200 of the tower sites were transferred to CCI via a master prepaid 
lease with site lease terms ranging from 23 to 37 years (“CCI Lease Sites”), while the remaining tower sites were sold to CCI 
(“CCI Sales Sites”). CCI has fixed-price purchase options for these towers totaling approximately $2.0 billion, based on the 
estimated fair market value at the end of the lease term. We lease back space at certain tower sites for an initial term of ten 
years, followed by optional renewals at customary terms.

In 2015, we conveyed to Phoenix Tower International (“PTI”) the exclusive right to manage and operate approximately 600 T-
Mobile-owned wireless communication tower sites (“PTI Tower Sites”) in exchange for net proceeds of approximately $140 
million (the “2015 Tower Transaction”). As of December 31, 2018, rights to approximately 150 of the tower sites remain 
operated by PTI under a management agreement (“PTI Managed Sites”). We lease back space at certain tower sites for an 
initial term of ten years, followed by optional renewals at customary terms.

Assets and liabilities associated with the operation of certain of the tower sites were transferred to SPEs. Assets included 
ground lease agreements or deeds for the land on which the towers are situated, the towers themselves and existing subleasing 
agreements with other mobile network operator tenants, who lease space at the tower sites. Liabilities included the obligation to 
pay ground lease rentals, property taxes and other executory costs. Upon closing of the 2012 Tower Transaction, CCI acquired 
all of the equity interests in the SPEs containing CCI Sales Sites and an option to acquire the CCI Lease Sites at the end of their 
respective lease terms and entered into a master lease agreement under which we agreed to lease back space at certain of the 
tower sites. Upon closing of the 2015 Tower Transaction, PTI acquired all of the equity interests in the SPEs containing PTI 
Sales Sites and entered into a master lease agreement under which we agreed to lease back space at certain of the tower sites.

92

We determined the SPEs containing the CCI Lease Sites (“Lease Site SPEs”) are VIEs as our equity investment lacks the power 
to direct the activities that most significantly impact the economic performance of the VIEs. These activities include managing 
tenants and underlying ground leases, performing repair and maintenance on the towers, the obligation to absorb expected 
losses and the right to receive the expected future residual returns from the purchase option to acquire the CCI Lease Sites. As 
we determined that we are not the primary beneficiary and do not have a controlling financial interest in the Lease Site SPEs, 
the balances and operating results of the Lease Site SPEs are not included in our Consolidated Financial Statements.

Due to our continuing involvement with the tower sites, we determined that we were precluded from applying sale-leaseback 
accounting. We recorded long-term financial obligations in the amount of the net proceeds received and recognized interest on 
the tower obligations at a rate of approximately 8% for the 2012 Tower Transaction and 5% for the 2015 Tower Transaction 
using the effective interest method. The tower obligations are increased by interest expense and amortized through contractual 
leaseback payments made by us to CCI or PTI and through estimated future net cash flows generated and retained by CCI or 
PTI from operation of the tower sites. Our historical tower site asset costs continue to be reported in Property and equipment, 
net in our Consolidated Balance Sheets and are depreciated.

The following table summarizes the impacts to the Consolidated Balance Sheets:

(in millions)

Property and equipment, net

Long-term financial obligation

December 31,
2018

December 31,
2017

$

329

$

2,557

402

2,590

Future minimum payments related to the tower obligations are expected to be approximately $195 million in 2019, $391 
million in total for 2020 and 2021, $392 million in total for 2022 and 2023 and $835 million in total for years thereafter.

We are contingently liable for future ground lease payments through the remaining term of the CCI Lease Sites. These 
contingent obligations are not included in the above table as any amount due is contractually owed by CCI based on the 
subleasing arrangement. See Note 15 – Commitments and Contingencies for further information.

If we conclude a sale should be recognized, upon adoption of the new lease standard on January 1, 2019, we would derecognize 
our existing long-term financial obligation and the net book value of the tower-related property and equipment associated with 
the previous failed sale-leaseback transaction. See Note 1 – Summary of Significant Accounting Policies for further 
information.

Note 10 – Revenue from Contracts with Customers 

Disaggregation of Revenue

We provide wireless communication services to three primary categories of customers: 

•  Branded postpaid customers generally include customers who are qualified to pay after receiving wireless 

communication services utilizing phones, mobile broadband devices (including tablets), DIGITS, SyncUP DRIVE™ 
or other devices including wearables; 

•  Branded prepaid customers generally include customers who pay for wireless communication services in advance. Our 

branded prepaid customers include customers of T-Mobile and Metro by T-Mobile; and

•  Wholesale customers include M2M and MVNO customers that operate on our network but are managed by wholesale 

partners.

See Note 1 – Summary of Significant Accounting Policies for further discussion.

93

Branded postpaid service revenues, including branded postpaid phone revenues and branded postpaid other revenues, were as 
follows: 

(in millions)

Branded postpaid service revenues

Branded postpaid phone revenues

Branded postpaid other revenues

Total branded postpaid service revenues

Year Ended December 31,

2018

2017

2016

$

$

19,745

1,117

20,862

$

$

18,371

1,077

19,448

$

$

17,365

773

18,138

We operate as a single operating segment. The balances presented within each revenue line item in our Consolidated Statements 
of Comprehensive Income represent categories of revenue from contracts with customers disaggregated by type of product and 
service. Service revenues also include revenues earned for providing value added services to customers, such as handset 
insurance services. Revenue generated from the lease of mobile communication devices and accessories is included within 
Equipment revenues in our Consolidated Statements of Comprehensive Income. 

Equipment revenues from the lease of mobile communication devices and accessories were as follows:

(in millions)

Year Ended December 31,

2018

2017

2016

Equipment revenues from the lease of mobile communication devices and accessories

$

692

$

877

$

1,416

Contract Balances

The opening and closing balances of our contract asset and contract liability balances from contracts with customers as of 
January 1, 2018 and December 31, 2018, were as follows:

(in millions)

Balance as of January 1, 2018

Balance as of December 31, 2018

Change

Contract Assets
Included in
Other Current
Assets

Contract
Liabilities
Included in
Deferred
Revenue

$

$

140

$

51

(89) $

718

645

(73)

Contract assets primarily represent revenue recognized for equipment sales with promotional bill credits offered to customers 
that are paid over time and are contingent on the customer maintaining a service contract. The change in the contract asset 
balance includes customer activity related to new promotions, offset by billings on existing contracts and impairment which is 
recognized as bad debt expense.

Contract liabilities are recorded when fees are collected, or we have an unconditional right to consideration (a receivable) in 
advance of delivery of goods or services. The change in contract liabilities is primarily related to customer activity associated 
with our prepaid plans including the receipt of cash payments and the satisfaction of our performance obligations.

Revenues for the year ended December 31, 2018, include the following:

(in millions)

Amounts included in the January 1, 2018 contract liability balance

Amounts associated with performance obligations satisfied in previous periods

Remaining Performance Obligations

Year Ended
December 31, 2018

$

710

2

As of December 31, 2018, the aggregate amount of transaction price allocated to remaining service performance obligations for 
branded postpaid contracts with promotional bill credits that result in an extended service contract is $308 million. We expect 
to recognize this revenue as service is provided over the extended contract term in the next 24 months.

Certain of our wholesale, roaming and other service contracts include variable consideration based on usage. This variable 
consideration has been excluded from the disclosure of remaining performance obligations. As of December 31, 2018, the 

94

aggregate amount of the contractual minimum consideration allocated to remaining service performance obligations for 
wholesale, roaming and other service contracts is $1.1 billion, $1.0 billion and $1.5 billion for 2019, 2020 and 2021 and 
beyond, respectively. These contracts have a remaining duration of less than one year to six years.

Information about remaining performance obligations that are part of a contract that has an original expected duration of one 
year or less have been excluded from the above, which primarily consists of monthly service contracts. The aggregate amount 
of the transaction price allocated to remaining service performance obligations includes the estimated amount to be invoiced to 
the customer.

Contract Costs

The total balance of deferred incremental costs to obtain contracts as of December 31, 2018 was $644 million. Deferred 
contract costs incurred to obtain postpaid service contracts are amortized over a period of 24 months. The amortization period 
is monitored to reflect any significant change in assumptions. Amortization of deferred contract costs was $267 million for the 
year ended December 31, 2018.

The deferred contract cost asset is assessed for impairment on a periodic basis. There were no impairment losses recognized on 
deferred contract cost assets for the year ended December 31, 2018.

Note 11 – Employee Compensation and Benefit Plans 

On February 14, 2018, our Board of Directors adopted, and on June 13, 2018, our stockholders approved an amendment (the 
“Amendment”) to the 2013 Omnibus Incentive Plan (as amended, the “Plan”) which increased the number of shares authorized 
for issuance under the Plan by 18,500,000 shares. On June 18, 2018, we filed a Form S-8 to register a total of 19,345,005 
shares of common stock pursuant to the Plan, representing those covered by the Amendment, certain other predecessor plans, 
and certain equity arrangements assumed in connection with the acquisition of Layer3 TV in January 2018.

During the year ended December 31, 2018, we granted or assumed an aggregate of 6,259,169 RSUs and restricted stock awards 
(“RSAs”) to eligible employees, certain non-employee directors, and eligible key executives, which primarily included annual 
awards. RSUs entitle the grantee to receive shares of our common stock at the end of a vesting period of generally up to three 
years, subject to continued service through the applicable vesting date.

During the year ended December 31, 2018, we granted an aggregate of 3,364,629 PRSUs to eligible key executives, which 
primarily included annual awards and an aggregate of 1,317,386 PRSUs to certain executive officers in connection with the 
entry into the Business Combination Agreement with Sprint. PRSUs entitle the holder to receive shares of our common stock at 
the end of a performance period of generally up to three years, based on the attainment of the applicable performance goals and 
generally subject to continued employment through the applicable performance period. The number of shares ultimately 
received by the holder of PRSUs is dependent on our business performance against the specified performance goal(s) over a 
pre-established performance period.

As discussed in Note 2 – Business Combinations, in January 2018 we completed our acquisition of Layer3 TV. The fair value 
of share-based incentive compensation awards attributable to post-combination services was approximately $30 million.  

Stock-based compensation expense and related income tax benefits were as follows:

(in millions, except shares, per share and contractual life amounts)

December 31,
2018

December 31,
2017

December 31,
2016

Stock-based compensation expense

Income tax benefit related to stock-based compensation

Weighted average fair value per stock award granted

Unrecognized compensation expense

Weighted average period to be recognized (years)

Fair value of stock awards vested

$

424

$

306

$

81

61.52

547

1.8

471

73

60.21

445

1.9

503

235

80

45.07

389

2.0

354

95

 
Stock Awards

Time-Based Restricted Stock Units and Restricted Stock Awards

(in millions, except shares, per share and contractual life amounts)

Nonvested, December 31, 2017

Granted

Vested

Forfeited

Nonvested, December 31, 2018

Number of Units
or Awards

Weighted
Average Grant
Date Fair Value

12,061,608

$

6,259,169

6,455,617

854,525

11,010,635

50.69

60.44

47.89

56.90

57.66

Performance-Based Restricted Stock Units and Restricted Stock Awards

(in millions, except shares, per share and contractual life amounts)

Nonvested, December 31, 2017

Granted

Vested

Forfeited

Nonvested, December 31, 2018

Number of Units
or Awards

Weighted
Average Grant
Date Fair Value

1,633,935

$

3,364,629

1,006,769

140,241

3,851,554

48.06

63.54

36.47

64.14

64.03

Weighted
Average
Remaining
Contractual
Term (Years)

Aggregate
Intrinsic Value

1.1

$

766

1.0

$

700

Weighted
Average
Remaining
Contractual
Term (Years)

Aggregate
Intrinsic Value

1.1

$

104

1.6

$

245

PRSUs included in the table above are shown at target. Share payout can range from 0% to 200% based on different performance outcomes.

Payment of the underlying shares in connection with the vesting of stock awards generally triggers a tax obligation for the 
employee, which is required to be remitted to the relevant tax authorities. We have agreed to withhold shares of common stock 
otherwise issuable under the award to cover certain of these tax obligations, with the net shares issued to the employee 
accounted for as outstanding common stock. We withheld 2,321,827 and 2,754,721 shares of common stock to cover tax 
obligations associated with the payment of shares upon vesting of stock awards and remitted cash of $146 million and $166 
million to the appropriate tax authorities for the years ended December 31, 2018 and 2017, respectively.

Employee Stock Purchase Plan

Our employee stock purchase plan (“ESPP”) allows eligible employees to contribute up to 15% of their eligible earnings 
toward the semi-annual purchase of our common stock at a discounted price, subject to an annual maximum dollar amount. 
Employees can purchase stock at a 15% discount applied to the closing stock price on the first or last day of the six-month 
offering period, whichever price is lower. The number of shares issued under our ESPP was 2,011,794 and 1,832,043 for the 
years ended December 31, 2018 and 2017, respectively.

Stock Options

Stock options outstanding relate to the Metro Communications, Inc. 2010 Equity Incentive Compensation Plan, the Amended 
and Restated Metro Communications, Inc. 2004 Equity Incentive Compensation Plan, the Second Amended and Restated 1995 
Stock Option Plan and the Layer3 TV, Inc. 2013 Stock Plan (collectively, the “Stock Option Plans”). No new awards have been 
or may be granted under the Stock Option Plans. 

96

The following activity occurred under the Stock Option Plans:

Outstanding and exercisable, December 31, 2017

Assumed through acquisition of Layer3 TV

Exercised

Expired/canceled

Outstanding at December 31, 2018

Exercisable at December 31, 2018

Shares

Weighted
Average Exercise
Price

Weighted
Average
Remaining
Contractual
Term (Years)

373,158

$

118,645

187,965

19,027

284,811

244,224

16.36

15.51

18.28

18.81

14.58

14.18

2.8

3.8

3.1

Stock options exercised under the Stock Option Plans generated proceeds of approximately $3 million and $21 million for the 
years ended December 31, 2018 and 2017, respectively.

Employee Retirement Savings Plan 

We sponsor a retirement savings plan for the majority of our employees under Section 401(k) of the Internal Revenue Code and 
similar plans. The plans allow employees to contribute a portion of their pretax income in accordance with specified guidelines. 
The plans provide that we match a percentage of employee contributions up to certain limits. Employer matching contributions 
were $102 million, $87 million and $83 million for the years ended December 31, 2018, 2017 and 2016, respectively.

Legacy Long-Term Incentive Plan

Prior to the business combination with MetroPCS Communications, Inc., we maintained a performance-based Long-Term 
Incentive Plan (“LTIP”) which aligned to our long-term business strategy. As of December 31, 2018 and 2017, there were no 
LTIP awards outstanding and no new awards are expected to be granted under the LTIP. There was no compensation expense 
reported within operating expenses related to our LTIP for the years ended December 31, 2018, 2017 and 2016. There were no 
payments to participants related to our LTIP for the years ended December 31, 2018 and 2017. Payments were $52 million for 
the year ended December 31, 2016. 

Note 12 – Repurchases of Common Stock

2017 Stock Repurchase Program

On December 6, 2017, our Board of Directors authorized a stock repurchase program for up to $1.5 billion of our common 
stock through December 31, 2018 (the “2017 Stock Repurchase Program”). Repurchased shares are retired. The 2017 Stock 
Repurchase Program completed on April 29, 2018.

The following table summarizes information regarding repurchases of our common stock under the 2017 Stock Repurchase 
Program:

(In millions, except shares and per share price)

Year ended December 31

2018

2017

2018 Stock Repurchase Program

Number of Shares
Repurchased

Average Price Paid Per
Share

Total Purchase Price

16,738,758

$

7,010,889

23,749,647

62.96

63.34

63.07

$

$

1,054

444

1,498

On April 27, 2018, our Board of Directors authorized an increase in the total stock repurchase program to $9.0 billion, 
consisting of the $1.5 billion in repurchases previously completed and for up to an additional $7.5 billion of repurchases of our 
common stock, allocated as up to $500 million of shares of common stock through December 31, 2018, up to $3.0 billion of 
shares of common stock for the year ending December 31, 2019 and up to $4.0 billion of shares of common stock for the year 
ending December 31, 2020, with any authorized but unutilized repurchase capacity for any of the foregoing periods increasing 

97

the authorized repurchase capacity for the succeeding period by the amount of such unutilized repurchase capacity. The 
additional $7.5 billion repurchase authorization is contingent upon the termination of the Business Combination Agreement and 
the abandonment of the transactions contemplated under the Business Combination Agreement.

Under the repurchase program, repurchases can be made from time to time using a variety of methods, which may include open 
market purchases, privately negotiated transactions or otherwise, all in accordance with the rules of the SEC and other 
applicable legal requirements. The specific timing, price and size of purchases will depend on prevailing stock prices, general 
economic and market conditions, and other considerations. The repurchase program does not obligate us to acquire any 
particular amount of common stock, and the repurchase program may be suspended or discontinued at any time at our 
discretion. Repurchased shares are retired.

Stock Purchases by Affiliate

In the first quarter of 2018, DT, our majority stockholder and an affiliated purchaser, purchased 3.3 million additional shares of 
our common stock at an aggregate market value of $200 million in the public market or from other parties, in accordance with 
the rules of the SEC and other applicable legal requirements. There were no purchases in the remainder of 2018. We did not 
receive proceeds from these purchases.

Note 13 – Income Taxes 

Our sources of Income before income taxes were as follows:

(in millions)

U.S.

Puerto Rico

Income before income taxes

Income tax expense is summarized as follows:

(in millions)

Current tax benefit (expense)

Federal

State

Puerto Rico

Total current tax benefit (expense)

Deferred tax benefit (expense)

Federal

State

Puerto Rico

Total deferred tax (expense) benefit

Total income tax (expense) benefit

Year Ended December 31,

2018

2017

2016

3,686

231

3,917

$

$

3,274

(113)

3,161

$

$

2,286

41

2,327

Year Ended December 31,

2018

2017

2016

39

$

— $

$

$

$

66

(29)

10

47

(804)

(96)

(14)

(914)

(867)

(63)

(25)

(49)

(750)

(160)

(70)

(980)

(28)

(1)

(29)

1,182

173

49

1,404

$

(1,029) $

1,375

$

98

The reconciliation between the U.S. federal statutory income tax rate and our effective income tax rate is as follows:

Federal statutory income tax rate

Effect of law and rate changes

Change in valuation allowance

State taxes, net of federal benefit

Equity-based compensation

Puerto Rico taxes, net of federal benefit

Permanent differences

Federal tax credits, net of reserves

Other, net

Effective income tax rate

Year Ended December 31,

2018

2017

2016

21.0%

35.0 %

35.0%

1.9

(1.6)

4.8

(0.6)

2.4

1.3

(2.9)

—

(68.9)

(11.4)

4.8

(2.4)

(1.5)

0.5

0.3

0.1

0.8

1.0

3.2

(2.2)

—

0.6

(0.5)

(0.6)

26.3%

(43.5)%

37.3%

Significant components of deferred income tax assets and liabilities, tax effected, are as follows:

(in millions)

Deferred tax assets

Loss carryforwards

Deferred rents

Reserves and accruals

Federal and state tax credits

Other

Deferred tax assets, gross

Valuation allowance

Deferred tax assets, net

Deferred tax liabilities

Spectrum licenses

Property and equipment

Other intangible assets

Other

Total deferred tax liabilities

Net deferred tax liabilities

Classified on the balance sheet as:

Deferred tax liabilities

December 31,
2018

December 31,
2017

$

1,526

$

1,576

784

668

340

620

3,938

(210)

3,728

5,494

2,434

40

232

8,200

4,472

$

759

667

298

403

3,703

(273)

3,430

5,038

1,840

41

48

6,967

3,537

4,472

$

3,537

$

$

In 2017, the SEC issued Staff Accounting Bulletin (“SAB”) No. 118 which permitted the recording of provisional amounts 
related to the impact of the U.S. Tax Cuts and Jobs Act of 2017 (the “TCJA”) during a measurement period not to exceed one 
year from the enactment date of the TCJA. We recorded an immaterial amount for provisional items related to the TCJA in our 
Consolidated Statements of Comprehensive Income for the year ended December 31, 2017. Our accounting for these items is 
now complete. Current period adjustments related to the provisional items were immaterial.

As of December 31, 2018, we have tax effected net operating loss (“NOL”) carryforwards of $1.1 billion for federal income tax 
purposes and $797 million for state income tax purposes, expiring through 2038. Federal NOLs and certain state NOLs 
generated in 2018 do not expire. As of December 31, 2018, our tax effected federal and state NOL carryforwards for financial 
reporting purposes were approximately $119 million and $261 million, respectively, less than our NOL carryforwards for 
federal and state income tax purposes, due to unrecognized tax benefits of the same amount. The financial reporting amounts 
exclude indirect tax effects in other jurisdictions.

As of December 31, 2018, we have available Alternative Minimum Tax (“AMT”) credit carryforwards of $48 million. Under 
the TCJA, the AMT credits will be fully recovered by 2021. We also have research and development and foreign tax credit 
carryforwards with a combined value of $312 million for federal income tax purposes, which begin to expire in 2019. 

99

As of December 31, 2018, 2017 and 2016, our valuation allowance was $210 million, $273 million and $573 million, 
respectively. The change from December 31, 2017 to December 31, 2018 primarily related to a reduction in the valuation 
allowance against deferred tax assets in certain state jurisdictions from a change in tax status of certain subsidiaries. The change 
from December 31, 2016 to December 31, 2017 primarily related to a reduction in the valuation allowance against deferred tax 
assets in state jurisdictions of $359 million, partially offset by a $26 million valuation allowance established during 2017 for 
the impact of the TCJA on certain tax credits and a $33 million increase in the valuation allowance associated with the reduced 
federal benefit of state items. We will continue to monitor positive and negative evidence related to the utilization of the 
remaining deferred tax assets for which a valuation allowance continues to be provided. It is possible that our valuation 
allowance may change within the next twelve months.

We file income tax returns in the U.S. federal jurisdiction, various state jurisdictions and in Puerto Rico. We are currently under 
examination by various states. Management does not believe the resolution of any of the audits will result in a material change 
to our financial condition, results of operations or cash flows. The IRS has concluded its audits of our federal tax returns 
through the 2013 tax year; however, NOL and other carryforwards for certain audited periods remain open for examination. We 
are generally closed to U.S. federal, state and Puerto Rico examination for years prior to 1999.

A reconciliation of the beginning and ending amount of unrecognized tax benefits were as follows:

(in millions)

Unrecognized tax benefits, beginning of year

Gross increases (decreases) to tax positions in prior periods

Gross increases due to current period business acquisitions

Gross increases to current period tax positions

Unrecognized tax benefits, end of year

Year Ended December 31,

2018

2017

2016

412

$

410

$

6

10

34

(10)

—

12

462

$

412

$

411

(5)

—

4

410

$

$

As of December 31, 2018 and 2017, we had $315 million and $254 million, respectively, in unrecognized tax benefits that, if 
recognized, would affect our annual effective tax rate. Included in the 2018 increase to unrecognized tax benefits is $10 million 
related to tax positions acquired through the acquisition of Layer3 TV. Penalties and interest on income tax assessments are 
included in Selling, general and administrative expenses and Interest expense, respectively, in our Consolidated Statements of 
Comprehensive Income. The accrued interest and penalties associated with unrecognized tax benefits are insignificant.

Note 14 – Earnings Per Share

The computation of basic and diluted earnings per share was as follows:

(in millions, except shares and per share amounts)

Net income

Less: Dividends on mandatory convertible preferred stock

Net income attributable to common stockholders - basic

Add: Dividends related to mandatory convertible preferred stock

Net income attributable to common stockholders - diluted

Weighted average shares outstanding - basic

Effect of dilutive securities:

Outstanding stock options and unvested stock awards

Mandatory convertible preferred stock

Weighted average shares outstanding - diluted

Earnings per share - basic

Earnings per share - diluted

Potentially dilutive securities:

Outstanding stock options and unvested stock awards

Mandatory convertible preferred stock

100

Year Ended December 31,

2018

2017

2016

2,888

$

4,536

$

—

2,888

—

(55)

4,481

55

2,888

$

4,536

$

1,460

(55)

1,405

—

1,405

849,744,152

831,850,073

822,470,275

8,546,022

—

9,200,873

30,736,504

10,584,270

—

858,290,174

871,787,450

833,054,545

3.40

3.36

$

$

5.39

5.20

$

$

1.71

1.69

$

$

$

$

148,422

—

33,980

—

3,528,683

32,238,000

As of December 31, 2018, we had authorized 100 million shares of 5.50% mandatory convertible preferred stock series A, with 
a par value of $0.00001 per share. There were no preferred shares outstanding as of December 31, 2018 and 2017, respectively.

Potentially dilutive securities were not included in the computation of diluted earnings per share if to do so would have been 
anti-dilutive.

Note 15 – Commitments and Contingencies

Commitments 

Operating Leases

We have non-cancellable operating leases for cell sites, switch sites, retail stores and office facilities with contractual terms 
expiring through 2028. The majority of cell site leases have an initial non-cancelable term of five to ten years with several 
renewal options. In addition, we have operating leases for dedicated transportation lines with varying expiration terms through 
2027. Our commitments under these leases are approximately $2.7 billion for the year ending December 31, 2019, $4.7 billion 
in total for the years ending December 31, 2020 and 2021, $3.3 billion in total for the years ending December 31, 2022 and 
2023 and $3.8 billion in total for years thereafter.

As of December 31, 2018, we were contingently liable for future ground lease payments related to the tower obligations. These 
contingent obligations are not included in the above table as the amounts due are contractually owed by CCI based on the 
subleasing arrangement. See Note 9 – Tower Obligations for further information. 

Total rent expense under operating leases, including dedicated transportation lines, was $3.0 billion, $2.9 billion and $2.8 
billion for the years ended December 31, 2018, 2017 and 2016, respectively, and is classified as Cost of services and Selling, 
general and administrative expense in our Consolidated Statements of Comprehensive Income.

Purchase Commitments

We have commitments for non-dedicated transportation lines with varying expiration terms through 2029. In addition, we have 
commitments to purchase and lease spectrum licenses, wireless devices, network services, equipment, software, marketing 
sponsorship agreements and other items in the ordinary course of business, with various terms through 2043. These amounts 
are not reflective of our entire anticipated purchases under the related agreements but are determined based on the non-
cancelable quantities or termination amounts to which we are contractually obligated.

Our purchase obligations are approximately $3.4 billion for the year ending December 31, 2019, $2.8 billion in total for the 
years ending December 31, 2020 and 2021, $1.8 billion in total for the years ending December 31, 2022 and 2023 and $1.4 
billion in total for the years thereafter. 

In June 2018, we entered into an agreement for the purchase of network equipment totaling approximately $3.5 billion. Based 
on unavoidable spend, the minimum commitment under this agreement is $377 million as of December 31, 2018.

In September 2018, we amended an agreement with a third party to increase the total amount of network equipment to purchase 
by approximately $3.5 billion. Based on unavoidable spend, the minimum commitment under this agreement is $259 million as 
of December 31, 2018.

In September 2018, we signed a reciprocal long-term spectrum lease with Sprint that included a total commitment of $535 
million and an offsetting amount to be received from Sprint for the lease of our spectrum. Lease payments began in the fourth 
quarter of 2018. The reciprocal long-term lease is a distinct transaction from the Merger.

In October 2018, we entered into agreements with a third-party associated with a device upgrade program, trade-in services, 
and device protection products and services offered to our mobile communications customers, with initial terms of one to three 
years. Device protection products and services include reinsurance for device insurance policies and extended warranty 
contracts, mobile security applications, and technical support services.

Interest rate lock derivatives

In October 2018, we entered into interest rate lock derivatives with notional amounts of $9.6 billion. These interest rate lock 
derivatives were designated as cash flow hedges to reduce variability in cash flows due to changes in interest payments 

101

attributable to increases or decreases in the benchmark interest rate during the period leading up to the probable issuance of 
fixed-rate debt. The fair value of interest rate lock derivatives as of December 31, 2018 was $447 million and is included in 
Other current liabilities in our Consolidated Balance Sheets. See Note 7 – Fair Value Measurements for further information.

Renewable Energy Purchase Agreements

During 2018, T-Mobile USA entered four renewable energy purchase agreements (“REPAs”) with third parties. The REPAs are 
based on the expected operation of energy-generating facilities and will remain in effect for terms of between 15 and 20 years 
from the commencement of facility’s entry into commercial operation. Commercial operations are set to begin at the end of 
2019 or 2020. Each REPA consists of an energy forward agreement that is net settled based on energy prices and the energy 
output generated by the facility. We have determined that each of the REPAs does not meet the definition of a derivative 
because the expected energy output of the facility may not be reliably estimated (the arrangement lacks a notional amount). The 
REPAs do not contain any unconditional purchase obligations because amounts under the agreement are not fixed and 
determinable. Our participations in the REPAs did not require upfront investments or capital commitments. We do not control 
the activities that most significantly impact the energy-generating facilities, nor do we receive specific energy output from 
them.

Contingencies and Litigation

Litigation Matters

We are involved in various lawsuits and disputes, claims, government agency investigations and enforcement actions, and other 
proceedings (“Litigation Matters”) that arise in the ordinary course of business, which include claims of patent infringement 
(most of which are asserted by non-practicing entities primarily seeking monetary damages), class actions, and proceedings to 
enforce FCC rules and regulations. The Litigation Matters described above have progressed to various stages and some of them 
may proceed to trial, arbitration, hearing or other adjudication that could result in fines, penalties, or awards of monetary or 
injunctive relief in the coming 12 months if they are not otherwise resolved. We have established an accrual with respect to 
certain of these matters, where appropriate, which is reflected in the Consolidated Financial Statements but that we do not 
consider, individually or in the aggregate, material. An accrual is established when we believe it is both probable that a loss has 
been incurred and an amount can be reasonably estimated. For other matters, where we have not determined that a loss is 
probable or because the amount of loss cannot be reasonably estimated, we have not recorded an accrual due to various factors 
typical in contested proceedings, including but not limited to uncertainty concerning legal theories and their resolution by 
courts or regulators, uncertain damage theories and demands, and a less than fully developed factual record. While we do not 
expect that the ultimate resolution of these proceedings, individually or in the aggregate, will have a material adverse effect on 
our financial position, an unfavorable outcome of some or all of these proceedings could have a material adverse impact on 
results of operations or cash flows for a particular period. This assessment is based on our current understanding of relevant 
facts and circumstances. As such, our view of these matters is subject to inherent uncertainties and may change in the future.

102

Note 16 – Additional Financial Information 

Supplemental Consolidated Balance Sheets Information

Accounts Payable and Accrued Liabilities

Accounts payable and accrued liabilities are summarized as follows:

(in millions)

Accounts payable

Payroll and related benefits

Property and other taxes, including payroll

Interest

Commissions

Network decommissioning

Toll and interconnect

Advertising

Other

December 31,
2018

December 31,
2017

$

5,487

$

6,182

709

642

227

243

65

157

76

135

614

620

253

324

92

109

46

288

Accounts payable and accrued liabilities

$

7,741

$

8,528

Book overdrafts included in accounts payable and accrued liabilities were $630 million and $455 million as of December 31, 
2018 and 2017, respectively.

Hurricane Impacts

During 2018, we recognized $61 million in costs related to hurricanes, including $36 million in incremental costs to maintain 
services primarily in Puerto Rico related to hurricanes that occurred in 2017 and $25 million related to hurricanes that occurred 
in 2018. Additional costs related to a hurricane that occurred in 2018 are expected to be immaterial in the first quarter of 2019.

During 2018, we received reimbursement payments from our insurance carriers of $307 million related to hurricanes, of which 
$93 million was previously accrued for as a receivable as of December 31, 2017. 

We have accrued insurance recoveries related to a hurricane that occurred in 2018 of approximately $5 million for the year 
ended December 31, 2018 as an offset to the costs incurred within Cost of services in our Consolidated Statements of 
Comprehensive Income and as an increase to Other current assets in our Consolidated Balance Sheets.

103

The following table shows the hurricane impacts in our Consolidated Statements of Comprehensive Income for the years ended 
December 31, 2018 and 2017. There were no significant hurricane impacts in 2016.

(in millions, except per share amounts)

Gross

Reim-
bursement

Net

Gross

Reim-
bursement

Net

Year Ended December 31, 2018

Year Ended December 31, 2017

Increase (decrease)

Revenues

Branded postpaid revenues

$

— $

— $

— $

(37) $

— $

    Of which, postpaid phone revenues

Branded prepaid revenues

    Total service revenues

Equipment revenues

Other revenues

Total revenues

Operating expenses

Cost of services

Cost of equipment sales

Selling, general and administrative

    Of which, bad debt expense

Total operating expenses

Operating income (loss)

Net income (loss)

Earnings per share - basic

Earnings per share - diluted

—

—

—

—

—

—

59

1

1

—

61

(61)

(41) $

(0.05) $

(0.05) $

$

$

$

—

—

—

—

71

71

(135)

—

(13)

—

(148)

219

140

0.17

0.17

$

$

$

—

—

—

—

71

71

(76)

1

(12)

—

(87)

158

99

0.12

0.12

(35)

(11)

(48)

(8)

—

(56)

198

4

36

20

238

(294)

$

$

$

(193) $

(0.23) $

(0.22) $

—

—

—

—

—

—

(93)

—

—

—

(93)

93

63

0.07

0.07

$

$

$

(37)

(35)

(11)

(48)

(8)

—

(56)

105

4

36

20

145

(201)

(130)

(0.16)

(0.15)

Supplemental Consolidated Statements of Comprehensive Income Information

Related Party Transactions

We have related party transactions associated with DT or its affiliates in the ordinary course of business, which are included in 
the Consolidated Financial Statements.

The following table summarizes the impact of significant transactions with DT or its affiliates included in Operating expenses 
in the Consolidated Statements of Comprehensive Income:

(in millions)

Discount related to roaming expenses

Fees incurred for use of the T-Mobile brand

Expenses for telecommunications and IT services

International long distance agreement

Year Ended December 31,

2018

2017

2016

$

— $

— $

84

—

36

79

12

55

(15)

74

25

60

We have an agreement with DT for the reimbursement of certain administrative expenses, which were $11 million for each of 
the years ended December 31, 2018, 2017 and 2016.

Note 17 – Guarantor Financial Information

Pursuant to the applicable indentures and supplemental indentures, the long-term debt to affiliates and third parties issued by T-
Mobile USA (“Issuer”) is fully and unconditionally guaranteed, jointly and severally, on a senior unsecured basis by T-Mobile 
(“Parent”) and certain of the Issuer’s 100% owned subsidiaries (“Guarantor Subsidiaries”). See Note 8 – Debt for further 
information.

The guarantees of the Guarantor Subsidiaries are subject to release in limited circumstances only upon the occurrence of certain 
customary conditions. The indentures and credit facilities governing the long-term debt contain covenants that, among other 

104

things, limit the ability of the Issuer and the Guarantor Subsidiaries to incur more debt, pay dividends and make distributions, 
make certain investments, repurchase stock, create liens or other encumbrances, enter into transactions with affiliates, enter into 
transactions that restrict dividends or distributions from subsidiaries, and merge, consolidate or sell, or otherwise dispose of, 
substantially all of their assets. Certain provisions of each of the credit facilities, indentures and supplemental indentures 
relating to the long-term debt restrict the ability of the Issuer to loan funds or make payments to Parent. However, the Issuer 
and Guarantor Subsidiaries are allowed to make certain permitted payments to the Parent under the terms of the indentures and 
the supplemental indentures.

On October 23, 2018, SLMA LLC was formed as a limited liability company in Delaware to serve as an escrow subsidiary to 
facilitate the contemplated issuance of notes by Parent in connection with the Transactions. SLMA LLC is an indirect, 100% 
owned finance subsidiary of Parent, as such term is used in Rule 3-10(b) of Regulation S-X, and has been designated as an 
unrestricted subsidiary under Issuer’s existing debt securities. Any debt securities that may be issued from time to time by 
SLMA LLC will be fully and unconditionally guaranteed by Parent.

Presented below is the condensed consolidating financial information as of December 31, 2018 and 2017, and for the years 
ended December 31, 2018, 2017 and 2016.

105

Condensed Consolidating Balance Sheet Information
December 31, 2018

(in millions)

Assets

Current assets

Cash and cash equivalents

Accounts receivable, net

Equipment installment plan receivables, net

Accounts receivable from affiliates

Inventories

Other current assets

Total current assets

Property and equipment, net (1)

Goodwill

Spectrum licenses

Other intangible assets, net

Investments in subsidiaries, net

Intercompany receivables and note receivables

Equipment installment plan receivables due
after one year, net

Other assets

Total assets

Liabilities and Stockholders' Equity

Current liabilities

Accounts payable and accrued liabilities

$

$

$

Payables to affiliates

Short-term debt

Deferred revenue

Other current liabilities

Total current liabilities

Long-term debt

Long-term debt to affiliates
Tower obligations (1)

Deferred tax liabilities

Deferred rent expense

Negative carrying value of subsidiaries, net

Intercompany payables and debt

Other long-term liabilities

Total long-term liabilities

Total stockholders' equity (deficit)

Parent

Issuer

Guarantor
Subsidiaries

Non-
Guarantor
Subsidiaries

Consolidating
and
Eliminating
Adjustments

Consolidated

$

2

—

—

—

—

—

2

—

—

—

—

1

—

—

—

—

—

1

—

—

—

—

25,314

—

—

—

46,516

5,174

—

7

$

1,079

$

1,510

2,538

11

1,084

1,031

7,253

23,062

1,683

35,559

116

—

—

1,547

1,540

121

259

—

—

—

645

1,025

297

218

—

82

—

—

—

221

$

— $

—

—

—

—

—

—

—

—

—

—

(71,830)

(5,174)

—

(145)

1,203

1,769

2,538

11

1,084

1,676

8,281

23,359

1,901

35,559

198

—

—

1,547

1,623

25,316

$

51,698

$

70,760

$

1,843

$

(77,149) $

72,468

— $

—

—

—

—

—

—

—

—

—

—

—

598

—

598

24,718

228

157

—

—

447

832

10,950

14,582

—

—

—

—

—

20

25,552

25,314

$

7,240

$

273

$

— $

7,741

43

841

698

164

8,986

1,174

—

384

4,617

2,781

676

4,234

926

14,792

46,982

—

—

—

176

449

—

—

2,173

—

—

—

342

21

2,536

(1,142)

—

—

—

—

—

—

—

—

(145)

—

(676)

(5,174)

—

(5,995)

(71,154)

200

841

698

787

10,267

12,124

14,582

2,557

4,472

2,781

—

—

967

37,483

24,718

72,468

Total liabilities and stockholders' equity

$

25,316

$

51,698

$

70,760

$

1,843

$

(77,149) $

(1)  Assets and liabilities for Non-Guarantor Subsidiaries are primarily included in VIEs related to the 2012 Tower Transaction. See Note 9 – Tower 

Obligations for further information.

106

Condensed Consolidating Balance Sheet Information 
December 31, 2017

(in millions)

Assets

Current assets

Cash and cash equivalents

Accounts receivable, net

Equipment installment plan receivables, net

Accounts receivable from affiliates

Inventories

Other current assets

Total current assets

Property and equipment, net (1)

Goodwill

Spectrum licenses

Other intangible assets, net

Investments in subsidiaries, net

Intercompany receivables and note receivables

Equipment installment plan receivables due
after one year, net

Other assets

Total assets

Liabilities and Stockholders' Equity

Current liabilities

Accounts payable and accrued liabilities

$

$

$

Payables to affiliates

Short-term debt

Deferred revenue

Other current liabilities

Total current liabilities

Long-term debt

Long-term debt to affiliates
Tower obligations (1)

Deferred tax liabilities

Deferred rent expense

Negative carrying value of subsidiaries, net

Intercompany payables and debt

Other long-term liabilities

Total long-term liabilities

Parent

Issuer

Guarantor
Subsidiaries

Non-
Guarantor
Subsidiaries

Consolidating
and
Eliminating
Adjustments

Consolidated

$

74

—

—

—

—

—

74

—

—

—

—

1

—

—

—

—

—

1

—

—

—

—

22,534

—

—

—

40,988

8,503

—

2

$

1,086

$

58

$

— $

1,659

2,290

22

1,566

1,275

7,898

21,890

1,683

35,366

217

—

—

1,274

814

256

—

—

—

628

942

306

—

—

—

—

—

—

236

—

—

—

—

—

—

—

—

—

—

(63,522)

(8,503)

—

(140)

1,219

1,915

2,290

22

1,566

1,903

8,915

22,196

1,683

35,366

217

—

—

1,274

912

22,608

$

49,494

$

69,142

$

1,484

$

(72,165) $

70,563

— $

—

—

—

17

17

—

—

—

—

—

—

32

—

32

253

146

999

—

—

1,398

10,911

14,586

—

—

—

—

—

65

25,562

22,534

$

8,014

$

261

$

— $

36

613

779

192

9,634

1,210

—

392

3,677

2,720

629

8,201

866

17,695

41,813

—

—

—

205

466

—

—

2,198

—

—

—

270

4

2,472

(1,454)

—

—

—

—

—

—

—

—

(140)

—

(629)

(8,503)

—

(9,272)

(62,893)

8,528

182

1,612

779

414

11,515

12,121

14,586

2,590

3,537

2,720

—

—

935

36,489

22,559

70,563

Total stockholders' equity (deficit)

22,559

Total liabilities and stockholders' equity

$

22,608

$

49,494

$

69,142

$

1,484

$

(72,165) $

(1)  Assets and liabilities for Non-Guarantor Subsidiaries are primarily included in VIEs related to the 2012 Tower Transaction. See Note 9 – Tower 

Obligations for further information.

107

(in millions)

Revenues

Service revenues

Equipment revenues

Other revenues

Total revenues

Operating expenses

Cost of services, exclusive of depreciation and
amortization shown separately below

Cost of equipment sales

Selling, general and administrative

Depreciation and amortization

Gains on disposal of spectrum licenses

Total operating expense

Operating (loss) income

Other income (expense)

Interest expense

Interest expense to affiliates

Interest income

Other (expense) income, net

Total other (expense) income, net

Income (loss) before income taxes

Income tax expense

Earnings of subsidiaries

Net income

Dividends on preferred stock

Net income attributable to common
stockholders

Net income

Other comprehensive income, net of tax

Other comprehensive income, net of tax

Total comprehensive income

$

$

$

Condensed Consolidating Statement of Comprehensive Income Information
Year Ended December 31, 2018 

Parent

Issuer

Guarantor
Subsidiaries

Non-
Guarantor
Subsidiaries

Consolidating
and
Eliminating
Adjustments

Consolidated

$

— $

— $

30,631

$

2,339

$

(978) $

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

2,888

2,888

—

2,888

2,888

$

$

—

29

29

—

—

11

—

—

11

18

(528)

(522)

23

(87)

(1,114)

(1,096)

—

3,984

2,888

—

2,888

2,888

$

$

10,208

1,113

41,952

6,257

11,238

13,203

6,396

—

37,094

4,858

(114)

(21)

16

33

(86)

4,772

(981)

32

3,823

—

3,823

3,823

$

$

(332)

(332)

116

2

228

2,569

50

1,011

985

90

—

2,136

433

(193)

—

1

—

(192)

241

(48)

—

193

—

193

193

—

(201)

(61)

(1,240)

—

(202)

(1,038)

—

—

(1,240)

—

—

21

(21)

—

—

—

—

(6,904)

(6,904)

—

31,992

10,009

1,309

43,310

6,307

12,047

13,161

6,486

—

38,001

5,309

(835)

(522)

19

(54)

(1,392)

3,917

(1,029)

—

2,888

—

$

$

(6,904) $

2,888

(6,904) $

2,888

216

(332)

2,556

2,556

$

2,556

$

3,939

$

193

$

(6,688) $

108

(in millions)

Revenues

Service revenues

Equipment revenues

Other revenues

Total revenues

Operating expenses

Cost of services, exclusive of depreciation and
amortization shown separately below

Cost of equipment sales

Selling, general and administrative

Depreciation and amortization

Gains on disposal of spectrum licenses

Total operating expenses

Operating income

Other income (expense)

Interest expense

Interest expense to affiliates

Interest income

Other income (expense), net

Total other expense, net

Income (loss) before income taxes

Income tax expense

Earnings (loss) of subsidiaries

Net income

Dividends on preferred stock

Net income attributable to common
stockholders

Net income

Other comprehensive income, net of tax

Other comprehensive income, net of tax

Total comprehensive income

$

$

$

Condensed Consolidating Statement of Comprehensive Income Information
Year Ended December 31, 2017

Parent

Issuer

Guarantor
Subsidiaries

Non-
Guarantor
Subsidiaries

Consolidating
and
Eliminating
Adjustments

Consolidated

$

— $

— $

28,894

$

2,113

$

(847) $

30,160

—

—

—

—

—

—

—

—

—

—

—

—

1

—

1

1

—

4,535

4,536

(55)

4,481

4,536

7

$

$

—

3

3

—

—

—

—

—

—

3

(811)

(560)

29

(88)

(1,430)

(1,427)

—

5,962

4,535

—

4,535

4,535

7

$

$

9,620

879

39,393

6,076

10,849

12,276

5,914

(235)

34,880

4,513

(109)

(23)

10

16

(106)

4,407

1,527

(57)

5,877

—

5,877

5,877

7

$

$

4,543

$

4,542

$

5,884

$

—

212

2,325

24

1,003

856

70

—

1,953

372

(191)

—

—

(1)

(192)

180

(152)

—

28

—

28

28

—

28

$

$

$

(245)

(25)

(1,117)

—

(244)

(873)

—

—

(1,117)

—

—

23

(23)

—

—

—

—

(10,440)

(10,440)

—

9,375

1,069

40,604

6,100

11,608

12,259

5,984

(235)

35,716

4,888

(1,111)

(560)

17

(73)

(1,727)

3,161

1,375

—

4,536

(55)

(10,440) $

4,481

(10,440) $

4,536

(14)

(10,454) $

7

4,543

109

(in millions)

Revenues

Service revenues

Equipment revenues

Other revenues

Total revenues

Operating expenses

Cost of services, exclusive of depreciation
and amortization shown separately below

Cost of equipment sales

Selling, general and administrative

Depreciation and amortization

Cost of MetroPCS business combination

Gains on disposal of spectrum licenses

Total operating expenses

Operating income

Other income (expense)

Interest expense

Interest expense to affiliates

Interest income

Other income (expense), net

Total other expense, net

Income (loss) before income taxes

Income tax expense

Earnings (loss) of subsidiaries

Net income

Dividends on preferred stock

Net income attributable to common
stockholders

Net income

Other comprehensive income, net of tax

Other comprehensive income, net of tax

Total comprehensive income

$

$

$

Condensed Consolidating Statement of Comprehensive Income Information
Year Ended December 31, 2016 

Parent

Issuer

Guarantor
Subsidiaries

Non-
Guarantor
Subsidiaries

Consolidating
and
Eliminating
Adjustments

Consolidated

$

— $

— $

26,613

$

2,023

$

(792) $

27,844

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

1,460

1,460

(55)

—

3

3

—

—

—

—

—

—

—

3

(1,147)

(312)

31

2

(1,426)

(1,423)

—

2,883

1,460

—

9,145

739

36,497

5,707

10,209

11,321

6,165

104

(835)

32,671

3,826

(82)

—

(18)

(8)

(108)

3,718

(857)

(17)

2,844

—

—

195

2,218

24

1,027

868

78

—

—

1,997

221

(189)

—

—

—

(189)

32

(10)

—

22

—

(418)

(18)

(1,228)

—

(417)

(811)

—

—

—

(1,228)

—

—

—

—

—

—

—

—

(4,326)

(4,326)

—

8,727

919

37,490

5,731

10,819

11,378

6,243

104

(835)

33,440

4,050

(1,418)

(312)

13

(6)

(1,723)

2,327

(867)

—

1,460

(55)

1,405

$

1,460

$

2,844

$

22

$

(4,326) $

1,405

1,460

$

1,460

$

2,844

$

22

$

(4,326) $

1,460

2

2

2

1,462

$

1,462

$

2,846

$

2

24

(6)

$

(4,332) $

2

1,462

110

Condensed Consolidating Statement of Cash Flows Information 
Year Ended December 31, 2018

(in millions)

Operating activities

Net cash (used in) provided by operating
activities

Investing activities

Purchases of property and equipment

Purchases of spectrum licenses and other
intangible assets

Proceeds related to beneficial interests in
securitization transactions

Acquisition of companies, net of cash acquired

Equity investment in subsidiary

Other, net

Net cash (used in) provided by investing
activities

Financing activities

Proceeds from issuance of long-term debt

Proceeds from borrowing on revolving credit
facility, net

Repayments of revolving credit facility

Repayments of capital lease obligations

Repayments of short-term debt for purchases of
inventory, property and equipment, net

Repayments of long-term debt

Repurchases of common stock

Intercompany advances, net

Equity investment from parent

Tax withholdings on share-based awards

Cash payments for debt prepayment or debt
extinguishment costs

Intercompany dividend paid

Other, net

Net cash (used in) provided by financing
activities

Change in cash and cash equivalents

Cash and cash equivalents

Beginning of period

End of period

Parent

Issuer

Guarantor
Subsidiaries

Non-
Guarantor
Subsidiaries

Consolidating
and
Eliminating
Adjustments

Consolidated

$

— $

(1,254) $

10,483

$

(5,110) $

(220) $

3,899

(5,505)

(127)

53

(338)

(43)

28

(36)

—

5,353

—

—

—

(5,932)

5,317

—

—

(6,265)

(698)

(300)

(3,349)

—

6,468

—

(146)

(212)

—

(56)

(4,558)

(7)

1,086

—

—

—

(2)

—

—

—

35

43

—

—

(220)

—

(144)

63

58

$

1,079

$

121

$

—

—

—

—

43

—

43

—

—

—

—

—

—

—

—

(43)

—

—

220

—

177

—

—

— $

(5,541)

(127)

5,406

(338)

—

21

(579)

2,494

6,265

(6,265)

(700)

(300)

(3,349)

(1,071)

—

—

(146)

(212)

—

(52)

(3,336)

(16)

1,219

1,203

—

—

—

—

—

—

—

—

—

—

—

—

—

(1,071)

995

—

—

—

—

4

(72)

(72)

$

74

2

$

—

—

—

—

—

(7)

(7)

2,494

6,265

—

—

—

—

—

(7,498)

—

—

—

—

—

1,261

—

1

1

111

(in millions)

Operating activities

Net cash provided by (used in) operating
activities

Investing activities

Purchases of property and equipment

Purchases of spectrum licenses and other
intangible assets

Proceeds related to beneficial interests in
securitization transactions

Equity investment in subsidiary

Other, net

Net cash (used in) provided by investing
activities

Financing activities

Proceeds from issuance of long-term debt

Proceeds from borrowing on revolving credit
facility, net

Repayments of revolving credit facility

Repayments of capital lease obligations

Repayments of short-term debt for purchases of
inventory, property and equipment, net

Repayments of long-term debt

Repurchases of common stock

Intercompany advances, net

Equity investment from parent

Tax withholdings on share-based awards

Dividends on preferred stock

Cash payments for debt prepayment or debt
extinguishment costs

Intercompany dividend paid

Other, net

Net cash provided by (used in) financing
activities

Condensed Consolidating Statement of Cash Flows Information
Year Ended December 31, 2017

Parent

Issuer

Guarantor
Subsidiaries

Non-
Guarantor
Subsidiaries

Consolidating
and
Eliminating
Adjustments

Consolidated

$

1

$

(1,613) $

9,761

$

(4,218) $

(100) $

3,831

—

—

—

(308)

—

(308)

—

—

—

—

—

—

(427)

484

—

—

(55)

—

—

21

23

—

—

—

—

—

—

10,480

2,910

—

—

—

—

—

(14,817)

308

—

—

—

—

—

(5,237)

(5,828)

43

—

1

(11,021)

—

—

(2,910)

(486)

(300)

(10,230)

—

14,300

—

(166)

—

(188)

—

(16)

(1,119)

(2,732)

4

(1,256)

—

—

4,276

—

—

4,276

—

—

—

—

—

—

—

33

—

—

—

—

(100)

—

(67)

(9)

—

—

—

308

—

308

—

—

—

—

—

—

—

—

(308)

—

—

—

100

—

(208)

—

—

— $

(5,237)

(5,828)

4,319

—

1

(6,745)

10,480

2,910

(2,910)

(486)

(300)

(10,230)

(427)

—

—

(166)

(55)

(188)

—

5

(1,367)

(4,281)

5,500

1,219

Change in cash and cash equivalents

(284)

Cash and cash equivalents

Beginning of period

End of period

358

74

$

2,733

2,342

1

$

1,086

$

$

67

58

$

Balances have been revised based on the guidance in ASU 2016-15, “Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and 
Cash Payments.” See Note 1 – Summary of Significant Accounting Policies for further information.

112

 
Condensed Consolidating Statement of Cash Flows Information
Year Ended December 31, 2016 

Parent

Issuer

Guarantor
Subsidiaries

Non-
Guarantor
Subsidiaries

Consolidating
and
Eliminating
Adjustments

Consolidated

$

6

$

(1,335) $

7,516

$

(3,298) $

(110) $

2,779

(in millions)

Operating activities

Net cash provided by (used in) operating
activities

Investing activities

Purchases of property and equipment

Purchases of spectrum licenses and other
intangible assets, including deposits

Proceeds related to beneficial interests in
securitization transactions

Sales of short-term investments

Other, net

Net cash provided by (used in) investing
activities

Financing activities

Proceeds from issuance of long-term debt

Repayments of capital lease obligations

Repayments of short-term debt for purchases of
inventory, property and equipment, net

Repayments of long-term debt

Intercompany advances, net

Tax withholdings on share-based awards

Dividends on preferred stock

Intercompany dividend paid

Other, net

Net cash (used in) provided by financing
activities

Change in cash and cash equivalents

Cash and cash equivalents

Beginning of period

End of period

$

—

—

—

—

—

—

—

—

—

—

—

—

(55)

—

29

(26)

(20)

378

358

—

—

—

2,000

—

2,000

997

—

—

—

(696)

—

—

—

—

301

966

(4,702)

(3,968)

25

998

(8)

(7,655)

—

(205)

(150)

(20)

625

(121)

—

—

(12)

117

(22)

—

—

3,331

—

—

3,331

—

—

—

—

71

—

—

(110)

—

(39)

(6)

—

—

—

—

—

—

—

—

—

—

—

—

—

110

—

110

—

(4,702)

(3,968)

3,356

2,998

(8)

(2,324)

997

(205)

(150)

(20)

—

(121)

(55)

—

17

463

918

1,767

2,364

$

2,733

$

2,342

$

73

67

$

—

— $

4,582

5,500

Balances have been revised based on the guidance in ASU 2016-15, “Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and 
Cash Payments.” See Note 1 – Summary of Significant Accounting Policies of the Notes to the Consolidated Financial Statements, for further 
information.

113

 
Supplementary Data

Quarterly Financial Information (Unaudited)

(in millions, except share and per share amounts)

First Quarter

Second Quarter

Third Quarter

Fourth Quarter

Full Year

2018

Total revenues

Operating income

Net income

Net income attributable to common stockholders

Earnings per share

Basic

Diluted

Weighted average shares outstanding

Basic

Diluted

2017

Total revenues

Operating income

Net income

Dividends on preferred stock

Net income attributable to common stockholders

Earnings per share

Basic

Diluted

Weighted average shares outstanding

Basic

Diluted

Net income includes:

Gains on disposal of spectrum licenses

$

$

$

$

$

$

$

10,455

$

10,571

$

10,839

$

11,445

$

1,282

671

671

1,450

782

782

1,440

795

795

1,137

640

640

0.78

0.78

$

$

0.92

0.92

$

$

0.94

0.93

$

$

0.75

0.75

$

$

43,310

5,309

2,888

2,888

3.40

3.36

855,222,664

862,244,084

847,660,488

852,040,670

847,087,120

853,852,764

849,102,785

856,344,347

849,744,152

858,290,174

9,613

$

10,213

$

10,019

$

10,759

$

40,604

1,037

698

(14)

684

1,416

581

(14)

567

1,323

550

(13)

537

1,112

2,707

(14)

2,693

0.83

0.80

$

$

0.68

0.67

$

$

0.65

0.63

$

$

3.22

3.11

$

$

4,888

4,536

(55)

4,481

5.39

5.20

827,723,034

869,395,984

830,971,528

870,457,181

831,189,779

871,420,065

837,416,683

871,501,578

831,850,073

871,787,450

(37) $

(1) $

(29) $

(168) $

(235)

In December 2017, the TCJA was signed into legislation. The TCJA included numerous changes to existing tax law, including a 
permanent reduction in the federal corporate income tax rate from 35% to 21%. The rate reduction took place on January 1, 
2018. We recognized a net tax benefit of $2.2 billion associated with the enactment of the TCJA in Income tax (expense) 
benefit in our Consolidated Statements of Comprehensive Income in the fourth quarter of 2017, primarily due to a re-
measurement of deferred tax assets and liabilities. 

Earnings per share is computed independently for each quarter and the sum of the quarters may not equal earnings per share for 
the full year.

Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

None.

Item 9A. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures designed to ensure information required to be disclosed in our periodic reports 
filed or submitted under the Exchange Act, is recorded, processed, summarized and reported within the time periods specified 
in the SEC’s rules and forms. Our disclosure controls are also designed to ensure that information required to be disclosed in 
the reports we file or submit under the Exchange Act is accumulated and communicated to our management, including our 
principal executive officer and principal financial officer, as appropriate, to allow timely decisions regarding required 
disclosure.

Under the supervision and with the participation of our management, including our Chief Executive Officer and our Chief 
Financial Officer, we carried out an evaluation of the effectiveness of the design and operation of our disclosure controls and 

114

procedures, as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act. Based upon that evaluation, our Chief 
Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective, as of the 
end of the period covered by this Form 10-K.

The certifications required by Section 302 of the Sarbanes-Oxley Act of 2002 are filed as exhibits 31.1 and 31.2, respectively, 
to this Form 10-K.

Changes in Internal Control over Financial Reporting

Beginning January 1, 2018, we adopted the new revenue standard and implemented significant new revenue accounting 
systems, processes and internal controls over revenue recognition to assist us in the application of the new revenue standard. 
Other than as discussed above, there were no changes in our internal control over financial reporting, as defined in Rules 
13a-15(f) and 15d-15(f) of the Exchange Act, during our most recently completed fiscal quarter that materially affected or are 
reasonably likely to materially affect our internal control over financial reporting. 

Management's Annual Report on Internal Control over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting. Internal 
control over financial reporting is a process to provide reasonable assurance regarding the reliability of our financial reporting 
and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. 
Internal control over financial reporting includes maintaining records that in reasonable detail accurately and fairly reflect our 
transactions, providing reasonable assurance that transactions are recorded as necessary for preparation of our financial 
statements in accordance with generally accepted accounting principles, providing reasonable assurance that receipts and 
expenditures are made in accordance with management authorization, and providing reasonable assurance that unauthorized 
acquisition, use or disposition of company assets that could have a material effect on our financial statements would be 
prevented or detected on a timely basis. Because of its inherent limitations, internal control over financial reporting may not 
prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that 
controls may become inadequate because of changes in conditions, or that the degree of compliance with policies and 
procedures may deteriorate.

Management conducted an evaluation of the effectiveness of our internal control over financial reporting based on the 
framework and criteria established in Internal Control – Integrated Framework (2013), issued by the Committee of Sponsoring 
Organizations of the Treadway Commission. Based on this evaluation, management concluded that our internal control over 
financial reporting was effective as of December 31, 2018.

The effectiveness of our internal control over financial reporting as of December 31, 2018 has been audited by 
PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report herein.

Item 9B. Other Information

None. 

115

PART III.

Item 10. Directors, Executive Officers and Corporate Governance

We maintain a code of ethics applicable to our Chief Executive Officer, Chief Financial Officer, Chief Accounting Officer, 
Treasurer, and Controller, which is a “Code of Ethics for Senior Financial Officers” as defined by applicable rules of the SEC. 
This code is publicly available on our website at investor.t-mobile.com. If we make any amendments to this code other than 
technical, administrative or other non-substantive amendments, or grant any waivers, including implicit waivers, from a 
provision of this code we will disclose the nature of the amendment or waiver, its effective date and to whom it applies on our 
website at investor.t-mobile.com or in a Current Report on Form 8-K filed with the SEC.

The remaining information required by this item, including information about our Directors, Executive Officers and Audit 
Committee, will be incorporated by reference from our definitive Proxy Statement to be filed with the SEC pursuant to 
Regulation 14A or be included in an amendment to this Report.

116

Item 11. Executive Compensation

The information required by this item will be incorporated by reference from our definitive Proxy Statement to be filed with the 
SEC pursuant to Regulation 14A or to be included in an amendment to this Report.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

The information required by this item will be incorporated by reference from our definitive Proxy Statement to be filed with the 
SEC pursuant to Regulation 14A or to be included in an amendment to this Report.

Item 13. Certain Relationships and Related Transactions, and Director Independence

The information required by this item will be incorporated by reference from our definitive Proxy Statement to be filed with the 
SEC pursuant to Regulation 14A or to be included in an amendment to this Report.

Item 14. Principal Accounting Fees and Services

The information required by this item will be incorporated by reference from our definitive Proxy Statement to be filed with the 
SEC pursuant to Regulation 14A or to be included in an amendment to this Report.

PART IV.

Item 15. Exhibits, Financial Statement Schedules

(a) Documents filed as a part of this Form 10-K:

1. Financial Statements

The following financial statements are included in Part II, Item 8 of this Form 10-K:

Report of Independent Registered Public Accounting Firm 
Consolidated Balance Sheets 
Consolidated Statements of Comprehensive Income 
Consolidated Statements of Cash Flows 
Consolidated Statement of Stockholders’ Equity 
Notes to the Consolidated Financial Statements 

2. Financial Statement Schedules

All other schedules have been omitted because they are not required, not applicable, or the required information is otherwise 
included.

3. Exhibits

See the Index to Exhibits immediately following “Item 16. Form 10-K Summary” of this Form 10-K.

Item 16. Form 10–K Summary

None.

117

INDEX TO EXHIBITS

Exhibit No. Exhibit Description

2.1

2.2

2.3

2.4

3.1

3.2

3.3

3.4

4.1

4.2

4.3

4.4

4.5

4.6

4.7

4.8

4.9

Business Combination Agreement, dated as of October 3,
2012, by and among MetroPCS Communications, Inc.,
Deutsche Telekom AG, T-Mobile Zwischenholding GMBH,
T-Mobile Global Holding GMBH and T-Mobile USA, Inc.

Consent Solicitation Letter Agreement, dated December 5,
2012, by and among MetroPCS Communications, Inc. and
Deutsche Telekom AG, amending Exhibit G to the Business
Combination Agreement.

Amendment No. 1 to the Business Combination Agreement
by and among Deutsche Telekom AG, T-Mobile USA, Inc., T-
Mobile Global Zwischenholding GmbH, T-Mobile Global
Holding GmbH and MetroPCS Communications, Inc., dated
April 14, 2013.

Business Combination Agreement, dated as of April 29, 2018,
by and among T-Mobile US, Inc., Huron Merger Sub LLC,
Superior Merger Sub Corporation, Sprint Corporation,
Starburst I, Inc., Galaxy Investment Holdings, Inc., and for
the limited purposes set forth therein, Deutsche Telekom AG,
Deutsche Telekom Holding B.V. and SoftBank Group Corp.

Fourth Amended and Restated Certificate of Incorporation.

Fifth Amended and Restated Bylaws.

Certificate of Designations of 5.50% Mandatory Convertible
Preferred Stock, Series A, of T-Mobile US, Inc., dated
December 12, 2014.

Certificate of Elimination of 5.5% Mandatory Convertible 
Preferred Stock, Series A, Par Value $0.00001 Per Share, 
dated February 15, 2018.

Indenture, dated as of April 28, 2013 among T-Mobile USA,
Inc., the guarantors party thereto, and Deutsche Bank Trust
Company Americas, as trustee.

First Supplemental Indenture, dated as of April 28, 2013
among T-Mobile USA, Inc., the guarantors party thereto, and
Deutsche Bank Trust Company Americas, as trustee.

Second Supplemental Indenture, dated as of April 28, 2013
among T-Mobile USA, Inc., the guarantors party thereto, and
Deutsche Bank Trust Company Americas, as trustee.

Third Supplemental Indenture, dated as of April 28, 2013
among T-Mobile USA, Inc., the guarantors party thereto, and
Deutsche Bank Trust Company Americas, as trustee.

Fourth Supplemental Indenture, dated as of April 28, 2013
among T-Mobile USA, Inc., the guarantors party thereto, and
Deutsche Bank Trust Company Americas, as trustee.

Fifth Supplemental Indenture, dated as of April 28, 2013
among T-Mobile USA, Inc., the guarantors party thereto, and
Deutsche Bank Trust Company Americas, as trustee.

Sixth Supplemental Indenture, dated as of April 28, 2013
among T-Mobile USA, Inc., the guarantors party thereto, and
Deutsche Bank Trust Company Americas, as trustee.

Seventh Supplemental Indenture, dated as of April 28, 2013
among T-Mobile USA, Inc., the guarantors party thereto, and
Deutsche Bank Trust Company Americas, as trustee.

Eighth Supplemental Indenture, dated as of April 28, 2013
among T-Mobile USA, Inc., the guarantors party thereto, and
Deutsche Bank Trust Company Americas, as trustee.

118

Incorporated by Reference

Form
8-K

Date of First
Filing
10/3/2012

Exhibit
Number
2.1

Filed
Herein

8-K

12/7/2012

2.1

8-K

4/15/2013

2.1

8-K

04/30/2018

2.1

8-K

8-K

8-K

5/2/2013

5/2/2013

12/15/2014

3.1

3.2

3.1

8-K

2/22/2018

3.1

8-K

5/2/2013

4.1

8-K

5/2/2013

4.2

8-K

5/2/2013

4.3

8-K

5/2/2013

4.4

8-K

5/2/2013

4.5

8-K

5/2/2013

4.6

8-K

5/2/2013

4.7

8-K

5/2/2013

4.8

8-K

5/2/2013

4.9

Exhibit No. Exhibit Description

4.10

4.11

4.12

4.13

4.14

4.15

4.16

4.17

4.18

4.19

4.20

4.21

4.22

4.23

Ninth Supplemental Indenture, dated as of April 28, 2013
among T-Mobile USA, Inc., the guarantors party thereto, and
Deutsche Bank Trust Company Americas, as trustee.

Tenth Supplemental Indenture, dated as of April 28, 2013
among T-Mobile USA, Inc., the guarantors party thereto, and
Deutsche Bank Trust Company Americas, as trustee.

Eleventh Supplemental Indenture, dated as of May 1, 2013
among T-Mobile USA, Inc., the guarantors party thereto, and
Deutsche Bank Trust Company Americas, as trustee.

Twelfth Supplemental Indenture, dated as of July 15, 2013,
among T-Mobile USA, Inc., the guarantors party thereto, and
Deutsche Bank Trust Company Americas, as trustee.

Thirteenth Supplemental Indenture, dated as of August 21,
2013, by and among T-Mobile USA, Inc., the Guarantors (as
defined therein) and Deutsche Bank Trust Company
Americas, as trustee, including the Form of 5.250% Senior
Note due 2018.

Fourteenth Supplemental Indenture, dated as of November
21, 2013, by and among T-Mobile USA, Inc., the Guarantors
and Deutsche Bank Trust Company Americas, as trustee,
including the Form of 6.125% Senior Note due 2022.

Fifteenth Supplemental Indenture, dated as of November 21,
2013, by and among T-Mobile USA, Inc., the Guarantors and
Deutsche Bank Trust Company Americas, as trustee,
including the Form of 6.500% Senior Note due 2024.

Sixteenth Supplemental Indenture, dated as of August 11,
2014, by and among T-Mobile USA, Inc., the guarantors
party thereto and Deutsche Bank Trust Company Americas,
as trustee.

Seventeenth Supplemental Indenture, dated as of September
5, 2014, by and among T-Mobile USA, Inc., the guarantors
party thereto and Deutsche Bank Trust Company Americas,
as trustee, including the Form of 6.000% Senior Notes due
2023.

Eighteenth Supplemental Indenture, dated as of September 5,
2014, by and among T-Mobile USA, Inc., the guarantors
party thereto and Deutsche Bank Trust Company Americas,
as trustee, including the Form of 6.375% Senior Notes due
2025.
Nineteenth Supplemental Indenture, dated as of September
28, 2015, by and among T-Mobile USA, Inc., the guarantors
party thereto and Deutsche Bank Trust Company Americas,
as trustee.

Twentieth Supplemental Indenture, dated as of November 5,
2015, by and among T-Mobile USA, Inc., the guarantors
party thereto and Deutsche Bank Trust Company Americas,
as Trustee, including the Form of 6.500% Senior Notes due
2026.

Twenty-First Supplemental Indenture, dated as of November
5, 2015, by and among T-Mobile USA, Inc., the guarantors
party thereto and Deutsche Bank Trust Company Americas,
as Trustee, including the Form of 6.000% Senior Notes due
2024.

Twenty-Second Supplemental Indenture, dated as of August
30, 2016, by and among T-Mobile USA, Inc., T-Mobile US,
Inc., the other guarantors party thereto and Deutsche Bank
Trust Company Americas, as trustee.

119

Incorporated by Reference

Form
8-K

Date of First
Filing
5/2/2013

Exhibit
Number
4.10

Filed
Herein

8-K

5/2/2013

4.11

8-K

5/2/2013

4.12

10-Q

8/8/2013

4.18

8-K

8/22/2013

4.1

8-K

11/22/2013

4.1

8-K

11/22/2013

4.2

10-Q

10/28/2014

4.3

8-K

9/5/2014

4.1

8-K

9/5/2014

4.2

10-Q

10/27/2015

4.3

8-K

11/5/2015

4.1

8-K

4/1/2016

4.1

10-Q

10/24/2016

4.3

Exhibit No. Exhibit Description

4.24

4.25

4.26

4.27

4.28

4.29

4.30

4.31

4.32

4.33

4.34

4.35

4.36

Twenty-Third Supplemental Indenture, dated as of March 16,
2017, by and among T-Mobile USA, Inc., T-Mobile US, Inc.,
the other guarantors party thereto and Deutsche Bank Trust
Company Americas, as trustee, including the Form of 4.000%
Senior Note due 2022.

Twenty-Fourth Supplemental Indenture, dated as of March
16, 2017, by and among T-Mobile USA, Inc., T-Mobile US,
Inc., the other guarantors party thereto and Deutsche Bank
Trust Company Americas, as trustee, including the Form of
4.000% Senior Note due 2025.

Twenty-Fifth Supplemental Indenture, dated as of March 16,
2017, by and among T-Mobile USA, Inc., the other
guarantors party thereto and Deutsche Bank Trust Company
Americas, as trustee, including the Form of 5.375% Senior
Note due 2027.

Twenty-Sixth Supplemental Indenture, dated as of April 27,
2017, by and among T-Mobile USA, Inc., T-Mobile US, Inc.,
the other guarantors party thereto and Deutsche Bank Trust
Company Americas, as trustee, including the Form of 4.000%
Senior Note due 2022-1.

Twenty-Seventh Supplemental Indenture, dated as of April
28, 2017, by and among T-Mobile USA, Inc., T-Mobile US,
Inc., the other guarantors party thereto and Deutsche Bank
Trust Company Americas, as trustee, including the Form of
5.125% Senior Note due 2025-1.

Twenty-Eighth Supplemental Indenture, dated as of April 28,
2017, by and among T-Mobile USA, Inc., T-Mobile US, Inc.,
the other guarantors party thereto and Deutsche Bank Trust
Company Americas, as trustee, including the Form of 5.375%
Senior Note due 2027-1.

Twenty-Ninth Supplemental Indenture, dated as of May 9,
2017, by and among T-Mobile USA, Inc., T-Mobile US, Inc.,
the other guarantors party thereto and Deutsche Bank Trust
Company Americas, as trustee, including the Form of 5.300%
Senior Notes due 2021.

Thirtieth Supplemental Indenture, dated as of May 9, 2017,
by and among T-Mobile USA, Inc., T-Mobile US, Inc., the
other guarantors party thereto and Deutsche Bank Trust
Company Americas, as trustee.

Thirty-First Supplemental Indenture, dated as of January 25,
2018, by and among T-Mobile USA, Inc., T-Mobile US, Inc.,
the other guarantors party thereto and Deutsche Bank Trust
Company Americas, as trustee.

Thirty-Second Supplemental Indenture, dated as of January
25, 2018, by and among T-Mobile USA, Inc., T-Mobile US,
Inc., the other guarantors party thereto and Deutsche Bank
Trust Company Americas, as trustee, including the Form of
4.500% Senior Note due 2026.

Thirty-Third Supplemental Indenture, dated as of January 25,
2018, by and among T-Mobile USA, Inc., T-Mobile US, Inc.,
the other guarantors party thereto and Deutsche Bank Trust
Company Americas, as trustee, including the Form of 4.750%
Senior Note due 2028.

Noteholder Agreement dated as of April 28, 2013, by and
between Deutsche Telekom AG and T-Mobile USA, Inc.

Thirty-Fourth Supplemental Indenture, dated as of April 26,
2018, by and among T-Mobile USA, Inc., T-Mobile US, Inc.,
the other guarantors party thereto and Deutsche Bank Trust
Company Americas, as trustee.

120

Incorporated by Reference

Form
8-K

Date of First
Filing
3/16/2017

Exhibit
Number
4.1

Filed
Herein

8-K

3/16/2017

4.2

8-K

3/16/2017

4.3

8-K

4/28/2017

4.1

8-K

4/28/2017

4.2

8-K

4/28/2017

4.3

8-K

5/9/2017

4.1

8-K

5/9/2017

4.2

10-K

2/8/2018

4.56

8-K

1/25/2018

4.1

8-K

1/25/2018

4.2

8-K

5/2/2013

4.13

10-Q

5/1/2018

4.5

Incorporated by Reference

Form
8-K

Date of First
Filing
5/4/2018

Exhibit
Number
4.1

Filed
Herein

8-K

5/4/2018

4.2

8-K

5/21/2018

4.1

8-K

12/21/2018

4.1

10-Q

8/8/2013

10.1

10-Q

8/8/2013

10.2

10-Q

8/8/2013

10.3

10-Q

8/8/2013

10.4

10-Q

8/8/2013

10.5

X

X

X

Exhibit No. Exhibit Description

4.37

4.38

4.39

4.40

4.41

10.1

10.2

10.3

10.4

10.5

10.6

10.7

Thirty-Fifth Supplemental Indenture, dated as of April 30,
2018, by and among T-Mobile USA, Inc., T-Mobile US, Inc.,
the other guarantors party thereto and Deutsche Bank Trust
Company Americas, as trustee, including the Form of 4.500%
Senior Note due 2026-1.

Thirty-Sixth Supplemental Indenture, dated as of April 30,
2018, by and among T-Mobile USA, Inc., T-Mobile US, Inc.,
the other guarantors party thereto and Deutsche Bank Trust
Company Americas, as trustee, including the Form of 4.750%
Senior Note due 2028-1.

Thirty-Seventh Supplemental Indenture, dated as of May 20,
2018, by and among T-Mobile USA, Inc., the guarantors
party thereto, and Deutsche Bank Trust Company Americas.

Thirty-Eighth Supplemental Indenture, dated as of
December 20, 2018, by and among T-Mobile USA, Inc., the
guarantors party thereto, and Deutsche Bank Trust Company
Americas.

Thirty-Ninth Supplemental Indenture, dated as of
December 20, 2018, by and among T-Mobile USA, Inc., the
guarantors party thereto, and Deutsche Bank Trust Company
Americas.

Master Agreement, dated as of September 28, 2012, among T-
Mobile USA, Inc., Crown Castle International Corp., and
certain T-Mobile and Crown subsidiaries.

Amendment No. 1, dated as of November 30, 2012, to Master
Agreement, dated as of November 30, 2012, among Crown
Castle International Corp., and certain T-Mobile and Crown
subsidiaries.

Settlement and Amendment No. 2, dated as of May 8, 2014,
to Master Agreement, dated as of November 2012, among
Crown Castle International Corp., and certain T-Mobile and
Crown subsidiaries.
Master Prepaid Lease, dated as of November 30, 2012, by
and among T-Mobile USA Tower LLC, T-Mobile West Tower
LLC, T-Mobile USA, Inc. and CCTMO LLC.

MPL Site Master Lease Agreement, dated as of November 30,
2012, by and among Cook Inlet/VS GSM IV PCS Holdings,
LLC, T-Mobile Central LLC, T-Mobile South LLC, Powertel/
Memphis, Inc., Voicestream Pittsburgh, L.P., T-Mobile West
LLC, T-Mobile Northeast LLC, Wireless Alliance, LLC,
Suncom Wireless Operating Company, L.L.C., T-Mobile
USA, Inc. and CCTMO LLC.

First Amendment, dated as of November 30, 2012, to MPL
Site Master Lease Agreement, dated as of November 30,
2012, by and among Cook Inlet/VS GSM IV PCS Holdings,
LLC, T-Mobile Central LLC, T-Mobile South LLC, Powertel/
Memphis, Inc., Voicestream Pittsburgh, L.P., T-Mobile West
LLC, T-Mobile Northeast LLC, Wireless Alliance, LLC,
Suncom Wireless Operating Company, L.L.C., T-Mobile
USA, Inc. and CCTMO LLC.

Second Amendment, dated as of October 31, 2014, to MPL 
Site Master Lease Agreement, dated as of November 30, 
2012, by and among Cook Inlet/VS GSM IV PCS Holdings, 
LLC, T-Mobile Central LLC, T-Mobile South LLC, Powertel/
Memphis, Inc., Voicestream Pittsburgh, L.P., T-Mobile West 
LLC, T-Mobile Northeast LLC, Suncom Wireless Operating 
Company, L.L.C., T-Mobile USA, Inc. 

121

Exhibit No. Exhibit Description

10.8

10.9

10.10

10.11

10.12

Sale Site Master Lease Agreement, dated as of November 30,
2012, by and among Cook Inlet/VS GSM IV PCS Holdings,
LLC, T-Mobile Central LLC, T-Mobile South LLC, Powertel/
Memphis, Inc., Voicestream Pittsburgh, L.P., T-Mobile West
LLC, T-Mobile Northeast LLC, Wireless Alliance, LLC,
Suncom Wireless Operating Company, L.L.C., T-Mobile
USA, Inc., T3 Tower 1 LLC and T3 Tower 2 LLC.

First Amendment, dated as of November 30, 2012, to Sale
Site Master Lease Agreement, dated as of November 30,
2012, by and Cook Inlet/VS GSM IV PCS Holdings, LLC, T-
Mobile Central LLC, T-Mobile South LLC, Powertel/
Memphis, Inc., Voicestream Pittsburgh, L.P., T-Mobile West
LLC, T-Mobile Northeast LLC, Wireless Alliance, LLC,
Suncom Wireless Operating Company, L.L.C., T-Mobile
USA, Inc., T3 Tower 1 LLC and T3 Tower 2 LLC.

Second Amendment, dated as of October 31, 2014, to Sale
Site Master Lease Agreement, dated as of November 30,
2012, by and Cook Inlet/VS GSM IV PCS Holdings, LLC, T-
Mobile Central LLC, T-Mobile South LLC, Powertel/
Memphis, Inc., Voicestream Pittsburgh, L.P., T-Mobile West
LLC, T-Mobile Northeast LLC, Suncom Wireless Operating
Company, L.L.C., T-Mobile USA, Inc., T3 Tower 1 LLC and
T3 Tower 2 LLC.

Settlement Technical Closing Agreement, dated as of October
1, 2014, among Crown Castle International Corp., and certain
T-Mobile and Crown subsidiaries.
Management Agreement, dated as of November 30, 2012, by
and among Suncom Wireless Operating Company, L.L.C.,
Cook Inlet/VS GSM IV PCS Holdings, LLC, T-Mobile
Central LLC, T-Mobile South LLC, Powertel/Memphis, Inc.,
Voicestream Pittsburgh, L.P., T-Mobile West LLC, T-Mobile
Northeast LLC, Wireless Alliance, LLC, Suncom Wireless
Property Company, L.L.C., T-Mobile USA Tower LLC, T-
Mobile West Tower LLC, CCTMO LLC, T3 Tower 1 LLC
and T3 Tower 2 LLC.

Incorporated by Reference

Form
10-Q

Date of First
Filing
8/8/2013

Exhibit
Number
10.6

Filed
Herein

10-Q

8/8/2013

10.7

X

X

10-Q

8/8/2013

10.8

10.13

Stockholder’s Agreement dated as of April 30, 2013 by and
between MetroPCS Communications, Inc. and Deutsche
Telekom AG.

8-K

5/2/2013

10.1

10.14 Waiver of Required Approval Under Section 3.6(a) of the

10-Q

8/8/2013

10.10

10.15

10.16

10.17

10.18

Stockholder’s Agreement, dated August 7, 2013, between T-
Mobile US, Inc. and Deutsche Telekom AG.

License Agreement dated as of April 30, 2013 by and
between T-Mobile US, Inc. and Deutsche Telekom AG.

License Exchange Agreement, dated January 5, 2014, among
T-Mobile USA, Inc., T-Mobile License LLC, Cellco
Partnership d/b/a Verizon Wireless, Verizon Wireless (VAW)
LLC, Athens Cellular, Inc. and Verizon Wireless of the East
LP.

License Purchase Agreement, dated January 5, 2014, among
T-Mobile USA, Inc., T-Mobile License LLC and Cellco
Partnership d/b/a Verizon Wireless.

Receivables Sale and Conveyancing Agreement, dated as of
February 26, 2014, among T-Mobile West LLC, T-Mobile
Central LLC, T-Mobile Northeast LLC and T-Mobile South
LLC, as sellers, and T-Mobile PCS Holdings LLC, as
purchaser.

8-K

8-K

5/2/2013

1/6/2014

10.2

10.1

8-K

1/6/2014

10.2

8-K

3/4/2014

10.1

122

Incorporated by Reference

Form
10-K

Date of First
Filing
2/19/2015

Exhibit
Number
10.55

Filed
Herein

10-Q

4/28/2015

10.5

8-K

3/4/2014

10.2

10-K

2/19/2015

10.56

10-Q

4/28/2015

10.6

10-K

2/14/2017

10.33

10-Q

7/20/2017

10.1

8-K

12/6/2016

10.1

10-Q

7/20/2017

10.2

10-K

2/8/2018

10.31

Exhibit No. Exhibit Description

10.19

10.20

10.21

10.22

10.23

10.24

10.25

10.26

10.27

10.28

Joinder and First Amendment to the Receivables Sale and
Conveyancing Agreement, dated as of November 28, 2014,
among Powertel/Memphis, Inc., Triton PCS Holdings
Company L.L.C., T-Mobile West LLC, T-Mobile Central
LLC, T-Mobile Northeast LLC and T-Mobile South LLC, as
sellers, and T-Mobile PCS Holdings LLC, as purchaser.

Joinder and Second Amendment to the Receivables Sale and
Conveyancing Agreement, dated as of January 9, 2015,
among SunCom Wireless Operating Company, LLC,
Powertel/Memphis, Inc., Triton PCS Holdings Company
L.L.C., T-Mobile West LLC, T-Mobile Central LLC, T-
Mobile Northeast LLC and T-Mobile South LLC, as sellers,
and T-Mobile PCS Holdings LLC, as purchaser.

Receivables Sale and Contribution Agreement, dated as of
February 26, 2014, between T-Mobile PCS Holdings LLC, as
seller, and T-Mobile Airtime Funding LLC, as purchaser.

First Amendment to the Receivables Sale and Contribution
Agreement, dated as of November 28, 2014, between T-
Mobile PCS Holdings LLC, as seller, and T-Mobile Airtime
Funding LLC, as purchaser.

Second Amendment to the Receivables Sale and Contribution
Agreement, dated as of January 9, 2015, by and among T-
Mobile PCS Holdings LLC, as seller, and T-Mobile Airtime
Funding LLC, as purchaser.

Third Amendment to the Receivables Sale and Contribution
Agreement, dated as of November 30, 2016, by and among T-
Mobile PCS Holdings LLC, as seller, and T-Mobile Airtime
Funding LLC, as purchaser.

Fourth Amendment to the Receivables Sale and Contribution
Agreement, dated as of May 5, 2017, by and among T-Mobile
PCS Holdings LLC, as seller, and T-Mobile Airtime Funding
LLC, as purchaser.

Second Amended and Restated Master Receivables Purchase
Agreement, dated as of November 30, 2016, among T-Mobile
Airtime Funding LLC, as funding seller, Billing Gate One
LLC, as purchaser, Landesbank Hessen-Thüringen
Girozentrale, as bank purchasing agent, The Bank of Tokyo
Mitsubishi UFJ, Ltd., as bank collection agent, T-Mobile PCS
Holdings LLC, as servicer, and T-Mobile US, Inc., as
performance guarantor.

First Amendment to Second Amended and Restated Master
Receivables Purchase Agreement, dated as of May 5, 2017,
among T-Mobile Airtime Funding LLC, as funding seller,
Billing Gate One LLC, as purchaser, Landesbank Hessen-
Thüringen Girozentrale, as bank purchasing agent, The Bank
of Tokyo Mitsubishi UFJ, Ltd., as bank collection agent, T-
Mobile PCS Holdings LLC, as servicer, and T-Mobile US,
Inc., as performance guarantor.

Third Amended and Restated Master Receivables Purchase
Agreement, dated as of February 5, 2018, among T-Mobile
Airtime Funding LLC, as funding seller, Billing Gate One
LLC, as purchaser, Landesbank Hessen-Thüringen
Girozentrale, as bank purchasing agent, The Bank of Tokyo
Mitsubishi UFJ, Ltd., as bank collection agent, TMobile PCS
Holdings LLC, as servicer, and T-Mobile US, Inc., as
performance guarantor.

123

Incorporated by Reference

Form
10-Q

Date of First
Filing
5/1/2018

Exhibit
Number
10.13

Filed
Herein

X

8-K

11/12/2015

10.1

10-Q

4/24/2017

10.3

10-Q

4/24/2017

10.4

10-Q

4/24/2017

10.5

8-K

7/27/2017

10.1

8-K

3/30/2018

10.1

8-K

12/30/2016

10.3

8-K

1/25/2017

10.1

Exhibit No. Exhibit Description

10.29

10.30

10.31

10.32

10.33

10.34

10.35

10.36

10.37

10.38

First Amendment, dated as of April 3, 2018, to Third
Amended and Restated Master Receivables Purchase
Agreement, dated as of February 5, 2018, among T-Mobile
Airtime Funding LLC, as funding seller, Billing Gate One
LLC, as purchaser, Landesbank Hessen-Thüringen
Girozentrale, as bank purchasing agent, MUFG Bank
(Europe) N.V, Germany Branch, as bank collection agent, T-
Mobile PCS Holdings LLC, as servicer, and T-Mobile US,
Inc. and T-Mobile USA, Inc., as performance guarantors.

Second Amendment to the Third Amended and Restated
Master Receivables Purchase Agreement, dated as of
November 21, 2018, by and among T-Mobile Airtime
Funding LLC, as funding seller, Billing Gate One LLC, as
purchaser, Landesbank Hessen-Thüringen Girozentrale, as
bank purchasing agent, MUFG Bank (Europe) N.V. Germany
Branch, as bank collection agent, T-Mobile PCS Holdings
LLC, as servicer, and T-Mobile US, Inc., as performance

Term Loan Credit Agreement, dated as of November 9, 2015,
among T-Mobile USA, Inc., the lenders party thereto and
Deutsche Bank AG New York Branch, as administrative agent
and collateral agent.

Amendment No.1 to the Term Loan Credit Agreement, dated
as of January 25, 2017, among T-Mobile USA, Inc., the
guarantors party thereto, the lenders party thereto and
Deutsche Bank AG New York Branch, as administrative agent
and collateral agent.

Amendment No.2 to the Term Loan Credit Agreement, dated
as of January 25, 2017, among T-Mobile USA, Inc., the
guarantors party thereto, the lenders party thereto and
Deutsche Bank AG New York Branch, as administrative agent
and collateral agent.

Amendment No.3 to the Term Loan Credit Agreement, dated
as of March 28, 2017, among T-Mobile USA, Inc., the
guarantors party thereto, the lenders party thereto and
Deutsche Bank AG New York Branch, as administrative agent
and collateral agent.

Amendment No.4 to the Term Loan Credit Agreement, dated
as of July 25, 2017, among T-Mobile USA, Inc., the
guarantors party thereto, the lenders party thereto and
Deutsche Bank AG New York Branch, as administrative agent
and collateral agent.

Amendment No. 5 to the Term Loan Credit Agreement, dated
as of March 29, 2018, among T-Mobile USA, Inc., the
guarantors party thereto, the lenders party thereto and
Deutsche Bank AG New York Branch, as administrative agent
and collateral agent.
First Incremental Facility Amendment, dated as of December
29, 2016, to the Term Loan Credit Agreement, dated as of
November 9, 2015, by and among T-Mobile USA, Inc., the
guarantors party thereto, the several banks and other financial
institutions or entities from time to time parties thereto as
lenders, and Deutsche Bank AG New York Branch, as
administrative agent.

Second Incremental Facility Amendment, dated as of January
25, 2017, to the Term Loan Credit Agreement, dated as of
November 9, 2015, as amended by that certain First
Incremental Facility Amendment dated as of December 29,
2016, by and among T-Mobile USA, Inc., the guarantors
party thereto, the several banks and other financial
institutions or entities from time to time parties thereto as
lenders, and Deutsche Bank AG New York Branch, as
administrative agent.

124

Exhibit No. Exhibit Description

10.39

10.40

10.41

10.42

10.43

10.44

10.45

10.46

10.47

10.48

10.49

Second Amended and Restated Receivables Sale Agreement,
dated as of August 21, 2017, by and between T-Mobile
Financial LLC, as seller, and T-Mobile Handset Funding
LLC, as purchaser.

Third Amended and Restated Receivables Sale Agreement, 
dated as of October 23, 2018, by and between T-Mobile 
Financial LLC, as seller, and T-Mobile Handset Funding 
LLC, as purchaser.

Second Amended and Restated Receivables Purchase and
Administration Agreement, dated as of August 21, 2017, by
and among T-Mobile Handset Funding LLC, as transferor, T-
Mobile Financial LLC, as servicer, T-Mobile US, Inc., as
performance guarantor, Royal Bank of Canada, as
administrative agent, and certain financial institutions party
thereto

First Amendment, dated as of December 18, 2017, to the 
Second Amended and Restated Receivables Purchase and 
Administration Agreement, dated as of August 21, 2017, by 
and among T-Mobile Handset Funding LLC, as transferor, T-
Mobile Financial LLC, as servicer, T-Mobile US, Inc., as 
performance guarantor, Royal Bank of Canada, as 
administrative agent, and certain financial institutions party 
thereto.

Second Amendment, dated as of April 3, 2018, to the Second 
Amended and Restated Receivables Purchase and 
Administration Agreement, dated as of August 21, 2017, 
among T-Mobile Handset Funding LLC, as transferor, T-
Mobile Financial LLC, as servicer, T-Mobile US, Inc. and T-
Mobile USA, Inc., as performance guarantors, Royal Bank of 
Canada, as administrative agent, and certain financial 
institutions party thereto.

Third Amended and Restated Receivables Purchase and
Administration Agreement, dated as of October 23, 2018, by
and among T-Mobile Handset Funding LLC, as transferor, T-
Mobile Financial LLC, as servicer, T-Mobile US, Inc., as
performance guarantor, Royal Bank of Canada, as
administrative agent, and certain financial institutions party
thereto.

First Amendment, dated as of December 21, 2018, to Third
Amended and Restated Receivables Purchase and
Administration Agreement, dated as of October 23, 2018, by
and among T-Mobile Handset Funding LLC, as transferor, T-
Mobile Financial LLC, as servicer, T-Mobile US, Inc., as
performance guarantor, Royal Bank of Canada, as
administrative agent, and certain financial institutions party
thereto

Purchase Agreement, dated as of March 6, 2016, among T-
Mobile USA, Inc., the guarantor party thereto and Deutsche
Telekom AG.

Amendment No. 1 to Purchase Agreement, dated as of
October 28, 2016, to Purchase Agreement, dated as of March
6, 2016, by and among T-Mobile USA, Inc., the guarantors
party thereto and Deutsche Telekom AG.

Purchase Agreement, dated as of April 25, 2016, among T-
Mobile USA, Inc., the guarantor party thereto and Deutsche
Telekom AG.

Amendment No. 1 to Purchase Agreement, dated as of
October 28, 2016, to Purchase Agreement, dated as of April
25, 2016, by and among T-Mobile USA, Inc., the guarantors
party thereto and Deutsche Telekom AG.

125

Incorporated by Reference

Form
10-Q

Date of First
Filing
10/23/2017

Exhibit
Number
10.2

Filed
Herein

10-Q

10/30/2018

10.2

10-Q

10/23/2017

10.3

10-K

2/8/2018

10.48

10-Q

5/1/2018

10.14

10-Q

10/30/2018

10.1

X

8-K

3/7/2016

1.1

8-K

11/2/2016

10.1

8-K

4/26/2016

1.1

8-K

11/2/2016

10.2

Exhibit No. Exhibit Description

10.50

10.51

10.52

10.53

10.54

10.55

10.56

10.57

Purchase Agreement, dated as of April 29, 2016, among T-
Mobile USA, Inc., the guarantor party thereto and Deutsche
Telekom AG.

Amendment No. 1 to Purchase Agreement, dated as of
October 28, 2016, to Purchase Agreement, dated as of April
29, 2016, by and among T-Mobile USA, Inc., the guarantors
party thereto and Deutsche Telekom AG.

Purchase Agreement, dated as of March 13, 2017, among T-
Mobile USA, Inc., the guarantors party thereto and Deutsche
Telekom AG.

Purchase Agreement, dated as of January 22, 2018, among T-
Mobile USA, Inc., the guarantors party thereto and Deutsche
Telekom AG.

Unsecured Revolving Credit Agreement, dated as of
December 29, 2016, by and among T-Mobile US, Inc., T-
Mobile USA, Inc., the several banks and other financial
institutions or entities from time to time party thereto as
lenders, and Deutsche Telekom AG, as administrative agent.

Amendment No. 1, dated as of March 29, 2018, to the
Unsecured Revolving Credit Agreement, dated as of
December 29, 2016, among T-Mobile USA, Inc., T-Mobile
US, Inc., the other guarantors party thereto and Deutsche
Telekom AG, as administrative agent and lender.

Secured Revolving Credit Agreement, dated as of December
29, 2016, by and among T-Mobile US, Inc., T-Mobile USA,
Inc., the several banks and other financial institutions or
entities from time to time party thereto as lenders, and
Deutsche Telekom AG, as administrative agent.

Amendment No. 1, dated as of March 29, 2018, to the
Secured Revolving Credit Agreement, dated as of December
29, 2016, among T-Mobile USA, Inc., T-Mobile US, Inc., the
other guarantors party thereto and Deutsche Telekom AG, as
administrative agent and lender.

Incorporated by Reference

Form
8-K

Date of First
Filing
4/29/2016

Exhibit
Number
1.1

Filed
Herein

8-K

11/2/2016

10.3

8-K

3/16/2017

10.1

8-K

1/25/2018

10.1

8-K

12/30/2016

10.1

8-K

3/30/2018

10.3

8-K

12/30/2016

10.2

8-K

3/30/2018

10.2

10.58*

Amended and Restated MetroPCS Communications, Inc.
2004 Equity Incentive Compensation Plan.

10.59* MetroPCS Communications, Inc. 2010 Equity Incentive

Compensation Plan.

10.60*

10.61*

Form Change in Control Agreement for MetroPCS
Communications, Inc.
Form Change in Control Agreement Amendment for
MetroPCS Communications, Inc.

10.62* MetroPCS Communications, Inc. Employee Non-qualified
Stock Option Award Agreement relating to the MetroPCS
Communications, Inc. Amended and Restated 2004 Equity
Incentive Compensation Plan.

10.63*

10.64*

10.65*

10.66*

Form Amendment to the MetroPCS Communications, Inc.
Notice of Grant of Stock Option relating to the Second
Amended and Restated 1995 Stock Option Plan of
MetroPCS, Inc.

Form MetroPCS Communications, Inc. 2010 Equity Incentive
Compensation Plan Employee Non-Qualified Stock Option
Award Agreement.

Amended and Restated Employment Agreement of J. Braxton
Carter dated as of December 20, 2017.

First Amendment, dated as of April 28, 2018, to Amended 
and Restated Employment Agreement, dated as of December 
20, 2017, between T-Mobile US, Inc. and J. Braxton Carter.

S-1/A

2/27/2007

 10.1(a)

Schedule
14A

4/19/2010

 Annex A

10-Q

8/9/2010

10.2

10-Q

10/30/2012

10.1

10-K

3/1/2013

 10.9(a)

10-Q

8/9/2010

10.5

10-K

2/29/2012

10.12

10-K

2/8/2018

10.69

10-Q

5/1/2018

10.12

126

10.67*

10.68*

10.69*

10.70*

10.71*

10.72*

10.73*

10.74*

10.75*

10.76*

10.77*

10.78*

10.79*

10.80*

10.81*

10.82*

10.83*

10.84*

10.85*

10.86*

10.87*

10.88

Exhibit No. Exhibit Description

Employment Agreement of Thomas C. Keys dated as of
January 25, 2013.

Amended and Restated Employment Agreement of John J.
Legere dated as of March 28, 2017.

First Amendment, dated as of April 28, 2018, to Amended
and Restated Employment Agreement, dated as of April 1,
2017, between T-Mobile US, Inc. and John Legere.

T-Mobile US, Inc. Amended and Restated Compensation
Term Sheet for Michael Sievert Effective as of January 1,
2017.

First Amendment, dated as of April 28, 2018, to Updated
Compensation Term Sheet, dated as of January 1, 2017,
between T-Mobile US, Inc. and G. Michael Sievert.

Form of Severance Letter Agreement.

Form of Indemnification and Advancement Agreement.

T-Mobile US, Inc. Non-Qualified Deferred Executive
Compensation Plan (As Amended and Restated Effective as
of January 1, 2014).

First Amendment to T-Mobile US, Inc. Non-Qualified 
Deferred Executive Compensation Plan

T-Mobile US, Inc. Executive Continuity Plan as Amended
and Restated Effective as of January 1, 2014.

Incorporated by Reference

Form
8-K

Date of First
Filing
5/2/2013

Exhibit
Number
10.4

Filed
Herein

10-Q

4/24/2017

10.7

10-Q

5/1/2018

10.10

10-Q

4/24/2017

10.6

10-Q

5/1/2018

10.11

10-Q

10-K

10-K

5/1/2018

2/8/2018

2/25/2014

10.9

10.76

10.39

8-K

10/25/2013

10.1

X

T-Mobile US, Inc. 2013 Omnibus Incentive Plan (as amended
and restated on August 7, 2013).

10-Q

8/8/2013

10.20

Amendment to T-Mobile US, Inc. 2013 Omnibus Incentive
Plan (as amended and restated on August 7, 2013).

Schedule
14A

4/26/2018

Annex A

T-Mobile USA, Inc. 2011 Long-Term Incentive Plan.

Annual Incentive Award Notice under the 2013 Omnibus
Incentive Plan.

Form of Restricted Stock Unit Award Agreement for Non-
Employee Directors under the T-Mobile US, Inc. 2013
Omnibus Incentive Plan.

Form of Restricted Stock Unit Award Agreement (Time-
Vesting) for Executive Officers under the T-Mobile US, Inc.
2013 Omnibus Incentive Plan.

Form of Restricted Stock Unit Award Agreement
(Performance-Vesting) for Executive Officers under the T-
Mobile US, Inc. 2013 Omnibus Incentive Plan.

Form of Restricted Stock Unit Award Agreement
(Performance-Vesting) with Deferral Option for Executive
Officers under the T-Mobile US, Inc. 2013 Omnibus
Incentive Plan.

Form of Restricted Stock Unit Award Agreement (Time-
Vesting) with Deferral Option for Executive Officers under
the T-Mobile US, Inc. 2013 Omnibus Incentive Plan.

T-Mobile US, Inc. 2014 Employee Stock Purchase Plan.

Amended Director Compensation Program effective as of
May 1, 2013 (amended June 4, 2014 and further amended on
June 1, 2015, June 16, 2016 and June 13, 2017).

Support Agreement, dated as of April 29, 2018, by and among
SoftBank Group Corp., SoftBank Group Capital Limited,
Starburst I, Inc., Galaxy Investment Holdings, Inc., T-Mobile
US, Inc., and Deutsche Telekom AG.

10-Q

10-K

8/8/2013

2/25/2014

10.21

10.45

8-K

6/4/2013

10.2

10-Q

8/8/2013

10.24

10-Q

8/8/2013

10.25

10-K

2/19/2015

10.43

10-K

2/19/2015

10.44

S-8

10-Q

2/19/2015

7/20/2017

99.1

10.4

8-K

04/30/2018

10.1

127

Exhibit No. Exhibit Description

10.89

10.90

10.91

21.1

23.1

24.1

31.1

31.2

32.1**

32.2**

Commitment Letter, dated as of April 29, 2018, by and
among T-Mobile USA, Inc. and the financial institutions party
thereto.

Amended and Restated Commitment Letter, dated as of
May 15, 2018, by and among T-Mobile USA, Inc. and the
financial institutions party thereto.

Financing Matters Agreement, dated as of April 29, 2018, by
and between T-Mobile USA, Inc. and Deutsche Telekom AG.

Subsidiaries of Registrant.

Consent of PricewaterhouseCoopers LLP.

Power of Attorney, pursuant to which amendments to this
Form 10-K may be filed (included on the signature page
contained in Part IV of the Form 10-K).

Certifications of Chief Executive Officer Pursuant to
Section 302 of the Sarbanes-Oxley Act of 2002.

Certifications of Chief Financial Officer Pursuant to
Section 302 of the Sarbanes-Oxley Act of 2002.

Certification of Chief Executive Officer Pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002.

Certification of Chief Financial Officer Pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002.

101.INS XBRL Instance Document.

101.SCH XBRL Taxonomy Extension Schema Document.

101.CAL XBRL Taxonomy Extension Calculation Linkbase Document.

101.DEF XBRL Taxonomy Extension Definition Linkbase Document.

101.LAB XBRL Taxonomy Extension Label Linkbase Document.

101.PRE XBRL Taxonomy Extension Presentation Linkbase

Document.

Incorporated by Reference

Form
8-K

Date of First
Filing
04/30/2018

Exhibit
Number
10.2

Filed
Herein

8-K

05/17/2018

10.1

8-K

04/30/2018

10.3

10-K

02/08/2018

24.1

X

X

X

X

X

X

X

X

X

X

*

**

Indicates a management contract or compensatory plan or arrangement.

Furnished herein.

128

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this 
report to be signed on its behalf by the undersigned thereunto duly authorized.

SIGNATURES

February 6, 2019

T-MOBILE US, INC.

/s/ John J. Legere
John J. Legere
Chief Executive Officer 

Each person whose signature appears below constitutes and appoints John J. Legere and J. Braxton Carter, and each or either of 
them, his or her true and lawful attorney-in-fact and agent, each acting alone, with full power of substitution and resubstitution, 
for him or her and in his or her name, place and stead, in any and all capacities, to sign any or all amendments or supplements 
(including post-effective amendments) to this Report, and to file the same, with all exhibits thereto, and all documents in 
connection therewith, with the Securities and Exchange Commission, granting unto said attorney-in-fact and agent, full power 
and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as 
fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorney-
in-fact and agent, or his or her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following 
persons on behalf of the registrant and in the capacities indicated as of February 6, 2019.

Signature

Title

/s/ John J. Legere

John J. Legere

/s/ G. Michael Sievert

G. Michael Sievert

/s/ J. Braxton Carter

J. Braxton Carter

/s/ Peter Osvaldik

Peter Osvaldik

/s/ Timotheus Höttges

Timotheus Höttges

/s/ Srikant Datar

Srikant Datar

Chief Executive Officer and

Director (Principal Executive Officer)

President and Chief Operating Officer

Director

Executive Vice President and Chief Financial Officer

(Principal Financial Officer)

Senior Vice President, Finance and Chief Accounting

Officer (Principal Accounting Officer)

Chairman of the Board

Director

129

 
/s/ Lawrence H. Guffey

Lawrence H. Guffey

/s/ Christian P. Illek

Christian P. Illek

/s/ Bruno Jacobfeuerborn

Bruno Jacobfeuerborn

/s/ Raphael Kübler
Raphael Kübler

/s/ Thorsten Langheim

Thorsten Langheim

/s/ Olaf Swantee

Olaf Swantee

/s/ Teresa A. Taylor

Teresa A. Taylor

/s/ Kelvin R. Westbrook

Kelvin R. Westbrook

Director

Director

Director

Director

Director

Director

Director

Director

130

SENIOR LEADERSHIP TEAM, 
DIRECTORS AND BOARD COMMITTEES                                      

Senior Leadership Team

Neville R. Ray* 

John J. Legere 

John J. Legere* 

Chief Executive Officer

Executive Vice President and 

Chief Executive Officer,  

Chief Technology Officer

T-Mobile US, Inc.

Cody Sanford 

G. Michael Sievert 

STOCKHOLDER 
INFORMATION

Corporate Headquarters 

12920 SE 38th St. 

Bellevue, WA 98006 

Phone: 1-800-318-9270

Jeffrey T. Binder 

Executive Vice President and 

President and Chief Operating 

Website 

Executive Vice President of 

Chief Information Officer

Officer, T-Mobile US, Inc.

www.T-Mobile.com

T-Mobile and President of Layer3

G. Michael Sievert* 

Olaf Swantee 

Annual Meeting 

David R. Carey* 

President and Chief Operating 

Chief Executive Officer, Sunrise 

Thursday, June 13, 2019 

Executive Vice President, 

Officer

Communications Group AG

8:00 a.m. Pacific Daylight Time 

Corporate Services

Four Seasons Hotel Seattle 

J. Braxton Carter* 

Executive Vice President and 

Chief Executive Officer, Blue 

Seattle, WA 98101

Executive Vice President and 

Chief Commercial Officer

Valley Advisors, LLC

Matthew A. Staneff 

Teresa A. Taylor 

99 Union St. 

Chief Financial Officer

Nicholas J.W. Drake 

Directors

Kelvin R. Westbrook 

American Stock Transfer and  

President and Chief Executive 

Trust Company, LLC 

Transfer Agent 

Executive Vice President, 

Timotheus Höttges, Chair 

Officer, KRW Advisors, LLC

6201 15th Ave. 

Marketing and Digital Experience

Chief Executive Officer, Deutsche 

Telekom AG

Board Committees

Peter A. Ewens* 

Executive Vice President, 

Srikant M. Datar 

Audit Committee 

Corporate Strategy

Arthur Lowes Dickinson 

Srikant M. Datar, Chair 

Callie Field 

Administration and Senior 

Kelvin R. Westbrook

Executive Vice President, 

Associate Dean for University 

Professor of Business 

Teresa A. Taylor 

Brooklyn, NY 11219 

Phone: 1-800-937-5449

Stock Exchange 

T-Mobile US, Inc. 

Common stock trades on the  

NASDAQ Global Select Market

Customer Care

Affairs, Harvard Business School

Compensation Committee  

T-Mobile US,  

Kelvin R. Westbrook, Chair 

Investor Relations 

Jon A. Freier 

Lawrence H. Guffey 

Lawrence H. Guffey 

Executive Vice President, 

Chief Executive Officer, 

T-Mobile Retail

LG Capital Investors LLC

Janice V. Kapner 

Christian P. Illek 

Christian P. Illek 

Raphael Kübler 

Olaf Swantee

1 Park Ave. 

14th Floor 

New York, NY 10016 

investor.relations@T-Mobile.com 

Executive Vice President, 

Chief Financial Officer, 

Nominating and Corporate 

Annual Report 

Communications and Community 

Deutsche Telekom AG

Governance Committee 

The 2018 Annual Report  

Engagement

Bruno Jacobfeuerborn 

Teresa A. Taylor, Chair 
Lawrence H. Guffey 

is available online  
at www.T-Mobile.com. 

Michael J. Katz 

Chief Executive Officer of DFMG 

Thorsten Langheim

Stockholders may receive copies 

Executive Vice President, 

Deutsche Funkturm GmbH 

without charge by contacting 

T-Mobile for Business

and Chief Executive Officer of 

Executive Committee 

Investor Relations.

Comfortcharge GmbH

Timotheus Höttges, Chair 

Thomas C. Keys* 

President, MetroPCS

Raphael Kübler 

Lawrence H. Guffey 

Christian P. Illek 

Senior Vice President of the 

Bruno Jacobfeuerborn 

Elizabeth A. McAuliffe* 

Corporate Operating Office, 

Raphael Kübler 

Executive Vice President,  

Deutsche Telekom AG

Thorsten Langheim 

Human Resources

David A. Miller* 

Thorsten Langheim 

Executive Vice President 

Executive Vice President, 

Group Corporate Development, 

General Counsel and Secretary

Deutsche Telekom AG

John J. Legere

Sunit Patel 

Executive Vice President, 

Merger and Integration Lead

*Executive Officer