Note 1 – Basis of Presentation

The unaudited condensed consolidated financial statements of T-Mobile US, Inc. (“T-Mobile,” “we,” “our” or the “Company”) include all adjustments of a normal recurring nature necessary for the fair presentation of the results for the interim periods presented. The results for the interim periods are not necessarily indicative of those for the full year. The condensed consolidated financial statements should be read in conjunction with our consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2015.

The condensed consolidated financial statements include the balances and results of operations of T-Mobile and our consolidated subsidiaries. We consolidate majority-owned subsidiaries over which we exercise control, as well as variable interest entities (“VIE”) where we are deemed to be the primary beneficiary and VIEs, which cannot be deconsolidated, such as those related to Tower obligations. Intercompany transactions and balances have been eliminated in consolidation.

Certain prior period amounts relating to the adoption of Accounting Standards Update (“ASU”) 2015-03 have been reclassified to conform to the current presentation.

The preparation of financial statements in conformity with United States (“U.S.”) generally accepted accounting principles (“GAAP”) requires our management to make estimates and assumptions which affect the financial statements and accompanying notes. 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 those estimates.

Revenue Recognition

We offer products and services to customers through bundled arrangements, which may be comprised of multiple contracts entered into with a customer at or near the same time. We assess such agreements as a single bundled arrangement that may involve multiple deliverables, which include wireless devices, wireless services or a combination thereof. For multiple deliverable arrangements revenue is allocated between the separate units of accounting based on such components’ relative selling prices on a standalone basis.

In June 2016, we introduced #GetThanked, the latest of our Un-Carrier initiatives, which offers eligible customers the following free promotional items:

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T-Mobile stock - A share of T-Mobile stock to eligible new (through December 31, 2016) or existing (as of June 6, 2016) customers. Shares issued to customers under this promotion are purchased by an independent third-party broker in the open market on behalf of eligible customers. The associated cost, which is paid by T-Mobile, is recorded as a reduction of service revenue for existing customers and as a reduction of equipment revenue for new customers in our Condensed Consolidated Statements of Comprehensive Income. Through December 31, 2016, existing eligible customers can also receive a share of T-Mobile stock (subject to a maximum of 100 shares in a calendar year) for every new active account they refer, purchased by the third-party broker and paid for by T-Mobile. The cost of shares issued under this refer-a-friend program are included in Selling, general and administrative expense in our Condensed Consolidated Statements of Comprehensive Income;


•	Weekly surprise items - Each Tuesday, eligible customers, who download the T-Mobile Tuesday app, can redeem products and services offered by participating business partners. The associated cost is included in Selling, general and administrative expense in our Condensed Consolidated Statements of Comprehensive Income; and


•	In-flight Wi-Fi - A full hour of in-flight Wi-Fi free to eligible customers on their smartphone on all Gogo-equipped domestic flights. The associated cost, which is paid by T-Mobile, is included in Cost of services in our Condensed Consolidated Statements of Comprehensive Income.

Accounting Pronouncements Adopted During the Current Year

In April 2015, the Financial Accounting Standards Board (the “FASB”) issued ASU 2015-03, “Simplifying the Presentation of Debt Issuance Costs.” The standard requires debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The recognition and measurement guidance for debt issuance costs are not affected. We adopted this new guidance in the first quarter of 2016 and applied the changes retrospectively. The implementation of this standard did not have a significant impact on our condensed consolidated financial statements.

In March 2016, the FASB issued ASU 2016-09, “Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting,” which simplifies several aspects of the accounting for shared-based payment transactions, including income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. We elected to adopt this standard as of January 1, 2016, as permitted. The impacts on our condensed consolidated financial statements from the adoption of this standard are as follows:


•	Condensed Consolidated Balance Sheets - A $38 million decrease to the January 1, 2016 Accumulated deficit balance from the recognition, on a modified retrospective basis, of all previously unrecognized income tax attributes related to share-based payments;


•	Condensed Consolidated Statements of Comprehensive Income - On a prospective basis, all excess tax benefits and deficiencies related to share-based payments will be recognized through Income tax (expense) benefit; and


•	Condensed Consolidated Statements of Cash Flows - On a prospective basis, as permitted, excess tax benefits related to share-based payments will be presented as operating activities. Prior period amounts were not adjusted.

Accounting Pronouncements Not Yet Adopted

In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers” (“ASU 2014-09”), and has since modified the standard with ASU 2015-14, “Revenue From Contracts With Customers (Topic 606): Deferral of the Effective Date,” ASU 2016-08, “Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net),” ASU 2016-10, “Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing” and ASU 2016-12, “Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients.” The 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. The standard will become effective for us beginning January 1, 2018; however, early adoption with the original effective date for periods beginning January 1, 2017 is permitted. Under ASU 2014-09, two adoption methods are allowed. Under one method, a company may apply the rules to contracts in all reporting periods presented, subject to certain allowable exceptions. Under the other method, a company may apply the rules to all contracts existing as of January 1, 2018 (provided early adoption is not elected), recognizing an adjustment to retained earnings for the cumulative effect of the change and providing additional disclosures comparing results to previous rules. We continue to evaluate the impact of the new standard and available adoption methods on our consolidated financial statements and believe the standard will require the implementation of new revenue accounting systems, processes and internal controls over revenue recognition.

In February 2016, the FASB issued ASU 2016-02, “Leases.” The standard requires all lessees to report a right-of-use asset and a lease liability for most leases. The income statement recognition is similar to existing lease accounting and is based on lease classification. The standard requires lessees and lessors to classify most leases using principles similar to existing lease accounting, but eliminates the “bright line” classification tests. For lessors, the standard modifies the classification criteria and the accounting for sales-type and direct financing leases. The standard will become effective for us beginning January 1, 2019 and will require recognizing and measuring leases at the beginning of the earliest period presented using a modified retrospective approach. Early adoption is permitted. We are currently evaluating the standard but expect that it will have a material impact on our condensed consolidated financial statements.

In June 2016, the FASB issued ASU 2016-13, “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.” 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 standard to determine the potential impact on our condensed consolidated financial statements.