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NASDAQ: TMUS T-Mobile US, Inc. 8-K

T-Mobile reports 11% service revenue growth, raises 2026 guidance, boosts buyback by up to $3.6B

Filed April 28, 2026 · Period ending April 28, 2026 · ~1 min read

5 key changes 3 high relevance 3 sections

Key Changes

  • high

    Service revenues grew 11% year-over-year to $18.8B in Q1 2026, with postpaid service revenues up 15% to $15.6B, demonstrating industry-leading growth despite integration costs.

    Exhibit 99.1 view on EDGAR →
  • high

    Board increased 2026 stockholder return authorization by up to $3.6B to $18.2B total; company returned $6.0B in Q1 through $4.9B in buybacks and $1.1B in dividends.

    Exhibit 99.1 view on EDGAR →
  • high

    Raised full-year 2026 guidance: postpaid net account additions to 950K-1.05M (up 50K at midpoint), Core Adjusted EBITDA to $37.1B-$37.5B, and Adjusted Free Cash Flow to $18.1B-$18.7B (each up $50M at midpoint).

    Exhibit 99.2 view on EDGAR →
  • medium

    Net income declined 15% to $2.5B ($2.27 per share) due to $476M in after-tax UScellular merger costs including accelerated depreciation, plus $105M in workforce transformation severance and $103M in network restructuring costs.

    Exhibit 99.2 view on EDGAR →
  • medium

    Postpaid net account additions of 217K grew 6% year-over-year, while postpaid ARPA reached $151.93, up 3.9%, reflecting customer acquisition and deepening engagement.

    Exhibit 99.1 view on EDGAR →

Summary

T-Mobile delivered strong Q1 2026 operational results with service revenues growing 11% to $18.8 billion and Core Adjusted EBITDA up 12% to $9.2 billion, demonstrating the company's ability to drive industry-leading growth while integrating the UScellular acquisition.

The company raised full-year 2026 guidance across key metrics, increasing postpaid account addition targets by 50,000 at the midpoint and lifting cash flow and EBITDA guidance by $50 million each, signaling confidence in sustained momentum.

Reported net income of $2.5 billion declined 15% year-over-year, but this was entirely attributable to one-time integration and restructuring costs totaling $684 million after-tax: $476 million in UScellular merger-related expenses including accelerated depreciation, $105 million in workforce transformation severance, and $103 million in network restructuring. Excluding these items, underlying profitability remained robust, supported by 15% postpaid service revenue growth and expanding ARPA. The Board's decision to increase the 2026 stockholder return authorization by up to $3.6 billion to $18.2 billion total reflects strong cash generation and balance sheet confidence. With $6.0 billion returned to shareholders in Q1 alone and cumulative returns reaching $51.4 billion since program inception, T-Mobile is demonstrating disciplined capital allocation alongside operational execution. The raised guidance and accelerated capital returns position the company favorably as UScellular integration progresses and one-time costs subside.

Section-by-Section Diff

Event · Exhibit 99.2

T-Mobile reported Q1 2026 earnings with $2.5B net income, raised 2026 guidance, and increased stockholder return authorization to $18.2B.

4 Added
Added Q1 2026 earnings results high

Added in current filing · view on EDGAR →

Net income was $2.5 billion and Diluted earnings per share was $2.27 in Q1 2026, compared to $3.0 billion and $2.58 in Q1 2025, primarily due to the factors described above and included the following: ■UScellular merger-related costs, including accelerated depreciation, net of tax, of $476 million, or $0.43 per share, in Q1 2026 and $10 million, or $0.01 per share, in Q1 2025 ■Severance and related costs associated with the 2025-2026 workforce transformation and reinvestment initiative, net of tax, of $105 million, or $0.10 per share, in Q1 2026 ■Costs associated with the network restructuring initiative, including accelerated depreciation, net of tax, of $103 million, or $0.09 per share, in Q1 2026

T-Mobile reported Q1 2026 net income of $2.5 billion ($2.27 per diluted share), down from $3.0 billion ($2.58 per share) in Q1 2025. The year-over-year decline was driven by $476 million in UScellular merger-related costs, $105 million in workforce transformation severance, and $103 million in network restructuring costs. Service revenues grew 11% year-over-year to $18.8 billion, driven by postpaid account growth and higher ARPA.

Added Increased stockholder return authorization high

Added in current filing · view on EDGAR →

On April 23, 2026, the company announced that its Board of Directors has increased the company’s 2026 stockholder return authorization to up to $18.2 billion, representing an increase of up to $3.6 billion from its prior 2026 authorization.

The Board of Directors increased the 2026 stockholder return authorization by $3.6 billion to a total of $18.2 billion, up from the prior $14.6 billion authorization announced in December 2025. During Q1 2026, the company repurchased 23.3 million shares for $4.9 billion and paid $1.1 billion in dividends ($1.02 per share). Cumulatively since Q3 2022, T-Mobile has returned $51.4 billion to stockholders.

Added UScellular acquisition integration medium

Added in current filing · view on EDGAR →

During Q3 2025, we acquired 1,448,000 postpaid accounts, net of certain base adjustments, through the UScellular acquisition.

T-Mobile acquired 1,448,000 postpaid accounts through the UScellular acquisition in Q3 2025. Q1 2026 results included $476 million in UScellular merger-related costs (net of tax), including accelerated depreciation, integration costs, restructuring, and transaction expenses. The company is executing network, retail, IT, and back-office integration to achieve efficiencies and migrate customers to T-Mobile systems.

Added Workforce transformation initiative medium

Added in current filing · view on EDGAR →

$132 million of severance and related costs associated with the 2025-2026 workforce transformation and reinvestment initiative

T-Mobile incurred $132 million in severance and related costs during Q1 2026 as part of its 2025-2026 workforce transformation and reinvestment initiative. After-tax impact was $105 million, or $0.10 per share. This follows $390 million in similar costs in Q4 2025. The initiative appears focused on restructuring operations and reallocating resources.

Event · Item 2.02 — Results of Operations and Financial Condition

~100 words

T-Mobile announced Q1 2026 financial and operating results via press release and investor factbook.

1 Added
Added Q1 2026 earnings announcement high

Added in current filing · verify on EDGAR →

On April 28, 2026, T-Mobile US, Inc. (the “Company”) issued a press release announcing the financial and operating results of the Company for the quarter ended March 31, 2026.

T-Mobile disclosed its first quarter 2026 financial and operating results through a press release and accompanying investor factbook. The 8-K itself does not contain the actual results — those are in the attached exhibits. This is a standard earnings announcement filing where the company furnishes results to investors.

Event · Exhibit 99.1

T-Mobile reported Q1 2026 earnings with 11% service revenue growth, raised full-year guidance, and increased share buyback authorization by up to $3.6B.

4 Added
Added Q1 2026 earnings results high

Added in current filing · view on EDGAR →

Service revenues of $18.8 billion grew 11% year-over-year, industry-leading growth •Postpaid service revenues of $15.6 billion grew 15% year-over-year, industry-leading growth •Net income of $2.5 billion decreased 15% year-over-year and included the impact of UScellular merger-related costs, including accelerated depreciation, net of tax, of $476 million •Diluted earnings per share (“EPS”) of $2.27 decreased 12% year-over-year and included the impact of UScellular merger-related costs, including accelerated depreciation, net of tax, of $0.43 •Core Adjusted EBITDA(2) of $9.2 billion grew 12% year-over-year, industry-leading growth

T-Mobile reported strong Q1 2026 results with service revenues growing 11% to $18.8 billion and postpaid service revenues up 15% to $15.6 billion. Net income declined 15% to $2.5 billion due to $476 million in after-tax UScellular merger-related costs including accelerated depreciation, which reduced diluted EPS by $0.43 to $2.27. Core Adjusted EBITDA grew 12% to $9.2 billion, demonstrating strong operational performance despite merger integration expenses.

Added Raised 2026 guidance high

Added in current filing · view on EDGAR →

•Postpaid net account additions ... are expected to be between 950 thousand and 1.05 million, an increase from prior guidance of 900 thousand to 1.0 million. •Core Adjusted EBITDA, which is Adjusted EBITDA less lease revenues, is expected to be between $37.1 billion and $37.5 billion, an increase at the midpoint from prior guidance of $37.0 billion to $37.5 billion. •Net cash provided by operating activities, including net payments for UScellular merger-related costs, is expected to be between $28.1 billion and $28.7 billion, an increase at the midpoint from prior guidance of $28.0 billion to $28.7 billion. • ... Adjusted Free Cash Flow, including net payments for UScellular merger-related costs, is expected to be between $18.1 billion and $18.7 billion, an increase at the midpoint from prior guidance of $18.0 billion to $18.7 billion.

T-Mobile raised its full-year 2026 guidance across multiple metrics. Postpaid net account additions guidance increased to 950,000-1.05 million from 900,000-1.0 million. Core Adjusted EBITDA midpoint increased by $50 million to $37.3 billion. Operating cash flow and Adjusted Free Cash Flow midpoints each increased by $50 million to $28.4 billion and $18.4 billion respectively, all including UScellular merger-related costs.

Added Postpaid account growth and ARPA medium

Added in current filing · view on EDGAR →

•Postpaid net account additions of 217 thousand, grew 6% year-over-year •Postpaid Average Revenue Per Account (“ARPA”) of $151.93 grew 3.9% year-over-year

T-Mobile added 217,000 postpaid net accounts in Q1 2026, up 6% year-over-year from 205,000 in Q1 2025. Postpaid ARPA reached $151.93, growing 3.9% year-over-year from $146.22, reflecting both new customer acquisition and deepening engagement with existing customers through additional services.

Added Cash flow and capital allocation high

Added in current filing · view on EDGAR →

•Net cash provided by operating activities of $7.2 billion grew 5% year-over-year, industry-leading growth •Adjusted Free Cash Flow(2) of $4.6 billion grew 5% year-over-year, industry-leading growth ... •Stockholder Returns of $6.0 billion in Q1 2026, including common stock repurchases of $4.9 billion and cash dividends of $1.1 billion

T-Mobile generated $7.2 billion in operating cash flow in Q1 2026, up 5% year-over-year. Adjusted Free Cash Flow grew 5% to $4.6 billion after $2.6 billion in capital expenditures. The company returned $6.0 billion to stockholders in the quarter through $4.9 billion in buybacks and $1.1 billion in dividends, demonstrating strong cash generation and disciplined capital allocation.

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