T-Mobile Posts $2.27 EPS as Service Revenue Jumps 11% to $18.8B in Q1

T-Mobile US (NASDAQ: TMUS) delivered first-quarter 2026 diluted earnings per share of $2.27, down 12% from $2.58 a year ago, as the wireless carrier absorbed $0.43 per share in costs related to its pending UScellular merger while posting industry-leading revenue growth across key metrics.

Key Numbers

The Un-carrier's service revenues jumped 11% year-over-year to $18.8 billion in Q1 2026, driven by a 15% surge in postpaid service revenues to $15.6 billion — growth rates the company claims lead the industry. Total revenues reached $23.1 billion, up 10.6% from the prior year's $20.9 billion.

Net income fell 15% to $2.5 billion from $2.95 billion in Q1 2025, primarily due to $476 million in after-tax UScellular merger-related costs, including accelerated depreciation. Without these one-time charges, adjusted earnings would have been approximately $2.70 per share, representing modest growth year-over-year.

Core Adjusted EBITDA, a key profitability metric watched by investors, grew 12% to $9.2 billion, while adjusted free cash flow increased 5% to $4.6 billion. The company generated $7.2 billion in operating cash flow, up 5% year-over-year.

On the customer front, T-Mobile added 217,000 postpaid net account additions in the quarter, accelerating 6% from 205,000 additions a year ago. Postpaid Average Revenue Per Account (ARPA) climbed 3.9% to $151.93, demonstrating the company's ability to extract more value from its customer base. Account churn remained controlled at 1.04%, though up from 0.94% in the prior year.

What Management Said

CEO Srini Gopalan struck an optimistic tone, calling Q1 "yet another proof point of our winning formula and unique differentiation." He emphasized the company's dual success in attracting new customers while deepening engagement with existing ones.

"We reported accelerating postpaid net account growth and strong postpaid ARPA growth, reflecting this team's differentiated ability to not only attract new customer relationships but also deepen the engagement with our existing base," Gopalan stated. "This drove the outsized results you see, including industry-leading financial growth."

The CEO expressed increased confidence in T-Mobile's strategy, noting the company is executing against "ambitious 2026 and 2027 targets" with what he called "the industry's best growth portfolio in core wireless, broadband, and smart adjacencies."

Management highlighted network quality as a key driver, noting that a record share of recent switchers chose T-Mobile primarily for its network — evidence that improving network perception is successfully attracting "network seekers" to the Un-carrier. The company also touted its position as the fastest provider in Fixed Wireless Home Internet, with median download speeds over 50% faster than the nearest competitor.

Following the strong quarter, T-Mobile raised its full-year 2026 guidance across multiple metrics. The company now expects postpaid net account additions between 950,000 and 1.05 million, up from prior guidance of 900,000 to 1.0 million. Core Adjusted EBITDA guidance increased to $37.1-$37.5 billion from $37.0-$37.5 billion, while adjusted free cash flow guidance rose to $18.1-$18.7 billion from $18.0-$18.7 billion.

What to Watch

Several key factors merit attention as T-Mobile progresses through 2026. The UScellular merger integration remains a significant wildcard, with the company already absorbing substantial one-time costs that masked underlying operational strength in Q1. Investors should monitor how efficiently T-Mobile executes this integration and whether synergies materialize as expected.

The 3.9% ARPA growth demonstrates pricing power in a competitive market, but sustaining this momentum will be crucial as the company pursues its elevated guidance targets. The slight uptick in churn from 0.94% to 1.04% year-over-year warrants monitoring, though it remains at industry-competitive levels.

T-Mobile's aggressive stockholder return program continues, with $6.0 billion returned in Q1 alone through $4.9 billion in share buybacks and $1.1 billion in dividends. The board's April decision to increase the 2026 return authorization to $18.2 billion signals confidence in cash generation capacity.

The company's push into adjacent markets, including Fixed Wireless Home Internet and emerging AI applications (notably a partnership with Figure AI for humanoid robots connecting to T-Mobile's 5G network), represents both opportunity and execution risk. Success in these areas could provide additional growth vectors beyond traditional wireless services.

With capital expenditures expected to remain flat at approximately $10 billion for the full year despite network expansion and UScellular integration, T-Mobile appears confident in its ability to drive efficiency while maintaining network leadership — a balance that will be critical to achieving its raised 2026 targets.

*StockCliff Research*