T-Mobile US Signals Strong Growth in Earnings Call

T Mobile US ((TMUS)) has held its Q4 earnings call. Read on for the main highlights of the call.

T-Mobile US delivered an upbeat earnings call that balanced strong execution with clear-eyed caution. Executives stressed industry-leading growth in service revenue and cash generation, underpinned by network leadership and accelerating digital adoption. At the same time, they flagged integration costs, higher interest assumptions and intense promotions, framing guidance as conservative with meaningful upside optionality.

Industry-Leading Growth in Revenue and EBITDA

T-Mobile reported Q4 service revenue up 10% year over year, or about 5% organically, alongside adjusted EBITDA growth of 7% (4% organic), cementing its position as the sector’s growth leader. Looking ahead, management targets roughly $77 billion of service revenue and $37–37.5 billion of adjusted EBITDA in 2026, and expects more than $10 billion of service revenue and over $7 billion of incremental core EBITDA growth between 2025 and 2027 at the high end.

Customer Acquisition and Account Momentum

The company’s customer engine remained powerful, with Q4 postpaid net account additions of 261,000, nearly 10 times the comparable figure cited for a key rival, and a base of more than 34 million total accounts. For 2026, T-Mobile is guiding to 900,000–1,000,000 postpaid net account additions, implying about 2.5 million postpaid phone net adds, while it continues to add roughly 1.2 million new prepaid relationships per year.

Pricing Power and Value Expansion

Management highlighted sustained success in monetization, as postpaid ARPA grew 2.7% in Q4, with organic ARPA closer to 3.6%, and postpaid ARPU is up about 13% since 2020. With over 60% of customers on premium plans and favorable economics between newer and legacy plans, the company expects postpaid ARPA to rise another 2.5–3% annually, underscoring confidence in durable pricing power without overreliance on headline hikes.

Network Leadership and Speed Advantage

T-Mobile leaned heavily on its network story, noting it deployed a standalone 5G core back in 2021, giving it a three to four year lead versus peers and roughly double the median download speeds of its nearest rivals. The company cited tests showing the latest iPhone running about 85% faster versus one top competitor and about 50% faster versus another, and pointed to J.D. Power recognition and a surge in switchers who now call T-Mobile the best network as tangible proof of its edge.

Broadband Surge in FWA and Fiber

Broadband is becoming a second growth engine, with fixed wireless access growing from zero to roughly 8 million customers in just three to four years, and usage per customer, speeds and total connections all rising sharply. Management has raised its FWA target to 15 million customers by 2030 and, together with an expected 3–4 million fiber subscribers, now envisions 18–19 million total broadband customers by decade’s end, signaling a meaningful challenge to traditional cable and telco incumbents.

Digital and AI Drive Cost Efficiency

The company’s TLife app has been downloaded more than 100 million times and now counts about 24 million monthly active users, driving a rapid shift to digital self-service as nearly three quarters of upgrades run through TLife and almost 40% are fully unassisted. This digital and AI push has already cut call volumes by about half, with management targeting a 75% reduction over time and projecting roughly $3 billion in run-rate savings by 2027, including about $1.3 billion in 2026 and $2.7 billion in 2027.

Free Cash Flow and Capital Returns

Strong cash generation remains a central pillar of the story, with Q4 free cash flow conversion at 22% and 2025 expected near 25%, supporting adjusted free cash flow of $18–18.7 billion in 2026 and $19.5–20.5 billion in 2027. Since 2022 T-Mobile has returned more than $45 billion to shareholders, plans up to $30 billion of additional returns across 2026–2027 including up to roughly $10 billion of annual buybacks, and has already accelerated Q1 repurchases to as much as $5 billion.

Strategic Partnerships and Innovation Pipeline

Beyond the core wireless business, management spotlighted an innovation roadmap that includes an AI RAN Innovation Center with key network vendors and a major chip partner, where field trials are expected in 2026, as well as the launch of a network-embedded Live Translate service as its first scaled AI feature in the core. Partnerships and joint ventures across fiber build-outs and satellite connectivity are designed to extend T-Mobile’s reach and position it for new product and revenue opportunities as technologies like 6G and edge AI mature.

Customer Experience and NPS Tailwinds

The company reported a sharp improvement in Net Promoter Scores since 2023 and tied that momentum directly to its outperformance in customer growth and retention, with T-Mobile-branded stores notably outperforming authorized retailers on customer satisfaction. Frontline tools, cultural initiatives and digital services have simultaneously lifted customer experience while cutting support calls about 50%, reinforcing a virtuous cycle where happier customers are also cheaper to serve.

Disciplined Balance Sheet and CapEx

Management emphasized a conservative financial stance, with 2026 CapEx expected around $9–10 billion, focused tightly on customer-driven network expansion rather than speculative builds, and leverage assumptions set around 2.5 times net debt. Cash interest is guided to approximately $4.3 billion in 2026 and $5.0 billion in 2027, levels management acknowledged are higher than many analyst models but consistent with a disciplined capital allocation framework that still leaves a flexible capital envelope.

Churn Normalization Amid Promotions

While the overall industry has seen churn creep back toward pre-pandemic norms, T-Mobile’s full-year churn increase was limited to about seven basis points and remained the lowest among the three major carriers, though Q4 did show an uptick. Management linked this pressure to elevated promotional activity across the sector and suggested that while the company will compete, it is wary of promotional spirals that destroy long-term value and will focus on sustainable economics.

Integration and Restructuring Weigh on Near-Term Cash

The company acknowledged that integration and restructuring will be a drag on 2026 free cash flow, with about $1.2 billion of merger-related costs and roughly $1.3 billion of associated cash outlays tied largely to the U.S. Cellular integration. Additional near-term items include approximately $450 million in network optimization spending, mostly in the first half, and about $150 million in workforce restructuring charges, which together create a temporary but manageable headwind.

Promotional Intensity and Device Subsidy Risks

Executives flagged that Q4 was marked by aggressive industry promotions, including widespread free-phone offers that weigh on profitability and risk training customers to expect subsidies. T-Mobile signaled it will push back against tactics that undermine “win–win” economics even if that means short-term margin pressure in some quarters, arguing that its network and experience advantages should allow it to compete without chasing every deal.

Guidance Conservatism and M&A Contribution

T-Mobile’s multi-year outlook bakes in sizable contributions from completed acquisitions, including about $3.6 billion of service revenue and $1.3 billion of EBITDA from M&A in 2026 and roughly $4 billion of revenue and $1.7 billion of EBITDA in 2027, while also using higher cash interest assumptions than many on the sell side. At the same time, management stressed that most potential upside from emerging businesses such as advanced AI RAN, advertising and financial services is not factored into 2026–2027 guidance, reflecting both execution risk and deliberate conservatism.

Uncertain Monetization of New Growth Avenues

The company sees significant strategic promise in initiatives like 6G and physical AI, edge computing, an expanding advertising platform and a branded payment card, but made clear that these are still in building mode rather than major profit drivers. As a result, while investors may view them as long-term call options on the T-Mobile equity story, the timing and scale of their revenue and EBITDA contributions remain uncertain and are largely absent from the formal outlook.

Shift to Account-Level Reporting and Investor Visibility

In a notable disclosure change, T-Mobile will stop reporting postpaid phone subscriber metrics and move to account-level reporting centered on net accounts and ARPA, arguing that accounts better capture the economics of a household relationship. Some investors may see this as a reduction in transparency, as phone-level trends have traditionally underpinned many industry models, but management contends the new metric more accurately reflects how value is created and managed internally.

Outlook and Forward Guidance

Management’s guidance points to continued outperformance, with service revenue expected to reach about $77 billion in 2026 and up to $81.5 billion in 2027, alongside core adjusted EBITDA growing toward $40–41 billion, supported by about $10 billion of annual CapEx and steadily rising free cash flow. With conversion of service revenue to free cash flow running in the low-to-mid 20% range, leverage kept near 2.5 times, $1.3–2.7 billion of annual efficiency gains from digital initiatives and a more than $52 billion capital allocation envelope through 2027, T-Mobile is signaling room for both robust investment and substantial shareholder returns.

T-Mobile’s earnings call painted the picture of a carrier that has leveraged its network and digital head start into superior growth, profitability and cash returns, even as it confronts a more promotional, capital-intensive industry backdrop. With conservative assumptions, clear near-term cost headwinds and some long-term optionality not yet in the numbers, the company is effectively telling investors that solid execution is already built into guidance while genuine upside remains if its innovation bets and broadband ambitions pay off.