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Short answer: no verified mass exodus is underway. T-Mobile continued adding postpaid accounts in the second quarter of 2026, but retention weakened: account churn rose, net additions slowed, and legacy-plan migrations triggered price complaints and billing errors. Leadership is treating the deterioration as a manageable transition while emphasizing higher-value accounts, revenue and profitability.
What the latest numbers actually show
“En masse” would mean a sustained, company-wide net loss of customers. T-Mobile’s reported results do not establish that. They do show a less comfortable trend: more postpaid accounts are leaving, and the company is adding accounts more slowly.
| Measure | Q2 or first half 2026 | Comparison |
|---|---|---|
| Postpaid account churn | 0.99% in Q2 | Up from 0.92% in Q2 2025 (7 basis points) |
| Postpaid account churn | 1.02% for the first six months | Up from 0.93% in the comparable 2025 period (9 basis points) |
| Postpaid net account additions | Positive | Down 41,000, or 13%, year over year |
| Six-month net account additions | Positive | Down 29,000, or 6%, year over year |
These are postpaid account measures, not a count of individual people. Account churn is a monthlyized rate for billing accounts; it is not the share of every T-Mobile customer who canceled during the quarter. Account churn also differs from phone churn. A family account, a broadband-only account and a single phone line can affect the statistics differently.
T-Mobile attributed weaker additions partly to higher deactivations, a larger account base, more industry switching, broadband-only accounts and the UScellular and Metronet transactions. Metronet created a 16,000-account base adjustment in the quarter; that accounting adjustment should not be treated as 16,000 ordinary defections. (Q2 filing summary)
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Why customers are angry
Legacy plans are being migrated
In 2026, T-Mobile began moving some customers off older plans. Reports describe increases of up to $6 per line per month for affected plans, with customers transferred to newer offers that may include more premium data, hotspot data or international benefits. The increase is not universal; it depends on the plan and account.
Free-line and billing errors damaged trust
Some customers temporarily lost free-line promotions during the migration. Others reported an unexpected hotspot-data add-on that could add up to $15 per month. T-Mobile said at least some removed free lines were the result of technical errors and would be restored, but reports indicate that correcting a line did not necessarily reverse every earlier price increase. Ars Technica’s account of the migration also describes complaints filed with the FCC and a reported class-action lawsuit. Those reports do not, by themselves, establish that every migration was unlawful.
The consumer dispute has three separate parts: whether a legacy plan can be retired under its terms, how much an affected bill may rise, and whether T-Mobile’s systems applied the change correctly. A customer can be unhappy with the first issue, suffer an error on the third, or face both.
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Why management still says the business is strong
T-Mobile’s earnings messaging highlights continued account growth, service-revenue growth, network quality, broadband and fiber expansion, and profitability. Chief executive Srini Gopalan and the company are increasingly stressing “high-value” accounts rather than raw account volume. The company’s newsroom and investor-relations materials present the quarter as financially strong.
That framing can be economically coherent. A carrier can lose lower-value accounts yet increase average revenue per account, service revenue and cash flow if the remaining base pays more or buys more services. A plan migration can therefore improve the company’s economics even while it worsens a customer’s bill.
Management has not claimed that churn is unchanged. Reporting on the premium-plan migration says T-Mobile expects a temporary increase as some legacy customers decide whether to accept the new offers. The company’s argument is that better account economics will outweigh that short-term pressure. (Reported management commentary)
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Did T-Mobile change the scoreboard?
Beginning in the first quarter of 2026, T-Mobile shifted away from emphasizing certain broader customer-performance measures and toward high-value accounts. It still reports account churn, but the change makes some comparisons with earlier periods and other carriers less direct. (Reported filing details)
Calling that “hiding losses” goes beyond the established evidence. The verified point is that the reporting emphasis changed. The business reasons are understandable: investors care about revenue, margins and cash generation, not only the number of accounts. The reputational risk is also real. If customers see prices rise while the company talks mainly about account quality, they may conclude that management is minimizing a deterioration they can feel.
Is the new strategy causing the problem?
The evidence supports an inference, not a proven internal motive. T-Mobile is moving from its earlier “Un-carrier” identity of disruptive customer-friendly changes toward higher average revenue, digital account management, broadband and profitability. Retiring legacy plans can monetize an existing base, but it also risks alienating long-tenured subscribers who were attracted by price guarantees and free-line deals.
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Switching costs may delay departures. Device financing, family-plan administration, promotional credits and a network that works well at home or work can keep an unhappy customer from leaving immediately. That helps explain how sentiment can worsen before the churn data shows a sharp decline.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What happens next
The key test is what churn does after the migration wave passes. If it settles, T-Mobile can plausibly describe the pressure as a transition cost. If churn keeps rising while net additions weaken, the temporary explanation will become harder to sustain. Q2 results also contain other influences—acquisitions, broadband-only accounts and broader industry switching—so no single quarter can prove that plan prices caused the entire increase.
Customers on social media and Reddit can reveal real failure modes, such as missing credits or confusing notices, but those posts are not a statistically representative sample of T-Mobile’s base. Conversely, strong revenue does not prove that affected customers are satisfied.
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What affected customers should do before switching
- Find the notice. Check email, text messages and the T-Mobile app for a formal plan-retirement or migration notice.
- Rebuild the bill. Compare the old and new plan line by line, including taxes, fees, premium-data thresholds, hotspot limits and international benefits.
- Audit promotions. Confirm that every free-line credit and other bill credit remains attached. Save screenshots of the old plan, promotional terms, notices and bills.
- Challenge unexplained charges. Ask T-Mobile to remove an unrequested hotspot add-on and ask whether a removed free line qualifies for restoration.
- Escalate in writing. Keep a case number, use T-Mobile’s executive customer-relations channel if ordinary support cannot resolve the issue, and consider an FCC complaint.
- Calculate the exit cost. Check remaining device installments, insurance, smartwatch lines, home internet and promotional credits. Leaving early can forfeit bill credits or leave a device balance.
- Test alternatives first. Compare coverage at home, work, school and regular travel locations. Review official options from Verizon, AT&T, UScellular, Mint Mobile, Visible and US Mobile, then verify current taxes, fees, device rules and promotions before enrolling.
Stay or leave: the decision turns on your total cost
| If your priority is… | Look at… |
|---|---|
| Lowest dependable bill | Total cost after taxes, fees, device payments and lost credits—not the advertised rate |
| Reliable coverage | Performance at your address and frequent destinations, including rural travel |
| Hotspot or premium data | Allowance, speed thresholds and any add-on charge |
| International use | Roaming countries, high-speed-data limits and calling terms |
| Family savings | Number of paid lines, free-line credits and multi-line discounts |
| Simple support | Retail access, phone support and how much account management happens in an app |
Business, government, military, first-responder, prepaid and MVNO accounts can have different migration rules. Home-internet and fiber customers should not assume that wireless-plan terms apply to them.
The bottom line
T-Mobile is not demonstrably losing customers “en masse.” It is still adding postpaid accounts, but churn is higher, growth is slower and legacy-plan migrations have created a serious trust problem. Leadership is emphasizing more valuable accounts and stronger financial output while acknowledging that some customers may leave during the transition. The immediate issue is therefore retention and credibility, not proven mass abandonment. For customers, the rational choice is to compare the complete post-migration bill, coverage and switching costs—not a viral headline or a single quarterly metric.
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