Steps
- 1
Call customer service — there's no online self-cancel button for postpaid lines
- 2
Ask directly for the line(s) to be cancelled; expect a retention offer before they process it
Heads up — Any device installment balance becomes due immediately when you cancel. On prepaid instead? Just stop AutoPay and let the line lapse — it cancels itself after about 120 days unused.
If T-Mobile charges you again after you've cancelled, dispute it with your card issuer — you now have this guide as your proof of the cancellation steps. Skycopia's Protection feature also watches every cancelled subscription and flags a zombie rebill automatically.
Set up Protection free→FAQ
How do I cancel T-Mobile?
Cancel T-Mobile online at https://www.t-mobile.com/support/account/cancel-service or by phone at 1-800-937-8997.
How hard is it to cancel T-Mobile?
Skycopia rates cancelling T-Mobile as hard — it takes 2 steps.
What should I watch out for when cancelling T-Mobile?
Any device installment balance becomes due immediately when you cancel. On prepaid instead? Just stop AutoPay and let the line lapse — it cancels itself after about 120 days unused.
More cancellation guides
See all cancellation guides →Skip the manual work next time.
Skycopia finds every recurring charge in your bank history — including the ones you forgot about — and hands you a playbook like this one for each. Free audit, no credit card.
The founder's own audit flagged $19,207/yr — real numbers, July 2026. Yours will vary; that's the point.
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