How to Cancel T-Mobile in 2026

T-Mobile does not let you cancel online. You cancel by calling 1-800-937-8997 (or 611 from your T-Mobile phone) or by visiting a store, and only the Billing Responsible Party can do it. The catch that bites: your service runs to the end of your current billing cycle and that last month is not prorated, so timing your call barely moves the final bill.

Short answer: Call 1-800-937-8997, have your account PIN ready, and ask for a cancellation confirmation number. If you want to keep your number, do not cancel first. Port it out through your new carrier instead.

Last updated: June 2026.

Deadline that bites: T-Mobile cancellations are future-dated to the end of your current billing cycle, and core service charges are not prorated. Cancelling on day 2 or day 28 of the cycle costs you the same full month. If your whole account closes, any remaining device installment balance becomes due on the final bill. And if you are on AutoPay, your final bill can still be charged to your saved card unless you remove AutoPay first.

Can you cancel T-Mobile online?

No. There is no cancel button in the T-Mobile app or on t-mobile.com. T-Mobile routes account closures through a live person, either by phone or in a store. Here is the exact path.

1. Find your account PIN or passcode first. This is the 6 to 15 digit code you set at activation. T-Mobile asks for it to verify you on every call and store visit.
2. Confirm you are the Billing Responsible Party (the person who signed up). Authorized users can view the account but cannot close a line or the whole account.
3. Call 1-800-937-8997, or dial 611 from your T-Mobile phone. For business accounts, call 1-866-335-1467. Prefer in person? Bring a government photo ID to a T-Mobile store, though staff often connect you to a phone specialist to finish the closure.
4. Say plainly: "I want to cancel my service and close the account." Expect a retention pitch (a discount, a plan downgrade, a credit). You can decline it. Repeat the request until they process it.
5. Ask when the cancellation takes effect. It is future-dated to the end of your billing cycle, so note that date.
6. Get a cancellation confirmation number or email before you hang up. Screenshot it. That paper trail is your proof if a charge shows up later.
7. Remove AutoPay and any saved payment method after your final bill is settled, so nothing bills you by surprise.

How do you cancel T-Mobile but keep your phone number?

Do not cancel first. If you cancel the line, the number is released and you can lose it. To keep it, port it out through your new carrier.

1. Keep your T-Mobile line active. Sign up with the new carrier and tell them you are bringing your number.
2. Generate a Transfer PIN in the T-Mobile app or site: Profile, then Line Settings, then Request a transfer PIN. Only the Primary Account Holder can create it, and it is valid for about 7 days.
3. Give the new carrier your T-Mobile account number and that Transfer PIN. They run the port through the automated system. A wireless port usually completes in 10 minutes to 3 hours.
4. Once your number is live on the new carrier, the T-Mobile line closes automatically as part of the port. You do not place a separate cancel call.

Bundled or business account? If T-Mobile service is tied to a home internet plan, a third-party reseller, or an employer account, the cancel path and final-bill rules can differ. Confirm who actually bills you before you call.

T-Mobile cancellation methods compared

What is the T-Mobile cancellation deadline and final bill?

There is no monthly notice deadline, but there is a money trap: T-Mobile does not prorate your final month. Whenever you cancel in the cycle, you owe the full monthly service charge through the end of that cycle. If the whole account closes, any leftover device installment balance is added to the final bill. If you are owed a credit balance back, T-Mobile typically holds it at least 30 days after cancellation (to let final charges settle) and then mails a check, which can take a further week or more.

So the smart move is to cancel or port near the end of a billing cycle, not the start, so you use the full month you are paying for anyway.

Illustrative example. Results vary and are not guaranteed.

What if T-Mobile won't let you cancel or keeps charging you?

If a charge lands after your confirmed cancellation date, that is a separate fight, and you have leverage.

1. Pull up your cancellation confirmation number and the effective date you noted.
2. Call back and ask for a billing correction in writing. Reference the confirmation number.
3. Still charged? Dispute the charge with your bank or card issuer. Most give you a 60-day window from the statement date. Here is how to dispute a credit card charge and the paper trail to bring.
4. File a complaint with the FCC and your state attorney general if T-Mobile keeps billing after cancellation.

Not sure whether to ask T-Mobile again or go straight to your bank? Read chargeback vs refund to pick the faster route, and what to do when a company won't refund you.

How do you get money back from T-Mobile?

If you were overcharged or billed after cancelling, that is a refund fight, not a cancel one. Start at the Karen refunds hub for the exact script, and see what to do when a company won't refund you if they say no.

Frequently asked questions

Can I cancel T-Mobile online?

No. T-Mobile has no online or in-app cancel button. You cancel by calling 1-800-937-8997 (or 611 from a T-Mobile phone) or by visiting a store. Only the Billing Responsible Party can close the account.

Does T-Mobile prorate your final bill?

No. Core service charges are not prorated. You owe the full month through the end of your current billing cycle no matter what day you cancel. Cancel near the end of the cycle to use what you paid for.

What happens to my device payments if I cancel T-Mobile?

If you close the entire account, any remaining device installment balance becomes due on your final bill. If you keep other lines active, the device payment on a cancelled line generally keeps billing monthly.

How do I cancel T-Mobile but keep my phone number?

Do not cancel first. Keep the line active, request a Transfer PIN in the app under Profile then Line Settings, and give your new carrier your account number and that PIN. The line closes automatically once the number ports.

Will T-Mobile still charge my card after I cancel?

Yes, it can. If you are on AutoPay, your final bill may still be charged to your saved payment method. Remove AutoPay only after the final bill is settled, and keep your cancellation confirmation number.

Last updated: June 2026. Verify current terms on T-Mobile's site, terms change. Karen is not affiliated with T-Mobile. Karen is a self-help tool, not a law firm, and does not guarantee any outcome.

Other things Karen fights

• Trimming subscriptions too? Cancel Netflix or cancel Spotify.
• Start here: the Karen cancel hub, the refunds hub, and the disputes hub.