T-Mobile cancellation works differently depending on whether you're on a contract, a prepaid plan, or a postpaid month-to-month account

The fastest way to cancel T-Mobile is to call 611 from your T-Mobile phone or 1-844-839-4534 from any phone. A representative can process your cancellation immediately and answer questions about early termination fees, final bills, or device payments you still owe. If you're on a contract plan, you may face an early termination fee — typically $200 to $350 per line, though T-Mobile has reduced this for some customers. Prepaid and month-to-month postpaid plans usually have no cancellation fees.

You can also cancel in person at any T-Mobile store, though calling is faster if you know you want to leave. Online cancellation through your T-Mobile account is not available — the company requires a phone call or in-person visit to prevent accidental cancellations.

Key Takeaways

  • Call 611 from your T-Mobile phone or 1-844-839-4534 to cancel; a representative will process it immediately and tell you what you owe.
  • Contract plans may include an early termination fee of $200 to $350 per line, but prepaid and month-to-month plans typically do not.
  • Your final bill will include charges through your cancellation date plus any remaining device payment balances.
  • Return any T-Mobile equipment like SIM cards or modems within 30 days to avoid additional charges.
  • Port your phone number to another carrier before canceling if you want to keep it; T-Mobile cannot transfer numbers after the account closes.

Understanding what you'll owe when you cancel

When you cancel, T-Mobile will charge you for service through the date you cancel plus any outstanding device payments. If you financed a phone through T-Mobile's Equipment Installment Plan, you must pay the remaining balance in full when you close your account — you cannot continue payments with another carrier. Check your bill or call 611 to find out exactly what device balance remains.

Early termination fees apply only to postpaid contract plans, not prepaid or month-to-month postpaid accounts. If you're unsure which plan you have, the representative on the phone can tell you immediately. Some customers with older contracts may have lower fees or no fees at all, depending on when they signed up.

Porting your phone number to a new carrier

If you want to keep your phone number when you switch carriers, you must port it before or during the cancellation call. Tell the T-Mobile representative you want to port your number, and they will provide you with a PIN and account number — you'll need these to give to your new carrier. Your new carrier will initiate the port, and T-Mobile will transfer the number within one to three business days.

Do not cancel your T-Mobile account before the port is complete. If you close the account first, T-Mobile can still port the number, but the process becomes more complicated and takes longer. Once the port is finished and your number is active with the new carrier, your T-Mobile service will automatically stop.

What happens to your T-Mobile equipment

You must return any T-Mobile equipment within 30 days of cancellation to avoid additional charges. This includes SIM cards, modems, routers, or any other hardware T-Mobile provided. You can return equipment by mail using a prepaid shipping label (call 611 to request one) or drop it off at a T-Mobile store.

If you rented equipment like a home internet gateway, return it promptly — T-Mobile charges $200 or more for unreturned equipment. Keep your tracking number if you mail the equipment back, in case T-Mobile claims it was not received.

Canceling prepaid and month-to-month plans

Prepaid plans have no cancellation fees and no contract. You can stop using your T-Mobile prepaid service anytime — your account will simply expire when your balance runs out or your service period ends. If you want to formally close the account, call 611 and a representative will do it for you, though it's not required.

Month-to-month postpaid plans also have no early termination fees. You pay for the current month and can cancel anytime without penalty. Call 611 to cancel, and your service will end on your next billing date or immediately, depending on what you request.

What to do if you're having billing disputes

If you believe T-Mobile overcharged you or you disagree with a fee, you can dispute it before canceling. Call 611 and explain the issue — representatives can sometimes remove or reduce charges. Document what you're disputing and keep records of the call.

If T-Mobile refuses to adjust the charge and you still want to cancel, you can cancel and then file a dispute with your credit card company or bank. You can also file a complaint with the Federal Communications Commission (FCC) at fcc.gov/complaints if you believe T-Mobile violated regulations. These steps do not prevent cancellation but may result in a refund after the fact.

Frequently Asked Questions

Will I be charged for the month I cancel in?

Yes. T-Mobile charges you through your cancellation date. If you cancel mid-month, you'll pay a prorated amount for the days you used the service. Your final bill arrives within one to two weeks after cancellation.

Can I cancel over chat or email instead of calling?

T-Mobile does not offer cancellation through chat or email. You must call 611 or 1-844-839-4534, or visit a store in person. This policy prevents accidental cancellations and ensures you understand any fees before closing your account.

What if I'm still paying off a phone?

You must pay the full remaining balance when you cancel. You cannot transfer the payment plan to another carrier or pause it. Call 611 to find out the exact amount owed, then decide whether to pay it off or cancel and pay the balance.

How long does it take to cancel after I call?

Your service stops immediately after the cancellation call, though your final bill takes one to two weeks to arrive. If you ported your number, it may take one to three business days for the port to complete before your T-Mobile service fully ends.

Do I need to return my SIM card if I'm switching to another carrier?

Yes. T-Mobile charges $15 to $25 for unreturned SIM cards. Return it within 30 days by mail or at a store. If you're switching to a carrier that uses a different SIM card type, you'll need a new one from your new carrier anyway.