T-Mobile Return Policy: 14 or 20 Days, Restocking Fees & Costco Rules
By ReturnClerk · Verified Oct 31, 2026 against 1 official source · next review Dec 15, 2026 · Report a change
Quick answer
14days
from the purchase or lease date
If you bought a device at a T-Mobile store, you can return or exchange it within 14 days of the purchase or lease date, while devices bought online or by phone get 20 days from the date they shipped 1. Devices must come back with the receipt, in the package with all contents, undamaged and working 1. T-Mobile may charge a restocking fee of $25, $50 or $75 depending on the device's Full Retail Price, and refunds are reduced by rebates, taxes and fees, and shipping costs 1.
On this page
- Return windows by where you bought
- What condition the device must be in
- Restocking fees
- What gets taken out of your refund
- How to return a device bought online or by phone
- Store purchases
- Costco and authorized dealer purchases
- If you don't return the device, or it comes back damaged
- Tips before you return
- Frequently asked questions
T-Mobile's return rules depend on one thing more than anything else: where you bought the device. A phone from a T-Mobile store, one shipped to your door, one from Costco and one from an authorized dealer each follow different terms. This guide follows the return policy on T-Mobile's Legal Center.
Return windows by where you bought
| Where you bought | Return window |
|---|---|
| T-Mobile retail store | 14 days from the purchase or lease date 1 |
| Online or by phone | 20 days from the date the device shipped 1 |
| In partnership with Costco | 90 days from the purchase or lease date 1 |
| Authorized third-party dealer | The dealer's own policy; 14 days to cancel service 1 |
T-Mobile also publishes separate terms for Hawaii, Puerto Rico and all other states, so check the version for your state on its return policy page 1.
What condition the device must be in
For both store and online purchases, return the device with your receipt, in its package with all contents, undamaged and in good working condition 1. There must be no material alterations to the device's hardware or software 1. The same rules apply to accessories, which T-Mobile's policy treats as a "Device" 1.
Restocking fees
T-Mobile may charge a restocking fee based on the device's Full Retail Price (FRP), for store and online purchases alike 1:
- $75 for devices with an FRP of $600 or more 1
- $50 for devices with an FRP between $300-$599 1
- $25 for devices with an FRP of less than $300 1
What gets taken out of your refund
Refunds and exchanges are reduced by any rebates you received, applicable taxes and fees, and shipping costs 1. If you got the device through a promotion, you may have to return every item you received with it, and the return could make you ineligible for the promotional discount 1.
For online and phone orders, prepaid services, e-coupons and gift cards are non-refundable 1.
How to return a device bought online or by phone
- Get a Return Authorization. New customers call 1-866-675-1292; current customers returning an upgrade device call 1-800-937-8997 1.
- Choose store or mail. Bring the device to a T-Mobile retail location, or ship it back 1.
- If shipping, contact T-Mobile and it will email you a prepaid shipping label 1.
- Watch the clock. The 20 days run from the date the device shipped to you, and you're responsible for any charges until your service is cancelled 1.
Within that window you can return the device for any reason, exchange it, or cancel a new service activation 1.
Store purchases
Bring the device to a T-Mobile retail location within 14 days of the purchase or lease date to return or exchange it for a refund 1. The receipt, packaging and condition rules above apply, and so do restocking fees and deductions 1.
Costco and authorized dealer purchases
Costco: devices bought in partnership with Costco can be returned within 90 days of the purchase or lease date 1. You need the original receipt and all original contents in good working condition 1. Costco's dedicated T-Mobile support team handles these returns at 833-906-2803 1. All devices received in a promotion such as Buy One Get One Free must be returned, and some limited edition devices may not be refunded or exchanged 1.
Authorized dealers: refunds and exchanges follow the individual dealer's return policy 1. To cancel service, return the device in its original package with all contents, undamaged and working, within 14 days of purchase to the dealer location where you bought it 1.
If you don't return the device, or it comes back damaged
For online and phone purchases, T-Mobile may take one or more of these steps if a device isn't returned or comes back damaged or altered 1:
- Prevent the device from working 1
- Decline to process your service cancellation 1
- Charge you the cost to repair a damaged or altered device 1
- Charge you the suggested full retail price of a destroyed, altered or non-returned device, which may be more than you paid, plus shipping and handling 1
Tips before you return
- Confirm which channel you bought from; that sets your deadline 1.
- Keep the box and every accessory, since all contents must come back 1.
- Check the device's Full Retail Price to estimate your restocking fee 1.
- If you got a rebate or promo, expect it to be deducted or voided 1.
Compare with the Verizon return policy, browse our returns hub, or visit the T-Mobile store page.
Frequently asked questions
How many days do I have to return a phone to T-Mobile?
It depends on where you bought it. Store purchases get 14 days from the purchase or lease date, online and phone orders get 20 days from the date the device shipped, and devices bought in partnership with Costco get 90 days 1. Devices from an authorized dealer follow that dealer's own return policy 1.
Does T-Mobile charge a restocking fee?
It may. The fee is based on the device's Full Retail Price: $75 for devices at $600 or more, $50 for $300-$599, and $25 for devices under $300 1.
Can I return a T-Mobile phone I bought online to a store?
What happens if I don't return the device after cancelling?
T-Mobile may block the device, refuse to process your service cancellation, or charge you the full retail price of a non-returned device plus shipping and handling, which can be more than you paid 1.
Can I get a refund on a T-Mobile gift card or prepaid service?
No. For online and phone purchases, T-Mobile lists prepaid services, e-coupons and gift cards as non-refundable 1.
Sources
- 1Return PolicyT-Mobile Legal Center, text captured Oct 31, 2026
Verified Oct 31, 2026 against 1 official source. Next review Dec 15, 2026.
ReturnClerk is not affiliated with T-Mobile. Policies change and individual stores may apply them differently, so confirm with the retailer before you act. Spotted something out of date? Tell us or read how we verify.