T-Mobile's trade-in program lets you turn in your old phone for credit toward a new device, reducing your upfront cost while responsibly recycling electronics.
T-Mobile trade in phone: how the program works
T-Mobile's trade-in program is available to new or current postpaid subscribers who are making a qualifying device purchase, activating a new line, or upgrading an existing line. The basic workflow is straightforward: you choose a new device, get an estimated trade-in value for your old phone, prepare your old device, and then send it to T-Mobile. The trade-in value is applied as credit toward your new purchase or your account, and T-Mobile's sustainability commitment means traded-in devices are either reused, resold, or recycled.
Step 1: Check your device eligibility
Before you start, confirm your old phone meets T-Mobile's specific criteria. The device must power on and stay on, have no cracked or damaged front display, and show no signs of liquid damage or internal moisture. Your device must also be fully owned and paid off, it cannot have an outstanding installment balance, and it must not be flagged as lost or stolen. You must be the primary account holder or an authorized user on the T-Mobile account to proceed with the trade-in. If your phone meets these conditions, you're ready to proceed.
Step 2: Get your trade-in estimate
Visit T-Mobile's trade-in page and provide details like the device's make, model, and condition. You will receive an instant quote showing the estimated value. Note that the final value depends on T-Mobile's physical inspection of the device after you send it in. Having the original purchase receipt or documentation for your old device can serve as proof of ownership and facilitate the trade-in process. The estimate gives you a clear idea of what your old phone is worth before you commit to a new purchase.
Step 3: Prepare your old phone for trade-in
- Back up all personal data, contacts, photos, documents, to your computer or cloud account.
- Log out of all accounts, including Apple ID, Samsung account, and any other service accounts.
- Disable "Find My iPhone" or similar Android anti-theft features, and deactivate the device.
- Perform a factory reset to erase personal information. It is your responsibility to remove all personal data, passwords, security software, or user locks before trading in the device.
- Remove the SIM card from the phone. You will need it for your new device or for activating phones and SIM cards on any carrier.
Step 4: Choose your new device and place your order
Select a qualifying new device on T-Mobile's website or in a retail store. When you place your order, the trade-in estimate is applied toward the cost. If you are taking advantage of a promotional offer, be aware that to maintain promotional credits, you must adhere to any associated requirements, such as new line activations or specific rate plans, for the entire duration of the credit period. Your trade-in value may be applied as an instant discount or as monthly bill credits depending on the promotion.
Step 5: Return your trade-in device
You have two return methods. If you ordered online, your new device shipment will include a box, packing materials, a prepaid shipping label, and instructions for your trade-in device. Pack your old phone securely and ship it back using the prepaid label. Alternatively, you can bring the device to a T-Mobile retail store. Returning the device in a T-Mobile store is often the fastest method, as the trade-in value and promotion are applied to your account immediately. You typically have 30 days from the date you receive your new device to return your old trade-in device. T-Mobile for Business customers who initiate trade-ins online or over the phone have 45 days. Failure to return your trade-in device by the specified expiration date may result in disqualification from the promotional offer and a requirement to pay back any credits already received.
What happens after you trade in your phone
Once T-Mobile receives your device, they perform an inspection. T-Mobile states that they perform an additional data wipe on all traded-in devices, even after you have performed a master reset. If your device does not meet the stated eligibility criteria upon inspection, you may receive a partial trade-in value or lose eligibility for associated promotions, with the option to have your device returned to you. Devices that pass inspection are either reused, resold, or recycled as part of T-Mobile's sustainability efforts.
Frequently Asked Questions
What types of phones can I trade in with T-Mobile?
T-Mobile accepts a wide range of phones, including smartphones and basic phones from various manufacturers.
How does the Keep and Switch program work with trade-ins?
T-Mobile's "Keep and Switch" program is available to brand-new customer accounts as of July 9, 2026. It offers reimbursement for a previous carrier's remaining device payment balance, up to $800 per line, when you port a number and activate a new voice line. This is separate from the standard trade-in program and does not require you to trade in your current phone.
What happens to my promotional credits if I change my rate plan?
Changing your rate plan or canceling a required line may result in losing those credits.
What should I do if I miss the 30-day return deadline?
Contact T-Mobile customer service immediately to discuss your options.
Do I need to include accessories like chargers or the original box?
No. Accessories such as chargers, cases, or original packaging are not required for the trade-in. You only need to return the device itself, prepared as described in the preparation steps above.
Related reading: What Is A Jump Upgrade At T-Mobile.
