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With a change of responsibility, account holders can let another person take ownership of an existing T-Mobile line or account. Only the current owner of an account can authorize an ownership transfer. It's a good idea for both parties to review the T-Mobile Terms & Conditions before the change of responsibility. Please note that you will only be able to move a number if it has been active on the current account for 90 days.

Consumer/postpaid line

  • Contact us to begin the process.
  • Both the new account owner and the existing account owner must call T-Mobile to authorize the change of account ownership.


Business line

This process is strictly for transfers involving at least one business line. 


Potential Account Owner

  • A credit check and a deposit may be required.
  • You'll need to agree to a service agreement.
  • Depending on availability and account type, you may need a new rate plan.
  • You can bring a device or buy a new mobile device.
  • It may take up to one week before you can register the account on My T-Mobile.
  • Your voicemail box may be deleted, so make sure to save any voicemails you want to keep.
  • Make sure you understand the following bill impacts:
    • Already have an account? We'll use the existing billing method. Otherwise, your billing method will be Bill Current.
    • You'll be assigned a new bill cycle and bill due date.
    • You'll be responsible for the account and charges on and after the date of the ownership transfer.
  • Contact T-Mobile Customer Service and speak to our activations team within 30 days after the ownership transfer authorization in order to complete the Change of Responsibility. If the request is not completed within 30 days, the original owner will need to contact us again to file another request.

Transfer an EIP Balance

  • An Equipment Installment Plan (EIP) may qualify to be moved to a different account when the line associated with the EIP has also been transferred.
  • An EIP balance transfer can only be moved to another account once, it cannot be moved again.
  • The line must remain active and keep the original number associated with the EIP.
  • Both accounts must be in good standing; neither can be past due, delinquent, or in write-off status.
  • You have 60 days to move an EIP balance after transferring ownership of a mobile number.
  • Both parties have 48 hours to accept the balance transfer or it will be cancelled.
  • It may take up to two bill cycles for the changes to go into effect.

Contact us to check if your EIP balance is qualified to transfer.


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