See the following FAQ for instructions to amend a tax return that you filed with TurboTax.
How do I amend my federal tax return for this year?
The IRS says it is currently taking 16 weeks or more to process an amended return.
Don't file the amended return until your first return has been accepted and you have received the original refund.
If you need further help, please tell us whether you are using TurboTax Online or the CD/Download TurboTax software.