To amend a 2021 tax return using the TurboTax desktop editions you must use the 2021 TurboTax software installed on a personal computer.
The 2021 amended tax return, Form 1040-X, has been available on the 2021 desktop editions for over a year.
Have you updated your 2021 software to the latest release?
Click on Online at the top of the screen and then click on Check for Updates.
Which version is shown on your 2021 desktop edition? Click on Help at the top of the screen. Click on About TurboTax. Click on the Version tab. The current version (Windows) is 021.000.0794
