Can i change my pin number for my 2020 returns?

To efile your 2021 return you must have either the 2020 AGI from the original return  OR   the self selected PIN. 

The 5 digit e-file PIN you used on the 2020 tax return will be on the Federal Information Worksheet on page 4 if you used TurboTax to complete and file the 2020 tax return.

To access your prior year online tax returns sign onto the TurboTax website with the User ID you used to create the account - https://myturbotax.intuit.com/

Scroll down to the bottom of the screen and on the section Your tax returns & documents click on Show.  Click on the Year and Click on Download/print return (PDF)

If you used the desktop CD/Download editions installed on your computer, the only copy of your tax data file and any PDF's will be on the computer where the return was created.  TurboTax does not store online any returns completed using the desktop editions.