Duplicate a return in the software

[newyorkbob]

I'm running the desktop Deluxe version.  My 2021 situation will be significantly different than 2020.  I'd like to do a trial return with my best guesses of the changes; but more than half of the return will be the same.  Is there an easy way to copy the completed, but not yet filed 2020 return with a different ID and work on that.  I can achieve the same thing with a bunch of data entry; but I'm lazy

[DoninGA]

If you are using the TurboTax desktop CD/Download editions you can use the What-if Worksheet.

Click on Forms.  When if Forms mode click on Open Form at the top left of the screen.  Type in what-if and then click on the result to open the worksheet.