After you file


@ maralee1 wrote:

I was not able to print my 2020 tax return and need the AGI on line 20


You didn't describe the printing problem you're having.  What/where is the roadblock when you try to print it?   Was it prepared in Online TurboTax or the desktop software (CD/download)?   Do you have the PDF of the return?

 

And the 2020 AGI is not on Line 20.  The 2020 AGI is on the 2020 Form 1040, Line 11.