Why when filing a joint return last year and for last yearagain this year does Turbotax require last year's AGI input for both of us individually? Prompt says IRS may reject return with incorrect AGI input
Your 2021 AGI is the way the IRS verifies that the person using the Social Security number is the same person filing a 2022 return---they match up your 2021 AGI to the SSN you are using for 2022. It is your electronic "signature."
Where do I find my AGI?
https://ttlc.intuit.com/community/agi/help/how-do-i-find-last-year-s-agi/01/25947
Your 2021 tax return shows your 2021 Adjusted Gross Income (AGI) If you filed a joint return then the AGI is the same for each of you.
Form 1040 line 11
If you are using the same TT account that you used last year, you should also be able to find this number in your Tax Home for 2021
If entering the amount from your 2021tax return does not work, then try entering “0” instead. If that does not work and you still cannot e-file, then print, sign, and mail your tax return.
You can get a free transcript of your past return from the IRS:
https://www.irs.gov/individuals/get-transcript
Note: If you filed late or amended your return, your correct 2021 AGI may not be in the system.
https://ttlc.intuit.com/questions/1944348-how-do-i-print-and-mail-my-return-in-turbotax-online
Note: If you mail your federal return, you will also need to mail your state return. You will not be able to e-file your state return.
https://ttlc.intuit.com/questions/1944348-how-do-i-print-and-mail-my-return-in-turbotax-online
it is a good idea to use a mailing service that will track it like UPS or certified mail. Then you will know the IRS received it.
If you used the wrong AGI, your e-file be rejected. When you get the rejection notice, correct it and re-file.
https://ttlc.intuit.com/community/agi/help/where-do-i-correct-my-agi-in-turbotax-online/00/26311