I had the same issue today, after entering the AGI from 2020 (a Joint return both in 2020 & this year). Oddly, each rejection said the AGI for my spouse was the issue, never mentioning me. The Intuit app had the correct figure already entered in their window provided for correcting and re-submitting and I tried again, to no avail. I went to the IRS site that lets you view/download recent IRS returns (including my Joint 2020 return), and verified that the IRS data shown on their site has the same figure I'd been entering.
As I was preparing to start the process of mailing my Federal and State returns (the State return kept being Rejected simply because the Federal Return was rejected), and having read a TON of these postings, I decided to try entering a "0" and re-submitting for a 3rd and final attempt. Guess what? It WAS accepted!
Now I can calm down as my anger had risen dramatically, knowing I would be waiting 2 or 3 months (or more??) to get the money back I really need to live on!
