If you entered the correct 2023 AGI from your 2023 federal tax return, Form 1040 Line 11 and the IRS rejects the return for the AGI, then there is a good possibility the IRS does not have the 2023 AGI for your Social Security number in their database.
Enter a 0 (zero) for the 2023 AGI and e-file the 2024 tax return again.
