@TammySue Go to this IRS website for information on e-filing - https://www.irs.gov/individuals/electronic-filing-pin-request
As stated on the IRS website - When self-preparing your taxes and filing electronically, you must sign and validate your electronic tax return by entering your prior-year Adjusted Gross Income (AGI) or your prior-year Self-Select PIN.
If you do not have the prior year 5 digit self-selected PIN then for tax year 2021 you can enter any 5 digit number for the PIN. The 2020 AGI is used to verify your 2021 tax return for e-filing.
If the 2020 AGI is being rejected by the IRS, even though you entered the correct 2020 AGI from the 2020 Form 1040 Line 11, then there is a very good possibility that the IRS does not have your 2020 AGI in their database.
Enter a 0 (zero) for the 2020 AGI and e-file the 2021 tax return again.
