THERE IS AN ERROR in the present (3/15/2022) version of TurboTax Deluxe. For users who filed "married filed jointly" in 2020, it imports the JOINT AGI as the spouse's AGI. The IRS apparently enters $0 for the spouse's AGI in that case, and therefore rejects the return for an ID-code mismatch.
At least until TurboTax fixes this, THE SOLUTION, when the IRS rejects the return for that reason, is to follow directions in TurboTax to get to the correction point, and enter $0 for the spouse's 2020 AGI.
