Thank you for the response.
I did indeed file form 1116 for 2019.
Where is the carry-over amount supposed to be entered for the 2020 return?
It seems that Turbo Tax is automatically pulling a carry-over from 2019 into a new form 1116 with only the carry-over that it's trying to file with my 2020 return. It is calculating the credit as zero on that form, however.
This is causing the IRS to reject the return.
