0. The official status as of 3/6 is that Form 1116 Sch B is unsupported for E-file:
https://care-cdn.prodsupportsite.a.intuit.com/forms-availability/turbotax_fed_online_individual.html
1. However, if you can wait, multiple people have received a response from officeofthepresident stating that Intuit is working to allow E-file by attaching Form 1116 Schedule B as a PDF file.
2. (If you cannot wait) If you have no carryover from a prior year (2020 or earlier), some have suggested overriding carryover from this year (2021) to zero. However, it would seem one would then forfeit the carryover. I am not sure if this is what an amendment is intended for, but would a better solution be to change foreign tax paid (line 7) on 1099-DIV to the allowed foreign tax credit amount, file (again, this is if you cannot wait), then when Schedule B is available correct line 7 on 1099-DIV and amend the tax return?
3. Gary GG suggested looking into lowering line 18. Unfortunately, like krsbozo it did not work for me for 2021.
https://ttlc.intuit.com/community/tax-credits-deductions/discussion/re-2021-form-1116-schedule-b-car...
https://ttlc.intuit.com/community/tax-credits-deductions/discussion/re-2021-form-1116-schedule-b-car...
https://ttlc.intuit.com/community/tax-credits-deductions/discussion/re-2021-form-1116-schedule-b-car...
According to page 21 of the Form 1116 Instructions, because I did not adjust lines 1a and 5, I must not complete the Worksheet for Line 18.
https://www.irs.gov/pub/irs-pdf/i1116.pdf
In the "Adjustment exception" paragraph:
make election = not completing the Worksheet for Line 18.
Must make election, so must not complete worksheet, if chose not to adjust lines 1a and 5.
Cannot make election, so cannot not complete worksheet, if made adjustments to lines 1a and 5.
4. TurboTax is calculating line 3eA correctly. I had failed to notice this from Form 1116 Instructions: "Lines 3d and 3e
For lines 3d and 3e, gross income means the total of your gross receipts (reduced by cost of goods sold), total capital and ordinary gains (before subtracting any losses), and all other income (before subtracting any deductions)."
