I filed a 1040 extension for 2021 (not yet filed) and now discover that I have foreign tax redetermination for January 2021. My foreign tax carryover from 2020 is higher than the tax redetermination for 2021 (i.e. I will have, net, a foreign tax credit carry forward to 2022). Do I have options? Do I need to still file Form 1116 Schedule C by mail and the many pages of my return that now cannot be e-filed? I understand that if I do have to file Schedule C, TurboTax (TT) does not support said form, which begs the question, does TT have a schedule that highlights when unsupported tax forms may be implemented into the program in the future?
