I left US by end of Nov of 2020. The whole 2021 I was outside of the US.
When I file 1040 for 2020 on April 2021, I was not qualified as non-resident status from Dec, 2020 - 2021 (not reach 12 months duration at that time.) So I filed it as resident.
So now I asked Turbotax to amend my 2020 return by filling my qualified non-resident status from Dec.2020. Turbotax did it by filling 1040x and excluded my foreign income during Dec.2020.
But now I realized I was dual status in 2020 and I was non-resident by end of 2020, I should file 1040NR for 2020, is it true? Why Turbox tax didn't mention this during I requested 2020 amend?
