I am attempting to efile an amended 2020 tax return (in January 2022). Turbotax premier 2020 allows me to go through all the steps of efiling, but when I submit it says that my signature date (01/18/2022) is not valid, that the date must be in 2021.
Is this a bug, or does TurboTax not support eFiling an amended 2020 return in 2022?
