After you file


@ps2022 wrote:

Today (Feb 5, 2022) can I e-file an ammended return for 2020? Turbox is telling me the signature date must be between Jan 1 and  Dec 31, 2021.


You selected to have the amended tax return e-filed.  The 2020 amended tax return cannot be e-filed.  Change your filing method to File by Mail.

Print, sign and date the amended return.