While IRS is now accepting 2020 amended returns, Turbo Tax has not yet updated this feature in their desktop software. When I try to amend a previously e-filed, accepted, and fully processed 2020 return in my Turbo Tax desktop version, I get the message "The Amended Return Area Will Be Ready Soon. You've done a great job starting your taxes early, but the IRS is still working on finishing up the Amended Return area (Form 10-40X) for 2020. That Means this area isn't quite ready yet." The IRS website has instructions on how to file an amended return for 2020. About Form 1040-X, Amended U.S. Individual Income Tax Return | Internal Revenue Service (irs.gov)
