You can efile a tax return for the current year and the two preceeding years. So if you efile 2023 you can efile 2022 and 2021. To file for 2020 you will need to mail the return. You can use Turbo Tax 2020 Premier to do a paper copy. When you complete the return, go to the efile under the File tab and select mail for both federal and state returns. Hope this helps.
