It is related to Schedule 3 - Part II - (12D) Claim of Right, IRC 1341.I manually calculated the overpaid tax on previous year (2021).Now I need to attach the "...

I'm going to e-file, and I want to attach 3 PDF files. I googled it, and I got instructions from the site below:https://proconnect.intuit.com/support/en-us/help...