I filed (by mail) the amended tax returns for the year 2021. IRS sent me the letter stating that I forgot to sign it. I signed it (form 1040x and form As Amended Tax Returns) and mailed the signed documents back. Then I got another letter from IRS that the amended return is not accepted by them as I didn’t signed it!!! How come? I did!
Does anyone know what to do with that? Thank you in advance.
