Federal and State Tax Amendment Instructions

Tax Amendment links with access to forms, instructions etc.

See Instructions on How to Complete a Tax Return Amendment Form 1040X or 1040-X. Amend State Returns; Amend Back Taxes; Prepare Online and Mail.

Tax Amendment Form 1040-X: Prepare 1040-X on eFile.com and Print, Sign, and Mail It to The IRS. File Your Taxes and Amendments on eFile.com.

Tax Amendment Forms by States Can Be Found Here. See Detailed Instructions on How to File a State Tax Amendment and Mail It In.