Per IRS Instructions for Form 1040-X, starting on page 9:
You are only changing information. If you aren’t changing any dollar amounts you originally reported, but are changing information, do the following.
You can complete Form 1040-X Amended U.S. Individual Income Tax Return in the TaxAct program. (See the Form 1040-X - How to Create an Amended Return FAQ for instructions.) Note. The entire first page of the form will be filled out including Columns A, B, and C.
If you would instead like to print a blank Form 1040-X and complete only the sections mentioned previously, click the link in this sentence to access the form on the IRS website, which you must then complete manually. TaxAct's Development Team will review adding an option to complete an information-only Form 1040-X in the future.
Note that any link in the information above is updated each year automatically and will take you to the most recent version of the document at the time it is accessed.