I need to amend 2020 return, but it's not supported by IRS Free File Program. Never filed amended return before, not sure what to do.

[Chriskoc0927]

I've never had to file an amended return before, so I'm not sure what to do other than what I've been told. I need to amend my return for 2020, but I get a message telling me that it is not supported by IRS Free File Program delivered by TurboTax. Do I need to use a different program? Or have a tax person file it? Thanks.

[fanfare]

You must have a copy of the original tax return you want to update (or a transcript).

Then you  prepare your correct tax return (using TurboTax for example, or other means) and print it.
Then lay the paper printouts of both returns (correct and original) side-by-side.
You now have all the information needed to prepare Form 1040-X by hand.
It's pretty straight-forward.

The blank form in fillable PDF format and its instructions are available at www.irs.gov.
Refer to the Instructions for what is to be attached to Form 1040-X.

Do not include your old 1040 nor your revised 1040 because the Form 1040-X reflects any changes there and becomes your new tax return.
Mail to the address shown in the Instructions.