I did my 2021 federal Amended 1040X Tax Return on 2/25/2022. When it comes time to print the Amended federal 1040x, it also printed my 1040 unsigned. On my 2021 Federal 1040 I got a refund. Now on the Federal 1040X I owe. Turbo Tax instruction page say to mail return (I assume everything that printed for federal tax return only and mail to irs with a check) When I continue it is allowing me to file the amended federal return. It also gave me a website to use to pay the taxes I owe. www.irs.goc/payment.
If I mail the return and payment, do I sign and date both the 1040X and 1040 that I previously submitted?
If I file online, do I have to mail any return to the IRS? Would I just mail them a check, or do I use that web site to pay what I owe by credit card? If I pay by credit card would this be treated as a purchase or cash advance transaction by the credit card company?
Mailing:
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.
Include any new/corrected document only if it shows federal tax withheld, and include in order only those Sequence Numbered tax forms and Schedules that changed or were added due to your amendment.
Attachment Sequence Number is on all the forms and Schedules that come after 1040.
If you are using TurboTax you have to do this by visual comparison. The program won't break out those pages for you.
Mail to the address shown for your location in the Instructions for Form 1040-X.
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e-File:
You can e-File 1040-X only if you did e-File 1040.