@fanfare wrote:
If someone else used your deductions when your filing status was SINGLE, you should file the IRS fraud form -Form 3949-A Information Referral.
Use 1040-X to revise or correct information on an already submitted tax return.
Mention For 3949-A if you filed or will file that.
Review your corrections carefully and be sure it is all correct before mailing.
You can amend two years back. the deadline for the third year back has passed.
Actually, the instructions say not to use form 3949 to report fraud involving yourself.
And this taxpayer can't use a 1040-X amended return to correct a fraudulent return sent in by their ex. It sounds like the taxpayer here needs to go to their online account, verify if the IRS received their single returns for 2019 and 2020, and if not, mail them in. They may want to attach a note that they were legally divorced and did not sign or agree to an electronic signature on a joint return.
