pay-taxes

IRS Identity Theft Affidavit — Flag Your Account When Someone Filed or Tried to File as You

Difficulty Medium Risk Low Applies To All Potential Savings Can preserve refunds and reduce long cleanup delays from tax identity theft Last Verified 2026-04-03

IRS Identity Theft Affidavit — Flag Your Account When Someone Filed or Tried to File as You

What Is It?

Form 14039 is the IRS Identity Theft Affidavit used in certain identity-theft situations involving a taxpayer’s federal tax account.

What Most People Don’t Know

  • An IP PIN helps prevent fraud, but Form 14039 is the cleanup side when fraud may already have happened.
  • The affidavit is situation-specific; not every mismatch requires it.
  • Early filing after discovering fraud can matter.

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