Fill out 14039 (Identity Theft Affidavit) online
Form 14039 is the Identity Theft Affidavit used to report suspected tax-related identity theft to the IRS. It alerts the IRS that someone may have used your SSN or ITIN to file a fraudulent tax return or for other tax fraud.
How to fill out 14039 (Identity Theft Affidavit)
Enter your personal information
Provide your full name, current and previous addresses, SSN or ITIN, date of birth, and phone number.
Describe the identity theft
Check the appropriate box indicating how you discovered the theft (received an IRS notice, return rejected, etc.). Provide the tax year(s) affected.
Attach required documentation
Include a clear, legible copy of a government-issued photo ID (passport, state ID, or driver's license). Also attach any IRS notices you received related to the suspected fraud.
Sign and submit
Sign the affidavit under penalties of perjury. Mail or fax to the IRS Identity Protection Specialized Unit at the address listed in the instructions.
About 14039 (Identity Theft Affidavit)
Who needs this form
Individuals who believe they are victims of tax-related identity theft. Common signs include receiving an IRS notice about a return you did not file, a notice that you owe additional tax for income you did not earn, or your e-filed return being rejected because a return using your SSN was already filed.
Where to submit
Submit by mail or fax to the IRS Identity Protection Specialized Unit. The address and fax number are listed in the form instructions. Attach a copy of a government-issued ID (do not send originals).
Source and content freshness
- Reviewed: 2026-02-16
- Filing deadlines may shift for weekends and holidays. Verify due dates with official instructions.
Common mistakes to avoid
- Not attaching a copy of a valid government-issued photo ID
- Filing this form when the issue is not tax-related identity theft (e.g., credit card fraud should go to the FTC)
- Not including supporting documentation such as the IRS notice received
- Sending original documents instead of copies
Frequently asked questions
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What happens after I submit Form 14039?
The IRS will review your affidavit and investigate the suspected identity theft. This process typically takes about 180 days. During this time, the IRS may place an identity theft indicator on your account to help protect you. You may receive an Identity Protection PIN (IP PIN) for future filings.
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