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Question: What can I do if I think someone has filed a tax return using my Social Security number?
The IRS has security measures in place to verify the accuracy of tax returns and the validity of Social Security numbers submitted.
- If you receive a notice from the IRS that leads you to believe someone may have used your Social Security number fraudulently, please notify the IRS immediately by responding to the name and number printed on the notice or letter.
- If you are an actual or potential victim of identity theft and would like the IRS to mark your account to identify any questionable activity, please complete Form 14039 (.pdf), Identify Theft Affidavit. Mail or fax the form to the address or fax number listed on the notice with your tax return if your electronic filing was rejected or to the address/fax located in the instructions.
- You may also contact the IRS’s Identity Protection Specialized Unit (IPSU) at 800-908-4490. IPSU employees are available to answer questions about identity theft and resolve any tax account issues that resulted from identity theft.
- Review Publication 4535 (.pdf), Identity Theft Prevention and Victim Assistance, for more information. It is available in both English and Spanish.
- If you suspect someone else is using your Social Security number, or to secure information on how to prevent identity theft, you can contact the Federal Trade Commission (FTC) Identity Theft Hotline toll-free at 877-438-4338.
- Taxpayer Guide to Identity Theft
- Law Enforcement Assistance Pilot Program on Identity Theft Activity Involving the IRS
- Identity Protection
- How Do You Report Suspected Tax Fraud Activity?
Category: IRS Procedures
Subcategory: Reporting Fraud