High riskIdentity Theft & Data Scams

Tax Identity Theft Scam

In this scam, criminals use your stolen identity to file a fraudulent tax return and claim your refund, or to misuse your tax records, leaving you to untangle the fraud with the tax authority.

Quick verdict

Risk level
High risk
Scam type
Identity fraud (tax)
Main red flag
A rejected return, or a notice that a return was already filed in your name.
What to do first
Contact your tax authority's identity-theft unit and follow their process.

What this scam usually looks like

In this scam, criminals use your stolen identity to file a fraudulent tax return and claim your refund, or to misuse your tax records, leaving you to untangle the fraud with the tax authority.

Example message pattern

Example pattern — not a real report
Example pattern: Your tax return is rejected as 'already filed', or you get a notice about a refund or filing you did not make.

This is a fictional, anonymised example used to illustrate the pattern. It is not a verified real message, and any names are used only to show how the scam typically reads.

Red flags to watch for

  • A return rejected because one was already filed
  • Notices about a refund or filing you did not make
  • Tax records or wages you do not recognise
  • Your tax ID number exposed in a breach
  • Unexpected tax-authority letters

What to do

  • Contact your tax authority's identity-theft unit
  • Follow the official process to report and resolve it
  • Secure your accounts and consider a credit freeze
  • Keep records of all correspondence

If you already clicked or replied

  • Report the fraud to the tax authority promptly
  • File any required identity-theft affidavit or forms
  • Monitor your credit and accounts
  • Protect your tax ID number going forward

What not to do

  • Do not ignore a rejected return or unexpected notice
  • Do not share your tax ID number unnecessarily
  • Do not respond to 'tax' contacts that demand payment by unusual methods

Similar scams

High risk Government & Tax

IRS Tax Scam

This scam uses a call, voicemail, text, or email pretending to be the IRS or another tax agency, claiming you owe back taxes and threatening arrest, lawsuit, or deportation unless you pay at once by gift card, wire, or crypto.
High risk Identity Theft

Synthetic Identity Scam

In this scam, criminals combine real stolen details, such as your Social Security or ID number, with fake information to create a synthetic identity used to open accounts and credit that can affect you.
High risk Identity Theft

New Account Fraud Scam

In this scam, criminals use your stolen details to open new bank, credit, phone, or utility accounts in your name, running up debts and bills that appear under your identity.

Frequently asked questions

How do I know if my tax identity was stolen?
Signs include a return rejected as already filed, notices about filings or refunds you did not make, or unfamiliar wages or records. Contact your tax authority.
What should I do first?
Contact your tax authority's identity-theft unit, follow their official process, file any required forms, and keep records of all correspondence.
How is this different from a tax-agency impersonation scam?
Impersonation scams pretend to be the tax agency to get money. Tax identity theft uses your stolen details to file a fraudulent return in your name.
How do I protect my tax identity?
Protect your tax ID number, file early where possible, use any official identity-protection PIN, and watch for breach notices.

Last reviewed: June 2026

Disclaimer: This page provides educational information only to help you recognise common scam patterns. It is not legal, financial, cybersecurity, or law enforcement advice, and it does not confirm whether any specific message, company, or person is genuine or fraudulent. When in doubt, contact the official organisation directly and report concerns to your local authorities.