Finding out you’ve been a victim of check fraud can feel overwhelming. Maybe a check was stolen from the mail. Maybe your account shows a payment you never authorized. Or maybe you deposited a check that turned out to be fake. 

No matter how it happened, one thing is true: acting quickly matters. The sooner you respond, the better your chance of limiting financial loss, protecting your account, and preventing further fraud. 

If you think you’re a victim of check fraud, here are the steps to take. 

Step 1: Contact Your Financial Institution Immediately 

Your first call should be to your financial institution. Tell them: 

  • What happened
  • Which transaction looks suspicious
  • When you noticed it  

Your financial institution may be able to: 

  • Place a stop payment
  • Freeze your account
  • Open an investigation
  • Provide information needed to file a report with the authorities  

Do not wait to “see if it clears up.” Time matters. 

Step 2: Review Your Account for Other Fraud 

Fraud may not stop at one transaction. Look through recent account activity for: 

  • Other unfamiliar checks
  • Unusual withdrawals
  • New account changes you did not make  

Review at least the last 30–60 days if possible. If your account information was stolen, criminals may attempt additional fraud. 

Step 3: Document Everything 

Keep records of: 

  • Suspicious transactions
  • Check numbers
  • All related communications including calls, emails or text messages related to the fraud
  • Police or fraud reports  

Write down dates, names, and case numbers. This documentation can help if you need to dispute charges or file reports. 

Step 4: File a Fraud Report 

Depending on the situation, you may need to report the fraud to local authorities or other agencies. This can be especially important if: 

  • Mail was stolen
  • Identity theft is involved
  • A scammer targeted you online  

Ask your financial institution what reports they recommend. Keep copies of everything. 

Step 5: Secure Your Account 

If your account information has been compromised, it may recommend that you open a new account. 

Take additional steps like: 

  • Changing online banking passwords
  • Updating PINs
  • Reviewing linked payment accounts  

If you use the same password elsewhere, update those too. 

Step 6: Replace Compromised Checks 

If physical checks were stolen: 

  • Report the missing check numbers
  • Store remaining checks securely
  • Order new checks if needed  

Do not continue using compromised check numbers. 

Step 7: Watch for Identity Theft 

A stolen check contains personal information. Watch for: 

  • Unfamiliar credit activity
  • Unexpected bills
  • Collection notices
  • New account openings  

Continue monitoring your financial accounts regularly. 

If You Deposited a Fake Check 

If you deposited a fraudulent check as part of a scam, contact your financial institution immediately. Explain what happened. Even if the money appeared in your account, it may later be removed if the check is fake. 

Remember: If someone asks you to send money back after depositing a check, that is a major warning sign. 

How to Protect Yourself Going Forward 

After fraud happens, it’s normal to feel cautious. 

Moving forward: 

  • Monitor your account weekly
  • Use account alerts
  • Mail checks securely
  • Keep checks stored safely
  • Be cautious with unexpected payments
  • Ask questions before acting  

Fraud can happen to anyone. What matters most is how quickly you respond and what you do next. 

Final Takeaway 

By Amy Miller, AFC®Made in partnership with the American Association of Credit Union Leagues, America’s Credit Unions, and TruStage

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