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Top Red Flags to Spot a Fraudulent Check

Learn the telltale signs of fake checks before they impact your business.

Published on: May 2, 2025 at 8:20 AM

1. Unusual Check Amounts

Checks with round or unusually high amounts—especially from unknown customers—can be a red flag. Fraudsters often try to pass large amounts quickly to avoid detection.

2. Faded or Poor Print Quality

Authentic checks have crisp, professional printing. If you see blurry logos, misaligned text, or low-resolution bank details, it may be a sign of forgery or desktop printing.

3. Missing or Altered Information

Watch for checks with missing account numbers, blank fields, or hand-written edits. Legitimate checks rarely have visible corrections or altered routing/account info.

4. Mismatched Fonts and Layout

Inconsistent fonts or layout formatting are common in fake checks. If the fonts differ across sections (e.g., payee vs. signature), it's worth taking a second look.

5. Check Number Out of Sequence

Check numbers that are very low (like 001) or don’t align with a customer's past checks can indicate that a new or suspicious account is being used.

6. Stale or Future-Dated Checks

Be wary of checks dated too far in the past or future. Fraudsters sometimes backdate checks to avoid detection systems or postdate to delay return processing.

7. Inconsistent Bank Details

If the bank name doesn't match the routing number, or the routing number is from a different region than the issuer, that's a major red flag. Validate routing info whenever possible.

8. Customer Behavior Raises Suspicion

If a customer is evasive, rushes the transaction, or provides inconsistent ID details, pair those behaviors with the check’s red flags before making a decision.

Final Thoughts

Spotting a fraudulent check isn’t always easy, but being aware of these red flags helps retailers prevent costly errors. Always validate check details using a fraud prevention system before proceeding with a transaction.

About Check Karma

We equip check cashers and retailers with fraud detection tools that identify risk before a bad check enters your system.