Understanding TC40 Fraud Records

The TC40 (Transaction Code) Fraud Record is a key part of Visa’s fraud reporting process. Submitted by the issuing bank when a cardholder reports a transaction as fraud, the TC40 provides early insight into potential fraud risk, often before a formal dispute or chargeback is initiated.

What is a TC40?

The TC40 is part of Visa’s Risk Identification Service and is used by issuers to:

  • Report fraud to Visa
  • Share fraud data with acquiring banks
  • Inform acquirers of potentially compromised merchants

Important: A TC40 is not a chargeback. It is a non-financial alert and does not result in funds being withdrawn.

Viewing TC40s 

To access TC40 data via the Qualpay Merchant Manager:

  1. Go to Reports.
  2. Click on Dispute History.
  3. Click the filter button and set the Type to Fraud Alert.
  4. Click Apply.
  5. The Disputes table will update to show only the items with a type of Fraud Alert.

This lets you view fraud alerts proactively, before they turn into chargebacks or elevate your VAMP ratio.

Why TC40s Matter

  • They count toward your VAMP ratio (for Visa monitoring).
  • High TC40 activity may indicate enumeration attacks or other fraud patterns.
  • Early identification can help merchants take action before penalties apply.

Common Transaction Codes (TCs)

Here are some of the common Transaction Codes used in the Visa ecosystem:

CodeDescription
TC05Sale
TC06Refund
TC15Dispute - sale has been formally disputed
TC40Fraud - cardholder reported transaction as fraud