AVS & Chargeback LiabilityAVS Can Help Protect You. It’s Not a “Guarantee” Against Disputes, Though.

Can AVS Insulate You From Liability for Chargebacks?

Using address verification can help you prevent third-party fraud. But, what if transactions that go through end up morphing into friendly fraud chargebacks?

Can using AVS help you dodge liability for invalid chargebacks? Is evidence that you tried to prevent fraud a good enough defense for representment? In this chapter, let’s discuss the relationship between AVS use and chargeback liability.

Using AVS to Respond to Third-Party Fraud Chargebacks

A lot of merchants are under the impression that using AVS makes you functionally “immune” to liability for fraudulent chargebacks. That’s a common — yet costly — misconception.

Here’s the thing: although AVS is a critical fraud prevention tool, merely using it doesn’t grant you automatic protection from every fraud-related dispute. AVS is one piece of evidence that you can submit in representment, but the specific value of an AVS check will depend on both the chargeback reason code and the AVS response code.

A full AVS match can strengthen your case against third-party fraud claims, as it provides compelling evidence that the cardholder authorized the purchase. Card issuers may still want to see proof that you secured your checkout environment using complementary fraud detection tools, though, like 3-D Secure 2.0 or multi-factor authentication (MFA).

AVS response codes that aren’t full matches are far less compelling. An AVS check that returns a partial match — or worse, no match at all — suggests that the transaction may have been unauthorized. Rather than bolstering your case, this piece of evidence could potentially be used in the cardholder’s favor.

Also, remember that different issuers and card networks might weigh AVS verification differently than others. The value of an AVS verification may even vary from one reason code to another.

Can AVS be Used to Respond to Non-Fraud Chargebacks?

In short: not really. AVS verification will give you compelling evidence for fraud-related disputes, but it's essentially useless when responding to non-fraud chargebacks. 

Say a cardholder files a chargeback, claiming that they never received the merchandise in question. Or, the cardholder’s bank issues a chargeback for a duplicate transaction, or because your authorization request was declined and you processed the charge anyway. Presenting an AVS match data as evidence won't address the claim being made.

AVS simply confirms that the billing address provided matches the cardholder's address on file. While this helps establish that the legitimate cardholder likely initiated the purchase, it doesn't resolve disputes about transaction processing errors, unfulfilled orders, or merchant service failures.

Smart chargeback defense requires matching your evidence to the specific reason code. So, for authorization-related chargebacks, you need to prove you got proper approval for the transaction amount. For duplicate processing disputes, you have to demonstrate that each charge represents a separate, legitimate purchase. And, when cardholders claim they never received their merchandise or services, you need shipping confirmations, delivery receipts, or service completion records.

Next Chapter

AVS Implementation

Read More