Judopay Documentation

Address Verification System

Address Verification System (AVS) is a fraud prevention scheme, using information provided by the consumer to verify the details of the card used in the transaction.


It is used to help verify details in cardholder not present transactions.

AVS performs a cross-reference check in the following two ways:

  • The Address Numeric Check

  • Postcode Check

The numerical values contained in both the address and the postcode that are submitted by the consumer during the transaction, is checked against the values entered for the billing address.

If the check is successful the transaction will be processed, otherwise the charge will not be authorized.


We recommend performing tests generating successful and declined payments using the correct and incorrect billing Postcode/Zip codes.