AVS codes
Last updated: 22 January, 2025
Address Verification Service (AVS) is a fraud prevention tool used to verify that the customer performing a payment is genuine.
It does this by performing an AVS check, which compares the billing address provided by the customer during checkout with the address associated with the payment card.
You receive the result of AVS checks as AVS codes. AVS codes describe whether there was a full or partial match, or a mismatch.
The following table outlines the AVS codes used by Checkout.com and their definitions.
| AVS code | Scheme(s) | Description |
|---|---|---|
| American Express, Mastercard, Visa | Partial match. The street addresses match, but the ZIP code or post code does not. |
| Visa | Partial match. The street addresses match, but the ZIP code or post code could not verified, likely due to an incorrect format. |
| Visa | Full match. The street addresses and postal codes match. |
| Visa | The issuing bank is international so the address and ZIP code or post code could not be verified. |
| Visa | The address could not be verified. |
| Visa | Full match. The street addresses and postal codes match (international only). |
| American Express, Mastercard, Visa | No match. The street address and ZIP code or post code provided by the customer do not match what the bank has on file. |
| American Express | The address could not be verified. |
| Visa | Partial match. The ZIP code or post codes match, but the street address could not be verified, likely due to an incorrect format. |
| American Express, Mastercard, Visa | Service unavailable. Retry the AVS check. |
| American Express, Mastercard | Not supported. |
| American Express, Mastercard, Visa | Address not verified due to lack of issuer support or system malfunction. |
| Mastercard | Partial match. The postal codes match, but the addresses do not. |
| Mastercard | Full match. The nine-digit postal codes and corresponding addresses match. |
| American Express, Mastercard, Visa | Full match. The five-digit postal codes and corresponding addresses match. |
| American Express, Mastercard, Visa | Partial match. The five-digit ZIP code or post code matches, but the street addresses do not. |
| American Express | Cardholder name incorrect but ZIP code or post code matches. |
| American Express | Cardholder name incorrect, but street and ZIP code or post code match. |
| American Express | Cardholder name incorrect, but street matches. |
| American Express | Cardholder name matches. |
| American Express | Cardholder name and ZIP code or post code match. |
| American Express | Cardholder name, street, and ZIP code or post code match. |
| American Express | Cardholder name and street match. |