Add Yahoo as a preferred source to see more of our stories on Google. Merchant category codes, sometimes called MCC codes or merchant codes, classify merchants based on the products or services sold.

A merchant category code — or an MCC — is a four-digit number used by credit card companies to classify businesses for payments, taxation and rewards purposes. MCCs affect the interchange rates and ...

Visa, MasterCard and American Express said they will implement a new merchant category code for gun retailers. The International Organization for Standardization approved the code last week. The ...

Merchant category codes, sometimes called MCC codes or merchant codes, classify merchants based on the products or services sold. Credit card issuers use these codes to determine how to categorize ...