MCC

You charge dinner at a hotel restaurant to your card, expecting the dining bonus you rely on for outsized value, and the transaction posts at the base earn rate instead. The reason is not an error; the hotel assigned that restaurant an MCC for Lodging, not for Restaurants and Dining. Your card issuer reads the four-digit MCC attached to every charge, and that code alone determines which bonus category fires, if any fires at all.

A common misconception is that the merchant's name or the physical category of the purchase controls the bonus. It does not. A coffee shop inside a grocery store may carry a Grocery MCC and earn your grocery bonus, or it may carry its own Eating Places MCC, or even a General Merchandise code, depending on how the store set up its point-of-sale system. Costco is a clean example of the confusion: many cardholders expect a warehouse-club or wholesale-club bonus, but Costco's MCC is typically classified under Discount Stores, which means most issuers do not count it toward warehouse or grocery bonuses at all.

The codes themselves are maintained by the major payment networks and run from 0001 to roughly 9999, grouped into broad industry ranges. Issuers build their bonus-category logic around specific MCC ranges or individual codes, and they do not publicize those lists in full. An issuer might include MCCs 5812 (Eating Places, Restaurants) and 5814 (Fast Food Restaurants) in its dining bonus but exclude 5813 (Drinking Places) or hotel-restaurant codes that roll up under 7011 (Hotels and Motels). There is no universal standard for which MCCs a card rewards at a bonus rate; each issuer defines its own mapping, and the same purchase at two different terminal setups can earn differently.

Before you transfer points or count on a category multiplier to hit a valuation threshold, confirm the actual MCC the merchant posts under. Most issuers allow you to check a recent statement transaction detail, and some third-party tools let you look up a merchant's likely code before you charge. The practical takeaway: trust the MCC, not the merchant name, when projecting your earn rate.