Merchant category code
A Merchant Category Code (MCC) is a four-digit number listed in ISO 18245 for retail financial services. An MCC is used to classify a business by the types of goods or services it provides.
Assignment of MCCs
MCCs are assigned either by merchant type (e.g., one for hotels, one for office supply stores, etc.) or by merchant name (e.g., 3000 for United Airlines) and is assigned to a merchant by a credit card company when the business first starts accepting that card as a form of payment. The same business may code differently with different credit cards, and different sections or departments of a store may code differently.
Uses of MCCs
An MCC reflects the primary category in which a merchant does business and may be used:
- to determine the interchange fee paid by the merchant, with riskier lines of business paying higher fees
- by credit card companies to offer cash back rewards or reward points, for spending in specific categories
- by card networks to define rules and restrictions for card transactions (for example, Automated Fuel Dispensers (MCC 5542) have specific rules for authorization and clearing messages)
- for tax purposes, e.g., in the United States, to determine whether a payment is primarily for “services”, which needs to be reported by the payor to the Internal Revenue Service for tax purposes, or for “merchandise”, which does not
MCC lookup tools
There are multiple resources credit card users can consult to predict how credit card purchases with given vendors may be categorized. Examples include:
- "AwardWallet Merchant Lookup Tool". AwardWallet.
- "Chase Ink Bonus Categories Explained". WalletHub.
- "Chase Rewards Categories/Chase Rewards Category FAQs". Chase.
- "List of MCC codes in CSV, ODS, XLS formats". github.
- "An ISO 18245 python library for MCCs". github.
- "Merchant Category Codes" (PDF). www.citibank.com. Citibank.
- "Merchant Category Codes" (PDF). usa.visa.com. USA: VISA. Archived from the original (PDF) on July 10, 2007.
- Frankel, Robin Saks & El Issa, Erin (August 1, 2019). "Merchant Category Codes: Why They Matter for Credit Card Rewards". NerdWallet.CS1 maint: uses authors parameter (link)
- "Welcome to AARP® Credit Card from Chase. Earn 3% Cash Back rewards on restaurant and gas station purchases (Terms)". Chase Bank. Archived from the original on February 7, 2019. Retrieved December 16, 2015.
- "Credit card rewards that really add up". Discover IT. Retrieved December 16, 2015.
- "Internal Revenue Bulletin: 2004-31, Rev. Proc. 2004-43, Merchant Category Codes to Determine Reportable Payment Card Transactions". IRS.gov. USA: Internal Revenue Service. August 2, 2004.
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