How to read the results
Each row shows the four-digit code, the category description and an editorial context label. The description tells you what kind of business the code is meant for. The label tells you how much additional evidence an underwriter commonly asks for in that category. Read why an MCC is a category, not a risk score before drawing conclusions.
Frequently asked questions
What is a merchant category code?
A merchant category code (MCC) is a four-digit number assigned through the acquiring relationship to describe a merchant's primary line of business. The code system is standardized in ISO 18245 and used by card networks, issuers and acquirers.
Who assigns a merchant's MCC?
The acquirer or its processing partner assigns the code during onboarding, based on the merchant's primary activity and the applicable card-network rules. A merchant cannot simply choose a code to avoid scrutiny.
Does a high-risk MCC mean my account will be declined?
No. The code is one input. Underwriting also looks at products, marketing, delivery timing, licensing, geography, dispute history and controls. The same code can lead to very different outcomes.
Are the risk labels in this search official?
No. The labels are editorial context to help readers understand common underwriting attention. They are not Visa or Mastercard classifications. Check current network rules and your processor's documentation for live decisions.