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How can I find out what category a merchant falls into for my credit card's cashback program? [duplicate]
Not clear what you're asking.  Are you trying to figure out their SIC/NAISC classification?  That tells you the business category they fall into, but there's no simple, instant way to find that out.  Much also depends on how the credit card issuer has classified them and how they arrived at that information. They may have a different means of classifying merchants, so you might try to call your bank and ask them, if they're able/willing to tell you.  That'll give you a starting point to figure it out, anyway.