MCC 8734
Testing Laboratories ( non-medical)
What is MCC 8734?
8734 is the Merchant Category Code for Testing Laboratories ( non-medical). It sits within professional practices (legal, medical, accounting) and membership organizations. Card networks — Visa, Mastercard, Discover and American Express — assign a four-digit MCC like this one to every business based on what it primarily sells, and it travels with each card transaction the business runs.
Who's assigned MCC 8734?
Businesses classified as Testing Laboratories ( non-medical) are typically assigned MCC 8734 when their merchant account is boarded. Your payment processor sets the code based on how your business is described and what it sells — so a business whose primary activity matches this category will usually carry 8734.
How MCC 8734 affects your processing
Your MCC influences your interchange rates, how the card networks classify your risk, and which programs apply to you — reward categories, debit routing, and surcharge or cash-discount eligibility. For a standard-risk category like this, the thing that matters most is simply making sure your code is accurate and your markup over interchange is fair — that's usually where merchants quietly overpay.
Is 8734 the right code for your business?
If the MCC on your statement doesn't match what you actually sell, it can affect your costs and your eligibility for certain programs. Upload your last statement and we'll confirm your category, check your effective rate against it, and show you — line by line — exactly what you'd save.
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