A business-to-business (B2B) sale is one where the customer is another company rather than an individual consumer — the payment can cover goods, services, or a mix of both, moving through a card network, an ACH/wire transfer, or another payment platform entirely. A closely related category is B2G (business-to-government): a sale to a local, state, or federal government agency. Both differ from a typical b2b and b2c mix in one key way — the payment data required, and the rate you pay, both depend on how the transaction is coded and processed.
Every merchant is assigned a Merchant Category Code (MCC) by the card associations, based on the products or services the business provides. To access the lower interchange rates available on B2B card payments, your MCC needs to actually identify you as a B2B merchant — and the associations don’t treat this consistently. Visa offers a discounted rate for qualifying MCCs that meet its other criteria; MasterCard also uses MCC codes but doesn’t offer a B2B discount at all.
Beyond the MCC, qualifying for lower B2B rates means submitting more payment data with each transaction. Card networks recognize three tiers — Level I, Level II, and Level III — though naming varies: Visa calls them “data levels,” MasterCard calls them “data rates.” Support also varies sharply by network:
Whatever data level applies, every transaction still needs the correct MCC identifying you as a B2B merchant first — the data levels add onto that, they don’t replace it.
Merchant DBA name, transaction amount, and billing zip code.
Sales tax amount, customer code, merchant postal code, merchant tax identification number, invoice number, and order number.
Product commodity code, item ID or SKU, item description, unit price, quantity, unit of measure, extended price, and line discount.
Level III is the deepest tier, and it shows: capturing that much line-item detail on every sale is a real lift, which is why not every processor supports it well.
Not every processor can handle Level III’s data requirements, and not every business needs to go that deep. Some merchants only need Level I to operate; others benefit from Level II; higher-volume B2B and B2G accounts often see the biggest savings at Level III. Beyond card payments, many B2B relationships also settle through automated clearing house (ACH) transfers, wire transfer, or recurring payments for standing contracts — a real payments solution for B2B needs to support whichever mix your customers actually use, not just card-present retail flows, and increasingly needs to support real-time online payment options alongside older paper checks and manual invoicing.
The right processor matches your transaction mix and data-level needs to a setup that actually lowers your effective rate — rather than leaving savings on the table because Level II or III data was never captured.
Let’s talk about your setup. CARDZ3N — Technology with a Human Touch — (702) 623-3528 contact@cardz3n.com
Every merchant's processing setup is different, so the right answer depends on your industry, sales channels, average ticket size and chargeback history. CARDZ3N's payments specialists review those details with you and match your business with the right sponsor bank, gateway and risk tools, whether you sell online, in store, by invoice or on a recurring subscription.
We work with merchants across the USA, Canada, the UK and the EU, including high-risk, B2B and fast-growing businesses that traditional processors often turn away. If you would like a second opinion on your current rates, contract terms or approval options, contact our team for a free, no-obligation processing review.
CARDZ3N Inc is headquartered in Las Vegas, Nevada, and provides merchant services to businesses that traditional processors turn away. Backed by top-tier sponsor banks and processors, CARDZ3N combines institutional stability with the speed of a specialized team that understands high-risk industries. Services include high-risk account underwriting and placement, gateway solutions across the major gateway platforms, POS integrations, ACH and check processing, chargeback prevention through ChargebackZ3N, and business lending and working capital. Its AerospacePay division serves OEMs, MROs, FBOs, and repair stations with B2B and B2G payment processing. CARDZ3N serves merchants in the USA, Canada, the UK, and the EU.
Start protecting your revenue from chargebacks today — schedule your complimentary consultation with CARDZ3N’s dispute management specialists.
