Who actually gets the money from card fees?
Every time a customer taps or dials in a card, the fee you pay is split three ways — and only one of those three parties ever negotiates with you.
- The card-issuing bank (the bank whose name is on the customer's card) takes the biggest slice, called interchange. It's set by the card networks, published in rate tables hundreds of rows long, and it is the same for every processor in America. Nobody — not your processor, not Zend Blue, not anyone — gets a discount on interchange.
- The card networks (Visa, Mastercard, Discover, Amex) take a much smaller cut called assessments — the toll for using their rails.
- Your processor takes everything above those two costs. This is the markup, and it is the only part of your bill that is actually negotiable.
That last line is the whole game. Interchange and assessments are wholesale cost — identical everywhere. The difference between paying 2.1% and 3.5% overall is almost entirely what your processor decided to add on top, and how well they hid it.
Why fees keep climbing
Four forces have pushed the average business's effective rate up year after year:
1. Rewards cards took over. Premium travel and cash-back cards carry the highest interchange categories — that 2% cash back your customer earns is funded by your fee. As more consumers upgraded to premium cards, the average cost of accepting a card went up without your processor changing a thing.
2. More payments moved online and over the phone. Card-not-present transactions carry higher interchange and higher fraud risk than a chip or tap payment. Every invoice paid by a link or a card read over the phone costs more than the same card tapped in person.
3. Flat-rate pricing rounds everyone up. Flat 2.9% + 30¢ style pricing is simple, but the rate is set high enough to cover the most expensive card a processor might see. Every time your customer pays with a plain debit card that costs a fraction of a percent wholesale, the difference is pure processor profit.
4. Opacity does the rest. Bundled statements, "non-qualified surcharges," annual PCI fees, monthly minimums — the industry earns billions from line items most owners never decode. When you can't see the wholesale cost, you can't see the markup.
Why some industries pay even more
Processors price risk. Industries with high chargeback rates, delayed delivery windows, or heavy card-not-present volume — travel, coaching, supplements, ticketing, some home services — get labeled high risk and quoted steeper rates, rolling reserves, and stricter contracts. If you're in one of these categories, transparent pricing matters even more, because opaque processors lean hardest on merchants with the fewest alternatives.
What actually lowers your rate
- Get on interchange-plus pricing. Pay the true wholesale cost plus one fixed, visible markup. Cheap cards cost you less; the markup never moves. This single change is where most businesses find 20–40% of their fees.
- Read your effective rate. Total fees ÷ total card volume, once a month. It is the only number that can't be disguised. (Our guide on reading your merchant statement walks through it in 90 seconds.)
- Offer ACH / bank transfer on invoices. Bank-to-bank payments cost a fraction of card rates. For large invoices, one ACH payment can save more than a month of card-fee optimizing.
- Take cards in person when you can. Tap and chip transactions clear at lower interchange than keyed or online payments.
- Make them show you the markup. Any processor who won't put their markup in writing, in one number, is telling you something.
The Zend Blue way
Zend Blue is built on exactly one idea: wholesale processing, one transparent markup, and the savings put back to work. You see interchange at cost, our markup in a single line, and we turn what you stop overpaying into the automation platform that runs your invoicing, follow-up and dispatch — included, not extra.
Want your real number? Send us a recent statement or use the 90-second calculator at zend.blue — we'll show you your effective rate and exactly where every basis point goes, before you ever apply.