Shopping for processing

Who Has the Best Credit Card Processing Rates? They All Do.

Every processor pays the same rates for the same cards. The difference is what the salesperson adds on top, and nothing stops them from adding whatever they like. The best rate is the wrong thing to shop for. Here is what to ask instead.

Written by Robert Day, Founder and Managing Partner of weAudit.com, previously an executive at Fifth Third Processing Solutions, later Vantiv and Worldpay, now part of Global Payments, the world’s largest card processor. Published September 2026.

The same at every processor

Interchange, set by Visa, Mastercard and Discover for each card type
Network assessments and fees, set by the card networks
Interchange alone is 80 to 90 percent of what accepting cards really costs

Different on every deal

The markup the salesperson adds on top
The extra fees, and what they are called
How the account is set up, and whether anyone ever checks it

Why every processor has the same rates

So who has the best credit card processing rates? Every processor has the same ones, because a processor does not set the price of a card. When your customer pays with a Visa rewards card, the bank that issued it collects interchange at a rate Visa publishes, and that rate is the same whether the sale runs through the biggest processor in the country or a one-person reseller. Network assessments work the same way. Our page on credit card processing fees and rates explains the network side in detail.

That is why lists of the processors with the lowest rates miss the point. They compare published list prices for flat-rate plans, or quoted discount rates, and neither one is the cost. The cost is interchange, plus whatever gets added to it.

80 to 90%

of a typical merchant’s card acceptance cost is interchange, set by the card networks and identical at every processor. The fight is over the rest.

The salesperson can charge you anything they want

Credit card processing is a non-regulated industry. There is no rate filing, no required statement format and no rule about what a processor may call a fee. Processors do not publish their merchant account pricing; they let salespeople price each deal for whatever they can get.

So the same processor can give one business a clean, fully disclosed statement and give the business next door almost nothing disclosed at all. Two merchants on the same processor, the same card mix and the same volume can pay very different amounts. The name on the statement tells you who moves the money. It tells you nothing about what you pay.

It also explains why a quoted rate goes stale. Every merchant agreement we have audited lets the processor change its fees after you sign. The rate you negotiated is the rate on day one.

The bigger questions

If every processor has the same rates, the useful questions are not about rates at all. These four decide what you actually pay.

1. Are you set up correctly?

In our audits, over 90 percent of merchants are not. The wrong business category code, missing data on business card sales, or sales settling late can push every transaction into a more expensive interchange category, and none of it shows up as a fee.

2. Will they add fees?

Monthly fees, PCI fees, minimums, and charges with official-sounding names no card network has ever heard of. A low rate with a long fee list is not a low price.

3. Will they inflate fees?

Network fees are real, which makes them the easiest place to hide margin. A processor can bill interchange or assessments above the published rate and still call them pass-through.

4. Will they change them later?

The agreement almost certainly allows it. The question is whether anyone on your side will notice when the statement changes.

How you can have the lowest discount rate and the worst deal

Merchants compare two numbers: the discount rate and the per-transaction fee. So those are the two numbers processors compete on, and the real margin moves somewhere else. That is how a business ends up with the lowest discount rate anyone quoted it and one of the worst deals on the street, at the same time.

We wrote the full explanation, including the three places the money usually moves, in How Can I Have the Lowest Discount Rate and the Worst Deal? If you are comparing quotes right now, read it before you sign anything.

What actually makes processing cheap

A structure you can see. Interchange passed through at cost, with a small, fixed markup shown on its own line. Interchange-plus pricing does this when it is done honestly.
An account set up for how you really take payments. The right category code, the right data on business cards, and batches that settle every day.
No fees you cannot explain. Every line on the statement should be either a network cost or a charge you agreed to in writing.
Someone checking. Rates and fees change after signing. A deal is only as good as the last time someone looked at it.

Bundled flat-rate platforms look cheapest because they are simplest, and for most businesses they are not. We explain why on our page about credit card processing fees for small business. If you want a quick estimate of what your current setup costs, try the savings calculator.

Why we do not publish a best-processor list. weAudit takes no money from any processor, ISO or referral arrangement, and we do not recommend one processor over another. The same processor can write a good deal or a bad one. What we do publish is a scorecard of how each processor treats merchants, because that is something a name can tell you.

Common questions

Who has the best credit card processing rates?

In one sense, they all do. Every processor pays the same interchange for the same card, and interchange is 80 to 90 percent of the cost of accepting cards. What differs is the markup and the fees on top, and those are set by whoever sold you the account, not by the processor’s name.

What is the cheapest credit card processing?

The cheapest setup is a structure, not a brand: interchange passed through at cost, a small fixed markup you can see on the statement, an account set up correctly for how you take payments, and someone checking that the fees do not creep up. Bundled flat-rate pricing is rarely the cheapest option, because it charges every card the same price no matter what it costs.

What is a good credit card processing rate?

It depends on your card mix, which is why a single quoted rate tells you very little. In our audits, typical blended interchange runs around 2.25 percent. An effective rate far above that, once every fee is counted, is markup and fees rather than the cost of the cards.

Can a low discount rate still be a bad deal?

Yes, and it is common. Processors know merchants compare the discount rate, so that is the number they compete on, while the real margin moves into inflated network fees and charges that are not in the rate at all. See how that works in our article on having the lowest discount rate and the worst deal.

Why did my rate go up after I signed?

Because merchant agreements let the processor change its fees, and often its terms, after you sign. Increases usually arrive as one line in a statement message. A rate you checked once, at signing, may not be the rate you pay today.

How do I know if my processor is overcharging me?

Work out your effective rate, total fees divided by total card sales, over three months. Then list every fee that is not interchange and ask what each one is for. If you cannot tell which fees are network costs and which are the processor’s, a free audit will.

Send us a statement. We will show you what you are really paying.

Our first audit is free and takes about five minutes of your time. We separate the cost of the cards from everything added on top, and if there is nothing to find, you will know that too.

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About the figures: the share of cost that is interchange, typical blended interchange, and the share of merchants not set up correctly are weAudit’s own figures from its audits. Interchange and network assessment rates are published by the card networks. weAudit is processor-neutral and receives no revenue share, referral payment or other financial tie from any processor or ISO.