When you look at your merchant statement, you usually see one total number: what you paid to accept cards that month. But that total is made up of several pieces, and the biggest one is usually interchange, a fee structure set by Visa and Mastercard that they publish and update on a regular basis.¹² Your processor passes that cost along to you and adds its own markup on top. Knowing what is interchange and what is processor markup is the fastest way to understand what you are actually paying for.

What interchange actually is

Every time a customer pays with a card, money moves between the financial institution that handles the merchant side of the transaction and the one that issued the card. Interchange is the transfer fee used within that system.¹² Visa says interchange reimbursement fees are transfer fees between financial institutions, while Mastercard says interchange rates are generally paid by acquirers to issuers on purchase transactions.¹²

Here is the part merchants need to know: your processor does not invent interchange and usually does not control it. Visa and Mastercard publish the rate structures, and your processor layers its own pricing on top.¹² In practical terms, your total card acceptance cost usually breaks down into interchange, network fees, and processor markup.

Who sets it and how it works

Visa and Mastercard publish interchange rates and the qualification criteria tied to them.¹² Mastercard says it has no involvement in acquirer and merchant pricing policies or agreements, and that interchange is only one component of the merchant discount rate set by acquirers.² So when you negotiate with a processor, you are usually negotiating their pricing model and margin, not the base interchange schedule itself.

What changes your rate

There is no single interchange rate that applies to every business or every card.¹² The rate depends on things like the type of card being used, how the payment is accepted, the merchant category, transaction timing, and whether the transaction meets the criteria for a better rate.¹²

Card type

A basic regulated debit card does not cost the same as a rewards card, a business card, or a corporate purchasing card.¹ Visa’s April 2026 schedules separate consumer debit, consumer credit, business, corporate and purchasing, prepaid, and other categories because the economics are different for each one.¹

How you process it

Card-present transactions usually qualify differently than card-not-present transactions such as online, keyed, or recurring payments.¹ Visa’s current tables clearly separate many card-present and card-not-present categories, and Mastercard also lists transaction details and qualification rules as part of how rates are determined.¹²

Your industry

Industry matters more than many merchants realize. Visa publishes separate categories for areas like government, education, healthcare, insurance, charity, utilities, restaurants, travel, and more.¹ If your merchant category setup is wrong, you may be paying rates designed for a different type of business.

Data quality and timing

For commercial card optimization, merchants should stop thinking in vague old shorthand alone and focus on the current Visa qualification path that appears in the April 2026 schedule: Commercial Product 3.¹ Mastercard also says interchange qualification can depend on the submission of enhanced transaction data and the time between authorization and clearing.²

In plain terms, better transaction data and cleaner processing operations can help some transactions qualify for better categories, while weak data or slow settlement can push them into more expensive ones.² That means sloppiness in billing workflows, settlement, or commercial card handling can quietly increase cost over time.

Real examples from current rate tables

The clearest way to explain interchange is to use published examples instead of vague industry averages. These examples come directly from Visa’s effective April 18, 2026 U.S. interchange schedule.¹

Why your pricing model matters

Even when interchange is published and transparent at the network level, the way your processor packages pricing still determines how easy it is to understand your actual costs.² A flat-rate or tiered model can hide the difference between a low-cost debit transaction and an expensive rewards or commercial transaction.

Interchange-plus pricing does not change the underlying interchange schedule, but it usually makes the statement easier to audit because it separates the network-set cost from the provider’s markup. If your processor cannot or will not show the breakdown, you are left guessing.

How to lower your costs

Merchants cannot negotiate interchange directly with Visa or Mastercard, but they can lower total processing cost by improving qualification and controlling the markup layered on top.¹²

1. Check your merchant category code. If you are a government agency, utility, or another specialty merchant but are set up under the wrong category, you may be missing better published rates.¹
2. Process in-person transactions correctly. If a card-present transaction is being keyed when it should be dipped or tapped, you may be pushing yourself into a more expensive category.¹
3. Submit strong enhanced commercial data. For Visa, focus on whether your system supports the current commercial optimization path tied to Commercial Product 3 and related data requirements. For Mastercard, enhanced transaction data still matters for some qualification scenarios.¹²
4. Settle on time. Mastercard specifically lists the time between authorization and clearing as part of qualification.²
5. Review statements for downgrades or non-qualified patterns. If too many transactions are pricing as non-qualified, there is usually a reason worth investigating.¹
6. Use ACH where card is not required. ACH does not involve card interchange, so it can be a lower-cost option for recurring billing, large invoices, or certain utility and B2B payments.
7. Move to interchange-plus pricing if you are on flat or tiered pricing. It usually gives you a clearer view of what is fixed and what is negotiable.

When IntelliPay makes sense

IntelliPay is a fit for merchants that want transparent pricing, support with merchant category alignment, ACH options, and help understanding where processing costs are coming from. That matters most for organizations with more complex payment workflows, including government, utilities, healthcare, insurance, and B2B billing.

We are not claiming to “beat interchange.” That is not how card economics work. What we can do is show you what you are paying, help improve qualification where possible, and avoid hiding markup inside a bundled rate.

Common questions