Who Gets to Set the Price of Paying by Card?

Key takeaways

• Interchange is one component of the total fees merchants pay to accept cards.
• Interchange generally goes to the card issuer, while other charges cover the network and payment processing.
• Merchant antitrust claims challenge how network pricing and acceptance rules affect competition.
• Lower merchant fees could affect both retail prices and card rewards, making the consumer payoff uncertain.

Your card rewards look different from the other side of the checkout: you see cash back, while the store sees a deduction from its sale. Merchant lawsuits involving Visa and Mastercard put a bigger question behind that everyday transaction: who gets to set the price of accepting your card?

Where the fee actually goes

Suppose you spend $100 on a credit card. How much does the merchant keep?

There is no universal answer. It depends on the merchant’s contract and the transaction. Several businesses participate in a typical US credit card payment, and they perform different jobs.

The card issuer provides your card and extends credit. The merchant’s financial institution and payment processor help handle the transaction. Visa or Mastercard operates the network connecting the participants and sets its transaction rules.

The interchange fee generally goes to the card issuer. The network sets the default interchange rate structure, but that does not mean it pockets all the money.

The merchant’s total bill also includes network fees and processing charges. Describing the whole deduction as “Visa’s cut” obscures both who gets paid and who controls the price.

A useful service still needs competition

Card payments do real work. Transactions need authorization, fraud detection, and reliable transmission of payment information. Credit card issuers also bear the risk that customers will not repay what they owe.

Merchants benefit, too. They handle less cash and can accept the cards their customers already carry. Those services have value.

The harder question is whether competition puts enough pressure on the price.

In merchant antitrust litigation involving Visa and Mastercard, merchants have challenged the way interchange rates are set and the rules governing card acceptance. Their argument is that these arrangements restrict price competition and leave merchants too little room to negotiate.

Those are contested allegations. A merchant’s claim that a rule limits competition is distinct from a court finding that it violates antitrust law.

Understanding the dispute requires looking at both the service being delivered and the bargaining power of the businesses paying for it.

Switching is harder when your customers choose the network

A merchant facing an expensive supplier would normally look for a cheaper one. Payments complicate that calculation because customers arrive with preferences of their own.

A store can refuse a payment method. It may also lose the customer who wanted to use it.

That is the force of network effects. A card becomes more useful as more stores accept it. As more consumers carry it, stores have a stronger reason to participate.

The same mechanism that makes payments convenient can make entry difficult for a smaller rival. Building capable payment technology gets you only partway there. You still need consumers and merchants willing to use it together.

This makes merchant choice central to the competition question. Can a store steer customers toward a cheaper payment method? Can it reflect payment costs through discounts or surcharges?

The available options depend on local law and network rules. A rate sheet alone cannot tell you how much negotiating room a merchant actually has.

Cheaper processing does not guarantee a cheaper shopping basket

Lower payment costs give merchants room to lower prices. Whether they do so depends on competition and business decisions. A fee reduction does not automatically become an equal discount at checkout.

Card issuers could respond to changes in their revenue by adjusting points, cash back, or annual fees.

For consumers, the result therefore has two sides to calculate: any savings on purchases and any change in the value or cost of their cards. Different spending habits and card choices could produce different outcomes.

That is why a lawsuit or settlement deserves scrutiny beyond the headline fee reduction. Merchant choice matters because it can shape whether payment providers face continuing pressure to offer better terms.

Card payments deliver a service worth paying for. The question is how that price gets set—and how much say the merchant gets when the bill arrives.