The merchant pays credit card transaction fees. Every time a card is swiped, tapped, or keyed in, the business accepting payment hands over a percentage of the sale, typically 1.5% to 3.5%, to cover processing. You, the cardholder, pay nothing extra by default. The exception is when a business adds a surcharge or convenience fee at checkout, and even then federal law, state law, and card network rules limit when and how much they can charge.
How the Fee Works and Who Gets Paid
When a business signs up to accept credit cards, its agreement with a payment processor spells out exactly what each transaction will cost. The processor subtracts those fees before depositing funds in the merchant’s account, usually one to three business days after the sale. On a $100 purchase with a 2.5% total fee, the merchant actually receives about $97.50.
That fee gets split three ways. The biggest piece is the interchange fee, which goes to the bank that issued your card. A basic consumer credit card might carry an interchange rate around 1.6% plus $0.10 per transaction, while a premium rewards card can run above 2.2% plus $0.10.1Federal Reserve Board. Regulation II (Debit Card Interchange Fees and Routing) The higher rate on rewards cards is what funds the cashback and points you earn, which means merchants indirectly subsidize those perks every time a premium card is used.
A smaller slice called the assessment fee goes to the card network (Visa, Mastercard) for maintaining the infrastructure that routes payment data between banks. The remainder is the processor’s markup for technology, customer service, and fraud detection. Only that last piece is really negotiable, since interchange and assessment rates are set by the issuing banks and networks.
When a Merchant Can Add a Surcharge to Your Bill
A surcharge is a line item added to your receipt because you chose to pay by credit card. Surcharges became legal for most U.S. merchants after a class-action settlement with Visa and Mastercard took effect on January 27, 2013.2Visa. Surcharging Credit Cards – Q&A for Merchants Before that, card network rules flat-out banned the practice.
The surcharge cannot exceed the merchant’s actual cost of processing, and each network sets its own cap. Visa limits surcharges to 3% of the transaction amount or the merchant’s actual processing cost, whichever is lower.3Visa. U.S. Merchant Surcharge Q and A Mastercard caps surcharges at 4%.4Mastercard. What Merchant Surcharge Rules Mean to You A business that accepts both and surcharges uniformly effectively has to stay at or below 3%.
Disclosure matters too. Both networks require 30 days’ advance notice to them and the acquiring bank before a merchant starts surcharging. At checkout, the surcharge must be clearly shown before you complete the purchase, and it must appear as its own line on your receipt.4Mastercard. What Merchant Surcharge Rules Mean to You A business that quietly folds a surcharge into the total without telling you is violating network rules and potentially state or federal law.
Debit and Prepaid Cards Cannot Be Surcharged
Both Visa and Mastercard prohibit surcharges on debit and prepaid card transactions, even if you tap “credit” on the terminal. That choice only controls whether the payment is processed as signature-based or PIN-based; the card itself is still a debit card, and the ban still applies.3Visa. U.S. Merchant Surcharge Q and A A surcharge added to a debit purchase is a rule violation.
Convenience Fees Are a Different Thing
A convenience fee is tied to the payment channel, not the card type. A utility company that normally takes payment in person or by mail might charge a flat fee if you pay online or by phone instead. That fee covers the cost of offering an alternative channel, which is why it can apply even when a surcharge would not.
The FTC requires that any such fee be disclosed before you finalize payment and included in the final amount you see. If a business only accepts credit cards and gives you no other way to pay, processing costs have to be built into the posted price rather than added at the end.5Federal Trade Commission. The Rule on Unfair or Deceptive Fees – Frequently Asked Questions Vague labels like “service fee” or “processing fee” without further explanation can also run afoul of the rule.
Cash Discounts Instead of Surcharges
Some merchants go the other direction and offer a lower price for paying in cash. The posted price is the credit card price, and cash gets you a reduction. Federal law protects a merchant’s right to offer this. Card networks cannot stop a business from giving you a lower price for using cash, a check, or a debit card. The discount has to be available to all buyers and clearly displayed, and the “regular price” cannot be inflated so the discount just brings it back to normal.6Office of the Law Revision Counsel. 15 U.S. Code 1693o-2 – Reasonable Fees and Rules for Payment Card Transactions The legal distinction is that a surcharge raises the price above the listed amount while a cash discount cuts it below. In states that ban surcharges outright, a properly structured cash discount program is still legal.
State Laws Can Restrict or Ban Surcharges
The 2013 settlement cleared surcharges nationally, but states can still restrict them, and the law continues to shift as courts weigh in on older statutes.
Connecticut and Massachusetts maintain enforced bans on credit card surcharges.7Acquisition.GOV. 6-6. Surcharges Several other states once banned surcharges but have had their statutes struck down or narrowed by federal courts on First Amendment grounds, with judges finding the bans regulated how merchants communicate prices rather than serving a legitimate consumer protection purpose. A separate group of states allows surcharging but caps it below the network maximums, with some holding merchants to 2% or even 1%, and some requiring enhanced disclosure such as showing the credit card price in dollars and cents. Because these laws change frequently, your state attorney general’s website is the right place to check the rule where you actually shop.
Minimum Purchase Amounts
Federal law lets merchants set a minimum purchase amount for credit card transactions, as long as that minimum does not exceed $10. Federal agencies and institutions of higher education can also set a maximum dollar amount for card acceptance, provided they do not discriminate between networks or issuers.8Office of the Law Revision Counsel. 15 USC 1693o-2 – Reasonable Fees and Rules for Payment Card Transactions A coffee shop with a $5 card minimum is within its rights. A $15 minimum is not.
What to Do If You’re Improperly Surcharged
If a merchant surcharges your debit card, charges above the applicable cap, or never disclosed the fee before you paid, start with the merchant. Many surcharge problems come from misconfigured point-of-sale systems rather than deliberate overcharges, and a quick conversation often fixes it.
If that doesn’t work, report the violation to the card network. Visa and Mastercard both actively enforce their surcharge rules and can fine merchants who break them. You can also file a complaint with the Consumer Financial Protection Bureau online or by phone at (855) 411-2372.9Consumer Financial Protection Bureau. Submit a Complaint In a state that bans surcharges, your state attorney general’s office can enforce under state consumer protection law.
Refunds When You Return a Surcharged Purchase
When you return something you paid a surcharge on, the merchant should refund the surcharge along with the price. Federal law does not specifically require surcharge refunds, but it does require that merchants who give cash refunds to cash customers also give refunds (either as a credit to your card or in cash) to customers who paid by credit card.10Consumer Financial Protection Bureau. 1026.12 Special Credit Card Provisions Once the merchant processes the return, your card issuer must credit your account within three business days of receiving the refund notice. If the surcharge isn’t reversed with your refund, raise it with the merchant first, and dispute the charge through your card issuer if that goes nowhere.