Swipe fees are the processing charges a merchant pays every time a customer pays with a credit or debit card. Credit card swipe fees typically run between 1.5% and 3.3% of the transaction amount. Debit card fees at large banks are capped by federal law at roughly 21 to 24 cents per transaction. U.S. merchants paid a combined $236.4 billion in card-processing fees in 2024, a cost that filters into retail prices everyone pays.
What a Swipe Fee Is Actually Made Of
A card transaction generates a bundle of charges, not one flat fee. Three layers sit at the core.
The largest is the interchange fee, which goes to the bank that issued the customer’s card. Interchange accounts for the majority of the total. In 2023, interchange alone represented roughly $143 billion of the estimated $224 billion in total swipe fees that year.1Merchants Payments Coalition. Credit and Debit Card Swipe Fees Totaled $224 Billion in 2023 The rate on any given transaction depends on the card type, the risk profile, and the technology used to authorize the payment.
The assessment fee, sometimes called a network fee, goes to the card network itself: Visa, Mastercard, Discover, or American Express. Assessment fees are set by the networks and are not negotiable. They fund the infrastructure that lets a card issued by a small credit union in Maine work at a terminal in Tokyo.
The processor markup is what the merchant’s payment processor charges for its own services: terminal hardware, transaction reporting, customer support, and moving money into the merchant’s bank account each day. Unlike interchange and assessment fees, the markup is often negotiable, especially for businesses with high sales volume.
Secondary charges sit on top of those three. PCI compliance fees, which cover payment-industry security standards, typically run $50 to $150 per year or $15 to $25 per month. Statement fees, batch-processing fees, and account maintenance fees can add another $10 to $30 monthly depending on the processor and contract.
Who Actually Gets the Money
The issuing bank takes the biggest slice through interchange. That money reimburses the bank for the risk of extending credit on credit transactions, covering fraud losses, and funding rewards programs. When a card offers 2% cash back, the issuing bank is paying for it out of interchange revenue collected from merchants.
Visa and Mastercard collect the assessment fees. Despite the brand visibility, the networks don’t lend money or hold consumer accounts. They run the technology rails that connect thousands of financial institutions, authorize transactions in milliseconds, and develop the security protocols that protect card data.
The acquiring bank or third-party payment processor handles the merchant’s side. These companies deposit transaction proceeds into the business’s account, provide the hardware and software for accepting payments, and manage disputes when a customer contests a charge. Their revenue comes from the processor markup and the secondary fees above.
What Makes the Rate Go Up or Down
The biggest variable is the card the customer presents. A basic debit card tied to a checking account triggers a much lower interchange fee than a premium rewards credit card. Travel points and cash back are not free; the issuing bank funds them by charging higher interchange on premium products. A transaction on a high-end travel card can cost the merchant 2.5% or more, while a standard debit transaction costs a fraction of a percent.
Whether the card is physically present also matters. Chip insertions and tap-to-pay transactions are treated as lower risk and carry lower fees. Online purchases, phone orders, and other “card-not-present” transactions face higher interchange rates because they are more exposed to fraud.
Every merchant is assigned a Merchant Category Code that shapes the baseline rate. Grocery stores and gas stations often qualify for reduced interchange categories because they process high volumes of low-margin transactions. A luxury retailer or an online gambling platform sits at the opposite end of the risk spectrum and pays accordingly. Large chains can sometimes negotiate directly with processors for volume-based discounts that independent shops cannot access.
The Federal Cap on Debit Fees
The Durbin Amendment, enacted as part of the Dodd-Frank Act and codified at 15 U.S.C. ยง 1693o-2, gave the Federal Reserve authority to ensure debit interchange fees are “reasonable and proportional” to the cost of processing.2Office of the Law Revision Counsel. 15 US Code 1693o-2 – Reasonable Fees and Rules for Payment Card Transactions The Fed implemented that mandate through Regulation II, which caps interchange on covered debit transactions at 21 cents plus 0.05% of the transaction value. An issuer that meets certain fraud-prevention standards can add a 1-cent fraud-prevention adjustment on top.3eCFR. 12 CFR Part 235 – Debit Card Interchange Fees and Routing On a $50 debit purchase, the maximum regulated interchange fee comes to roughly 24.5 cents.
The cap only reaches banks and credit unions with more than $10 billion in assets.2Office of the Law Revision Counsel. 15 US Code 1693o-2 – Reasonable Fees and Rules for Payment Card Transactions Smaller institutions are exempt and set their own debit interchange rates. The exemption was designed to shield community banks from the revenue loss that large issuers absorbed when the rule took effect in October 2011.
Credit card interchange is a different story. No federal law caps what Visa, Mastercard, or issuing banks can charge merchants on a credit transaction. That gap is why many businesses prefer debit over credit and it drives most of the legislative activity below.
The Federal Reserve proposed lowering the Regulation II cap in late 2023, dropping the fixed portion from 21 cents to 14.4 cents and the ad valorem portion from 0.05% to 0.04%, while raising the fraud-prevention adjustment to 1.3 cents.4Federal Register. Debit Card Interchange Fees and Routing As of early 2026, the Fed has not finalized the rule and has said it will wait for “legal certainty” before acting. The 21-cent cap remains in effect.
Surcharges and Cash Discounts
Merchants who want to push some of the fee back onto customers at the register have two legal tools, and the rules differ sharply. A cash discount offers customers a lower price for paying with cash. Federal law protects this practice as long as the discount is available to everyone and clearly disclosed. A surcharge, by contrast, adds a fee on top of the listed price when the customer pays by credit card. Federal law prohibits surcharges on debit transactions but does not ban credit card surcharges nationwide.
State law fills in the rest. Roughly ten states and Puerto Rico prohibit credit card surcharges entirely.5National Conference of State Legislatures. Credit or Debit Card Surcharges Statutes A merchant in one of those states can still offer a cash discount but cannot add a surcharge to a credit card receipt. Some of these laws have faced constitutional challenges, so the map continues to shift.
Even where surcharging is legal, the card networks impose their own conditions. Visa caps a surcharge at 3% of the transaction. A merchant that plans to surcharge must notify both the card network and the acquiring bank at least 30 days in advance and must clearly disclose the surcharge at the point of sale and on the receipt.6Mastercard. What Merchant Surcharge Rules Mean to You Failing to follow those rules can result in fines from the network or loss of the ability to accept cards.
What’s Changing
The Credit Card Competition Act was reintroduced in January 2026 with bipartisan support in both chambers.7Congressman Lance Gooden. Gooden Reintroduces Trump-Endorsed Credit Card Competition Act The bill would require banks with over $100 billion in assets to enable at least two competing networks on every credit card, breaking the current arrangement in which Visa or Mastercard is effectively the only routing option. The theory: if merchants can route transactions over a cheaper network, competition pushes interchange down. The bill has endorsements from major retail trade groups and a presidential endorsement, but no committee vote yet.8Congress.gov. HR 7035 – Credit Card Competition Act of 2026
Litigation is moving faster than legislation. An earlier $5.5 billion settlement covering merchants who accepted Visa and Mastercard between 2004 and 2019 received final court approval, and initial payments to approved claimants began going out in late 2025.9Payment Card Settlement. Payment Card Settlement Official Court-Authorized Website A separate, broader revised settlement announced in November 2025 would require Visa and Mastercard to lower swipe fees by 0.1 percentage point for five years and cap standard consumer credit card interchange rates for eight years. If finalized, that cap would represent a reduction of more than 25% from prevailing rates. The revised settlement still needs court approval, and merchant groups are divided on whether the relief goes far enough.