Credit cards charge retailers roughly 1.5% to 3.5% of each transaction, so a $50 sale costs the merchant about $0.75 to $1.75 before the money lands in the business account. Where a specific sale falls in that range depends on the card brand, whether the card is physically present, the type of card the customer pulls out, and the pricing deal the merchant has with its payment processor. American Express is consistently the most expensive to accept, Visa and Discover tend to sit at the low end, and Mastercard runs slightly above Visa on average.
The Three Parts of Every Swipe Fee
Every card transaction produces three separate charges stacked on top of each other. Knowing which is which matters, because only one part is actually negotiable.
The largest is the interchange fee, paid to the bank that issued the customer’s card. It compensates the issuer for fronting the money, running the cardholder’s account, and absorbing default risk. Interchange is set by the card networks, not the individual banks, and it varies by card type, transaction method, and merchant category. A basic Visa consumer credit card swiped in a store might run around 1.65% plus a few cents, while a premium rewards card keyed into a website can exceed 2.5%.1Visa USA. Visa USA Interchange Reimbursement Fees Mastercard’s published schedule tops out at 3.15% plus $0.10 for non-qualified consumer credit transactions.2Mastercard. Mastercard 2024-2025 US Region Interchange Programs and Rates
The second part is the assessment fee, paid to the card network itself. Visa and Mastercard each take roughly 0.10% to 0.15% of every transaction to run their global networks. Every merchant pays them. There’s no negotiating this piece.
The third part is the processor markup, and this is the only piece a retailer can shop around. Your processor, the company that actually moves the transaction from your terminal to your bank, sets its own margin on top of interchange and assessments. Markups vary widely by processor, pricing model, and merchant size. A small coffee shop and a national grocery chain pay the same interchange to the same issuing bank but will see very different markups.
Typical Cost by Card Network
Each network sets its own interchange schedule, and one of them operates on a different model entirely.
- Visa. Average total cost for in-person sales runs about 1.75% to 1.85% plus a small per-transaction fee, climbing to roughly 2.25% or more online. Visa has the lowest average interchange of the major networks.
- Mastercard. Slightly higher than Visa on average. In-person totals sit near 1.90% to 2.00%, and online transactions run around 2.30%. Its published schedule reaches 3.15% plus $0.10 at the top end.2Mastercard. Mastercard 2024-2025 US Region Interchange Programs and Rates
- American Express. The most expensive network for retailers, with rates from about 1.43% to 3.30% plus per-transaction fees depending on card tier and how the sale is taken. Amex historically acted as both the network and the issuing bank, so it charges a single “discount rate” instead of splitting the cost the way Visa and Mastercard do. Many small businesses still refuse Amex for this reason.
- Discover. Generally competitive with Visa and Mastercard. Standard consumer credit interchange runs about 1.56% plus $0.10 for in-person sales, rising for rewards and premium cards.
These figures are the total merchant cost, including interchange, assessments, and a typical processor markup. Your actual statement will move around based on pricing model, processor, and the mix of cards your customers happen to carry.
What Pushes a Retailer’s Rate Up or Down
Whether the Card Is Physically Present
After card brand, this is the single biggest variable. Swiping, inserting a chip, or tapping a card in person is treated as lower fraud risk and gets lower interchange. Keying a card number for a phone order or accepting payment through a website is a card-not-present transaction and carries a real premium. An in-person Visa transaction might cost 1.80% total; the same card entered online can run 2.25% or higher.1Visa USA. Visa USA Interchange Reimbursement Fees For a purely online business, that premium is baked into every sale.
Which Card the Customer Uses
Not every card costs the retailer the same. A basic no-rewards consumer card carries the lowest interchange. A premium travel rewards card or a corporate purchasing card carries much higher interchange, because the issuing bank funds those perks out of the fee. The merchant doesn’t get to choose. During the holidays, when customers lean on their premium rewards cards, many retailers see their effective rate creep up without changing anything about how they operate.
The Merchant Category
Card networks assign every business a category code, and some categories get preferential interchange. Grocery stores and gas stations pay lower rates because of high volume and thin margins. Businesses classified as high risk face the opposite. Industries like online gambling, adult entertainment, and certain travel services pay higher interchange plus additional registration and monitoring fees. One major network charges gambling merchants a $1,400 registration fee and $120 per month on top of processing costs.
Small-Ticket Sales
The flat per-transaction fee attached to every percentage-based charge is brutal on small sales. Pay 1.90% plus $0.10 on a $3 coffee and the percentage part is about $0.06, but the flat $0.10 nearly doubles the total. Your effective rate is over 5%. Visa and Mastercard both run small-ticket interchange programs with lower flat fees and minimums as low as $0.04, but your processor has to enroll you and the sale has to qualify.1Visa USA. Visa USA Interchange Reimbursement Fees If most of your sales are under $10, ask about it. Many eligible merchants don’t know these programs exist.
How Processors Package the Fees
The pricing model your processor uses decides how predictable your costs are and how easy it is to tell whether you’re being overcharged.
Flat-Rate Pricing
One percentage and one flat fee on every transaction regardless of card type. Square charges 2.6% plus $0.15 for every in-person swipe and 3.3% plus $0.30 for online sales.3Square. Square Processing Fees, Plans, and Software Pricing Simple and predictable. The trade-off is that you overpay on basic cards to subsidize the times a customer uses a premium card. Fine for low volume; expensive at scale.
Interchange-Plus Pricing
This model separates interchange and assessments from the processor’s cut and shows each line. A typical quote reads “interchange plus 0.20% and $0.10,” meaning the processor adds a fixed margin on top of whatever the network charges. Total cost fluctuates by transaction because interchange varies, but the processor’s take is always visible. For businesses processing more than a few thousand dollars a month, this is usually the cheapest option, and it’s the easiest to audit.
Tiered Pricing
Tiered pricing sorts every transaction into qualified, mid-qualified, or non-qualified. The qualified rate is the lowest and applies to basic cards swiped in person. Mid-qualified catches transactions that miss one criterion, like a keyed-in card. Non-qualified is the catch-all: rewards cards, corporate cards, anything card-not-present. The tier rates are set by the processor, so the margin is hidden inside the tier assignment. This is where merchants most often get burned. A processor can quietly reclassify transactions into higher tiers, and because the criteria aren’t always transparent, the merchant may not notice until the statement lands.
Subscription Pricing
A newer model: a flat monthly membership fee, interchange passed through at cost with zero percentage markup, and a small per-transaction fee. One well-known subscription processor charges $99 per month and $0.08 per in-person transaction on top of interchange. At high volume the math beats flat-rate and tiered pricing handily. At low volume the fixed fee costs more than an interchange-plus markup would. Most subscription models don’t start saving money until you’re doing at least $5,000 to $10,000 a month.
Fees That Don’t Show Up in the Swipe Rate
Per-transaction cost is only part of what a retailer actually pays. Several recurring and event-driven fees add up.
- Chargeback fees. When a customer disputes a charge, the processor hits you with $20 to $100 per dispute on top of the refunded transaction. Lose enough and your account can be reclassified as high risk, which raises your baseline rates.
- PCI compliance fees. Card networks require every merchant to meet PCI DSS data security standards. Most processors charge a monthly compliance fee and a separate non-compliance penalty, often $20 to $100 per month, if you haven’t finished the annual self-assessment. For larger businesses that suffer a breach while non-compliant, network fines can reach tens of thousands per month.
- Monthly and statement fees. Many processors charge a $10 to $30 monthly account fee regardless of volume. Some add a monthly minimum: if your processing fees don’t hit a floor, you pay the difference.
- Early termination fees. Long-term contracts commonly carry a cancellation penalty, either a flat $250 to $500 or a “liquidated damages” figure calculated from your average monthly fees times the months remaining. A merchant with 18 months left and $200 in average monthly fees could owe $3,600 to walk away.
- Batch fees. Some processors charge $0.10 to $0.30 each time you settle your daily transactions. Minor for most retailers, meaningful for anyone settling multiple times a day.
When comparing processors, ask for a full fee schedule, not just the swipe rate. The lowest per-transaction rate can come with monthly minimums, PCI fees, and chargeback penalties that push the total above a competitor with a slightly higher swipe rate.
Can You Pass the Cost to Customers?
Some retailers add a surcharge to credit card sales. The practice is legal in most states, but the card networks impose strict rules. Visa caps surcharges at 3% of the transaction or the merchant’s actual cost of acceptance, whichever is lower. Mastercard caps its at 4%.4Visa. Merchant Surcharging Considerations and Requirements Surcharges are never allowed on debit or prepaid cards, even when the customer runs them as credit.
Before surcharging, you must notify your processor at least 30 days in advance. Signage at the store entrance and at the point of sale has to inform customers before they commit to paying, and the surcharge has to appear as a separate line on the receipt.4Visa. Merchant Surcharging Considerations and Requirements A few states still restrict or prohibit credit card surcharges, including Connecticut, Massachusetts, and Maine. Check your state’s consumer protection rules before starting a surcharge program.
A cash discount avoids the surcharging rules entirely. The posted price includes the cost of card acceptance, and customers who pay cash get a discount off that price. Because it’s a reduction rather than an added fee, it doesn’t trigger the same network restrictions. That’s why some gas stations post a cash price several cents lower per gallon.