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A credit-card surcharge is an extra amount added to the price paid by a customer who uses a credit card instead of cash, check, or a similar payment method. A merchant may add one only when the law in the merchant’s location and sales channel allows it and the applicable card network, acquirer, and disclosure rules are satisfied. There is no nationwide permission that overrides state restrictions.
The practical answer is therefore a checklist, not a blanket yes or no: identify the jurisdiction, card type, network, cost-based cap, advance notices, point-of-sale disclosures, and the total-price rule that applies to the transaction.
What a credit-card surcharge is
The Truth in Lending Act defines a surcharge as a way of increasing the regular price charged to a cardholder when that increase is not imposed on customers paying by cash, check, or a similar method. In everyday terms, the customer sees a base price plus an added amount for paying by credit card.
A cash discount uses the opposite presentation: the merchant displays a regular price and reduces it for customers who use cash or another specified method. Changing the label does not necessarily change the legal or network analysis. A fee called a “convenience fee,” “service fee,” or “processing fee” can still be treated as a surcharge when it is imposed because the customer paid by card.
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Surcharge versus cash discount
| Pricing method | How the customer sees it | Key question |
|---|---|---|
| Surcharge | Regular price plus an added card fee | Is the added amount permitted by law and network rules? |
| Cash discount | Regular price less a discount for cash or another method | Are the discount terms clearly and consistently disclosed? |
The label is not a safe harbor. Visa’s U.S. guidance warns that a fee connected to card payment may be treated as a surcharge under its rules, depending on how the program works.
Can a merchant charge one? Use these checks in order
Before enabling a surcharge, a merchant should complete every check below. Failure at any one stage can make the fee unlawful, misleading, or noncompliant with a card-network agreement.
1. Check the outlet’s state and local law
State restrictions, exceptions, and court decisions can determine whether a surcharge is allowed at all. Visa directs a business with multiple locations to follow the law governing each outlet. Mastercard likewise states that its rules do not replace state or federal law, including laws restricting surcharges or prohibiting deceptive disclosures.
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The relevant location is usually the outlet or sales channel where the transaction occurs. An in-person store, an online checkout, a telephone order, and a government payment portal may be treated differently. Identify the merchant entity, outlet, customer type, and payment channel before relying on a rule.
2. Check the card type
Network permission is commonly limited to credit transactions. Visa’s U.S. Merchant Surcharge Q&A, dated February 15, 2024, says merchants may not surcharge Visa debit or Visa prepaid cards. A debit card remains a debit transaction even when the customer selects “credit” at the terminal.
Do not configure a terminal to add the fee merely because a cardholder chose a “credit” button. The authorization type and underlying card product control the Visa restriction.
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3. Check every card network you accept
Visa and Mastercard do not use identical caps or procedures. A merchant that accepts both networks must configure the program to meet each network’s requirements. Mastercard also notes that accepting competing networks can create additional conditions when surcharging Mastercard cards.
4. Calculate the strictest applicable cap
The allowable amount can be limited by the merchant’s actual acceptance cost, the network ceiling, and a stricter state or local limit. A merchant cannot assume that a network’s headline maximum is automatically available.
5. Complete notices and customer disclosures
Network rules require advance notification and visible disclosures. Federal consumer-protection rules require the fee’s nature, purpose, and amount to be disclosed before payment and prohibit misrepresenting what the charge is for.
Visa surcharge rules in the United States
Visa’s U.S. merchant guidance limits surcharging to credit-card purchases and expressly bars surcharges on Visa debit and prepaid transactions. Its quoted rule is: “The ability to surcharge only applies to purchases made with a credit card and, even then, only under certain conditions. U.S. merchants cannot surcharge purchases made using a Visa debit card or prepaid card.”
Visa’s cap
Visa says the surcharge may not exceed the lower of:
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- 3 percent.
For example, if the applicable merchant discount rate is 2.4 percent, a 3 percent fee would exceed the cost-based limit and would not be permitted under that Visa rule. The calculation must use the applicable rate and transaction setup, not a convenient round number.
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Visa notices and receipts
Visa requires notice at the point of entry and at the point of sale or transaction. The surcharge must appear as a separate entry on the customer’s receipt rather than being hidden inside the merchandise price.
Mastercard surcharge rules
Mastercard requires a merchant to review the operative rule and complete its notification process before surcharging Mastercard credit cards. The merchant must notify both Mastercard and its acquirer at least 30 days before implementing the surcharge.
Mastercard’s cap structure
Mastercard allows either a brand-level surcharge applied generally to Mastercard credit cards or a product-level surcharge for a particular Mastercard credit product. Those approaches have different cost-based calculations. Mastercard’s merchant guidance states a 4 percent maximum surcharge cap, but the permissible amount may be lower because the surcharge is also limited by the merchant’s acceptance cost.
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Mastercard disclosures
The surcharge amount must be clearly disclosed at the point of interaction and shown as a dollar amount on the transaction receipt. Mastercard’s network procedures do not excuse compliance with state or federal law.
Visa and Mastercard: the operational differences
| Requirement | Visa (U.S. guidance) | Mastercard (merchant guidance) |
|---|---|---|
| Eligible transactions | Credit only; no Visa debit or prepaid surcharge | Mastercard credit cards, subject to the operative rule |
| Maximum stated by network | Lower of applicable merchant discount rate or 3% | 4% maximum, but acceptance-cost limits can require less |
| Advance notice | Network and acquirer procedures apply | At least 30 days to Mastercard and the acquirer |
| Customer notice | Point of entry and point of sale or transaction | Clear point-of-interaction disclosure |
| Receipt treatment | Separate surcharge entry | Dollar amount shown on receipt |
| State-law override | Outlet must follow the law where it is located | Rules do not displace state or federal obligations |
These are network-specific requirements, not one universal 3 percent or 4 percent rule. If a merchant accepts other networks, those networks can impose their own conditions as well.
State restrictions can prohibit the fee entirely
Official state materials illustrate why a national “legal in most states” summary is unreliable. The examples below are not a complete state-by-state survey.
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| Jurisdiction | Official position described in the cited material | Practical result |
|---|---|---|
| Maine | Title 9-A, §8-509 bars a seller in a sales transaction from imposing a surcharge on a credit or debit cardholder instead of cash, check, or similar payment. The statute separately addresses specified governmental entities. | A typical private seller cannot rely on network permission alone. |
| Florida | The 2026 statute, §501.0117, says a seller or lessor accepting credit cards may not surcharge a buyer or lessee for choosing credit instead of cash, check, or similar means, while listing exceptions for specified tariff-related charges. | Check the current statutory text and any applicable exception before adding a fee. |
| Connecticut | The Department of Consumer Protection says businesses may not add a surcharge for choosing one payment type over another, usually credit instead of cash. It notes examples of public payments that may carry a separate fee. | A private business generally cannot use a card-choice surcharge as a standard checkout fee. |
Statutes, regulations, agency guidance, litigation, and injunctions can change the result. A merchant should verify the current authority for the exact outlet and transaction instead of relying on an old internet list.
How the FTC treats total prices and payment fees
The Federal Trade Commission’s May 2025 FAQ says businesses may charge or pass through credit-card or other payment-processing fees “if otherwise permitted by law.” The federal total-price analysis then depends on whether the customer has a viable fee-free way to complete the same transaction.
When the fee is mandatory
If the business requires payment by credit card, the fee is mandatory and must be included in the advertised total price. The FTC gives an online ticket seller as an example: adding a 3 percent fee while offering no other viable online payment method makes the fee mandatory, so the advertised total must include it.
When the fee can be optional in the total-price display
If the same transaction can be completed at the same location or platform with a viable fee-free method, the card fee may be treated as optional for the initial total-price figure. The FTC’s contrasting example is an in-person comedy-club ticket purchase where customers can use an app, debit card, or cash without the fee.
Even in that situation, the business must clearly and conspicuously disclose the fee, explain its nature and purpose, show the amount before asking for payment, and include it in the final amount presented to the customer.
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How a merchant should set up a compliant program
- Map each sales channel. List every store, website, mobile checkout, phone-order process, and government or institutional payment channel. Record the governing state and locality for each.
- Inventory card products. Separate credit, debit, prepaid, commercial, and product-level transactions. Configure debit and prepaid transactions so the surcharge cannot be applied where the network forbids it.
- Identify the accepted networks. Obtain the current surcharge requirements for Visa, Mastercard, and any other accepted brand from the network and the acquiring bank.
- Calculate the rate. Determine the applicable merchant discount or acceptance cost, apply the network ceiling, and then apply any lower state or local limit. Keep the calculation records.
- Send required notices. For Mastercard, notify Mastercard and the acquirer at least 30 days before implementation. Complete any corresponding Visa or acquirer notification procedure before activation.
- Build the disclosures. Place the required notice at the point of entry and point of sale or transaction. On an online checkout, show the fee before payment and do not hide it in a late-stage screen.
- Configure receipts. Itemize the surcharge as a separate line and show its dollar amount. Test printed and electronic receipts.
- Test edge cases. Run credit, debit, prepaid, refunds, partial captures, split tenders, tips, recurring payments, and failed authorizations. Confirm that the fee is not duplicated or charged to an ineligible card.
- Review changes. Recheck state law, network rules, processor settings, and advertised prices whenever the merchant changes locations, payment channels, or pricing.
Common mistakes and how to correct them
Adding the fee to every card transaction
Applying a surcharge to debit or prepaid cards can violate network rules. Separate card-product routing and test the terminal’s behavior instead of relying on the customer’s button selection.
Using the network maximum as an automatic entitlement
A 3 percent Visa ceiling or Mastercard’s stated 4 percent maximum does not prove that the merchant may charge that amount. Acceptance-cost limits and state law can require a lower rate or a zero rate.
Hiding the fee until the payment button
Late disclosure can violate network and consumer-protection requirements. Show the fee, its amount, and its purpose before the customer commits to payment, and include it in the final amount.
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Changing the name does not remove a card-payment condition. Analyze how the fee is triggered and apply the surcharge rules when card use is the reason for the charge.
Copying an old state list
State statutes and enforcement positions change. Verify the current official authority for the specific outlet, channel, and transaction, and obtain legal advice for an uncertain or high-volume program.
What customers should look for
- A sign or online notice that identifies a card surcharge before payment.
- A separate line showing the fee and its dollar amount on the receipt.
- A fee-free payment option when the merchant describes the fee as optional for total-price purposes.
- No surcharge on a Visa debit or prepaid transaction under Visa’s U.S. rule.
- A final checkout total that includes the fee before the customer authorizes payment.
If a charge appears improper, keep the receipt and screenshot the checkout disclosure. Ask the merchant to explain the fee, then contact the card issuer or the appropriate state consumer-protection agency if the issue is not resolved. Whether a refund is available depends on the governing law, the card-network process, and the facts.
Multi-state merchants need location-specific controls
A business operating in several states cannot use one national switch and assume the same result everywhere. Maintain a rule matrix by outlet and channel, disable surcharging in prohibited jurisdictions, and ensure online orders are assigned to the legally relevant sales location. A processor or point-of-sale system can help calculate and itemize fees, but its configuration does not replace legal analysis or required network notices.
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Bottom line for merchants
A credit-card surcharge is lawful only when all applicable layers line up: state and local law, federal disclosure and total-price rules, the card network’s card-type and cap requirements, and the acquirer’s procedures. Visa’s U.S. rule excludes debit and prepaid cards and uses the lower of the merchant discount rate or 3 percent; Mastercard requires at least 30 days’ advance notice and states a 4 percent maximum subject to acceptance-cost limits. State law can still prohibit the fee altogether, as the Maine, Florida, and Connecticut examples demonstrate.
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