Surcharge

Also called credit card surcharge, checkout fee, credit surcharge

An extra fee added to a credit card sale to offset processing cost. Credit only, never debit, and heavily rule-bound.

What it is

A surcharge is an additional amount added at checkout when a customer pays with a credit card. It is one of four cost-offset models and the most rule-constrained. The core rules. Credit only - surcharging debit or prepaid cards is prohibited under Durbin and network rules, regardless of whether the terminal processed it as credit. Written notice to your acquirer at least 30 days in advance, with Visa also requiring notice to Visa. Cap at the lesser of your merchant discount rate for that card or 3% for Visa, 4% for Mastercard; Amex and Discover cannot be surcharged higher than your Visa/Mastercard rate. Signage at point of entry and point of sale. A separate line item on the receipt. Refunds must return the surcharge, proportionally on partials. The 2026 settlement, if finally approved, changes one thing worth knowing: surcharging becomes permitted at brand level OR product level - not both - capped at 3% or actual cost of acceptance, whichever is lower, and the old effective 1% ceiling for merchants who also accept Amex is removed. Florida status: Fla. Stat. 501.0117 still bans surcharging on its face, but the Eleventh Circuit held that ban unconstitutional in Dana's Railroad Supply v. Attorney General (2015), and the Florida Attorney General's consumer page states that the law was held unconstitutional and merchants may surcharge if disclosed before purchase. The correct sentence is not 'surcharging is legal in Florida' - it is 'the statute remains on the books and is unenforceable under First Amendment case law, and Florida enforces disclosure through FDUTPA.'

Why it matters to your business

As an illustration, on $50,000 a month of credit volume, a compliant 3% surcharge recovers roughly $1,500 a month - which for a bar or QSR on thin margins can be the difference between viable and not. That's why it's worth doing correctly. Done incorrectly, the downside is asymmetric. A flat 3% on cards where your cost is 2.4%, no BIN-level debit detection, and missing entry signage is a program that fails an audit - and Visa's fine schedule reaches $100,000 at ninety days. There is no version of this where 'the rep set it up for me' is a defense.

Where it gets contested

Surcharging is the biggest margin lever in the channel and the biggest compliance liability, and the industry sells it far more aggressively than it supports it. Surcharge-based portfolios reportedly see about 35% higher residual margins than traditional interchange-plus. That is why your phone rings. The most common non-compliant practice sold every day: a flat 3% or 3.5% on every credit card. The cap is the lesser of your cost or 3%, so any card product where your MDR is below the surcharge rate is being overcollected. Second most common: surcharging debit because the terminal ran it as credit. Authorization method does not change card type; compliant programs require real-time BIN-level detection tested against actual signature debit, PIN debit and prepaid cards. Reported first-violation network fines for surcharging debit run around $5,000, with repeat exposure including MATCH listing. Enforcement is not theoretical. Visa's published non-compliance schedule escalates from $1,000 plus a remediation plan, to $50,000 at 30 days, $100,000 at 90 days, $150,000 at 150 days, and $25,000 per month beyond 180 days. Priority Payment Systems circulated an ISO memo warning of increased Visa enforcement with exposure of $50,000 to $1,000,000. And surcharging is prohibited outright in Connecticut, Massachusetts, Maine and Puerto Rico, and effectively barred as a separate line item in California under SB 478. If you take phone or web orders across state lines, that matters.

How to check it yourself

Verify five things. Is your acquirer notice on file with an acknowledgment, dated at least 30 days before you started? Does the terminal detect debit at BIN level - test with a real signature debit card and a prepaid card? Is your surcharge capped at the lesser of your documented MDR for that card product and 3%? Is signage at both the entrance and the point of sale? Do refunds return the surcharge, including on partials?

Receipts

Claims above that are checkable, with where to check them. Published so you do not have to take anyone's word for it.

Visa's US surcharge cap is the lesser of the merchant discount rate or 3% effective April 15, 2023; Mastercard remains 4%; non-compliance escalates from $1,000 to $50,000 at 30 days, $100,000 at 90 days, $150,000 at 150 days and $25,000/month after 180 days
afslaw.com ↗
Florida's surcharge ban was held unconstitutional in Dana's Railroad Supply v. Attorney General, 807 F.3d 1235 (11th Cir. 2015)
law.justia.com ↗
The Florida Attorney General states the surcharge law was held unconstitutional and merchants may surcharge if disclosed before purchase, with undisclosed fees potentially violating FDUTPA
myfloridalegal.com ↗
Compliant programs require real-time BIN-level card type detection and cap logic set to the lowest of documented MDR, network cap and state law
intellipay.com ↗
Visa increased enforcement on non-compliant surcharge programs with exposure of $50,000 to $1,000,000
paymentsdive.com ↗