Yes, in most states a medical office can charge a credit card fee, but only within limits. State law has to permit surcharging, the fee has to follow Visa and Mastercard rules on disclosure and amount, and it can only be applied to credit cards — not debit, HSA, or FSA cards. When any of those conditions isn’t met, the fee is improper and you have options to push back.
Where Surcharges Are Legal
Most states now allow credit card surcharges, but a few still ban them outright. Connecticut and Massachusetts are the clearest examples. Maine and Puerto Rico also prohibit the practice. Colorado permits surcharges but caps them at 2% of the transaction or the office’s actual processing cost, whichever is lower, and adds its own disclosure rules.
The legal picture shifted after the 2017 Supreme Court decision in Expressions Hair Design v. Schneiderman, which treated New York’s surcharge ban as a speech regulation subject to First Amendment review and sent the case back to the lower court. Several states loosened their prohibitions in the years that followed.1Justia U.S. Supreme Court Center. Expressions Hair Design v Schneiderman, 581 US ___ (2017) Because legislatures revisit these rules periodically, what’s legal in a state can change from one year to the next. If a fee looks wrong, start by checking whether your state currently permits surcharging at all.
Rules an Office Has to Follow When It Surcharges
State permission is only the first hurdle. Visa, Mastercard, and other card networks impose their own requirements that apply everywhere, and an office that ignores them risks losing the ability to accept credit cards.
- The office must notify its payment processor and the card network in writing at least 30 days before it starts surcharging.2Visa. Surcharging Credit Cards – Q&A for Merchants
- Signs at the entrance and at the point of sale must alert patients that a fee applies to credit card payments. For online payments, the disclosure has to appear before the patient completes the transaction.3Mastercard. Merchant Surcharge Rules
- The surcharge must appear as its own line on the receipt, not folded into the total.
- The surcharge cannot exceed the office’s actual cost of processing the transaction. Visa caps it at 4% of the transaction even if processing costs are higher.2Visa. Surcharging Credit Cards – Q&A for Merchants
Most medical offices pay between 2% and 3.5% in processing fees, so surcharges in that range are typical. An office charging 4% when its actual processing cost is 2.5% is violating the rules. The surcharge is meant to cover a cost, not generate profit.
Cards That Can’t Be Surcharged
Surcharges apply only to credit card transactions. Card networks prohibit surcharges on debit cards, prepaid cards, and HSA or FSA debit cards. This holds true even when you use a debit card and select “credit” on the terminal. The card is still a debit card, and surcharging it is not allowed.4Visa. US Merchant Surcharge Q and A
That matters if you pay medical bills with an HSA or FSA card. Those function as debit instruments, and no surcharge should show up on those transactions regardless of state law.
If you do pay by credit card and get charged a surcharge, whether that surcharge itself is a reimbursable medical expense is unsettled. The federal employee FSA program lists “Payment Processing Fees” as eligible for a Health Care FSA when supported by a detailed receipt.5FSAFEDS. Eligible Health Care FSA (HC FSA) Expenses IRS Publication 502 doesn’t specifically address credit card surcharges.6Internal Revenue Service. Publication 502, Medical and Dental Expenses If you plan to seek reimbursement, keep the itemized receipt showing the surcharge as a separate line. A credit card statement alone won’t be enough documentation.
Surcharge, Convenience Fee, or Cash Discount
Offices use three different pricing structures to manage credit card costs, and the rules for each are different. Knowing which one you’re looking at tells you whether the fee is legitimate.
Credit Card Surcharge
A surcharge is a percentage added when you pay by credit card through the office’s normal channel — front desk, standard billing, or regular online portal. It has to be a percentage (not a flat dollar amount), disclosed before you pay, applied only to credit cards, and capped at the office’s cost.
Convenience Fee
A convenience fee is a flat, fixed amount charged for using a payment channel that isn’t the office’s standard method. If the office normally collects in person but lets you pay by phone or through an online portal, it can charge a flat fee for that alternate channel. The amount has to be the same regardless of what you owe — a flat $5 or $10, not a percentage.
This is where offices frequently get it wrong. Charging a flat “convenience fee” for every in-person credit card payment at the front desk isn’t a convenience fee. If paying by card at the desk is the standard method, the fee is functioning as a surcharge and has to follow all the surcharge rules: percentage-based, capped at cost, disclosed in advance, credit cards only. Calling it something else doesn’t change what it is. An office also cannot charge both a surcharge and a convenience fee on the same transaction.
Cash Discount (Dual Pricing)
Some offices avoid the surcharge rules entirely by posting a single price (the credit card price) and offering a discount to patients who pay cash or check. This is legal in every state, including states that ban surcharges. Connecticut’s surcharge ban, for example, explicitly permits businesses to post a sign stating that listed prices are discounted for cash.
The distinction lives in which price is the posted one. In a legitimate cash discount, the credit card price is the standard price and cash payers get a reduction. In a surcharge, the cash price is the standard and the credit card price is higher. That sounds semantic, but it determines which rulebook applies. A cash discount doesn’t require advance notice to card networks, has no percentage cap, and doesn’t need to appear as a separate line on the receipt.
Estimates Usually Don’t Include the Surcharge
Under the No Surprises Act, providers must give uninsured and self-pay patients a Good Faith Estimate for scheduled care. The estimate covers clinical items — the procedure, lab work, anesthesia, and related costs.7CMS. No Surprises – Whats a Good Faith Estimate The current rules don’t explicitly require providers to disclose administrative fees like credit card surcharges in the estimate.
That gap means you can get an estimate, budget for it, and still find a 3% surcharge added at checkout. On a $2,000 procedure, that’s another $60 you weren’t expecting. If you plan to pay by credit card, ask the office directly whether it surcharges, and factor the fee in when comparing providers. Some offices will waive it if you ask, especially if you offer to pay by check or set up an ACH transfer, which costs the office far less to process.
What To Do About an Improper Fee
Start with the office manager. Ask for a written explanation of the fee — whether it’s a surcharge, a convenience fee, or something else — and review the payment authorization you signed at intake, because surcharge disclosures often live there. A lot of disputes come down to mislabeled fees or staff who don’t understand the office’s own pricing.
If the office can’t explain the fee, or if it clearly violates the rules (a flat-dollar “surcharge,” a fee on a debit card, no disclosure before payment, or any surcharge in a state that bans them), you have two escalation paths:
- Report the merchant to the card network. For Visa, call the bank that issued your card using the number on the back. Visa routes merchant compliance complaints through the issuing bank rather than directly through its website. Mastercard has a similar process on its merchant surcharge rules page. Networks take these complaints seriously because improper surcharging violates the merchant agreement.8Visa. Report a Purchase Issue3Mastercard. Merchant Surcharge Rules
- File a complaint with your state attorney general’s consumer protection division if the fee violates state law. Most states accept complaints online.9National Association of Attorneys General. Consumer File a Complaint
The simplest workaround skips the dispute entirely. Pay by debit card, HSA or FSA card, check, or cash. None of those can be surcharged, and switching payment types removes the fee.