Can a Service Business Pass Credit Card Fees On to Customers?

What Visa and Mastercard require before the first surcharge

The card rules apply in every state, on top of state law. These come from the Visa Core Rules edition of April 18, 2026, Visa’s U.S. surcharge Q&A, and Mastercard’s U.S. surcharge rules page as it read in September 2026.

• Notice first. Visa: the merchant notifies its acquirer, the bank or processor behind its card account, in writing at least 30 calendar days before publicly announcing a surcharge or first charging one, whichever comes earlier. Mastercard requires notice to both Mastercard and the acquirer “no less than thirty days before the merchant implements a surcharge,” through an online form.
• Credit cards only. Visa’s Q&A: “U.S. merchants cannot surcharge purchases made using a Visa debit card or prepaid card,” even when a debit cardholder presses “credit” on the terminal. Mastercard: “These fees are not allowed on Debit Mastercard or Mastercard prepaid cards.”
• A cap tied to the business’s own cost. Visa: “The Credit Card Surcharge maximum amount is 3.00%,” and no more than the merchant’s average merchant discount rate for credit card transactions over the preceding one or 12 months. Mastercard: the lesser of that average rate for Mastercard credit or its Maximum Surcharge Cap, which its page gives as 4%. Both allow one surcharge across the brand or one per credit product type, not both.
• Refunds carry the surcharge back. Visa’s rules say the merchant must refund any surcharge on a refunded transaction, pro-rated on a partial refund.
• Enforcement. Visa’s Q&A describes yearly mystery shopping by outside auditors and says the acquirer of a merchant surcharging improperly “may be assessed an immediate US $1,000 fine.”

Visa’s Q&A adds that merchants “typically must surcharge Visa on the same terms and conditions as any equal or higher cost competitor that imposes limits on surcharging.” That makes the processor’s setup, not a line typed into the invoice template, the place to set the rate by brand and to tell credit from debit before anything is added.

Which states ban or limit credit card surcharges

State law decides whether a surcharge is allowed at all, and the card rules defer to it: Mastercard’s page says nothing in its rules changes a merchant’s duty to follow state laws “that may prohibit or restrict surcharging of credit transactions.” Four statutes, quoted or closely summarized from their text:

• Connecticut, General Statutes §42-133ff(b): “No person may impose a surcharge on any transaction.” A transaction includes the distribution of “any service” for a price in the state. A discount for paying by cash, check or debit card is allowed with a posted notice: on the premises, on the website before an online payment, and spoken before a phone payment. A violation is an unfair or deceptive trade practice, with an added civil penalty of up to $500 per violation.
• Massachusetts, General Laws chapter 140D, §28A(a)(2): “No seller in any sales transaction may impose a surcharge on a cardholder who elects to use a credit card in lieu of payment by cash, check or similar means.”
• New York, General Business Law §518, in its current text, last updated in February 2024: a seller imposing a surcharge “shall clearly and conspicuously post the total price for using a credit card in such transaction, inclusive of surcharge, provided however, any such surcharge may not exceed the amount of the surcharge charged to the business by the credit card company for such credit card use.” A “two-tier pricing system,” with the credit card price posted alongside the cash price, is allowed. The civil penalty is up to $500 per violation.
• Colorado, Revised Statutes §5-2-212, as published in the 2024 statutes: a surcharge of up to 2% of the total cost, or up to the merchant discount fee the seller actually pays, each with a sign whose wording the statute sets, posted at the premises or shown online before payment. The surcharge goes on the receipt as a separate line item, only one per transaction, and never on cash, check, debit card or gift card payments.

Visa’s Q&A, dated February 15, 2024, says Visa understands that Connecticut, Maine, Massachusetts, Oklahoma and Puerto Rico prohibit surcharging and that Colorado, Minnesota, New Jersey and New York have requirements, and warns that its understanding “may contain errors, omissions, or inaccuracies.” It also says each outlet follows the law of the state where it is located. A business with offices or customers in several states needs its attorney’s list before switching anything on.

Can law firms and accounting firms pass credit card fees to clients?

The statutes and card rules above do not set professional firms apart: a law firm or CPA firm that surcharges follows the same notice, cap, debit and disclosure rules as a plumbing company, plus its own professional rules on fees and client money.

For lawyers, accepting cards is settled in the opinions read for this guide. The Professional Ethics Committee for the State Bar of Texas, in Opinion 582 (2008), wrote that both it and the American Bar Association’s ethics committee, in Formal Opinion 00-419 of July 7, 2000, “have previously ruled that using credit cards in payment of legal fees is acceptable.” It quoted Texas Rule 1.04(a), “A lawyer shall not enter into an arrangement for, charge, or collect an illegal fee or unconscionable fee,” and said earned fees charged to a card may go into the operating account, but a disputed amount may not.

The State Bar of California’s Formal Opinion 2007-172 adds that the description on the card charge “should be general in nature, such as ‘for professional services rendered.’” It also says a merchant account the card bank can debit for chargebacks “is not, and cannot be deemed, a client trust account”; the opinion predates current Rule 1.15, which its editor’s note points to. In its facts the attorney planned to absorb the card fee. Neither opinion decides whether a lawyer may add the card cost to the client’s bill, so that question goes to the state bar’s ethics guidance first.

For an accounting firm, the texts quoted here are the state statutes and card rules, as for any seller. Any card fee belongs in the engagement letter the client signs before the work starts, and the firm’s counsel and state board of accountancy can confirm nothing else applies. The same goes for a managed IT provider: the term sits in the signed agreement, like a late-payment clause, not on the first invoice after it.

What the invoice and the payment page have to show

A business that bills by invoice has no front door for a sign, so the notice has to travel with the invoice and the payment page. Visa’s table for the U.S. is the most specific text:

• Online payment page or portal: a notice on “the first page that references credit card brands accepted,” and again on the checkout page, each in at least 10-point Arial and no smaller than the surrounding text, with the chance to cancel after seeing the surcharge.
• By phone, a spoken notice that includes the surcharge amount; at a front counter, a notice at the entrance in at least 32-point Arial and at each payment point in at least 16-point.
• What the notice says, per Visa: the exact amount or percentage, that the merchant charges it and it applies only to credit transactions, and that it is not greater than the merchant discount rate for Visa credit card transactions at the merchant.
• The receipt: the surcharge as a separate charge, which Visa’s Q&A and Colorado’s statute require; Mastercard’s page asks for its dollar amount on the receipt.
• In New York, the card total including the surcharge, posted; on an invoice, read plainly, the card total in dollars beside the total for other methods, which counsel can confirm. In Colorado, the statute’s sign wording, word for word.

Illustrative example, for counsel to adapt and only where state law allows a surcharge: an invoice footer reading “Total if paid by ACH or check: $12,000.00. Total if paid by credit card: $12,360.00, including a 3% credit card surcharge charged by [Company], not by the card brand. It applies to credit cards only, not debit cards, and is not greater than the merchant discount rate we pay for credit card transactions.” The figures are invented. Check the percentage against the processor statements, the state’s cap and Visa’s 3% before it goes out.

Is ACH a better answer than a surcharge for commercial customers?

For a commercial customer paying large invoices, moving the payment to ACH removes the card cost instead of passing it on. Nacha, which publishes the ACH network’s operating rules, describes it as reaching all U.S. bank and credit union accounts, with payments processed within hours on the same business day or scheduled one or two business days out. Same Day ACH has a limit of $1 million per payment, which Nacha says rises to $10 million on September 17, 2027.

ACH is not free either, so compare the bank’s ACH fee with the card processor’s statement, payment by payment. Nor does it shorten the wait by itself: an invoice that sits past its terms waits the same whatever the method. The choice is not all or nothing: a surcharge, where legal, keeps cards open for small one-time customers; ACH as the default in a commercial agreement covers large recurring invoices; and a discount for paying by bank transfer or check is a third route, which counsel can word for the state.

• Ask at setup. When a commercial account opens, ask its accounts payable team how it pays vendors and what it needs to pay by ACH, and record the answer.
• Put it on every invoice: bank details or an ACH payment link, on the invoice and in the email that carries it.
• Make it the default. For recurring work, an ACH or autopay clause in the service agreement, reviewed by counsel and signed before the work starts.
• Protect the bank details. The FBI’s Internet Crime Complaint Center advises: “Use secondary channels and/or two-factor authentication to verify requests for changes in account information.” Tell customers in writing that the business never changes its bank details by email alone, and confirm any change by calling a number already on file.

Illustrative example: a company bills $200,000 a month to commercial customers, $80,000 of it paid by card at an effective rate of 2.8%, or $2,240 a month in card fees. If its four largest card-paying accounts, $50,000 a month between them, move to ACH, $1,400 a month in card fees gives way to whatever the bank charges for four ACH payments. The figures are invented; the processor statements give the real ones.

The count: what card acceptance costs the business

Every decision above starts from a number the business already has: what it pays to accept cards. Visa’s cap for a merchant is its own average merchant discount rate, never above 3%, so the processor statements are both the cost and the ceiling. One spreadsheet, built once from twelve months of statements and the invoice list:

• Card volume and card fees by month. Fees divided by volume is the effective rate.
• The same split by brand, and credit against debit where the statement shows it, since debit and prepaid cannot be surcharged.
• For each customer: invoices paid by card, ACH and check, and the card fees that customer’s payments cost.
• Days from invoice to deposit by payment method, so a cheaper method is not traded for a slower one unseen.
• The states where the business has offices and where its customers are billed.

Sort customers by card fees, largest first: the top of the list is where an ACH conversation saves the most, and the effective-rate column is the ceiling for any surcharge. After that, a weekly look takes minutes: card fees as a share of deposits, any surcharge charged on a debit card, and any new account opened without a payment method on file.

When to leave card fees alone, and where the Review fits

If card fees are a small line, the card payers are small one-time customers, or the business sits in Connecticut or Massachusetts, leaving fees alone or folding the cost into prices may be the better answer; Visa’s Q&A itself lists the customer’s experience and what competitors do as factors to weigh. Before switching anything on, take the spreadsheet to the attorney with three questions: which states’ laws apply, what the invoice and payment page must say word for word, and, for a law firm, what the state’s ethics rules say about adding card costs to a client’s bill.

For an owner-led company, the Revenue Review counts this under the Invoice → Payment hand-off. From read-only processor statements, invoices and bank deposits, it measures card costs by customer and month, the days each payment method takes, and which accounts would save the most on ACH, in monthly dollars. It does not decide what is legal; that stays with counsel. It takes two weeks, and the report is the company’s to keep.

The next step is a free 20-minute call, where we say whether the count above, done in-house, is enough.