Accepting Visa as a merchant

Visa is a four-party scheme: it sets the rules and operates the network, but it does not contract with you. Your acquirer does, and the price you pay is interchange plus scheme fees plus acquirer markup. Only the last of those is negotiable, which is why understanding the split matters more than the headline rate.

How your Visa rate is actually built

Interchange flows to the issuer and is capped in regulated markets. Scheme fees flow to Visa and are neither capped nor negotiable, and they have grown steadily as a share of total cost. Acquirer markup is what your provider keeps. Under pass-through pricing you see all three. Under a blended rate you see one number, and the blend is where a provider absorbs interchange reductions without passing them on.

Unblending

Blended pricing is the exception, and it takes your written request

Article 9 of Regulation (EU) 2015/751 sets a default most merchants have never been shown. Each acquirer shall offer and charge its payee merchant service charges individually specified for different categories and different brands of payment cards, unless the payee requests blended charges in writing. Blending is not the norm the law assumes. It is the exception, and it is yours to ask for rather than theirs to apply.

Article 9(2) goes further. The agreement with the payee has to include individually specified information on the amount of the merchant service charges, the interchange fees and the scheme fees applicable to each category and each brand. That is not a reporting nicety. It is what the contract is required to contain.

Two questions follow and neither takes long to answer. Did you ever put a request for blended pricing in writing, and does your agreement carry the itemised figures Article 9(2) describes? If both answers are no, the pricing you are on is not the one the regulation set as the starting point, and the conversation about changing it begins from firmer ground than most merchants realise.

Scheme fees

Why the cap did not lower your total cost as much as it should have

The interchange caps did what they said. What they could not do on their own was hold total acceptance cost down, because interchange is one component of three and only that one is capped.

The regulation anticipated part of the problem. Article 5 prohibits circumvention by treating any agreed remuneration with an equivalent object or effect of the interchange fee as part of the interchange fee, net compensation included, defined as the total net amount of payments, rebates or incentives an issuer receives from the scheme, the acquirer or any other intermediary. Rebates flowing back to issuers count against the cap.

Scheme fees sit outside that. They are paid to the scheme, they are neither capped nor negotiable, and they have grown as a share of what you pay. The only meaningful measure is therefore your effective rate on your own volume over time rather than the interchange line on its own, and under a blend you cannot see that movement at all. Which brings you back to the article above.

Authentication

Authentication is changing: DAF sunset and Payment Passkey

Visa has said it will sunset the Digital Authentication Framework 3D Secure programme in September 2026 as it transitions to newer methods including Visa Payment Passkey, intended to cut friction while maintaining strong authentication. For any merchant whose checkout depends on a specific 3DS configuration, that is a roadmap item with a date rather than a background detail, and it is a question worth putting to your PSP now rather than in September.

Recurring billing: the Original Transaction ID

Visa recommends consistent use of the Original Transaction ID to link an initial cardholder-initiated transaction to subsequent merchant-initiated transactions, across both token-based and PAN-based flows. The stated benefit is that issuers can identify individual subscriptions and validate consent, which improves authorisation outcomes and reduces unnecessary declines. If you run subscriptions and nobody has confirmed OTID is being populated correctly, that is a direct authorisation-rate lever sitting unused.

Monitoring and disputes: VAMP and CE3.0

The Visa Acquirer Monitoring Programme replaced the older fraud and dispute programmes with a single combined ratio, and the final stricter thresholds came into enforcement on 1 April 2026. Merchants need to stay below a 1.5 per cent VAMP ratio and a 20 per cent enumeration ratio, with a charge per violation in any month over threshold. Separately, Visa is expanding the scope of Compelling Evidence 3.0 from 24 October 2026. Both change the economics of disputes rather than the fee, and both are frequently invisible to the person who negotiates the contract.

Acceptance

You are not obliged to accept every Visa product

Article 10 of the same regulation removes the honour all cards rule in the form most merchants remember it. A scheme may not apply any rule that obliges a payee accepting a card-based payment instrument issued by one issuer also to accept other card-based payment instruments of the same scheme.

What survives is narrower than the habit. You must accept consumer card-based payment instruments of the same brand and of the same category, prepaid, debit or credit, where those fall under the interchange caps. Commercial cards are not in that set, and commercial cards are precisely the ones carrying interchange the regulation does not cap.

The freedom comes with an obligation. Article 10(4) requires you to inform consumers clearly and unequivocally about which brands and categories you accept, at the same time and as prominently as you show what you do accept, so this is a checkout decision rather than a switch to flip quietly. And whether declining a category saves more in interchange than it costs in lost orders is an arithmetic question about your own mix rather than a principle. Most merchants have never run it, because most have never been told the option is there.

Australia: what changes on 1 October 2026

The RBA Conclusions Paper of 31 March 2026 removes surcharging on eftpos, Mastercard and Visa from 1 October 2026, lowers domestic interchange caps, introduces caps on foreign card interchange and requires networks and large acquirers to publish their fees. From that date Australian merchants cannot recover acceptance cost from customers, and whether the interchange saving reaches them depends on pass-through versus blended pricing.

Which payment provider supports Visa?

Adyen, Checkout.com, Stripe, Worldline, Nexi, Cybersource and Global Payments all document Visa acceptance, among others, as does every acquirer in the market, which is exactly why support is the wrong question. Ask instead how your Visa volume is priced, whether interchange and scheme fees reach you as pass-through or blended into an average, and what your effective rate has done over the last twelve months.

Reviewing what card acceptance costs you

What you pay is set in your acquiring contract, not by the scheme. Start by establishing whether you are overpaying your PSP, or move straight to cutting your PSP costs, where interchange, scheme fees and markup are separated before anything is negotiated.

Relevant markets: global