Credit card merchant fees: what UK businesses actually pay

Most UK businesses pay between 0.25% and 0.6% on debit cards, and 0.3% to 0.9% on consumer credit cards, once every charge is counted. Commercial and corporate cards run from 1.5% to 2.5%, and often higher. If your all-in cost sits above 2% and you are not in a high-risk category, something in your setup is worth looking at.

Ask the same question elsewhere and you get a range rather than an answer. Published guides put credit card merchant fees anywhere between 0.2% and 3.5%. That spread is not vagueness. It reflects genuinely different card mixes, pricing models and risk categories, and no guide tells you which one applies to you.

One thing worth saying up front. Merchant Advice places businesses with acquirers and is paid by them on placement. Most guides answering this question are published by the companies charging the fee. We would rather you knew where the advice comes from.

What you are actually paying for on every card transaction

Your credit card merchant charges are three separate costs bundled into one number. Only one of them is negotiable, which is the single most useful thing to understand about card pricing.

• Interchange fee. Paid to the bank that issued your customer's card. It is the largest component of the cost, and it is set by the card schemes rather than by your provider.
• Scheme fee. Paid to Visa or Mastercard for running the network. Small, typically a fraction of a percent, and identical whoever your provider is.
• Acquirer margin. What your provider keeps. This is the only part anyone can move, and it is usually the smallest of the three.

Together these make up the merchant service charge, or MSC. You will also see it called the Merchant Discount Rate.

UK regulation caps interchange on consumer cards at roughly 0.2% for debit and 0.3% for credit. That cap is the floor beneath any quote you will ever receive. In practice this is why a provider promising to halve your rate is usually either moving you onto a different pricing model or quietly excluding something.

Who receives each fee, and why it exists at all

Each component goes to a different party, and only one of them is your provider. That tells you who there is any point negotiating with.

Component	Who receives it	What it pays for	Negotiable?
Interchange	Your customer's issuing bank	The credit risk the bank carries, plus the rewards on the card	No
Scheme fee	Visa or Mastercard	Running and policing the network	No
Acquirer margin	Your payment provider	Processing, settlement, support and risk-taking	Yes

Interchange exists because the issuing bank fronts the money and carries the risk of the cardholder never repaying it. Rewards cards cost more for exactly that reason. Somebody funds the air miles. It is the business accepting the card.

In the UK the business absorbs this rather than the customer, which is not true everywhere. That single fact is why the decision sits in the pricing model and the margin, rather than in whether to accept cards at all.

What UK card processing costs, and why every guide quotes a different number

Typical UK ranges, assuming a standard retailer with no risk loading:

• Consumer debit. 0.25% to 0.6% all-in.
• Consumer credit. 0.3% to 0.9% all-in.
• Commercial and corporate credit. 1.5% to 2.5%, and sometimes more.
• Flat-rate products. Around 1.69% on a card reader, or roughly 1.4% plus 25p online, whatever the card.

A rate quoted without your card mix is not a quote. It is a marketing number. Two businesses on identical contracts can pay very different effective rates purely because of who their customers are.

There is only one figure that lets you compare providers honestly. Take your total card charges for the month and divide by your total card turnover. That is your effective rate, and it is the number to argue about.

Most businesses we review have never calculated it. They know their headline rate and are surprised by the gap.

Why published ranges disagree so widely

The guides are not contradicting each other at random. They are measuring different things and presenting the results as though they were the same measure.

What the source quotes	Typical figure	Why it misleads
Interchange only	0.2% to 0.3%	Excludes scheme fees and the acquirer margin. Nobody has ever paid this.
Full merchant service charge	1.5% to 3.4%	All-in, but usually assumes a credit-heavy or mixed card book.
Flat-rate consumer product	1.69%	Blends cheap debit and expensive commercial cards into one number.
Debit-weighted average	0.25% to 0.6%	Right for debit, but quoted as though it were your whole bill. Collapses the moment credit volume rises.

None of these published averages include sector risk loading. That omission is why a business in a harder category reads every guide on the market and recognises none of the numbers.

Why the same sale costs a different amount depending on the card

Card mix is the biggest driver of a real bill, and the one businesses least expect. The same £100 sale can cost you 25p or £2.50 depending entirely on what your customer pulls out of their wallet.

Card presented	Typical all-in cost	Why
UK consumer debit	0.25% to 0.6%	Interchange capped at 0.2%. No credit risk for the issuer to price.
UK consumer credit	0.3% to 0.9%	Interchange capped at 0.3%. The issuer carries repayment risk.
Premium and rewards	Higher again	The cashback and air miles are funded from interchange.
Commercial and corporate	1.5% to 2.5%+	Sits outside the regulated caps entirely.
Non-UK and non-EEA	Materially higher	Inter-regional interchange is uncapped and substantially more expensive.

Two consequences follow. A B2B business billing corporate cards cannot use any consumer benchmark. And an ecommerce business with international customers will always run above a domestic high-street equivalent, no matter who processes for it.

Card-present is also cheaper than card-not-present for the same card. Fraud risk is lower when the card is physically there.

Amex merchant fees versus Visa and Mastercard

American Express costs more. The reason is structural rather than a matter of negotiation. Amex merchant fees commonly start around 1.5% where a Visa or Mastercard consumer card would cost 0.25% to 0.9%.

	Visa and Mastercard	American Express
Model	Four-party. Separate issuer and acquirer.	Three-party. Amex issues the card and runs the network.
Interchange	Paid to a separate issuing bank, capped by regulation	No separate interchange exists, so no cap applies
Typical UK cost	0.25% to 0.9% on consumer cards	Commonly 1.5% and up
How you accept it	Through your acquirer as standard	Through your acquirer, or contracted with Amex directly

Because there is no separate issuing bank, there is no interchange to cap. The regulation that pulled Visa and Mastercard costs down never applied to Amex in the same way.

The real question is not whether Amex is more expensive. It is whether the customers who pay on Amex are worth the margin. Refusing Amex in a business with a corporate client base is a revenue decision dressed up as a cost saving. In practice most businesses that drop Amex over the rate have never checked what share of turnover it carries.

How your rate is structured: blended, tiered and interchange-plus

The pricing model decides whether you can see what you are paying. Above modest volume it matters more than the headline number.

Model	What you see	What it hides	Who it suits
Blended or flat-rate	One rate for every card	That cheap debit is subsidising expensive commercial cards	Low volume, debit-light, wants predictability over savings
Tiered	Qualified, mid-qualified and non-qualified bands	Which transactions get downgraded, and why	Almost nobody, once they understand it
Interchange-plus	Interchange and scheme fees at cost, plus a stated margin	Nothing, which is the point	Any business above roughly £10k a month in card turnover

Tiered pricing deserves particular suspicion. A transaction gets downgraded into a more expensive band for reasons you are rarely told about, and the quoted qualified rate is the one you see least often on your statement.

What usually happens is a business reads the qualified rate on its quote and never checks how much of its volume actually qualifies. On a rewards-heavy card book, very little of it does.

Interchange-plus is not automatically cheaper. It is automatically visible, which is what lets you negotiate the only component that was ever negotiable. Our interchange-plus-plus explainer covers the mechanics in full.

Flat-rate genuinely suits some businesses. A market trader taking £2,000 a month should not be modelling interchange. Simplicity has real value at that scale.

The charges that never appear in the headline rate

The percentage is not the bill. For a low-volume business the fixed monthly charges routinely exceed the transaction fees, which inverts the entire comparison.

PCI compliance fee. A few pounds a month for the annual self-assessment. Let it lapse and a non-compliance charge replaces it, usually several times larger.

Chargeback fee. Charged per dispute whether you win it or lose it. Our chargebacks guide covers the process itself.

Authorisation fee. Pennies per attempt, charged on declines as well as approvals. A business with a high decline rate pays for every failure.

Minimum monthly service charge. Bites hardest on seasonal businesses. A quiet January still costs you the minimum.

Refund fee. Check whether the original transaction fee comes back. Frequently it does not, so a refunded sale costs you twice.

Terminal hire and gateway fees sit on top again. Those belong to the card terminals conversation rather than this one.

Where an acquirer holds a rolling reserve, that is not a fee, but it is a real cash flow cost. Money you have earned sits with someone else for months.

A common issue is comparing two quotes on rate alone when the fixed charges differ by £30 a month. On £5,000 of card turnover that gap is worth more than half a percent, and it beats anything you will win by haggling.

What you can and cannot pass on to customers

This is where the published guides get it wrong, and the error matters commercially.

The Payment Services Regulations 2017 banned surcharging on consumer card payments from 13 January 2018. The UK drew the rule wider than the EU required, extending it to consumer payments made through wallets such as Apple Pay as well as cards.

Consumer cards. You cannot add a surcharge. Not 2%, not 50p, not a "card fee" by another name.

Commercial and corporate cards. These sit outside the ban. Regulation 6A excludes commercial cards, so a surcharge is permitted. It must not exceed your actual cost of accepting the payment.

That distinction is the one thing a B2B business needs from this article. Guides stating flatly that surcharging is illegal are describing the consumer half of the rule and stopping there.

In practice the businesses this catches are almost always B2B. They read that the ban is universal, absorb the cost on corporate cards year after year, and never revisit it.

A service charge applied to everyone regardless of how they pay is a different thing entirely, and is not a card surcharge. Minimum spend thresholds are a separate question again, governed by your card scheme rules rather than the Payment Services Regulations.

Get advice on your own customer base before acting on this. The rules turn on who your customers are, and that is a question about your business rather than about payments.

What decides your rate, and why it is an underwriting decision

An acquirer's quote is not a tariff. It is the price of the risk they think they are taking on you. This is the part the companies publishing fee guides have no reason to explain.

The factors that move a quote:

• Card mix. The largest driver, and almost entirely fixed by who your customers are.
• Annual card turnover. Real pricing thresholds exist. Crossing one changes the conversation.
• Average transaction value. Fixed per-transaction pence punish small baskets brutally.
• Channel. Card present, ecommerce, or MOTO and virtual terminal, in ascending order of cost.
• Merchant category code. Your sector classification, which you should check is correct.
• Trading history. Time established, and whether the acquirer can see a clean record.

Underneath all of it sits underwriting. Rate loading is not arbitrary, and it escalates in fairly predictable steps.

Risk position	What the acquirer does	What it costs you
Standard retail, clean history	Prices at book rate	The published ranges apply
Elevated disputes or a watched sector	Loads the margin	Materially above book, sometimes several times
Genuine high-risk category	Loads the margin and holds a reserve	Higher rate plus delayed access to your own money
Outside appetite	Declines	No rate at all, at any price

Sometimes a reserve is the better trade. An acquirer taking a rolling reserve instead of loading your rate can leave you cheaper per transaction, if your cash flow can carry it.

The factors that improve approval odds also improve the rate offered. A clean trading history, a controlled dispute ratio, accurate sector classification and honest volume forecasts all price the risk down as well as getting the account open.

Chargeback history feeds straight back into both price and stability. A rate quoted before underwriting is indicative, and it can move on approval.

What usually goes wrong here is chasing the last few basis points onto an account that is not durable. The cheapest rate on an account that gets terminated in month four is worth nothing. Stability beats a fractional saving every time.

How to actually reduce what you pay

Most cost-saving advice on this topic amounts to "shop around". Here is the order that actually works.

Action	Typical impact	Worth doing when
Calculate your effective rate	None on its own, but nothing else is possible without it	Always. Start here.
Check your merchant category code	Large, if it is wrong	Your sector could be misread as riskier than it is
Change pricing model	Usually the biggest single move	Above roughly £10k a month in card turnover
Strip fixed monthly charges	Small but easy	Nearly always. These are softer than the rate.
Negotiate the margin	Modest	Only after the model is right

To get a real quote rather than a headline rate, an acquirer needs documentation. Have your recent merchant statements, a card mix breakdown, your annual card turnover and your average transaction value ready. Without those, anyone quoting you is guessing.

Moving model usually beats shaving basis points. What usually happens is a business negotiates ten basis points off the rate and leaves the structure untouched. The structure was worth ten times more.

Before chasing a better rate, read your contract. Length, notice period and exit terms decide whether a better rate is even reachable this year. Switching is worth the disruption when the saving is structural, and not when it is four basis points.

Below roughly £5k a month you have very little leverage, and a flat-rate product may simply be the rational choice. Anyone telling a small business it can negotiate its way to interchange-plus is selling something.

Conclusion

You cannot change interchange and you cannot change scheme fees. Between them that is most of your bill, and it is identical whoever processes your payments.

What you can change is the pricing model, the acquirer margin, and how accurately your business is classified and understood at underwriting. That is the whole decision.

If your effective rate is above 2% and you are not in a high-risk category, it is worth a look. Talk to us, send a recent statement, and we will give you a straight answer. That includes telling you when you are already on a good deal.