Choosing a Card Machine

Do I have to accept card payments in the UK?

Shop worker holding up a hand to refuse a card, beside a Cash Only sign

Law

Is it a legal requirement to accept card payments in the UK?

No. UK law does not compel businesses to accept card payments. A Treasury written answer to Parliament confirmed this directly: it is the individual merchant’s choice whether to accept or decline any form of payment.

The term “legal tender” is where most of the confusion comes from. It refers to the right to settle a debt in court, not to any obligation on a business to take cards or cash. It has no bearing on how you run your payment policy.

One qualification worth noting: discrimination law. If you run a cash-only or card-only policy, it must be applied consistently. Under the Equality Act 2010, you cannot operate a policy that effectively excludes a protected group, such as older customers who rely on cash. This does not prevent you from going card-only. It means thinking about whether that actually fits your customers.

The rules that catch businesses out relate to how you take cards, not whether you do. You cannot surcharge consumers for paying by card (banned since January 2018). Your provider’s contract will include terms worth reading before you sign. But the basic legal position is clear: you are not required to accept cards.

Reality

Why do some businesses not want to take card payments?

This question deserves a straight answer rather than a dismissal. The three reasons I hear most often are all legitimate.

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The honest truth: most resistance to cards is really resistance to a bad setup from a previous bad experience. That is a solvable problem. It is not a reason to turn away 9 in 10 customers who now expect to tap.

Numbers

What does it actually cost to turn card customers away?

9%Cash share of all UK payments 2024
31.4bnCard transactions in the UK in 2024
£1tn+Total UK card spend value in 2024

What those numbers look like in practice: for every ten customers who walk into your business, roughly one is likely to pay by cash. The other nine expect to tap, chip, or pay by phone.

You will not lose every card customer who can’t pay with you. Some will have cash as a backup. But some will simply leave. A customer who chooses a competitor because you don’t take cards doesn’t complain, doesn’t write a review, and doesn’t appear anywhere on your reports. They just don’t come back. For a cafe, salon, or market stall that runs on repeat custom, that is real money you will never see.

Benefits

What are the practical advantages of accepting card payments?

The case for cards goes beyond not losing customers. A few specific advantages come up consistently with the businesses I work with.

Advantage What it means in practice
Higher average spend Card customers tend to spend more per transaction. When someone can only pay by cash, they buy what the coins in their pocket allow.
Tips captured For hospitality and beauty, a card machine with a tip prompt captures gratuities that cash customers often skip because they don’t have the right change.
Record-keeping Every card sale is logged digitally. VAT returns and year-end reconciliation are much simpler, and you have a clear paper trail if HMRC ever queries anything.
Open to everyone Contactless, chip-and-PIN, Apple Pay, Google Pay: if your machine handles all of them, you never have to turn anyone away. Particularly valuable in busy markets and tourist areas.
Faster queues A contactless tap at £15.86 average (UK Finance, 2024) takes seconds. No counting change, no waiting for the right note.

The practical value of all of this depends on what you’re paying to access it. If your processing fees are too high for your transaction mix, the advantages shrink. Our guide to understanding card machine fees covers the fee structures to know before you sign anything.

The

What if the problem is your setup rather than cards themselves?

This is where I spend most of my time when someone calls me.

If you’ve had a bad experience (fees that didn’t add up, a machine that didn’t fit how you trade, a contract you couldn’t exit), the temptation is to write off cards entirely. In most cases the issue wasn’t cards. It was the specific provider, the pricing model, or the contract terms, none of which are fixed features of every card machine.

I’ve reviewed statements where a market trader was on a blended-rate contract designed for a fixed retail counter, paying a monthly rental on a machine they could only use on market days. The machine wasn’t wrong because it existed. It was wrong because nobody had matched it to how they actually traded.

The right setup for a high-volume cafe is different from the right setup for a mobile hairdresser or a tradesperson collecting payment on site. Fee structure, contract length, payout speed, connectivity: all of it should reflect how you actually work. Our post on how to tell if your card machine is costing you more than it should gives you a practical starting checklist.

Faq

Frequently asked questions

Do I have to accept card payments in the UK?

No. There is no UK law that requires businesses to accept card payments. You can trade cash-only, card-only, or accept both. The choice is entirely yours.

Can I charge customers extra for paying by card?

No. Since January 2018, adding a surcharge for consumer card payments has been banned under the Payment Services Regulations. You cannot add any fee because a customer pays by debit or credit card. See our full post on UK card surcharge rules.

Can I set a minimum spend for card payments?

Yes, under UK law. But Visa and Mastercard’s own rules ban minimum spend limits, and your provider can fine or suspend your account for repeated breaches. It is a legal option that carries real contractual risk.

Do I have to accept contactless payments?

No. If you take cards at all, you are not legally required to accept contactless specifically. Most modern terminals support it by default, but your obligation depends on your provider’s setup, not any law.

Q What happens if a customer has no cash and I only take cash?

They cannot pay and you cannot complete the sale. You are under no legal obligation to accept an alternative. The practical implication is a lost sale, and often a lost customer.

Related reading Is it legal to charge a card fee?Card machine fees explainedIs your card machine costing you more?
6 ways to reduce card payment costs