Best Card Machine for Small Businesses in the UK (2026)
Most small business owners pick a card machine in a hurry. Usually it is when you are setting up, or when a salesperson catches you at the right moment, and then the deal never gets looked at again. That is completely understandable when you have a business to run. But the provider you choose and the rates you agree quietly shape your margins for years, and the market in 2026 looks very different to even a couple of years ago.
This guide covers the main types of card machine, what actually matters when you choose, what you should expect to pay, and what real users say about the biggest UK providers. No sales spin, just a straight steer so you can pick a setup that fits how your business actually trades.
The three main types of card machine
There are three broad types, and the right one comes down to where and how you take payment.
Countertop
A fixed device that sits by the till and connects through a cable or your broadband. Best for a single payment point, like a shop counter or a reception desk, where the customer always comes to you. Reliable, fast, and no battery to think about.
Portable
A wireless handheld that runs on Wi-Fi or 4G so staff can take payment anywhere on the premises. The popular choice for restaurants, pubs, cafes and salons, where you need to bring the machine to the table or the chair. Battery life and signal handling are the things to check.
Mobile
The most compact option, built for trading away from a fixed base entirely. Market stalls, mobile tradespeople, pop-ups and delivery rounds all want a reader that works on 4G alone without needing Wi-Fi. Many of these pair with a phone app rather than being standalone.
What actually matters when you choose
The hardware is the easy part. The decisions that affect your bottom line sit behind the machine.
Pricing structure
This is the biggest cost. Flat rate providers charge the same percentage on every transaction, whatever the card. Tiered pricing separates debit from credit and charges less on debit, which is the bulk of UK consumer spending. Flat rate is simple and cheap when you are small. As your volume grows, those flat percentages start to bite, and tiered pricing usually wins.
Settlement speed
How fast your takings reach your bank affects cash flow directly. Some providers pay you the next working day, others take two to three. We explain why this matters in more detail in our guide to next-day gross settlement. Check whether weekends are included, as some next-day deals quietly exclude them.
Contract terms
Pay as you go providers have no contract, which is reassuring early on. Managed providers typically tie you in for 12 months or longer. None of that is a problem in itself, but always check the length, the notice period, any auto-renewal, and the exit fee before you sign. Those are the terms that catch people out.
Support
A machine going down on a busy Friday night cannot wait for a Monday email. Check whether you get phone support, what hours it runs, and whether you can reach a real person rather than a ticket queue. This is where the cheapest options often ask you to trade a little.
The charges that hide off the headline rate
The percentage is never the whole story. Watch for PCI compliance fees, minimum monthly service charges, statement fees and chargeback admin. These can quietly add £20 to £50 a month. A PCI compliance fee of around £6 a month per terminal is standard and nothing to worry about. It is the unexplained extras on top that are worth questioning. It is also worth understanding why card machine fees can be so high in the first place, so you know what a fair deal looks like.
What should you actually pay in 2026?
Here is a benchmark for what reasonable looks like this year, so you have something to measure your own statement against.
- Flat rate, pay as you go: around 1.69 to 1.75% on every transaction.
- Competitive tiered pricing: from around 0.35% on debit and from around 0.65% on consumer credit.
- PCI compliance: around £6 a month per terminal, clearly itemised. This is standard.
- Settlement: next day is increasingly included as standard, not charged as an extra.
A quick worked example. A business taking £10,000 a month in cards, with a typical 80% debit and 20% credit split, would pay roughly £169 to £175 a month on a flat rate near 1.7%. On competitive tiered pricing, the debit portion alone usually brings that down meaningfully. As a rule of thumb, once you are processing more than around £5,000 a month, tiered pricing tends to beat flat rate over a year.
The main UK providers, and what people actually say
No single provider is best for everyone. Below is a fair read on the biggest names, drawing on common themes from Trustpilot, review sites and forums like Reddit, with the strengths and the gripes both. Use it as a starting point, not gospel, because the right fit depends on your volume and how you trade.
| Provider | Pricing model | Settlement | Contract | Often suits |
|---|---|---|---|---|
| SumUp | Flat 1.69%, no monthly fee | 1 to 2 days | None | Sole traders, market stalls, low volume |
| Square | Flat 1.75% in person, higher for keyed and online | 1 to 2 days | None | Retail and service wanting free tools and POS |
| Zettle by PayPal | Flat 1.75%, no monthly fee | 1 to 2 days | None | Existing PayPal users, occasional sellers |
| Dojo | Quote based, varies by volume | Next day, weekends included | 12 months | Hospitality and retail above £2k a month |
| takepayments | Quote based, plus monthly fee | Next day | 12 months and up | Established businesses wanting volume rates and a human |
| myPOS | Pay as you go or volume rates | Instant to myPOS account | None on PAYG | Businesses wanting instant access to funds |
SumUp
The simplest and cheapest way into card payments. A flat 1.69%, no monthly fee, no contract, and hardware you own from a low one-off cost. Users consistently praise how quickly you can get going, often taking a first payment the day the reader arrives. The common gripe is support. It is built around self-service, with phone help limited to weekday hours on standard accounts, so if something breaks at the weekend you are mostly on your own. Some newer merchants also mention account checks holding funds early on. Best suited to sole traders, market stalls and low volume trade.
Square
Popular for good reason. A flat 1.75% in person, no contract, a cheap reader, and a genuinely useful free ecosystem around it, including invoicing, an online store and a full point of sale. The thing people miss is that the headline rate only covers standard in-person cards. Keyed-in and virtual payments cost more, online payments are priced differently, and non-UK cards carry a surcharge, which adds up if you serve a lot of tourists. Strong all-rounder for retail and service businesses that will use the extra tools.
Zettle by PayPal
A flat 1.75% reader with no monthly fee and no contract, backed by PayPal. The obvious draw is tight integration if you already run on PayPal, with funds landing in your PayPal balance. Feedback is broadly positive on ease of use, though some users raise the usual PayPal frustration around occasional account holds. A sensible pick for occasional sellers and existing PayPal businesses.
Dojo
A managed provider built around fast payouts and hospitality. Users rate the hardware highly, value next-day settlement that includes weekends, and like features such as the handheld that takes table orders and payment in one. The standout complaint, and it is a consistent one, is persistent cold calling from the sales side. Pricing is also quote-based, so you cannot compare it on a price list, and there is a 12-month contract. Strong for hospitality and busier retail processing more than around £2,000 a month, if you are happy to negotiate.
takepayments
One of the most established managed providers, now part of a larger payments group, and one of the most reviewed on Trustpilot with a strong score. People praise the onboarding, the named account manager and the responsive UK phone line. The trade-offs are the ones common to managed providers. Pricing is quote-based rather than published, contracts can run longer, and reviewers mention rate changes during a contract and a separate agreement with the acquiring bank. Worth a quote if you process more than around £5,000 a month and want volume rates with a human on the end of the phone.
myPOS
Different model to most. You buy the terminal outright, there is no monthly fee on pay as you go, and the standout feature is instant settlement, with funds landing in a myPOS account in seconds rather than the next day. The catch is that the money sits in that myPOS account, and moving it to your own bank carries a withdrawal fee, so it suits businesses that will use the funds from there. It also does not take American Express. A good fit if instant access to takings matters more than anything.
How to tell if you are overpaying
The honest answer is that most businesses cannot tell from their statement, because the effective rate is buried under a pile of line items and the headline percentage rarely reflects what you actually pay. That is exactly the gap we built our statement review to close.
Send us your latest statement and we will read it line by line, work out your true effective rate, and tell you plainly whether you are on a fair deal. If you are, we will say so. If you are not, we will introduce you to a provider from our partners that suits how your business trades, so you can compare properly. It is free, there is no obligation, and the report is yours to keep either way. Start your free statement review here.
If you already know you want to move, our guide on how to switch your card machine provider without losing a day's trading walks through the steps.
Frequently asked questions
What is the best card machine for a small business in the UK?
There is no single best machine. It depends on your monthly card volume, where you take payment and how much support you want. Pay as you go readers like SumUp and Square suit low volume and mobile trade. Managed providers like Dojo and takepayments tend to work out cheaper once you are above around £5,000 a month, because tiered pricing charges less on debit.
How much should a small business pay for a card machine in 2026?
As a benchmark, flat rate providers charge around 1.69 to 1.75% on every transaction. Competitive tiered pricing starts from around 0.35% on debit and 0.65% on consumer credit. Expect around £6 a month per terminal for PCI, which is standard, and next-day settlement is increasingly included as standard.
Is SumUp or Square better for a small business?
Both are strong pay as you go options with no contract. SumUp is the simplest and cheapest to start with. Square costs slightly more per transaction but bundles in free invoicing, an online store and a full point of sale. Once your volume grows past around £5,000 a month, a tiered provider usually beats both on cost.
Should I choose flat rate or tiered pricing?
Flat rate charges the same percentage on every card, which is simple and cheap at low volume. Tiered pricing charges less on debit, which is most UK spending. For most businesses above around £5,000 a month in card payments, tiered pricing works out cheaper over a year.
How quickly should card payments reach my account?
Many providers now settle the next working day. Some still take two to three days. On a busy week that gap matters for cash flow, so check the settlement time and whether weekends are included before you sign.
How do I switch card machine provider without downtime?
Check your current contract for any notice period or exit fee first. Once clear, a switch usually takes 7 to 14 working days, and you can run both terminals in parallel briefly so there is no gap in taking payments.
BoonPay is independent. We do not sell you a machine on this page. If you use our free statement review, we may introduce you to a payment partner suited to your business, and we may be paid for that introduction. It never changes the advice we give.