A wet-led bar isn’t a shop that happens to have pumps. You’ve got tabs running, a tip line that’s now a legal duty rather than a nicety, and a rush on a Saturday night. Card machines for pubs get judged on those three things and very little else. Here’s what matters before you sign for one.

Tabs, without holding anyone’s card

The old way was simple and it’s now a bad idea: card behind the optics, name on a beer mat, settle up at the end. Two problems with it.

First, you’re holding a card you can’t actually charge. If the group walks out and you key those details in yourself, that’s a card-not-present transaction with no cardholder authorisation. You’ll usually lose the chargeback.

Second, you’re storing someone’s payment details in a pint glass by the spirits. PCI DSS isn’t UK law. It’s a contract you signed with your acquirer, and a glass full of other people’s cards is what it exists to stop. Our plain-English guide to PCI DSS covers what your acquirer expects.

Pre-authorisation does the same job properly. You take the card once, authorise a set amount (£50, £100, whatever suits your average tab) and that money is ringfenced on the customer’s account without leaving it. They keep the card. At the end of the night you complete the transaction for what they actually spent.

Two honest caveats. Pre-auth isn’t available on every terminal, so ask for it by name. And the hold can sit on the customer’s available balance for a while afterwards, depending on their bank. Tell them that when you take the card.

Splitting a round without stalling the queue

Check whether the POS can split a tab evenly across a number of cards or by item. Even-split is the quicker option at a bar, because nobody has to remember who had the Guinness.

Splitting by item is slower and it’s rarely worth doing at the counter. If a group insists, take the round on one card and let them square up between themselves. That isn’t you being awkward. It’s you keeping the fourteen people behind them moving.

Where a basic standalone terminal struggles is the running total. It’ll take four separate payments, but nothing joins them to one tab, so staff end up doing mental arithmetic at eleven o’clock. That’s where the mis-keys come from.

If bills get split daily rather than occasionally, you’re closer to a restaurant setup than a bar one, and integrated versus standalone for restaurants is the better read.

The tipping prompt, and what changed in October 2024

If your terminal asks “add a tip?”, the money it collects is yours to hand on. Tips paid by card are likely to be employer-received tips: the money lands in your merchant settlement, so you’re the one passing it on.

Under the Employment (Allocation of Tips) Act 2023, and the statutory code in force since 1 October 2024, qualifying tips must go to workers without deductions. There’s a deadline as well: a tip left on 23 June has to reach staff by 31 July, the end of the month following the month it was paid. You’re expected to have a written tipping policy, and staff can ask for their own tipping record. It applies in England, Scotland and Wales.

The full guidance is on gov.uk. Half an hour, well spent. If your setup is complicated (agency staff, a tronc, more than one site) get proper advice. This is a card machine article, not a legal one.

What it means for the machine in your hand:

• Tips should report separately from sales. If your end-of-day totals fold the tip into the sale, you can’t count what came in. Ask to see a real end-of-day report before you commit, not a brochure.
• The prompt should be configurable. Fixed amounts (£1 / £2 / £5) can be quicker than percentages behind a bar. Nobody’s working out 12.5% of £8.40 with four people waiting.
• You need to switch it off per terminal. The food pass and the wet bar don’t have to behave the same.
• Don’t net your card fee off the tip before you share it out. Under the Act, deductions come out of your side.

Saturday night: seconds per tap, and the battery

Nobody buys a card machine on speed. Then Saturday happens.

The delay you can’t see on a spec sheet is everything around the tap. How long it takes to wake the screen. Whether the connection is stable or renegotiating. Whether it prints a merchant copy nobody wants.

Three or four seconds of that per payment is invisible on a Tuesday and brutal at half ten on a Saturday.

Then there’s the battery. A terminal specced for a full day of light use in a shop is a different animal to six hours of constant taps with the screen lit and a printer firing.

Batteries age, too. A terminal that comfortably did a Saturday when it arrived may not manage it two years later, and you find that out at eleven with a queue three deep.

Two fixes, both cheap. Put a second charging base at the other end of the bar so a machine can top up between rushes, and keep a spare unit. Ask whether the battery is swappable.

Turn the merchant receipt off by default while you’re at it. Prompt for a customer copy, print it if they say yes.

The £100 contactless cap, and why phones get past it

Contactless on a physical card has long stopped at £100 a transaction in the UK, with a running total on top of that (commonly £300) after which the terminal asks for a PIN. Since March 2026 banks can set their own limits, though most are expected to keep the current ones for now.

That bites harder in a bar than a café. A round for six with a couple of doubles clears £100 without trying, and the moment it does you’re back to chip-and-PIN: card in, keypad turned round, four digits, wait, remove card, don’t forget the card. That’s your slowest transaction, at the busiest point of the night.

A phone or a watch behaves differently. Apple Pay and Google Pay verify the cardholder on the device with a face, a fingerprint or a passcode before the terminal ever sees the payment. In most cases that means the £100 ceiling doesn’t apply, and the practical limit comes down to the terminal, your acquirer and the customer’s own bank.

So check whatever you buy handles high-value wallet payments, and tell your staff to say “phone’s fine if you’ve got it” when a round comes to £118.

Beer gardens, function rooms and the wifi that doesn’t reach

Your wifi was installed for the office and the till behind the bar. Not for the far corner of a beer garden with two feet of Victorian brick in the way.

Weak wifi outdoors is worth planning for, and one fix is to go mobile. Stop trying to make wifi stretch. Get terminals that do 4G with a multi-network SIM, so each one roams onto whichever network is strongest where it’s standing.

Keep wifi as the primary connection indoors; The point is having both, with automatic fallback.

Two questions before you sign. Is the SIM multi-network or locked to one operator? And is there a data charge per terminal, because on some plans it’s included and on others it’s an extra monthly charge, which adds up across several machines and may not be on the headline quote.

Store-and-forward, where the terminal takes a payment offline and sends it when signal returns, is a backstop rather than a plan. It can still decline hours later, and by then your customer’s in a taxi.

Two tills, one bar: integrated or standalone?

For a wet-led bar with no food, two standalone portable terminals can suit better than a full POS setup and may cost less to run. Someone rings the round into the till, reads the total, keys it into the machine. Simple enough. It works because a bar round is one number.

The price you pay is re-keying. Every payment is a chance to type £4.80 as £48.00, and nobody finds it until the cash-up won’t balance. Integrated terminals pull the total straight off the till, so the two figures can’t disagree, and card tips land in the right column of the report on their own.

Where the line usually falls: no food, one number per sale, two tills, and standalone is fine. Food menu, tabs running all night, table service in the snug, bills getting split, and integration earns its keep. SkyTab starts from £39/month, for instance.

Underneath that sits the form-factor question, worth settling on its own: countertop, portable or fully mobile are three machines with three different failure modes. One option is a countertop fixed to the bar plus one portable that lives on charge.

Matchdays, festivals and February

Pub trade can be lumpy: a busy matchday one week, a quiet stretch the next. The rental doesn’t care.

That’s why contract length can matter more than the headline rate for a pub with lumpy trade. Take the monthly terminal cost you’re quoted, multiply it by the length of the agreement, then by the number of terminals. That’s the real number. You pay it in a dead February the same as on Boxing Day, and a minimum service charge, a PCI fee and an exit fee sit on top.

If your trade is seasonal or event-driven, look for no long contract. It exists. Rolling monthly terms are what to look for if you only need terminals for part of the year. Check the term before you sign: here’s who still sells card machines without a long tie-in.

And if the gap is cashflow rather than contract, a merchant cash advance against future card takings can bridge it. YouLend funds in days, not weeks, with repayments that flex with your takings.

FAQs

Do card machines for pubs need a pre-auth or tab function?

Only if you run tabs. If you take big groups or function bookings, you may want it. Not every terminal supports pre-authorisation. Ask for pre-authorisation by name when you’re getting quotes, because “supports tabs” can mean anything on a spec sheet.

Can I still keep a customer’s card behind the bar?

You can, but you’re holding a card you can’t charge without the cardholder there, and storing card details is the sort of thing PCI DSS exists to stop. A pre-authorisation hold gets you the same cover with none of that.

Do I have to pass on all card tips to my staff?

Under the Employment (Allocation of Tips) Act 2023 and the statutory code in force since 1 October 2024, qualifying tips must go to workers without deductions, and there’s a deadline for paying them out. Read the guidance on gov.uk and take proper advice for your own setup. This article can’t give you that.

How many terminals does a two-bar pub need?

A sensible starting point is one per serving point plus a spare that lives on charge. The spare isn’t a luxury on a Saturday. It’s what stops a flat battery closing a till. If you’re paying a monthly fee per terminal, put the spare on a rolling term, so it isn’t costing you all winter.