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 two-hour window on a Saturday where the till does most of its week. 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 standard on every terminal; it’s typically a hospitality POS function, not something a basic reader does. And the hold can sit on the customer’s available balance for a few days afterwards, depending on their bank. Tell them that when you take the card.

Splitting a round without stalling the queue

Most hospitality POS systems split a tab two ways: evenly across a number of cards, or by item. Even-split is the one you want at a bar. Two taps. Nobody has to remember who had the Guinness, and it clears in seconds.

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 almost always 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 have to 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) usually beat 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 often won’t 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, because on most modern terminals it isn’t.

Turn the merchant receipt off by default while you’re at it. Prompt for a customer copy, print it if they say yes. Most won’t.

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

Contactless on a physical card stops 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.

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.

It’s one of the most common problems in a pub install, and the fix is nearly always the same. 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. Outdoors that’s often not the network your own phone is on.

Keep wifi as the primary connection indoors; it’s quicker and doesn’t lean on the mast. 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 a few pounds a month each, which adds up across four machines and isn’t 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 often beat a full POS setup and 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. Most pubs end up with a countertop fixed to the bar and one portable that lives on charge.

Matchdays, festivals and February

Wet-led trade is lumpy in a way most retail isn’t. A matchday bar can do more in four hours than it did in the fortnight before it, and a garden that pays for itself in July is a storage area by November. The rental doesn’t care.

That’s why contract length matters more than the headline rate for a lot of pubs. 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 let you hand two terminals back in October and take them again in May, and a few providers are fine with that. Most of the big names would rather you didn’t ask: 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. Most wet-led venues do at some point: Sunday sport, big groups, function bookings. A basic standalone reader typically won’t do pre-authorisation, and a hospitality POS usually will. 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?

In most cases, 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.