Thirty pounds of hardware instead of three hundred

Nobody thinks of a card terminal as expensive. It arrived with the business, it sits there, and the cost is buried in a percentage you stopped reading years ago.

Laid out properly it is a strange arrangement. Two to three hundred pounds for the device, or a monthly rental in perpetuity if you took that option. Then between one and a half and three per cent of everything that passes through it, for ever, whether the machine does anything clever that day or not.

What the alternative actually is

A small NFC tag — a sticker, essentially, with a chip in it — and a writer that plugs into the phone or tablet you already own. About thirty pounds for both, once.

Your till writes the amount to the tag. The customer holds their phone to it, their wallet opens with the amount already filled in, and they approve with their face or thumb. The screen says paid before they have put their phone away.

That is the whole apparatus. No terminal, no rental, no percentage, and nothing to replace when the contract renews.

The customer does nothing new

This is the part that matters more than the hardware cost.

Britain has spent fifteen years training everybody to hold their phone or card near a thing on the counter. That gesture is deeply learned, and it is the same gesture here. Nobody has to be taught, nobody has to read a sign, nobody has to be talked through it while a queue builds.

Tapping is not a feature. It is the only motion your customers already make without thinking.

A code on screen works too, and some customers prefer it. But asking someone to open a camera, find the code and aim is three deliberate actions where tapping is none.

Practical details, since they are what actually matter

• The tag is rewritableA new amount for every sale. They take hundreds of thousands of writes, so it lasts years rather than months.
• It expiresAfter ninety seconds the request clears, so a tag left on the counter cannot pay for the previous order. This is not optional and should not be.
• It works alongside your card machineNobody is switching anything off. This sits next to it and catches the customers who want it.
• There is nothing to go wrong offlineThe tag holds a request, not a transaction. Your till still needs a connection to confirm, same as a terminal.

The honest state of it

Why it gets more interesting, not less

Card acceptance grew because both ends eventually had a reason. Shops got the sale, customers got convenience and credit, and the schemes spent decades funding the gap between.

Here the economics start in a better place. The saving lands with you rather than passing through a network first, which means you can afford to hand some of it back — a discount for paying directly, credit towards next time — and that is what persuades the next customer. The flywheel is the same. It just starts on your side of the counter.