Card machine chargebacks are the one part of taking payments in the UK that can pull money back out of your account without asking you first. You get an email, the money has already gone, and there’s an admin fee sitting on top of it. Most people’s first one turns up with no warning and no explanation they can follow. Here’s what’s actually happening, and how you fight it.

A chargeback and a refund are not the same thing

A refund is your decision. You press refund on the terminal, the customer gets their money, and you’ve kept the relationship. Your terms, your timing.

A chargeback skips you completely. The cardholder rings their bank instead of you, the bank claims the money back through the card scheme, your provider takes it off your account, and you find out afterwards. Debit first, argue later. That’s the bit that catches people out: the funds go before anyone has looked at your side of it.

From there you’ve got two options. Accept it, and the money stays with the customer. Or defend it, which means submitting evidence for the issuing bank to weigh up. The issuer decides, not your provider and not you. If it’s still contested after that, it can go to scheme arbitration, which takes longer and can cost more.

There’s a record left behind, too. Providers watch the ratio of disputes to transactions on an account, and a run of them can mean held funds, a rolling reserve, or in bad cases the account being closed. One chargeback is a bad day. A pattern is a problem worth fixing at the source. And while the money’s in dispute it isn’t in your bank, which is a different problem from your normal settlement time but hits the same balance.

What triggers card machine chargebacks in the UK

Every chargeback arrives with a reason code. It’s a short label from the card scheme telling you which argument the bank is making, and it decides what evidence will count. Four of them cover most of what a small business sees.

Fraudulent or unauthorised transaction. The cardholder says they didn’t make the payment. Stolen card, cloned details, or someone in the household using it without asking. This is the one where how you took the payment decides everything.

Goods or services not received. They paid, and as far as they’re concerned nothing turned up. Common on deposits, pre-orders, made-to-measure work and anything with a long lead time.

Duplicate or incorrect amount. The card got tapped twice, a tip went on twice, or someone keyed £450 instead of £45. Easy to spot, easy to prove, and your own end-of-day totals usually settle it.

Quality dispute. Not as described, or faulty. They got it, they’re not happy, and they went to the bank instead of coming back to you.

There’s a fifth that isn’t really a category: “I don’t recognise this.” The customer genuinely bought from you, saw a name on their statement they’d never heard of, and reported it as fraud. That one’s almost entirely preventable, and we’ll come back to it.

How you took the payment decides whether you’re liable

This is the part that actually costs or saves you money, and hardly anyone gets told it at sign-up.

Chip-and-PIN, card in your machine. The card was physically there and the cardholder proved who they were with a PIN. On a fraud reason code, liability typically shifts to the bank that issued the card, so most of these either never reach you or are straightforward to defend. That shift is the whole reason chip-and-PIN exists, and it’s been the way UK card payments work for years.

Contactless. The card was present, but below the contactless limit there’s usually no PIN, so there’s less proof of who was holding it. Fraud disputes on contactless are typically harder to defend than a PIN transaction. Scheme rules vary here and they change, so ask your provider where you actually stand.

Keyed in, or taken over the phone. This counts as card-not-present, whatever it feels like at your end. Numbers read out down the phone, typed into the terminal from a booking form, copied off a text message: in most cases the fraud risk sits with you, and “they told me the number themselves” isn’t a defence.

So a portable machine you carry out to the customer does two jobs at once. It saves the phone call. And it keeps the fraud risk off you, which never shows up on a rate comparison but shows up here. If you’re keying deposits in by hand most weeks, price that in.

The clock: theirs is long, yours is short

Cardholders get a generous window. Depending on the reason code and the scheme it’s commonly up to around 120 days from the transaction, and for goods that never arrived the clock can start from the date delivery was due rather than the day they paid. A deposit you took in January can land on your desk in May.

Your window is nothing like that. Once your provider notifies you, the time to respond is usually measured in days, and the notice states the exact date. Miss it and the case closes against you. No appeal, no “I was on holiday”.

Two practical things follow. First, make sure that notification goes to an email address you read every day, not the one you used to sign up three years ago. It’s the most common way a winnable dispute gets lost. Second, keep records where you can grab them in ten minutes. Limited companies generally keep accounting records six years anyway, so filing terminal receipts with the invoice costs nothing and saves a scramble later.

Resolution itself is slower than either window suggests. Weeks is normal. Arbitration is longer. Plan around the money being gone in the meantime, especially if the amount was big enough to matter to next month’s cashflow.

The evidence pack that actually wins

You’re not writing a letter of complaint. You’re answering one specific reason code with documents, and anything that doesn’t speak to that code is noise the reviewer has to wade through.

The terminal receipt. Your merchant copy showing the transaction was card-present and PIN-verified is the strongest single document you can send on a fraud claim. If your receipts are faded thermal paper in a drawer, photograph them or pull the detail from your provider’s portal.

Proof they got it. Signed docket, delivery note, courier tracking with a signature, or timestamped photos of the finished job. For services, a signed job sheet does the same work.

What they agreed to. The quote or order they accepted, your terms covering deposits and cancellations, and anything showing they saw the lead time before they paid rather than after.

The message trail. Emails, texts, WhatsApp, booking confirmations, dates visible. A customer claiming nothing ever arrived reads very differently next to their own message thanking you for it.

Put it in one PDF, in order, with two lines at the top saying what the transaction was and why the claim is wrong. Blank out everything but the last four digits of any card number while you’re at it, because emailing full card details around is exactly the habit PCI DSS exists to stop.

Be honest about the ones you’ll lose, as well. If the customer has a fair point, refunding early is cheaper than the fee plus a fortnight of admin. And a strong pack still doesn’t guarantee a win. The issuing bank decides, outcomes vary, and anyone promising you a result hasn’t done many of these.

The prevention that costs you nothing

Fix your statement descriptor first. That’s the name showing up on your customer’s bank statement. If it’s a limited company name nobody’s heard of instead of the name above your door, you’ll collect “I don’t recognise this” disputes from people who were perfectly happy with what they bought. Ask your provider what yours currently says and get it changed to your trading name. Some let you add a phone number, which turns a would-be dispute into a phone call.

Take deposits properly. Card in the machine wherever you can manage it. Written terms saying what’s refundable and what isn’t, agreed before the money moves, and a realistic date for the work. A deposit taken over the phone with nothing in writing is about the most disputable payment in trade work.

Describe things accurately. Photos that match what turns up, honest lead times, sizes that are the actual sizes. Most quality disputes trace back to an expectation nobody wrote down.

Answer the phone. Plenty of chargebacks start with a customer who tried you twice and gave up. The bank is what they do when they can’t reach you. A same-day reply prevents more disputes than any evidence pack ever wins back.

Why the dispute team beats a fraction of a percent

Rates get all the attention because the rate is the number on the front of the deal. The dispute process is buried in the fees schedule, and it’s the part you’ll care about at 7pm on a Friday when £600 has vanished.

Worth asking before you sign: how do they tell you about a dispute, email or do you find it yourself on a statement? How many days do you get to respond? Is there a portal to upload evidence, and a person to ring? And what’s the per-case fee, win or lose?

That fee is written into your merchant agreement along with everything else buried in the contract. Find it now, before you need it. It’s typically a flat amount per case rather than a percentage, which means a dispute on a small sale can cost more to fight than the sale was ever worth. That maths should shape whether you defend or just accept.

And if your provider handles disputes badly, being on a no long contract deal is what lets you do something about it. A lot of the market still ties you in for three to five years, which is a long time to sit through bad service after a bad week. Providers without the long tie-in are still out there.

FAQs

How long do card machine chargebacks take to sort out in the UK?

Usually weeks rather than days once you’ve submitted your evidence, and longer again if the case goes to arbitration. Your provider should give you a rough timescale when they notify you. The money stays out of your account until it’s settled either way.

Can I just refund the customer to make it go away?

Not once the chargeback has been raised. You’d risk paying twice, once through the refund and once through the dispute. Ring your provider first. They’ll tell you where the case has got to and whether a refund still helps.

Do I get the admin fee back if I win?

In most cases, no. It’s usually charged per case for handling it, whichever way the decision goes. That’s a big part of why preventing disputes beats winning them.

Does chip-and-PIN mean I’ll never get a chargeback?

No. It typically protects you on fraud claims, because the cardholder was verified at the terminal. But “goods not received” and quality disputes can still be raised against you, and those are won with paperwork rather than with the way you took the payment.