Hidden card machine fees: everything that is not in the headline rate
Last updated: August 2026 · Rates checked: August 2026
Quick answer: the headline percentage is rarely the whole bill. PCI fees, minimum monthly service charges, authorisation pennies, statement fees, chargeback fees, terminal return charges of £150 to £300 and exit fees that can exceed £1,500 all live in the small print. Every one of them is either avoidable or negotiable, and the table below shows how.
When a provider quotes you “1.4%”, they are quoting one line of a statement that will contain six or seven. None of the extra lines is illegal or even unusual; the trick is that they are priced separately precisely so the headline number stays small. This guide lists every fee we see on UK merchant statements and contracts, what it typically costs based on the figures we have published across our provider and cancellation guides, and the specific step that avoids each one. If you want to see what these fees do to a real bill, our statement-reading walkthrough works a full example where a contracted 1.49% turns into a true 1.87%.
The full table
| Fee | Typical range | How to avoid it |
|---|---|---|
| PCI compliance fee | £5-£15/month | Ask for it to be included in your rate; some providers bundle it free |
| PCI non-compliance fee | £20-£50/month | Complete the annual self-assessment questionnaire; the charge stops |
| Minimum monthly service charge | £20-£50/month | Match the pricing model to your volume; PAYG readers have no minimums |
| Authorisation fees | Pennies per transaction | Ask for the per-transaction pence in writing and include it when comparing quotes |
| Statement / paper billing fee | £5-£10/month | Switch to online statements, or ask for the fee to be waived |
| Chargeback fee | £15-£25 per dispute | Keep receipts and delivery evidence; contest weak disputes promptly |
| Terminal return fee | £150-£300 at contract end | Return rented hardware promptly and tracked; late returns can add £50+ a week |
| Early termination fee | ~£200-£1,500+ by provider and time left | Prefer 12-month or rolling contracts; diarise the notice window before auto-renewal |
| Annual PCI fee | £50-£100/year | Ask whether it applies on top of the monthly PCI fee before signing |
The monthly drips: PCI, minimums and pennies
The PCI compliance fee, typically £5 to £15 a month, pays for the security compliance programme every card-taking business must follow. It is legitimate, but it is also negotiable: some providers include it in the rate. The genuinely wasteful version is the non-compliance fee of £20 to £50 a month, levied when the annual self-assessment questionnaire sits unanswered in an inbox. At £50 a month that is £600 a year for not filling in a form. Check your last statement now; this one hides in plain sight for years.
The minimum monthly service charge works like a quiet-month tax: if your percentage fees fall below a floor of typically £20 to £50, the provider tops them up to it. A seasonal business paying a £40 minimum through three quiet winter months hands over money for transactions that never happened. Pay-as-you-go readers have no minimums, which is one reason the crossover arithmetic favours them below roughly £4,000 to £5,000 a month of card turnover.
Authorisation fees are the pennies charged each time the terminal requests approval. A few pence sounds like nothing; across 620 transactions at 3p it is £18.60 a month, £223.20 a year, and it appears in no headline quote. Always ask for the authorisation pence in writing when comparing offers. Our authorisation fees explainer works the full arithmetic and covers the pricing models that charge no authorisation fee at all.
The exit costs: where the real money hides
The largest hidden fees only surface when you try to leave. From our cancellation guides, which document each provider’s terms in detail: Worldpay early termination fees scale from around £200 with under six months remaining to £1,500 or more with over two years left, plus a £150 to £300 terminal return charge (see how to cancel Worldpay). Elavon exit fees typically run £250 to £800 with a £150 to £250 equipment return fee (how to cancel Elavon). Lloyds Cardnet, whose contracts run 36 to 60 months, commonly quotes £500 to £1,500 (how to cancel Lloyds Cardnet).
Three mechanics make exit fees worse than they look. First, notice periods: 90 days of written notice is standard, and the clock only starts when the provider logs the letter, so you pay for three more months whatever you do. Second, auto-renewal: many agreements roll into a fresh 12-month term if you miss the cancellation window, resetting the exit fee. Third, late equipment return: rented terminals sent back late can incur additional charges of £50 or more per week. None of this is hidden from the contract, only from the sales conversation. The defence is boring and effective: prefer 12-month or rolling contracts, put the notice window in your calendar the day you sign, and send hardware back tracked.
What a clean deal looks like
Hidden fees are not inevitable. Zettle and Tyl charge a flat 1.75% with no monthly, PCI or exit fees at all. Dojo prices bespoke, typically 1.2% to 1.9% depending on card turnover with terminal rental from £20 a month (we have seen quotes as low as 0.29% for high-turnover businesses; your quote depends on turnover, card mix and average transaction value), and charges no setup or exit fees on 12-month or rolling contracts. Negotiated acquirer deals in the 1.2% to 1.9% range with £10 to £60 a month of fixed fees can be excellent value at volume, provided you know exactly which fixed fees are in the £10 to £60. The test for any quote is simple: ask for the all-in monthly cost at your turnover, in writing, then divide it by your turnover and compare effective rates. If a salesperson will not put the extras in writing, that tells you what you need to know. And if your current bill already has several of these lines on it, our diagnostic on why your card machine bill is so high ranks them by cost and fixes each one.
Get a quote with nothing hidden
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Frequently asked questions
What are the most common hidden fees on UK card machines?
The usual suspects are the PCI compliance fee (£5 to £15 a month), the PCI non-compliance penalty (£20 to £50 a month), minimum monthly service charges (£20 to £50), authorisation fees of a few pence per transaction, statement fees (£5 to £10 a month), chargeback fees (£15 to £25 each), terminal return fees (£150 to £300) and early termination fees that run from around £200 to £1,500 or more.
What is a PCI non-compliance fee and can I avoid it?
It is a monthly penalty, typically £20 to £50, charged when you have not completed your provider’s annual PCI DSS self-assessment questionnaire. It is entirely avoidable: complete the questionnaire, which usually takes under an hour, and the charge stops. Check your statement, because many businesses pay it for years without noticing.
Do pay-as-you-go card readers have hidden fees?
Far fewer. Flat-rate readers such as Zettle and Tyl charge 1.75% per transaction with no monthly fee, no PCI fee and no exit fee, which is why they suit lower volumes. The trade-off is the higher headline rate: above roughly £4,000 to £5,000 a month of card turnover, negotiated pricing usually works out cheaper even after the fixed fees.
How much are early exit fees on card machine contracts?
It varies widely by provider and time remaining. From our cancellation guides: Worldpay exit fees range from around £200 with under six months left to £1,500 or more with over two years remaining; Elavon typically charges £250 to £800; Lloyds Cardnet £500 to £1,500. Terminal return fees of £150 to £300 usually come on top. Some providers, notably Dojo, charge no exit fees at all.