How to Reduce Card Processing Fees in the UK
Most UK businesses that compare providers or renegotiate cut their card processing costs by 20-30%.
Start with your effective rate: total monthly card charges ÷ card turnover. A business paying £220/month on £10,000 of card sales is at 2.2%. Moving to a negotiated 1.5% plus £20/month rental cuts that to £170/month, saving £600/year.
Then strip the waste: PCI non-compliance charges, minimum monthly service charges and stale terminal rental are the three statement lines that quietly inflate the bill.
Rates checked: August 2026
Six Steps, in Order
1. Work out your effective rate
Take one monthly statement and add up everything: transaction fees, terminal rental, PCI charges, minimum service charges, authorisation fees (which flat-rate and blended pricing skip entirely). Divide by that month's card turnover. £220 of charges on £10,000 of card sales = 2.2% effective. Until you know this number, every quote you receive is incomparable.
2. Compare at your real volume, not the headline rate
Below roughly £4,000-£5,000/month in card sales, a no-monthly-fee reader (SumUp at 1.69% flat, or Square and Zettle at 1.75% flat) is usually cheapest. Above it, a negotiated rate plus monthly fee usually wins. The full arithmetic is on our card machine rates page, and our small-business card machine guide walks through worked examples at £3,000 and £10,000 a month.
3. Negotiate, or switch
Bespoke pricing moves with card turnover: Dojo, for example, typically prices at 1.2% to 1.9% depending on volume, and we have seen quotes as low as 0.29% for high-turnover businesses (your quote depends on turnover, card mix and average transaction value), with terminal rental from £20/month. If your turnover has grown since you signed, you are probably still paying your old rate. Get two or three quotes and show your current provider. Businesses that do this typically end up 20-30% better off, whether they switch or their incumbent matches.
4. Kill PCI non-compliance fees
Traditional acquirers add a monthly non-compliance charge when you haven't completed your annual PCI DSS self-assessment. Completing it is normally free or a small admin task, so this line on your statement is pure waste. Check your statement; if it's there, complete the attestation and make the charge stop.
5. Watch minimum monthly service charges
Some contracts bill a top-up whenever your transaction fees fall below a set monthly floor. If your volume is seasonal or has dropped, you may be paying for processing you don't use. Flat-rate readers with £0 monthly fee have no minimums at all. See our no-monthly-fee card machine guide for when that trade makes sense.
6. Check what your terminal rental actually buys
Terminal rental from a modern provider starts around £20/month. If you're paying substantially more per terminal on an old agreement, or renting hardware a £0/month reader would replace, that's an immediate, contract-renewal-day saving. Count terminals: multi-device sites often rent more units than they use.
Where the Savings Come From
| Action | What changes | Saving at £10,000/month card sales |
|---|---|---|
| Renegotiate 2.2% effective down to ~1.7% effective | £220/month becomes £170/month | £50/month (£600/year) |
| Complete PCI attestation | Monthly non-compliance charge removed | Whatever the charge line shows (it should be £0) |
| Remove an unused rented terminal | One rental line (from £20/month) deleted | £240+/year per terminal |
| Low volume? Move to a £0/month reader | Rental, PCI and minimum charges all disappear; you pay 1.69%-1.75% flat | Wins below ~£4,000-£5,000/month, not at £10,000 |
Assumptions: £10,000/month card turnover; current cost £220/month (2.2% effective); negotiated example 1.5% + £20/month rental = £150 + £20 = £170/month. Combined, savings of this kind are how the typical 20-30% reduction is reached. Your figures will differ, which is the point of step 1.
The Whole Method in One Worked Example
Assumptions: shop taking £10,000/month by card, currently paying £185 in transaction fees, £25 terminal rental and £10 in other monthly charges.
A quote nearer the bottom of the typical 1.2%-1.9% bespoke range (1.2% = £120 + £20 = £140/month) would push the saving to £80/month, £960/year, a 36% reduction. That spread is why the typical outcome lands in the 20-30% band.
Common Questions
How much can a UK business save on card processing fees?
Businesses that compare providers or renegotiate typically save 20-30% on their total card processing costs. Worked example: a business taking £10,000/month by card with £220/month in total fees (a 2.2% effective rate, including rental and extras) that moves to a negotiated 1.5% rate with £20/month terminal rental would pay £150 + £20 = £170/month, a saving of £50/month, or £600/year (about 23%).
What is an effective rate and how do I calculate it?
Your effective rate is everything you pay for card processing in a month (transaction fees, terminal rental, PCI charges, minimum service charges and any extras) divided by your card turnover. Example: £220 of total charges on £10,000 of card sales is a 2.2% effective rate. It is the only number that lets you compare a flat-rate reader like SumUp at 1.69% or Square and Zettle at 1.75% against a bespoke quote fairly.
Should I switch to a no-monthly-fee card reader to cut fees?
Only if your card volume is below roughly £4,000-£5,000 a month. Under that, SumUp (1.69%, £0/month) or Square and Zettle (1.75%, £0/month) are usually cheapest. Above it, a negotiated rate usually beats a flat rate: typically 1.2% to 1.9% with turnover-priced providers like Dojo (we have seen quotes as low as 0.29% for high-turnover businesses), plus terminal rental from £20/month.
What hidden charges push up card processing fees?
The usual culprits on traditional acquirer statements are PCI non-compliance charges (levied monthly when you have not completed your annual PCI DSS attestation), minimum monthly service charges (billed when your transaction fees fall below a set floor), and terminal rental left running at old pricing. Completing PCI compliance is normally free or a small admin fee, so a non-compliance charge is pure waste, and each of these lines is visible on your monthly statement.
Want Steps 1-3 Done for You?
Send us a recent statement or just your monthly card takings. We'll calculate your effective rate and compare it against current quotes at your volume. Free, no obligation.
Check My RatesOr call: 0333 041 3933