The Index

Updated monthly

The UK Small Business Payment Fees Index

The only independent monthly tracker of what real UK small businesses are actually paying in card machine fees. Not marketing rates. Not best-case scenarios. Real numbers from real statements.

April 2026 data
Real survey responses
100% independent
April 2026 — Key Numbers
Average transaction fee
1.73%
↑ from 1.68% in March
Paying unexpected fees
34%
↑ from 29% in March
Average overpayment vs best rate
£412
per year
Most used provider
SumUp
38% of respondents

Where this data comes from

I built the index because I was frustrated that small businesses had no way of knowing whether their card machine fees were higher than average. Every month I go and find out.

01
I send the survey

Every month a short survey goes out to small business owners across England. Four core questions plus a fresh theme each month. Takes under two minutes to complete.

02
Real businesses respond

Plumbers, café owners, market traders, mobile beauty therapists — real businesses reporting what's on their actual statements. Not estimates. Not marketing materials.

03
I publish the findings

Every month the results are compiled and published here. Subscribers get the findings before anyone else. The data is free and open for anyone to use.

What the data is telling us this month

1.73%
Average transaction fee across all respondents

Up from 1.68% last month. Sole traders are paying the highest average at 1.81% while limited companies are negotiating better rates averaging 1.61%.

34%
Paying fees they did not expect

Over a third of small businesses surveyed this month reported at least one fee on their statement they were not told about when they signed up. Monthly minimums and PCI compliance charges are the most common surprises.

£412
Average annual overpayment vs best available rate

Based on each respondent's reported turnover and transaction fee, the average small business is paying £412 more per year than they would on the best currently available rate.

67%
Have never compared their fees against alternatives

Two thirds of respondents have never actively compared their current fees against what else is available. Most assumed switching would be too complicated or not worth the saving.

The hidden fees small businesses are actually finding

This month's survey asked: "Did you encounter any unexpected fees last month?" Here are the most commonly reported surprises.

📋
Monthly minimum service charge

If you don't process enough volume in a month, some providers charge a minimum fee regardless. Commonly reported by seasonal businesses and part-time sole traders.

£15-25/mo
🔒
PCI compliance fee

An annual security certification charge. Often buried in small print. Several respondents reported discovering this for the first time on their 12-month anniversary statement.

£40-60/yr
💳
Terminal rental fee

Some providers advertise "free card reader" but charge a monthly rental for countertop terminals. Commonly reported by café and retail businesses who opted for a fixed terminal.

£15-30/mo
↩️
Chargeback fee

When a customer disputes a payment, providers charge a fee per dispute regardless of the outcome. Few respondents knew this fee existed before they were charged it.

£15-25 each