Step one: gather and total
Take three consecutive monthly statements. Add every charge on each: processing, authorisation, terminal rental, PCI, minimum monthly, gateway and any admin fees. Then total the card turnover for the same period.
Step two: calculate the effective rate
Divide total charges by total turnover. That single percentage is your real cost. Compare it against your quoted headline rate — the gap is usually larger than merchants expect.
Step three: challenge the extras
Ancillary fees are the easiest to remove because they are pure margin. Non-compliance fees, admin charges and minimum monthlies are all negotiable, and providers routinely drop them when challenged with a credible alternative quote.
Want this reviewed for your business?
Send us a recent bill and a consultant from our Cardiff office will tell you, honestly, whether you are paying more than you need to.