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Free tool

Payment authorisation rate calculator

Work out what share of your card payments get approved, what the declined ones were worth, and how much more you'd take if your approval rate went up. Free, no sign-up, nothing leaves your browser.

Your card, ready to use
  1. Your card appears in your app
  2. Tap it to pay in a shop
  3. See every payment as it happens

Use your own numbers for the same period, such as one month. Not every declined attempt is a genuine customer, and some customers pay again later, so treat the lost value as the most you could win back.

Your authorisation rate
92%
80 attempts declined
Value of declined attempts
£3,200.00
Extra approvals at 95%
30
Extra sales per period
£1,200.00
Over 12 periods
£14,400.00
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Why it matters

A payment authorisation rate is the share of card payment attempts that the customer's bank approves. If 100 customers try to pay and 92 payments go through, the authorisation rate is 92%. Every good payment that is declined is a lost sale, and some customers won't try again. Declines of genuine customers, often called false declines, can cost businesses more than fraud itself.

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Ways to improve it

Collect full, accurate billing details at checkout. Use card tokenisation or card updater services so saved cards stay current. Retry soft declines sensibly rather than straight away and repeatedly. Use a clear business name on statements so customers recognise the charge, and check decline codes to see which problems come up most.

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