Payment application audit
An independent examination of a live payment application — how it authorises, captures, voids, refunds, and records the transactions you settle.
This is the engagement most payment operators ask for first. We audit the application that sits between the customer’s card, wallet, or account and the settlement file you send to an acquirer, a scheme, or a bank.
Fieldwork is built around actual production runs, not a vendor demonstration. We select a sample of authorisations, captures, voids, and refunds from the period under review, trace them through the application’s rules and logs, and test whether the amounts that left the application match the amounts that arrived in settlement — without an unrecorded bridge.
You receive a written view of the application’s fitness for the payment purpose named in the engagement letter, a schedule of findings ranked by effect on money movement, and a management note your operations and finance owners can act on before the next cycle.
The fee range above is a starting point for a single application and one defined period. Multi-merchant platforms, several acquiring banks, or a first-year engagement with incomplete logs are quoted separately in the scoping letter. We do not take payment on this website.