Payments Glossary
A complete reference of payments terms from participant types to transaction processes.
IP Geolocation Check
An IP geolocation check compares transaction origin location against billing address and card data to identify geographic fraud signals.
Hosted Payment Page
A hosted payment page is served by the payment provider so card data never touches the merchant's servers, reducing PCI scope.
ISO 8583
ISO 8583 is the international standard for financial transaction message format used across card payment systems.
Buy Now Pay Later
Buy Now Pay Later (BNPL) lets consumers split purchases into installments at checkout via third-party providers.
NACHA
NACHA governs the ACH network in the US, setting operating rules for all ACH transactions.
Blended Pricing
Blended pricing is a flat-rate card acceptance model that combines interchange, scheme fees, and acquirer margin into one undifferentiated rate.
Payment Gateway
A payment gateway encrypts and transmits card data between checkout and the acquiring bank.
Payment SDK
A payment SDK provides pre-built libraries and UI components for integrating payments into web and mobile applications.
Interchange Fee
An interchange fee is paid by the acquiring bank to the issuing bank on every card transaction and is the largest component of card acceptance costs.