Finance
How does a payment gateway work?
A payment gateway securely handles online card payments. When you check out, it encrypts your card details, sends them to be authorized by the banks, and returns an approval or decline — all in seconds — so the store never directly handles your raw card data.
See it in motion.
Watch a 2-minute animated lesson that shows exactly how a payment gateway works.
Step by step
- 1It securely processes online card payments.
- 2It encrypts and forwards card details for authorization.
- 3Banks approve or decline within seconds.
- 4It shields merchants from handling raw card data.
Frequently asked questions
- How does a payment gateway work?
- It encrypts your card details, routes them to the banks for authorization, and returns an approval or decline.
- Is a payment gateway the same as a payment processor?
- Closely related — the gateway captures and secures the data; the processor moves the money between banks.
- Why are payment gateways secure?
- They encrypt data and meet strict security standards (like PCI DSS) so card details stay protected.