Payments
Issuer (issuing bank)
Updated
The issuer, or issuing bank, is the bank that gave the customer their card; it approves or declines each payment and handles the cardholder's disputes.
Every card has an issuer: the bank or card company that opened the account, set the limit and holds the cardholder relationship. When a payment is attempted, the request travels from the merchant's acquirer over the card network to the issuer, which decides to approve or decline and picks the response code.
The issuer is also where disputes start. A cardholder who does not recognise a charge calls the issuer, which files the chargeback through the network. For Visa and Mastercard the issuer is a separate bank; for American Express the network itself is often the issuer.
Most of what merchants call decline reasons are the issuer's choices: its fraud models, its rules on online or foreign payments, and its requests for 3D Secure. That is why the same card can be approved at one store and declined at another.
Frequently asked questions
- Is the issuer the same as the card network?
- Not for Visa and Mastercard: the network carries the payment and the issuing bank decides it. American Express and Discover often act as both network and issuer.
- Why does the issuer decline payments?
- Because of the account (low funds, closed, blocked), the card details (wrong expiry or CVC), or the issuer's own risk rules. It reports the reason in a response code, sometimes only as a generic do not honor.
Sources
- How cards work — Stripe
- Card verification checks — Stripe