banking.foundation / Standards / ISO 8583
Standard · Cards · ISO
ISO 8583
ISO standard for financial transaction card originated messages, defining the bitmap-based message format used to authorize, clear and settle card payments. It underpins most ATM and card-network authorization traffic worldwide.
- Category
- Cards
- Steward organization
- ISO
- Scope
- Card-originated financial transaction messages
- Status
- Active
- Machine-readable
- Primarily documentation for humans
- Official source
- www.iso.org
Related — Cards
This standard belongs to ISO. Banking Foundation documents it for reference with attribution and links to the official source — always rely on the steward's current text.
Approximate reference data from public sources · seed-0.1 · 2026-08-28 · not real-time, not advice. See data & methodology.
# this page as data
GET https://banking.foundation/api/v1/standards/iso-8583