Authorization is the instant back-and-forth that happens when you tap or enter a card. The merchant's side asks the cardholder's bank, in real time, whether the card is valid and has enough room for this specific amount. If the answer is yes, the bank places a temporary hold on the funds and sends back an approval code. No money has actually moved at this point; it is purely a message exchange, and the real transfer of funds happens later during clearing and settlement.
In a flow
When a customer taps to pay, the acquirer routes an authorization request through the card network to the issuer, which approves or declines and places a hold on the cardholder's available balance. This approval is what lets the merchant hand over the goods, even though the actual money typically arrives days later.
Common misconceptions
Myth: When my card is approved, the merchant has been paid.
Reality: Approval only confirms the card is good and places a hold. The merchant typically receives the actual funds days later, after clearing and settlement.
Myth: An authorization hold permanently takes the money out of my account.
Reality: A hold reduces your available balance temporarily. If the charge is never captured, the hold is released, often within a few days depending on the issuer.
Related terms
See it in a guide
Sources
- Visa Core Rules and Visa Product and Service Rules ↗ · Visa (operator). Describes the authorization request and response flow between acquirer and issuer.
- Mastercard rules and standards ↗ · Mastercard (operator)
Educational, plain-English explainers. Not legal, compliance, tax, or financial advice. These cover fundamentals, not current fees, limits, or rates (which change). Rails and parties vary by program and country, so verify specifics against primary sources. Last reviewed June 2026.