How a one-click payment works
On a first purchase the customer agrees to save the payment method. The merchant's provider replaces the card number with a token and keeps the scheme's reference to that first, authenticated payment. On the next visit the customer signs in, sees the saved card and confirms.
The payment is sent as a cardholder-initiated transaction on a stored credential. The Visa Core Rules of 18 April 2026 require a merchant to validate the cardholder's identity, for example with a login ID and password, before processing such a transaction (5.8.11.1).
One click and strong customer authentication
One click for the customer does not always mean no authentication. The issuer may approve the payment under an exemption, such as the low-value or the transaction risk analysis exemption, or may ask for a challenge.
Wallets reach the same experience by another route. With Apple Pay or Google Pay the customer confirms with a fingerprint or a face check on the device, and no card form appears at all.
Why one-click payments matter
Each field removed from a checkout raises the share of buyers who finish. The costs are an agreement with each customer to store the card, account security strong enough that a stolen login is not a stolen card, and tokens that keep working when a card is reissued.
One-click payment, MIT or guest checkout?
- Merchant-initiated transaction
- The merchant charges the saved card with no customer present, under a prior agreement. A one-click payment needs the customer's click.
- Guest checkout
- Nothing is saved, and the customer types the payment details each time.
Where a one-click payment shows up in a platform
Modules that do the work
- CheckoutA hosted checkout for cards, wallets, bank payments and crypto, routed to the best provider.
- AuthenticationSign-in, passkeys and second factors for customers and staff, on your identity provider or ours.
- Fraud & riskReal-time fraud scoring, limits and case management, with the risk engines you already trust.
Platforms that need it
Where it is written
The laws and standards this page's facts come from.
General information, not legal advice: what applies to you depends on your services and your market.