One-Click Checkout

One-Click Checkout enables purchases with a single action. No cart review, no address entry, no payment forms. Click once, purchase complete. Amazon pioneered this with their patented "1-Click" ordering.

What is One-Click Checkout?

One-click checkout eliminates the entire checkout process. Customers with saved payment and shipping information can complete a purchase instantly.

Requirements:

Customer must have an account
Payment method saved on file
Default set
Often limited to returning customers

One-Click vs Express Checkout

One-click checkout:

Literally one click to purchase
Uses stored defaults without review
Highest speed, lowest friction
Higher risk of accidental purchases

2-3 steps (authenticate, confirm)
May allow changing options
Still fast, more control
Lower risk of mistakes

History and Patents

Amazon patented one-click ordering in 1999 and defended it aggressively. The patent prevented competitors from implementing true one-click purchasing for nearly 20 years.

Patent expired in 2017. Since then, more retailers have implemented one-click functionality.

Benefits of One-Click Checkout

Reduced friction: Every step in checkout loses customers. Zero steps loses none.

Impulse purchases: captures buying moments before doubt sets in.

Mobile optimization: Typing checkout details on mobile is painful. One-click eliminates it.

Repeat purchases: Particularly valuable for repeat-purchase businesses (consumables, subscriptions).

Implementation Considerations

Accidental purchases: Without confirmation, mistaken clicks cause problems. Consider:

Clear "undo" option immediately after purchase
Easy cancellation process
Confirmation email with cancel link

Shipping flexibility: What if the customer wants different shipping? Provide easy ways to modify after purchase.

Security: Saved payment info requires robust security. PCI compliance is mandatory.

Guest users: One-click only works for logged-in users with saved info. Most first-time visitors can't use it.

Best Practices

Offer easy order modification. Users should be able to change or cancel quickly.
Show confirmation. Even if instant, display clear purchase confirmation.
Prominent placement. Put one-click buttons where users expect to buy.
. One-click has the biggest impact on mobile.
Combine with traditional checkout. Always offer a full checkout alternative.