Stripe decline codeStripe: incorrect_zip (billing postal code didn’t match)

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Why the ZIP fails, and the fix

1. 01

   The customer entered the wrong postal code

   “The customer needs to try again using the correct billing postal code.” Stripe, Decline codes (incorrect_zip)

   People often type their shipping or home ZIP when the card is billed to another address, such as a work card or a recent move. A clear message fixes most cases.

2. 02

   The form prefills or sends the wrong field

   A checkout that copies the shipping ZIP into billing_details, or a saved profile ZIP, sends a value the customer never checked. Let the customer see and edit the billing postal code, and pass it as billing_details.address.postal_code.

   // Stripe.js. Only pass billing_details if your Payment Element is set to
   // fields.billingDetails.address: 'never'; otherwise the element collects the postal code itself.
   const { error } = await stripe.confirmPayment({
     elements,
     confirmParams: {
       return_url: 'https://example.com/done',
       payment_method_data: {
         billing_details: { address: { postal_code: billingZip } }, // billingZip: from your form
       },
     },
   });
   if (error && (error.code === 'incorrect_zip' || error.decline_code === 'incorrect_zip')) {
     showMessage('Check the billing ZIP of your card.');
   }

3. 03

   You see a decline, but no incorrect_zip

   “A card issuer might still consider a payment that fails CVC or postal code verification legitimate, and therefore approve it.” Stripe, Radar rules

   Radar has rules that block payments when the postal code check fails. A payment blocked by a rule is a Radar block, not a bank decline, so check the payment’s Radar details in the Dashboard. Some banks approve a payment that fails the check, so a rule can block payments the bank would have accepted. Decide on the rule from your fraud rate.

4. 04

   A saved card has an old ZIP

   A saved card or wallet can carry the postal code from before a move. Let the customer edit the billing address or add the card again.

5. 05

   Cards from outside the US

   Postal codes outside the US have other formats, and some banks don’t check them at all. Don’t force a five-digit ZIP format on every card.

Checked against the vendor’s docs on November 9, 2026: Stripe docs: Decline codes; Stripe docs: Radar rules.

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Related: Stripe incorrect_cvc · Stripe card_velocity_exceeded · Stripe generic_decline · Stripe incorrect_number