---
type: help
title: "Can I use an American Express card if it has 15 digits instead of 16?"
description: "American Express cards use a 15-digit number instead of the 16 digits on Visa and Mastercard, which can trip up a checkout form built for 16. If your AMEX"
resource: https://www.4over4.com/help/site-wide/can-i-use-an-american-express-card-if-it-has-15-digits-instead-of-16
tags: ["Products", "help"]
timestamp: 2026-07-20T18:54:40.856Z
---

# Can I use an American Express card if it has 15 digits instead of 16?

American Express cards use a 15-digit number instead of the 16 digits on Visa and Mastercard, which can trip up a checkout form built for 16. If your AMEX

Part of the **Products** hub. See [all help concepts](index.md).

- Page type: help
- Hub: Products
- URL: https://www.4over4.com/help/site-wide/can-i-use-an-american-express-card-if-it-has-15-digits-instead-of-16