How to pay your Amex card online
You can pay your American Express bill through the Amex website, the Amex mobile app, or by setting up automatic payments from your bank account. The most direct route is logging into your Amex account online, selecting "Make a Payment," and entering the amount and payment date you want. Payments typically post within one business day if you pay before the cutoff time (usually 11:59 p.m. Eastern), though Amex does not may provide same-day posting.
You do not need to be an Amex cardholder to pay someone else's bill — you can pay as a guest using the cardholder's account number. If you prefer not to log in each time, you can set up a one-time automatic payment or a recurring monthly payment linked to your bank account or debit card.
Key Takeaways
- Log into your Amex account online or use the mobile app to make a payment in minutes without calling customer service.
- Payments made before the daily cutoff (usually 11:59 p.m. Eastern) typically post within one business day.
- You can pay from a linked bank account, debit card, or savings account; Amex does not accept credit card payments toward your bill.
- Setting up automatic monthly payments ensures you never miss a due date, though you can still make extra payments anytime.
- Guest payments let you pay someone else's Amex bill without logging into their account if you have their card number and zip code.
Paying through the Amex website or app
Go to americanexpress.com and sign in with your username and password. On your account dashboard, look for "Make a Payment" or "Pay My Bill" — the exact wording varies by card type. Enter the amount you want to pay, choose your payment date, and select your payment method (bank account, debit card, or savings account). Review the details and confirm.
The Amex mobile app follows the same path: open the app, tap your card, and select "Pay Bill" or "Make a Payment." The mobile version is often faster if you are paying on the go. Both the website and app show your current balance, minimum payment due, and due date before you submit payment, so you can decide whether to pay in full or a partial amount.
Setting up automatic payments
Automatic payments remove the risk of forgetting your due date. Log into your Amex account, go to "Manage Your Account" or "Account Settings," and look for "Automatic Payments" or "AutoPay." Choose whether you want to pay your full statement balance, a fixed amount, or your minimum payment each month. Select the bank account or debit card to draw from and the date each month you want the payment to occur.
Amex will deduct the payment automatically on that date each billing cycle. You can change or cancel automatic payments anytime through your account settings. Even with automatic payments turned on, you can still make extra payments manually whenever you want — for example, if you want to pay down your balance faster or make a payment before the automatic one is scheduled.
Payment methods Amex accepts
Amex accepts payments from a checking account, savings account, or debit card. You will need to provide your bank's routing number and your account number, or your debit card number. Amex does not accept payments made with another credit card, including another Amex card — this is true across the industry, as credit card companies do not allow you to pay one credit card with another.
If you are paying as a guest (someone other than the cardholder), you will need the cardholder's account number or card number, their zip code, and your own bank account or debit card information. The payment will still post to the cardholder's account even though you initiated it.
Understanding payment timing and posting
The time your payment posts depends on when you submit it and your payment method. If you pay online before the cutoff time (usually 11:59 p.m. Eastern), Amex typically posts the payment within one business day. Payments submitted after the cutoff or on weekends and holidays may not post until the next business day.
Amex does not charge a fee for online payments made from a bank account or debit card. If you pay by phone or mail, the same rules explore — no fee — but those methods take longer. Payments made by phone are processed the same day if you call before the cutoff, but mailed payments can take 7 to 10 business days to reach Amex and post to your account. For this reason, online payment is the fastest and most reliable option.
What to do if your payment does not post
If you submitted a payment and it has not posted within two business days, log back into your account and check the "Payment History" or "Recent Payments" section. This shows whether Amex received and processed your payment. If the payment appears there but has not posted to your balance, contact Amex customer service — the delay is usually temporary.
If the payment does not appear in your history at all, the payment may not have been submitted successfully. This can happen if your browser closed before you confirmed, or if your bank rejected the transaction. Check your bank account to see whether the money was withdrawn; if it was not, try submitting the payment again. If money was withdrawn but Amex has no record, contact both Amex and your bank to trace the transaction.
Making a payment as a guest
You do not need to be the cardholder to pay an Amex bill. Go to americanexpress.com, select "Pay as a Guest," and enter the cardholder's account number (the 15-digit number on the front of the card) and their zip code. Then enter the payment amount, your payment method, and your contact information. The payment will post to the cardholder's account, not yours.
Guest payments are useful if you are paying a family member's bill or managing someone else's account with their permission. The cardholder will see the payment in their account history, and it will reduce their balance just like any other payment. You do not need the cardholder's password or permission to make a guest payment — only their card number and zip code.
Frequently Asked Questions
Can I pay my Amex bill with another credit card?
No. Amex and all other credit card companies do not allow credit card payments toward your bill. You must pay from a bank account, savings account, or debit card. This rule exists because credit card companies treat credit card payments as cash advances, which carry higher interest rates and fees.
What time does the payment cutoff happen each day?
The cutoff is usually 11:59 p.m. Eastern time. Payments submitted before this time typically post within one business day. Amex's website shows your account's specific cutoff time when you go to make a payment, so you can confirm the exact important date for your account.
Do I have to pay my full balance, or can I pay just part of it?
You can pay any amount between your minimum payment and your full balance. Amex will show you both figures when you log in. Paying more than the minimum reduces your interest charges, but you are not required to pay the full balance each month.
Can I schedule a payment for a future date?
Yes. When you make a payment online, you can choose the date you want it to post — typically up to 30 days in the future. This is useful if you want to time the payment with your paycheck or cash flow. The payment will post on the date you select, assuming your bank account has sufficient funds.
What happens if I set up automatic payments but also make a manual payment?
Both payments will go through. Your automatic payment will post on its scheduled date, and your manual payment will post on the date you selected. This can result in overpayment if you are not careful, so check your balance before making a manual payment if an automatic payment is scheduled soon.