Send payments to the address on your statement or bill
American Express prints a specific mailing address on every monthly statement you receive. This is the address where you should send your payment by mail. The address appears near the payment section of your bill, usually labeled "Payment Address" or "Mail Payments To."
Do not mail payments to the customer service address or the address listed for correspondence. American Express routes mail payments through a lockbox — a third-party processing center — and using the wrong address delays your payment by several days or longer. Your statement is the authoritative source for where your specific payment should go.
If you have lost your statement or cannot locate the mailing address, you can call the customer service number on the back of your card. A representative will provide the current payment address for your account. Keep in mind that American Express occasionally changes lockbox addresses, so always verify the address on your most recent statement before mailing a check.
Key Takeaways
- The correct mailing address for your American Express payment appears on your monthly statement, not on the back of your card or on the company website.
- American Express uses a lockbox service to process mailed payments, and sending your check to any other address will delay posting to your account.
- If you cannot find your statement, call the customer service number on your card to confirm the current payment address before mailing.
- Mailed payments typically take 5 to 7 business days to post after American Express receives them, so plan ahead if your due date is approaching.
- Consider setting up automatic payments or paying online through your account to avoid mailing delays and missed due dates.
How long mailed payments take to post
A check mailed to American Express usually arrives at the lockbox within 3 to 5 business days, depending on your location and mail service. Once received, American Express typically posts the payment to your account within 1 to 2 business days. This means a payment mailed today may not show on your account for up to 7 business days.
American Express considers a payment on time if it is postmarked by the due date, not if it arrives by the due date. However, you should not rely on this timing. If your due date is fewer than 7 days away, mailing a check creates a real risk of a late payment. Late payments trigger a fee and may affect your credit score.
What information to include with your payment
Write your account number on the check itself, in the memo line. This helps American Express match the payment to your account if the envelope is separated from the check during processing. Your account number appears on your statement and on the front of your card.
Include the payment stub that came with your statement if you received one. The stub contains a barcode or account identifier that speeds up processing. If you do not have the stub, the check alone with your account number written on it will still post correctly, but processing may take slightly longer.
Do not send cash, and do not mail multiple checks in one envelope unless they are for different accounts. Use a standard envelope and first-class mail. Do not use certified mail or require a signature — these methods can delay processing at the lockbox.
Lockbox addresses vary by card type and region
American Express operates multiple lockboxes across the United States. The specific address where your payment should go depends on your card type and, sometimes, your billing address region. This is why the address on your statement is the only reliable source.
If you have more than one American Express card, each card may have a different mailing address. Check the statement for each card separately before mailing. Sending a payment to the wrong lockbox will not result in a lost payment — American Express will eventually route it correctly — but it will add days to the posting time.
Faster alternatives to mailing a check
American Express offers several payment methods that post faster than mail. You can pay online through your account at americanexpress.com, by phone at the number on your card, or through the American Express mobile app. Online and phone payments typically post the same business day or the next business day.
You can also set up automatic payments so your full balance, minimum payment, or a fixed amount is paid on a date you choose each month. Automatic payments eliminate the risk of missing a due date and remove the need to mail a check. You can change or cancel automatic payments at any time through your online account.
If you prefer to mail a check but want faster processing, ask American Express whether your account is set up for electronic check conversion. Some accounts allow American Express to convert a mailed check into an electronic payment, which posts within 1 to 2 business days instead of 5 to 7.
What to do if your mailed payment is lost
If you mailed a check more than 10 business days ago and it has not posted to your account, contact American Express when ready. Have your check number, the amount, and the date you mailed it ready. A representative can search the lockbox records to see whether the payment was received.
If the check was received but not posted, American Express can manually explore it to your account. If the check was never received, you will need to stop payment on the original check through your bank and send a replacement payment by a faster method, such as online or phone payment.
Do not wait until after your due date to report a missing payment. If a check is lost and your account shows a late payment, contact American Express to explain the situation. Some representatives can remove a late fee if you can show that you mailed the payment on time.
Frequently Asked Questions
Can I mail a payment to an American Express store or office?
No. American Express does not accept mailed payments at retail locations or corporate offices. You must use the lockbox address printed on your statement. Payments sent to any other address will be delayed or returned.
What if the address on my statement is different from last month?
American Express occasionally changes lockbox addresses. Always use the address on your most recent statement. If you have an older statement, do not rely on it. Call the number on your card to confirm the current address before mailing.
Do I need to include an envelope with my payment?
No. You do not need to include a return envelope. straightforward place your check and payment stub (if you have one) in a standard envelope and mail it to the address on your statement. A stamp is required.
Will my payment post if I mail it without the payment stub?
Yes. Your payment will post even without the stub, as long as your account number is written on the check. The stub speeds up processing, but it is not required. Processing may take an extra day or two without it.
Can I mail a payment from outside the United States?
International mail to a U.S. lockbox is slow and unreliable. If you are outside the United States, pay online, by phone, or through the American Express app instead. These methods work from any country and post much faster than international mail.