What happens when you dispute an American Express charge
When you dispute a charge on your American Express card, you are telling American Express that a transaction is wrong — either you did not make it, the merchant charged you twice, the item never arrived, or the amount is incorrect. American Express then investigates by asking the merchant for proof that the charge was legitimate. If the merchant cannot provide that proof, or if American Express sides with you, the charge is removed from your bill and you get your money back.
The process takes time. American Express typically gives you a provisional credit within two to three business days while they investigate, but the full investigation can take 30 to 90 days. During that time, the charge stays on your account but marked as disputed, and you are not responsible for paying it.
You have 120 days from the date the charge appeared on your statement to start a dispute. This is longer than most credit cards allow, which is one advantage of American Express. However, the sooner you dispute, the sooner the investigation starts.
Key Takeaways
- You have 120 days from when a charge appears on your statement to dispute it with American Express.
- American Express usually gives you a provisional credit within two to three business days while they investigate the merchant's response.
- You can dispute a charge online through your American Express account, by phone, or by mail — online is fastest.
- The merchant has the chance to respond with proof the charge was correct, so disputes you lose are usually ones where the merchant has a signed receipt or delivery confirmation.
- If American Express rules against you, you can ask them to reconsider if you have new evidence.
How to start a dispute online
Log into your American Express account on the website or mobile app. Find the transaction you want to dispute in your statement or transaction history. Click on the charge and select "Report a Problem" or "Dispute This Charge" — the exact wording varies by device, but the button is always near the transaction details.
American Express will ask you to choose a reason: unauthorized charge, duplicate charge, amount incorrect, merchandise not received, merchandise not as described, or other. Pick the one that matches your situation. Then describe what happened in your own words. Be specific: if the item never arrived, say when you ordered it and when you expected delivery. If the amount is wrong, say what you were charged and what you should have been charged.
Submit the dispute. American Express will send you a confirmation number by email. Save this number — you will need it if you have to follow up. You should see a provisional credit in your account within two to three business days.
Disputing by phone or mail if you cannot go online
Call the number on the back of your American Express card and tell them you want to dispute a charge. Have your statement in front of you so you can give them the exact transaction date and amount. Explain the problem clearly. The representative will create a dispute case and give you a reference number.
If you prefer to dispute by mail, write a letter to American Express with your account number, the transaction date, the amount, and a clear explanation of why the charge is wrong. Send it to the address on your statement under "Disputes" or "Billing Inquiries." Keep a copy for your records. Mail disputes take longer — American Express may not receive your letter for several days, and they will respond by mail, which adds more time.
What American Express does while investigating
American Express contacts the merchant and asks them to prove the charge was correct. The merchant can respond with a signed receipt, a delivery confirmation, an email exchange showing you authorized the charge, or other documentation. If the merchant does not respond within a set time, American Express usually rules in your favor by default.
If the merchant responds with proof, American Express reviews it. They look for evidence that you authorized the charge and that the merchant fulfilled their part of the deal. A signed receipt or a tracking number showing delivery is strong proof. A vague merchant response or missing documentation works in your favor.
American Express will notify you of the outcome by mail or email, usually within 30 to 90 days. If they rule in your favor, the dispute is closed and the charge stays removed. If they rule against you, the charge goes back on your bill and you owe it.
Disputes you are likely to lose
American Express will probably rule against you if the merchant has a signed receipt with your name on it, a delivery confirmation showing the item arrived at your address, or an email from you authorizing the charge. These are hard to argue against because they show you knew about the transaction.
Disputes over the quality or condition of merchandise are also difficult to win. If you received the item but it was damaged, broken, or not what you expected, that is usually a matter between you and the merchant, not American Express. American Express can only help if the merchant outright refused to deliver or if the charge was completely unauthorized.
If you ordered from a small business or a private seller, American Express may have less leverage to force a refund even if you win the dispute. The merchant might not respond, or they might ignore the ruling. In those cases, American Express may still credit you, but the merchant keeps the money.
What to do if American Express rules against you
If you disagree with the decision, you can ask American Express to reconsider. You have 10 days from the date of the decision letter to submit new evidence. This might be a message from the merchant admitting the charge was wrong, a photo showing the item was damaged, or a shipping confirmation proving the item never arrived.
Call the number on the back of your card and explain that you want to appeal the dispute decision. Give them your case reference number and describe the new evidence. American Express will review it and make a final decision. This second review is your last option through American Express.
If American Express still rules against you, your other option is to contact your state's attorney general or file a complaint with the Consumer Financial Protection Bureau. These are slow processes, but they can pressure American Express to reconsider if they made a clear error.
How to avoid disputes in the first place
Keep receipts for at least 30 days after a purchase, especially for online orders. When something arrives, check it when ready and photograph any damage. If you are unhappy with a purchase, contact the merchant first — many will refund you without involving American Express, and it is faster than a dispute.
For online purchases, use a credit card rather than a debit card when possible. American Express and other credit cards offer stronger fraud protection than debit cards do. Save order confirmations and tracking numbers until the item arrives and you confirm it is correct.
If you see a charge you do not recognize, contact the merchant before disputing. Sometimes a charge appears under a different name than you expect, or a subscription you forgot about renews. A quick phone call or email often clears this up without needing a formal dispute.
Frequently Asked Questions
Do I have to pay the disputed charge while American Express investigates?
No. Once you start a dispute, you are not responsible for paying that charge. American Express usually gives you a provisional credit within two to three business days, so the charge is removed from what you owe. If American Express rules against you, the charge goes back on your bill at that time.
What if the merchant is out of business or will not respond?
American Express will try to contact the merchant, but if they cannot reach them or the merchant does not respond, American Express usually rules in your favor by default. The investigation takes longer because American Express waits for a response, but silence from the merchant works in your favor.
Can I dispute a charge if I authorized it but changed my mind?
Not through a standard dispute. If you bought something and then decided you did not want it, that is a return or refund issue between you and the merchant, not a dispute. Contact the merchant directly to ask about their return policy. A dispute is for charges you did not authorize or transactions that went wrong.
How long does a dispute stay on my record?
A dispute does not appear on your credit report. It is only tracked in your American Express account history. Once the dispute is closed, it stays in your account records but does not affect your credit score or future credit decisions.
What if the same merchant charges me twice by mistake?
Dispute one of the charges when ready. Duplicate charges are straightforward disputes — the merchant usually admits the error and American Express rules in your favor quickly. Have your statement ready so you can show both charges and confirm they are identical.