American Express Chargeback ProcessAmex is Not Like the Other Card Networks. Neither is Their Chargeback Process.
In a Nutshell
American Express chargebacks occur in three phases. A chargeback begins when an Amex cardholder disputes it by filing an official claim with their issuer, who will then launch an investigation and forward a chargeback reason code to the merchant via the acquirer. Afterwards, merchants have a limited time window to compile compelling evidence and submit a response.
What is the American Express Chargeback Process?
Unlike Visa and Mastercard, American Express doesn’t immediately slap you with a chargeback. Instead, Amex often kicks things off with an inquiry — a preliminary request for information that serves as a warning shot.
While this two-stage system gives you a brief window to resolve the issue before it escalates, it also adds an extra layer of complexity to the dispute lifecycle. If you miss the inquiry deadline, then it morphs into a full-blown chargeback, so you’ll want to know the ins and outs of the American Express chargeback process well before you need to navigate it yourself.
American Express Inquiries vs. American Express Chargebacks
Amex inquiries typically precede chargebacks. In most cases, merchants have 20 days to submit a response.
In most cases, the Amex chargeback process begins with an inquiry. When a cardholder files a dispute online or over the phone, American Express will usually attempt to determine whether a charge is valid before initiating a formal chargeback.
You have 20 days to respond to an Amex inquiry. If you provide information about the transaction to Amex’s satisfaction — such as proof of delivery, or evidence that a refund was provided — then the inquiry is closed. No formal chargeback gets filed. You can think of the inquiry stage as being akin to the bank investigation stage. The difference here is that you’re given a chance to participate in it.
However, if you do not furnish sufficient information to resolve the inquiry or fail to respond by the deadline, the inquiry will morph into a chargeback. At this point, funds are withdrawn from your account, and you’ll be assessed a chargeback fee by your acquirer.
In comparison, Visa merchants have up to 30 days to respond, while Mastercard gives sellers 45 days. Remember in all instances that these are upper bound estimates — in practice, acquirers will often impose much tighter timelines than even Amex’s 20-day limit.
Learn more about Amex chargeback time limits
Phases of the Amex Chargeback Process
The American Express chargeback process typically consists of three main phases: initiation, resolution, and (in select cases) and appeal process.
Phase One | Initiation & Notification
An American Express chargeback gets triggered when a cardholder contacts the issuer to contest a charge appearing on their billing statement. Common dispute triggers include fraudulent activity, non-receipt of purchased items or services, and statement discrepancies.
Once a cardholder files a complaint, American Express launches an inquiry and notifies the affected merchant. The notification package contains transaction specifics and the cardholder’s stated rationale.
The merchant faces a time-sensitive window — usually 20 days — to submit a response. During this critical stage, businesses must compile supporting documentation and build a persuasive argument demonstrating the transaction was valid.
Phase Two | Resolution
American Express evaluates all submitted materials from both parties during the resolution stage. The card network analyzes whether the cardholder's complaint has merit and decides if the disputed charge warrants reversal. When necessary, Amex will solicit supplementary details from the merchant or cardholder to reach a well-informed conclusion.
A merchant victory means the transaction gets reinstated, and American Express withdraws the provisional credit from the cardholder’s account. Conversely, when the dispute is decided in the cardholder’s favor, the credited funds remain with the customer.
Phase Three | Appeal Phase (Limited Availability)
American Express diverges from other payment networks by not offering a structured arbitration mechanism for chargeback disputes. Once Amex renders its decision, that determination typically stands as the final word on the matter.
Merchants can introduce supplementary documentation during representment (i.e. during the formal chargeback response). But, subsequent appeal pathways are severely constrained. The initial response represents the merchant's primary — and often only — opportunity to prevail.
Merchants have to approach the first response strategically, ensuring comprehensive evidence submission and a thorough review of all documentation. The absence of robust appeal mechanisms makes the initial representment the make-or-break moment for dispute resolution.
While cardholders have the option to re-dispute a charge, merchants have no recourse if Amex rules against them. That’s the major disadvantage to the card network’s lack of an arbitration process.
There are pros and cons to both approaches. While Amex merchants benefit from greater control over the representment process, they’re on their own when it comes to logistics and timeline management. On the other hand, OptBlue merchants benefit from a more unified chargeback experience (that’s much the same as handling disputes associated with other card networks). However, this convenience comes at the cost of flexibility.
Amex Chargeback Response Process
Amex serves as both an issuer and a card network in the same transaction. Thus, there are very few situations where they won’t have enough documentation to make a call. That said, if a merchant wants to appeal a decision, this can be done through the following steps:
Amex cardholders can file up to two disputes per transaction. This means that if a cardholder uncovers additional information after an initial chargeback is resolved, they may re-dispute the same transaction. If so, you’ll have another 20 days to respond, after which Amex will deliver a second ruling that supersedes the first.
