Chargeback Reason Code

When a dispute arrives, the most useful detail is not the amount or the customer’s name. It is the chargeback code attached to the case. That short label tells you what the cardholder’s bank claims went wrong, and it shapes what you gather, what you argue, and how you frame your reply.

What Is a Chargeback Reason Code?

Every chargeback reason code records the basis the issuer gives for a dispute. It travels from the issuing bank through your acquirer to you, and it points to the rules, response options, and evidence that apply to that transaction. Think of it as the claim, not the verdict. It says what is being alleged, not who will win.

Each card network names these labels differently:

Visa: Dispute conditions, grouped under Conditions 10 through 13
Mastercard: Message reason codes
American Express: Chargeback codes

Here, merchant chargeback reason codes describe the claimed cause of one disputed transaction. Decline codes, MATCH listings, and monitoring categories are separate systems.

If you contest the dispute, your response must address the reason actually given. The industry calls this representment, though the formal terms vary: Mastercard speaks of a second presentment, and Visa of a Dispute Response. Some Visa fraud disputes let you lean on compelling evidence.

In April 2026, Visa extended Compelling Evidence 3.0 through Order Insight, aimed at qualifying cases with suspicious transactions or first-party misuse. Whatever the code, Visa’s advice is to pull together receipts, shipping records, and customer messages, then send them through your acquiring bank for the issuer to review.

How Reason Codes Are Categorized

The easiest way in is Visa’s numbering. Its dispute conditions fall into four groups:

10, Fraud: Counterfeit fraud under the EMV liability shift (10.1), plus other fraud, split into card-present (10.3) and card-absent (10.4) transactions.
11, Authorization: A declined authorization (11.2), or no authorization at all, including late presentment (11.3).
12, Processing errors: Wrong currency, account number, or amount, duplicate processing, payment by other means, and invalid data.
13, Consumer disputes: Orders or services that never arrived, canceled recurring payments, defective or misdescribed items, counterfeit merchandise, misrepresentation, and credits not processed.

In practice, that means three kinds of conversation. With fraud chargeback reason codes, the question is whether the real cardholder made or approved the purchase. With an authorization/processing error, the question is whether the required authorization and transaction-processing steps were followed correctly. With a customer dispute, the question is whether you delivered what was promised.

Mastercard has its own message reason codes, including 4808 for disputes tied to authorization and 4853 for cardholder disputes.

American Express organizes its codes by prefix. A covers authorization issues, C covers Card Member disputes, F covers fraud, and P covers processing errors.

That is why any chargeback codes list needs to identify the card network. A Visa code does not translate number for number into a Mastercard or American Express equivalent.

Some merchants also search for an identity fraud code, but no single code carries that name across the industry. Each network files stolen-identity and unauthorized-use claims under its own fraud codes. Mastercard’s MATCH reason code 14 is labeled Identity Theft, yet it is a merchant-screening entry, not a transaction chargeback code.

Visa Claims Resolution (VCR) was built to streamline and automate how disputes are handled. It runs through Visa Resolve Online (VROL), the platform where disputes, supporting documentation, and pre-arbitration are managed.

Examples of Reason Codes by Card Network

Each card network runs its own reason-code system, so a code’s number only makes sense within that network. The examples below show how Visa, Mastercard, and American Express label similar problems.

Visa

10.4: A fraud claim on a purchase made without the card
11.2: A transaction processed after the issuer declined it
12.5: The amount charged differs from the amount agreed
12.6: The same sale charged twice, or already paid another way
13.1: The order or service never arrived
13.3: What arrived was defective or did not match the description

Mastercard

4808: A dispute over authorization
4837 (37): The cardholder denies authorizing the transaction
4853 (53): A general cardholder dispute
4870 (70): A fraud claim covered by chip-card liability rules
4871: Chip-card rules applied to lost, stolen, or never-received cards

American Express

A02: No valid authorization for the charge
C08: The cardholder never received the purchase
F29: A fraud claim on a card-not-present charge
P08: The same charge billed twice

The code should shape the response. A fraud claim may call for very different evidence than a “not received” dispute or an authorization issue. Start by identifying the network and the reason given, then build your response around that specific claim.

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Related terms

Processing

Processing is everything that happens to move money from a customer’s card to a seller’s account after a purchase. At checkout, the customer sees only a brief pause. Behind it, the payment gateway sends the request to the payment processor. From there, it moves through the acquiring bank and card network to the issuing bank, which returns a response.

Chargeback Analyst

A chargeback analyst reviews disputed card payments and helps decide what happens next: accept the dispute or challenge it. Some work in-house at merchants, while others sit at an issuing bank, an acquirer, a payment processor, or a fintech. A merchant chargeback analyst stands on the seller’s side and weighs whether each dispute should be accepted or contested through representment, the step where the business submits evidence that the sale was legitimate.

MID (Merchant Identification Number / Merchant ID)

A merchant identification number (MID) is the code used to recognize a merchant account. The acquiring bank or payment processor usually assigns it when the account opens. Think of it as the account’s address inside card processing. It tells banks and card networks which merchant a sale belongs to. In simple terms, that is the merchant identification number definition.

Chargeback Rate (Chargeback Ratio)

A chargeback percentage looks like a simple number, but card networks do not all build it the same way. The formula, measurement period, and transactions counted can all change what the final percentage means for a merchant.

Decline Recovery (Decline Salvage)

Decline recovery, sometimes called decline salvage, describes the work of turning a failed card payment into one that goes through. A decline is not automatically the end of a sale or renewal. Sometimes the issue is temporary, sometimes the customer must take action, and sometimes the payment details on file simply need updating before anything can move forward.

Chargeback Alerts

A standard chargeback can reach a merchant days or weeks after the cardholder contacts their bank, when the options are narrow. Chargeback alerts shift that timing by flagging a transaction while the merchant can still act on it. Here is how that works, how it differs from a regular notification, and who offers it.

PAN (Primary Account Number)

A primary account number (PAN) is what most people call a “card number.” It identifies a credit, debit, or prepaid card account and may appear on the card itself. The number is also stored in the card’s magnetic stripe or EMV chip. In payment processing, the term primary account number means the identifier used to connect a transaction to the correct issuer and card account.

BIN (Bank Identification Number)

A bank identification number, or BIN, sits at the very start of a card’s primary account number (PAN), running either six or eight digits long. To get at the meaning of BIN, think about what happens the moment you tap or swipe: Those opening digits tell the network which bank issued the card and where to route it next.

MATCH code

Merchant accounts can end for plenty of reasons, but some terminations carry consequences beyond the current provider. When an acquiring relationship ends and a qualifying risk condition is present, the merchant may be reported to MATCH Pro. The code attached to that record tells future acquirers why the listing was made.

Verifi

The Verifi company builds dispute-management and chargeback-prevention technology. The connection behind searches for Verifi Visa dates to 2019, when Visa acquired the company. Ownership doesn’t box the products in, though, as several of them also cover other card brands.

VAMP (Visa Acquirer Monitoring Program)

The VAMP (Visa Acquirer Monitoring Program) is how Visa watches for payment activity that looks riskier than normal, from abnormal fraud and dispute levels to card-testing patterns. The VAMP program runs every month, and it applies at two levels: an acquirer’s whole portfolio and each merchant inside it.

Ethoca

Ethoca is a payments collaboration and dispute-prevention company owned by Mastercard, which acquired the company in 2019. At the time, Mastercard framed the platform as a way for merchants and issuers to tackle digital-commerce fraud together, almost as it happens. In practical terms, the Ethoca meaning comes down to a network that lets banks and merchants exchange dispute information quickly enough for the merchant to respond.