What Is a Chargeback? Everything Merchants Need to Know

A chargeback is a forced reversal of a card transaction initiated by a cardholder through their issuing bank. For merchants, it means losing both the sale amount and paying a fee, often without warning, and sometimes months after the original transaction. Understanding how chargebacks work is essential for any business that accepts cards.

1. How Chargebacks Work

The chargeback process has several distinct phases:

1. Cardholder disputes the transaction — the cardholder contacts their bank (the issuing bank) and says they don’t recognize, didn’t authorize, or are unhappy with a charge
2. Issuer initiates chargeback — the issuing bank reviews the claim, typically sides with the cardholder, and reverses the charge, pulling funds from your acquiring bank
3. Merchant notified — your payment processor notifies you of the chargeback, typically via email or dashboard alert, and debits your account for the disputed amount plus a chargeback fee ($15–$35)
4. Merchant response window — you have a limited time (typically 10–20 days depending on card network) to respond with evidence, or the chargeback stands automatically
5. Representment (if contested) — if you respond with compelling evidence, the processor submits it to the issuing bank for review
6. Resolution — the issuer rules in favor of either the merchant or the cardholder; if the cardholder wins, you’ve lost the transaction permanently

2. Chargeback Reason Codes

Every chargeback is filed with a reason code — a standardized code assigned by the card network that describes the cardholder’s claim. Reason codes determine what evidence you need to provide in a dispute response.

Major reason code categories:

Understanding the reason code before you respond is essential — evidence that addresses the wrong issue won’t win a chargeback, even if you have documentation.

3. What Chargebacks Cost

The total cost of a chargeback is typically 2–3x the transaction value:

• The disputed transaction amount — funds reversed from your account
• Chargeback fee — $15–$35 per dispute from your processor, regardless of outcome
• Staff time — researching the dispute, gathering evidence, and responding takes time
• Cost of goods or services already delivered — you’ve lost the product/service and the payment
• Monitoring program risk — high chargeback rates trigger Visa and Mastercard monitoring programs with additional fees

Industry estimates put the all-in cost of a chargeback at $190–$250 for a typical e-commerce transaction, factoring in all of the above.

4. Chargeback vs. Refund

A refund is initiated by the merchant. A chargeback is initiated by the cardholder through their bank. Key differences:

A key implication: if a customer contacts you about a dispute before filing with their bank, issuing a refund is almost always preferable to letting them file a chargeback, it’s faster, cheaper, and doesn’t affect your chargeback ratio.

5. Chargeback Time Limits

Cardholders have a limited window to file a chargeback after a transaction:

• Visa: 120 days from the transaction date or expected delivery date
• Mastercard: 120 days from the transaction date
• American Express: No fixed limit (but practically 60–180 days)

Once a chargeback is filed, merchants typically have 10–20 days to respond, depending on the card network and processor. Missing this deadline means automatic loss.

6. Types of Chargebacks

True Fraud

Someone stole the cardholder’s card information and used it for unauthorized purchases. The legitimate cardholder disputes the transaction. This is a genuine fraud scenario, the merchant was a victim too.

Friendly Fraud

The cardholder made the purchase legitimately but then disputes it — claiming non-delivery, defective goods, or sometimes outright lying about not making the purchase. This is first-party fraud and is estimated to account for 60–80% of chargebacks in e-commerce. See Friendly Fraud: How to Identify and Fight Illegitimate Chargebacks.

Merchant Error

The merchant made a processing error, charged the wrong amount, duplicated a transaction, or failed to process a refund. These chargebacks are legitimate and preventable.

7. Chargeback Thresholds and Monitoring Programs

Visa and Mastercard monitor merchant chargeback ratios the percentage of transactions that result in chargebacks in a given month. Exceeding thresholds triggers monitoring programs with additional fees and potential termination risk:

For detailed information on monitoring programs, see Chargeback Ratio: Understanding Thresholds and How to Stay Below Them.

8. Preventing and Winning Chargebacks

The best chargeback strategy is prevention, but when chargebacks happen, winning them matters. ConvesioPay’s built-in tools include:

• Fraud rules — configurable transaction screening to block high-risk orders before they process
• 3D Secure — authenticated transactions shift fraud chargeback liability to the issuer
• Visa Verifi RDR integration — automatic dispute resolution for enrolled cardholders before chargebacks are filed
• Clear billing descriptors — recognizable business name on card statements reduces “I don’t recognize this” chargebacks

For detailed prevention strategies, see Chargeback Prevention: 15 Proven Strategies to Protect Your Revenue. For fighting chargebacks when they occur, see How to Fight a Chargeback: The Merchant’s Step-by-Step Representment Guide.