Chargeback rate

Chargeback rate is the proportion of card transactions that are reversed after a customer files a dispute with their bank or card issuer. Unlike a refund, which is initiated by the merchant, a chargeback is initiated by the customer through their financial institution. The card network (Visa, Mastercard) adjudicates the dispute, and the merchant bears the burden of proof to demonstrate the transaction was legitimate.

Chargebacks carry costs well beyond the transaction value itself. Each chargeback incurs a fee from the payment processor (typically 15 to 100 pounds per dispute), the merchant loses both the product or service and the payment, and the dispute consumes staff time to investigate and respond. Most critically, card networks impose strict chargeback thresholds. Visa flags merchants that exceed a 0.9% chargeback rate, and Mastercard flags those above 1.0%. Breaching these thresholds triggers monitoring programmes with penalty fees, mandatory remediation plans, and the risk of losing card acceptance entirely.

Chargebacks fall into three categories: genuine fraud (the card was stolen or compromised), friendly fraud (the customer made the purchase but disputes it, often because they do not recognise the charge or want a refund without contacting the merchant), and merchant error (incorrect charges, failure to cancel subscriptions, or goods not delivered as described). Understanding the mix is essential because each category requires a different prevention strategy.

Chargeback Rate = (Number of Chargebacks in Month / Total Transactions in Month) x 100

Card networks typically calculate chargeback rate on a monthly basis using the number of chargebacks received in a month divided by the number of transactions processed in that same month. Note that chargebacks often arrive 30 to 120 days after the original transaction, so the rate may spike during months when older disputed transactions are processed.

Some businesses also track chargeback rate by value: (Total Chargeback Value / Total Transaction Value) x 100. This variant is useful for identifying whether high-value transactions are disproportionately disputed.

The tree decomposes chargeback rate into its three root causes. Genuine fraud disputes require stronger payment authentication (3D Secure, AVS checks). Friendly fraud requires clearer billing descriptors, better communication, and accessible self-serve cancellation. Merchant error disputes require process improvements in fulfilment, subscription management, and customer communication. Tracking the mix of dispute reasons is essential for directing prevention efforts to the highest-impact category.

1. 1

   Use clear billing descriptors

   The most common reason for friendly fraud chargebacks is that the customer does not recognise the charge on their statement. Ensure your billing descriptor includes your trading name and a way to contact you. Review your descriptor from the customer perspective.

2. 2

   Implement strong payment authentication

   Enable 3D Secure (Verified by Visa, Mastercard SecureCode) for transactions. This shifts fraud liability from the merchant to the card issuer and significantly reduces genuine fraud chargebacks. Use risk-based authentication to minimise friction for low-risk transactions.

3. 3

   Make cancellation and refunds easy

   Customers who cannot easily cancel a subscription or obtain a refund will file a chargeback instead. Self-serve cancellation and a clear refund policy convert potential chargebacks into lower-cost refunds that you control.

4. 4

   Respond to chargeback alerts promptly

   Services like Verifi and Ethoca provide alerts before a dispute becomes a formal chargeback. Issuing a refund at the alert stage prevents the chargeback from being recorded against your rate and avoids dispute fees.