Net Win Rate

A merchant’s net win rate is the ratio of chargebacks won divided by the total number of chargebacks filed against that merchant, multiplied by 100. For example, if a merchant receives 200 chargebacks, represents 100 chargebacks, and wins 40 of them, their net win rate is 20%.

Win rates help merchants understand how successful they are at compiling evidence and rebuttals against chargeback claims. Beyond the quality of evidence presented, net win rates are also determined in part by the chargeback reason code provided and the seller’s merchant category code.

Merchants can improve their net win rates by monitoring chargeback trends, using secure fraud detection tools, and implementing clear billing descriptors. In addition, merchants should clearly document each transaction they process and draft unambiguous return and refund policies.