Merchant Account Risk Score: What It Is & How to Improve Yours
Introduction Your merchant account risk score is quietly running in the background, shaping every term your payment provider offers you. Most merchants don't know it exists until they're paying too much, or get terminated. Understanding your score, and improving it, is one of the highest-leverage moves any merchant can make in 2026. TL;DR - Your risk score is calculated by your acquiring bank and determines your MDR, reserve %, and volume caps - The five main scoring factors are: chargeback ratio, MCC code, transaction patterns, compliance status, and financial stability - Merchants in Tier 4 pay up to 4.5% more in MDR than Tier 1 merchants, on $300K/month, that's $162,000/year extra - The fastest improvements come from fixing your billing descriptor, enrolling in chargeback alerts, and deploying 3DS2 authentication - High-risk merchants and offshore merchants have the most to gain from actively managing their score What Is a Merchant Account Risk Score? A me...