Pure Premium

Pure Premium and How It Impacts Your Company

Author, Casey Craig, Account Executive, Rancho Mesa Insurance Services, Inc.

The Workers Compensation Insurance Rating Bureau (WCIRB) is an agency that compiles essential data annually which determines how your Experience MOD is impacted.. These factors establish the baseline average MOD of 1.00 for California companies that produce enough payroll and premium to qualify within the guidelines. These factors can change year to year and represent a key rate trend indicator for all policyholders.