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2020 Experience Modification Estimator

Understand how payroll and claims experience will affect the computation of an experience modification. 

Use the Estimator

2019 State of the System

The report highlights key metrics of the California workers’ compensation system.

View the Report

Wildfire Operations

There are classifications that apply to many firefighting and fire prevention operations. 

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WCIRB Losses and Expenses Report

The WCIRB has released its report on workers' compensation losses and expenses for 2018.

View the Report

What Do You Want To Do?

About The WCIRB

The Workers' Compensation Insurance Rating Bureau of California (WCIRB) is California’s trusted, objective provider of actuarially-based, research integral to a healthy workers’ compensation system.

We provide tools to help licensed agents and brokers serve their clients, and educational resources for employers to better understand California’s workers’ compensation system.

Learn more about the WCIRB >

Information for New WCIRB Members >

Join our team! Learn more about WCIRB career opportunities >