California WCRIB Proposes 10.4% Rate Increase Effective September 2026

Story Summary
On May 1, 2026, the Workers' Compensation Insurance Rating Bureau of California filed a proposal with the state's Insurance Commissioner setting advisory pure premium rates 10.4% higher than the previous year's average. The increase targets September 1, 2026, driven by rising medical costs, allocated loss adjustment expenses, and an uptick in cumulative trauma claims based on data from 2025 and earlier. A public hearing will follow once the California Department of Insurance reviews the submission.





