This 2025 edition of the CompScope™ Benchmarks study examines changes in the California workers’ compensation system and compares the performance of the California system with 17 other state systems. The report focuses on costs, income benefits, overall medical payments, use of benefits, duration of temporary disability, frequency and payments of permanent partial disability (PPD)/lump-sum claims, benefit delivery expenses, litigiousness, timeliness of payments, and other metrics. It examines how these system performance metrics have changed, primarily from 2018 to 2023 for claims at various claim maturities; in some cases, we use a longer time frame to provide historical context.

Note that the results we report reflect experience on claims through March 2024, including non-COVID-19 claims from the pandemic period. The study, therefore, provides a look at how the pandemic impacted non-COVID-19 workers’ compensation claims.

CompScope™ Benchmarks for California, 2025 Edition. William Monnin-Browder. April 2025. WC-25-03.

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