Workers’ Comp Market Reaches Critical Juncture as California’s Combined Ratio Hits 127%

The U.S. workers’ compensation market is experiencing a structural transformation after nearly 10 years of declining rates, driven by escalating medical costs, cumulative trauma litigation and growing concerns about reserve adequacy, according to the 2026 US Workers’ Compensation Market Outlook from Risk Placement Services.

California’s workers’ compensation market is a harbinger of nationwide shifts, with fundamental changes that reverberate far beyond the state’s borders, according to the RPS report.

Representing nearly a quarter of the national workers’ compensation market, California reached a combined ratio of 127% in 2024—the highest in more than two decades—prompting the Insurance Commissioner to approve an 8.7% rate increase in 2025, marking the state’s first hike in a decade.

“Escalating medical costs, increased frequency and severity of claims, especially complex ones like cumulative trauma, and higher litigation expenses have reached a critical point,” explains Patrick Edwards, area senior vice president and Workers’ Compensation Practice Leader at RPS.

The soft market conditions that persisted for years created a false sense of security among clients and brokers, who relegated workers’ compensation to the background while property and casualty rates soared, according to RPS.

Now, carriers are reassessing portfolios with newfound urgency. Across California, policy renewals are experiencing net rate increases as high as 27% year-over-year, even for accounts with minimal loss history.

“Carriers are raising minimum premiums, removing previously applied credits and adding debits to accounts where the experience modification has increased,” said Amanda Ikari, area senior vice president for RPS in Westlake Village, California.

Outside California, the market appears more resilient, with combined ratios remaining profitable in the 86 to 89% range, the report said.

However, Nevada bucked this trend with a 6.5% workers’ compensation rate increase in March 2025—the first major adjustment after nearly a decade. Conversely, states like Massachusetts, West Virginia and Connecticut continued to experience decreases, with Massachusetts approving a 14.6% reduction for the fifth consecutive year.

The Convergence of Cost Pressures

Multiple forces are colliding to reshape workers compensation claim economics, according to RPS.

Medical inflation continues to climb, with the Workers’ Compensation Weighted Medical Price Index reflecting inflation rates between 2 and 3.5%. Health care spending is projected to rise 5.4% annually through 2028, according to Centers for Medicare and Medicaid Services projections.

Compounding this cost pressure, cumulative trauma claims now account for nearly one-quarter of all indemnity claims statewide—an all-time high that reflects rising workplace repetitive stress injuries.

Additional cost drivers impacting Califiornia include wage inflation—California’s minimum wage is set to reach $16.90 per hour in January 2026—and a “telelegal revolution” that has enabled Los Angeles attorneys to litigate cases remotely across the state at rates of 80 to 85% during 2023-2024, RPS said.

This geographic arbitrage of litigation practices has spread high-cost strategies statewide. An aging workforce in the state concentrated in traditional employment also contributes to rising costs, as younger workers gravitate toward the gig economy, leaving older, injury-prone workers in conventional roles.

Reserve adequacy has emerged as a critical concern in California, RPS said. California’s estimated claims redundancy—the reserve cushion carriers historically release to offset losses—has plummeted from $17 billion in 2017 to just $3 billion in 2024, potentially disappearing entirely within two to three years. This deterioration signals potential reserve deficiencies that could further pressure pricing and underwriting discipline, the report warned.

Navigating Emerging Risks and Regulatory Shifts

The evolving workers’ compensation landscape presents distinct challenges across industry sectors, according to the report.

Presumption laws are expanding rapidly, with the National Council on Compensation Insurance (NCCI) monitoring 64 bills related to workers’ compensation and mental injuries as of July 31, 2024, including 51 specifically addressing PTSD coverage for first responders, firefighters and other occupational groups. These legislative changes require carriers to reevaluate pricing and coverage strategies, RPS said.

The gig economy presents persistent classification ambiguities. Workers classified as independent contractors often lack adequate coverage and create compliance gaps for employers. Compensability determinations for remote and gig work require careful evaluation of injury location, work hours and job duty relationships, RPS said.

Industry-specific exposures are intensifying, according to the report:

• Health care facilities contend with rising workplace violence and assault claims alongside cumulative stress injuries among care providers.
• Construction companies face labor shortages impacting experience modifications and loss ratios.
• Temporary staffing agencies struggle with declining payrolls and joint employer liability concerns.
• Hospitality businesses absorb substantial payroll increases from new wage and livable wage mandates across multiple states.

Obtain the full report here. &