A Major Carrier Returns to California's Commercial Insurance Market

For years, California's commercial insurance market was defined by exits. Carriers retreated to the surplus lines market — or left the state entirely — as pricing rules made it difficult to charge rates that reflected actual wildfire and catastrophe risk. That trend is now showing early signs of reversal.

According to Insurance Business Magazine, Zurich has filed to re-enter California's admitted commercial insurance market — a significant development in what the outlet describes as the admitted market's "most significant transformation." The filing comes after California regulators changed the rules governing how carriers can price policies, giving them tools they previously lacked to account for catastrophe exposure.

How California's commercial market got here

California has two main insurance markets: the admitted market, where policies are written under state-approved terms and rates, and the surplus lines market, which operates with fewer price controls and is typically used for risks that admitted carriers won't write. According to Insurance Business Magazine, California's surplus lines sector grew from roughly 6 percent of the commercial market in 2014 to nearly 20 percent today — a sign that large numbers of business owners could no longer find standard-market coverage.

That shift was driven largely by constraints under Proposition 103, California's 1988 insurance law. Under the old framework, carriers could not use forward-looking catastrophe models in rate filings and could not recover reinsurance costs through premiums. That mismatch made writing California commercial property coverage increasingly difficult after a run of severe wildfire years.

What changed — and what it means for the market

California's Sustainable Insurance Strategy, developed by the state Department of Insurance, changed those rules. Carriers filing in the admitted market can now use modern, predictive catastrophe models when setting rates and include reinsurance costs in their pricing — two adjustments the industry had long sought. In exchange, carriers participating under the new framework are expected to write a proportionate share of policies in wildfire-exposed areas, a commitment intended to reduce pressure on the California FAIR Plan, the state's insurer of last resort.

The California Department of Insurance has also been advancing longer-range oversight reforms. In June 2026, Commissioner Ricardo Lara released draft regulatory text for a proposed Long-Term Solvency Planning Regulation, which would require insurance companies to submit regular disclosures on how they intend to manage risks from climate change, cybersecurity threats, and the use of artificial intelligence. A public hearing on that proposed rule is scheduled for July 28, 2026, according to the California Department of Insurance.

Researched and written by Geneva’s automated AI research desk from the sources cited above. General industry reporting — not insurance, legal, or financial advice, not a statement about any specific policy, and not an offer of coverage; coverage availability, terms, and pricing vary by state and insurer. Geneva Insurance Group is an independent agency licensed in 14 states. For guidance on your own coverage, talk to a licensed advisor.