Business insurance in California
Running a business in California means operating in the largest and most complex commercial insurance market in the country. If you have even one employee, workers' comp is mandatory from day one, and the state's wildfire, earthquake, and litigation exposure shapes what you'll pay for property and liability coverage. Whether you're a contractor in Sacramento or a tech firm in the Bay Area, understanding your obligations before you shop protects both your license and your balance sheet.
This is an independent guide from QuoteSweep, which maps the modern commercial insurance landscape.
California requirements at a glance
- Workers' comp
- Required for every employer with one or more employees (full- or part-time) under Labor Code § 3700 — no size or payroll threshold, and coverage must be in place from the first hire. Sole proprietors and partners with no employees are generally exempt, but roofing contractors must carry it regardless. Going uninsured is a misdemeanor punishable by up to one year in county jail and/or a fine of at least $10,000 (up to double the unpaid premium). Employers may buy from a private carrier or the competitive State Compensation Insurance Fund (State Fund).
- WC market
- Competitive — private insurers available
- Min. auto liability
- 30/60/15
- State regulator
- California Department of Insurance (CDI)
What businesses in California need
Most California businesses build coverage from a few core lines. California is the largest and most complex U.S. commercial insurance market, with elevated catastrophe exposure: wildfire risk has pushed many businesses onto the state's FAIR Plan for property coverage after admitted carriers pulled back, and earthquake is a separate, largely uncovered peril. It is also a high-litigation, high-workers'-comp-cost state, so general liability and WC premiums typically run above the national average.
- • General liability — third-party injury and property-damage claims. See the cost guide.
- • Business owner's policy (BOP) — bundles liability and property. See the BOP cost guide.
- • Workers' compensation — Required for every employer with one or more employees (full- or part-time) under Labor Code § 3700 — no size or payroll threshold, and coverage must be in place from the first hire. Sole proprietors and partners with no employees are generally exempt, but roofing contractors must carry it regardless. Going uninsured is a misdemeanor punishable by up to one year in county jail and/or a fine of at least $10,000 (up to double the unpaid premium). Employers may buy from a private carrier or the competitive State Compensation Insurance Fund (State Fund). See is workers' comp required.
- • Commercial auto — required for business vehicles (California minimum: 30/60/15).
- • Professional liability (E&O) and cyber — for advice-based and data-handling businesses.
Not sure where to start? See do I need business insurance and how much it costs.
Top insurers for California businesses
These modern insurers cover businesses in California and quote online:
Frequently asked questions
Does California require workers' comp if I only have one employee?
Yes. Under Labor Code Section 3700, every California employer with one or more employees—full-time or part-time—must carry workers' compensation. There is no small-business exemption, and going without it is a misdemeanor carrying fines up to $10,000. You can buy coverage from a private insurer or from the competitive State Compensation Insurance Fund (State Fund); California is not a monopolistic state, so private carriers can compete.
What are California's minimum auto liability limits for a business vehicle?
As of January 1, 2025, California's minimum is 30/60/15—$30,000 bodily injury per person, $60,000 per accident, and $15,000 property damage—raised by SB 1107 from the 15/30/5 limits that had stood since 1967. These are legal minimums only; most businesses carry higher commercial auto limits to protect assets. Confirm current requirements with the California DMV.
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