How Much Is Workers' Comp Insurance in California?

Workers' compensation in California is priced on payroll, so there is no single price that fits every business. The best statewide benchmark is the advisory pure premium rate approved by the California Insurance Commissioner: an average of $1.65 per $100 of payroll for policies starting on or after September 1, 2026, as reported by Insurance Journal. MoneyGeek's California average for workers' comp (updated November 4, 2026) is about $256 per month, or $3,069 per year. Your own cost depends mostly on the kind of work your employees do and how much you pay them.

How California workers' comp premiums are calculated

The basic formula is simple: your payroll, divided by 100, times the rate for each employee's job classification, adjusted by your experience modification if you have one. For example, a business with $200,000 in payroll at a rate of $1.65 would start at about $3,300 per year before any other adjustments. That example is only an illustration, because real rates vary widely by class code.

Two things make the real number different from the average:

• Class codes. Every job is assigned a classification. Clerical office work carries a far lower rate than roofing, framing or trucking, because injuries are less common and less severe.
• Pure premium is not the final price. The advisory pure premium rate covers expected claim costs only. Insurers add their own expenses and set their own rates, so what you are charged is usually higher than the pure premium.

What drives your workers' comp price

• The work your employees do. Correct class codes are the single biggest factor. Splitting payroll properly between office staff and field crews can make a large difference.
• Total payroll. More payroll means more premium. Overtime and seasonal hiring change the final audited amount.
• Experience modification. Larger employers get a rating that compares their claims to similar businesses. Fewer and smaller claims lower it over time.
• Safety record. Training, written safety programs and quick claim reporting help keep claims, and future premiums, down.

California rules employers should know

Coverage is required for employers. California Labor Code section 3700 requires employers to secure workers' compensation for their employees.

Going without it can shut down your work. Under Labor Code section 3710.1, if an employer fails to carry coverage, the state must issue a stop order that bars the business from using employee labor until it complies. The order takes effect when it is served, and affected employees must be paid for up to 10 days of lost time.

Premiums are audited. Your policy is priced on estimated payroll and then checked against actual payroll at the end of the term. Keeping clean payroll records by job type avoids surprise bills at audit time.

Ways to lower your workers' comp cost

• Make sure every employee is in the right class code, and keep payroll records that separate office and field work.
• Report injuries right away and use return-to-work or modified duty when it fits.
• Put a written safety program in place and document training.
• Ask about pay-as-you-go billing, which ties payments to actual payroll and can soften audit surprises.
• Have us shop your coverage, since carriers differ in which industries they want to write.

Pricing varies by carrier, class code and eligibility, so none of these steps guarantees a specific price.

Get your actual rate

Averages and rate tables are a starting point. Your actual premium depends on your class codes, payroll and claims history. For a real number, send us a few details below or call (909) 972-0699.

We're appointed with Farmers and other top carriers, so we can compare options and help you find coverage that fits your needs with great value.

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Frequently Asked Questions

How much is workers' comp insurance in California per month?

MoneyGeek's California average is about $256 per month, or $3,069 per year (updated November 4, 2026). Because premiums are based on payroll and job type, a small office may pay far less and a construction company far more.

What is the California workers' comp rate per $100 of payroll?

The California Insurance Commissioner approved an average advisory pure premium rate of $1.65 per $100 of payroll for policies starting on or after September 1, 2026. Insurers add their own expenses, so the rate you are charged is usually higher, and it varies by class code.

Do I need workers' comp if I only have one employee?

Yes. California Labor Code section 3700 requires employers to secure workers' compensation, and the state can issue a stop order against a business that does not carry it.

Sources

1. Insurance Journal, "California Insurance Commissioner OKs Upping Workers' Comp Pure Premium," July 13, 2026. insurancejournal.com
2. MoneyGeek, "Average Business Insurance Cost in California," updated November 4, 2026. moneygeek.com
3. California Labor Code section 3710.1. california.public.law