Four levers: the right job class, time cards proving the wage, the right call on owners, and more quotes. California's advisory benchmark rate rises 6.6 percent for policies starting September 1, 2026, so the levers you control matter more this year than last. Who this is for: California contractors who opened a renewal or audit bill and want it lower without cutting corners.
The short version
- Your price is payroll, times a rate per $100 for each job class, times a multiplier based on your claims history.
- California has cheaper high-wage classes for construction trades. Pay a carpenter $46 an hour from September 1, 2026 and the rate drops, but only if time cards show start and stop times.
- Office staff who do nothing but office work in a separate area go in the low-cost clerical class. An office manager who visits job sites cannot be split.
- Corporate officers, partners, and LLC managing members are covered by default here. A signed waiver takes them off. Sole proprietors are out unless they opt in.
- Shop it. Every California insurer sets its own rate, and State Fund, the not-for-profit insurer California set up, competes for good accounts too.
What sets my workers comp price in California?
Every California workers comp bill is built the same way. Payroll for each job class, divided by 100, times that class's rate. That total is multiplied by your experience modification (a multiplier based on your claims history), then the insurer adds credits or debits.
You control three of the four pieces. Payroll by class and owner choices are your records. The rate per $100 is each insurer's own filing, so shopping moves it. Your experience modification comes from California's rating bureau and only moves over time, as old claims age off.
California publishes a starting number, not a fixed price. The Insurance Commissioner approved an average of $1.65 per $100 of payroll for policies starting September 1, 2026, up 6.6 percent from $1.55. Insurers then file their own rates, which is why two quotes on the same payroll differ by thousands. More in how much workers comp costs in California.
Which California levers cut the bill the most?
| Lever | What to do | What it does |
|---|---|---|
| High-wage construction classes | Pay at or above the state threshold, and keep time cards with start and stop times | Moves that payroll to the lower rated class. The gap depends on trade and insurer. |
| Clerical class for office staff | Office work only, in a separate office area | Office payroll leaves the trade rate for a much lower one |
| Owner decisions | Sign a waiver for qualifying officers, partners, or managing members | Each excluded owner removes $66,300 to $171,600 of rated payroll, the state's owner payroll range from September 1, 2026 |
| Subcontractor certificates | Collect a certificate of insurance (a one page summary of their policies) and CSLB license number from every sub | Keeps uninsured sub payroll off your audit |
| Shop the policy | One application to several private insurers and State Fund | Rates for the same class differ by insurer |
The subcontractor line is usually the biggest audit fight. If a sub has no policy, that work is charged to you. It is rated at the sub's own classification, not your trade rate, and if you cannot show what the sub paid its crew the auditor uses a percentage of the contract price. So split every sub invoice between labor and materials, and get the certificate before the crew starts. An unlicensed sub is worse: Labor Code 2750.5 makes that crew your employees.
How do California's high-wage construction classes work?
California splits 16 construction trades into a low-wage class and a high-wage class with different rates. If an employee's regular hourly wage, not counting overtime, is at or above the threshold, that payroll goes in the cheaper class. Thresholds rise on September 1, 2026.
| Trade | Threshold now | From September 1, 2026 |
|---|---|---|
| Carpentry | $41 an hour | $46 an hour |
| Electrical wiring | $36 | $40 |
| Plumbing | $32 | $35 |
| Roofing | $31 | $33 |
| Concrete flatwork | $33 | $36 |
| Wallboard installation | $41 | $45 |
| Painting and waterproofing | $32 | $36 |
| Plastering or stucco | $38 | $42 |
| Excavation | $40 | $45 |
The catch is proof. At the year-end payroll check (the premium audit), the auditor needs original time cards recording start and stop times for each work period, plus the hourly wage. A union agreement also works. Payroll that cannot be matched goes in the low-wage class.
Should I take myself off the policy in California?
- Corporate officer or director. You need at least 10 percent of the stock, or 1 percent with a close family member holding 10 percent, plus health insurance, plus a signed waiver.
- General partner or LLC managing member. The same signed waiver, with no ownership minimum.
- Sole proprietor. Already off, unless you elected in.
More in can I exclude myself from workers comp in California and should office staff cost less than field employees.
Where should I shop a California workers comp policy?
Private insurers write most California contractors, and each files its own rates. State Fund competes for good accounts and is also where you apply if private insurers decline. A broker sends one application to all of them. See cheaper workers comp in California.
What this looks like in real life
Illustrative example. It is typical of what we see and is not a promise of how any specific situation would be handled.
The setup: A drywall contractor in Fresno runs eight installers. She pays $46 an hour, above the $45 wallboard threshold for policies starting September 1, 2026, and expects the cheaper class.
What went wrong: Her crew clocks hours on a phone app that records daily totals, not start and stop times. At the audit, nobody can match the hourly wage to time records, so the whole field payroll moves into the low-wage class.
What it cost: Illustrative math: that one classification change added roughly $21,000 to her bill for the year, billed after the audit.
The fix: She switched the app to record start and stop times and kept the exports. The next audit put every installer in the high-wage class.
Frequently asked questions
Q: How can I reduce my workers comp costs in California?
Get payroll into the right classes, including the high-wage construction classes and the clerical class for office staff. Keep time cards with start and stop times. Decide on owner waivers. Then shop across private insurers and State Fund.
Q: Why is workers comp so expensive in California?
Medical and claim handling costs are high, and the state's benchmark rose to $1.65 per $100 of payroll for policies starting September 1, 2026. Construction classes sit well above that average, and your insurer sets its own rate on top.
Q: Does paying my crew more really lower my workers comp?
It can. California rates payroll at or above the trade's hourly threshold in a cheaper class. From September 1, 2026 that is $46 for carpenters, $40 for electricians, $35 for plumbers, and $33 for roofers. You need time records to prove it.
Q: My time-tracking app only records daily totals. Is that good enough?
No. California wants original time cards showing start and stop times for each work period, tied to the hourly wage. Daily totals do not let the auditor check the regular hourly rate, so that payroll drops into the higher rated class.
Q: Can my office manager be rated in the clerical class?
Only if they do nothing but office work in a separate office area. If they also run to job sites, deliver materials, or supervise crews, California does not allow a split.
Q: Is State Fund cheaper than a private insurer in California?
Sometimes, and sometimes not. State Fund competes with private insurers and is also where you go if they decline you. The only way to know is to put its quote next to the private ones.
How Morrow helps
Morrow is a licensed independent commercial insurance brokerage that works with contractors and trades every day. Finding the class, wage tier, owner, and record keeping mistakes that inflate a California contractor's workers comp bill, then shopping the corrected payroll, is work we do every renewal season.
- Free contract review. Send us the contract or bid documents and we mark up the insurance section in plain English, whether or not you buy anything from us.
- Free, instant certificates. Clients issue their own certificates of insurance online in about a minute, any hour, any day, at no charge.
- Markets you cannot reach online. One application, shopped across many insurance companies for general liability, workers comp, auto, umbrella, and pollution coverage.
One more thing. This article is general information and is not legal advice or a statement of coverage. Your contract and your policy wording control in every case. Requirements vary by customer, by state, and by insurance company, so have a licensed advisor review your own contract and your own policy before relying on any of it.
Last updated: Reviewed by the Morrow commercial lines team. Last updated September 2026.