A sole proprietor in California does not need workers’ compensation insurance if they have no employees, with one exception: contractors licensed in five high-risk classifications must carry coverage even when working alone. Hire anyone, though, and the requirement kicks in immediately.
The Default Rule When You Work Alone
California requires every employer to secure workers’ compensation coverage, either by buying a policy or qualifying as a self-insurer.1California Legislative Information. California Labor Code 3700 A one-person operation with no workforce is not an “employer” under that framework. You cannot be your own employee, so the mandate does not reach you.
Licensed contractors have one extra step. The Contractors State License Board requires every active licensee to either show proof of insurance or file a Certificate of Exemption confirming they have no employees.2Contractors State License Board. Workers’ Compensation Requirements If you qualify, the exemption can be filed through the CSLB online portal and updates automatically in the board’s database.3Contractors State License Board. Exemption from Workers’ Compensation Insurance
Five Contractor Licenses That Cannot Claim the Exemption
Business and Professions Code Section 7125 bars holders of certain classifications from filing a workers’ compensation exemption, regardless of whether they have employees.4California Legislative Information. California Business and Professions Code 7125 If you hold one of these, you need a policy or a valid Certificate of Self-Insurance even as a solo operator:
- C-8: Concrete
- C-20: Warm-Air Heating, Ventilating, and Air Conditioning
- C-22: Asbestos Abatement
- C-39: Roofing
- C-61/D-49: Tree Service
If a licensee in one of these trades lets coverage lapse, the CSLB registrar removes that specific classification from the license rather than suspending the whole license. Either way, you cannot legally perform that type of work. Joint ventures are excluded from the requirement.3Contractors State License Board. Exemption from Workers’ Compensation Insurance
When Hiring Changes Your Answer
The exemption ends the moment you hire your first worker. California requires coverage in place before an employee starts work, and every category of hire counts: full-time, part-time, seasonal, and temporary.5Department of Industrial Relations. Before the First Employee Starts Work
Family generally counts too. The only family carve-out in the workers’ compensation code covers household domestic workers employed by a parent, spouse, or child. If you bring your spouse or adult child into the business, they are employees for these purposes and you need coverage.6California Legislative Information. California Labor Code 3351
Don’t Assume a Subcontractor Isn’t an Employee
California starts from the opposite assumption. Under the ABC test, adopted statewide through Assembly Bill 5, every worker is presumed to be an employee, and you bear the burden of proving otherwise by satisfying all three prongs:7Labor Commissioner’s Office. Independent Contractor Versus Employee – Section: 1 – What Is the ABC Test?
- Part A: The worker is free from your control and direction in performing the work, both in practice and under the contract.
- Part B: The work is outside the usual course of your business. A plumber fixing a leak at a clothing store passes; a salesperson in that same store does not.
- Part C: The worker is customarily engaged in an independently established trade or business of the same nature as the work they do for you.
Fail any one prong and the worker is your employee.8Labor & Workforce Development Agency. ABC Test This is where sole proprietors most often stumble. A “subcontractor” who works only for you, follows your schedule, and does the same type of work your business sells will almost certainly fail Parts A and B. The label on the contract does not decide the question; the working relationship does.
What Happens If You Get It Wrong
Operating without required coverage is a misdemeanor. A first offense carries up to one year in county jail, a fine of at least $10,000 or double the premium you should have been paying (whichever is greater), or both. A second conviction raises the minimum fine to $50,000 or triple the unpaid premium.9California Legislative Information. California Labor Code 3700.5
The Division of Labor Standards Enforcement can also issue a stop order that prohibits any use of employee labor until you obtain coverage, which effectively shuts down a small operation. Ignoring the stop order is a separate misdemeanor with up to 60 days in jail, a fine of up to $10,000, or both.10California Legislative Information. California Labor Code 3710.2 On top of that, the state can assess civil penalties against uninsured employers up to $100,000.11California Legislative Information. California Labor Code 3722
The worst exposure appears if someone gets hurt. Workers’ compensation is normally the “exclusive remedy” for a workplace injury: the employee gets guaranteed benefits and gives up the right to sue. Without insurance, you lose that shield, and the injured worker can sue you directly in civil court for full damages.12California Legislative Information. California Labor Code 3706 In that lawsuit, the law presumes the injury resulted from your negligence, and you cannot raise common defenses like the employee’s own carelessness or assumption of risk.13California Legislative Information. California Labor Code 3708 The deck is deliberately stacked.
Buying Coverage Even When You Don’t Have To
Nothing stops a sole proprietor from purchasing a policy that covers themselves. Solo operators in physically demanding trades often do, because a serious injury can mean months without income. Sole proprietors are not automatically included in a workers’ compensation policy, so you generally have to elect coverage through a specific endorsement. The State Compensation Insurance Fund calls this “volunteer coverage” endorsed onto the policy.
There is also a business reason beyond personal protection. Many general contractors and commercial clients will not let you on a job site without a Certificate of Insurance showing active coverage. If your work leans toward commercial projects or subcontracting, a voluntary policy may be the price of admission whether or not the law requires it.