California Workers Compensation Insurance: Requirements and Costs
If you have employees in California, you need workers compensation insurance. The California workers compensation insurance requirements apply from your first hire, and the penalties for skipping coverage are steep enough that most owners should treat it as a launch requirement, not an optional expense. This guide covers who must carry coverage, how owners and officers can opt out, what you must do after an injury, what happens if you go without coverage, and how premiums are calculated.
Informational disclaimer: This article is general information, not legal or tax advice. Workers compensation rules have exceptions and depend on specific facts. Talk with a licensed insurance broker, an attorney, or a CPA before you make decisions about coverage, waivers, or entity structure.
California workers comp requirements: who must be covered
Under Labor Code 3700, every employer in California except the state must secure payment of workers compensation for its employees. You can meet that duty in one of two ways. You can buy a policy from an authorized insurer, or you can get a certificate of consent to self-insure from the Director of Industrial Relations. Self-insurance is generally for large employers and requires Department of Industrial Relations approval, so most small businesses buy a policy.
The obligation turns on whether you have employees, not on how large the business is. Keep these points in mind:
- Part-time employees count.
- Temporary workers count.
- A business with a single employee must have coverage.
- An owner with no employees is generally not required to carry coverage on the owner personally.
Your first hire is the trigger. Workers compensation is separate from payroll tax registration. If you have employees, you also need to register with the Employment Development Department (EDD). Our EDD employer guide covers that step, including payroll taxes and new hire reporting. Set up your policy before your first paycheck so that no employee works a single shift uninsured.
Owners, officers, and LLC members: the officer exemption
Many owners ask whether they must buy coverage for themselves. California allows certain owners to waive coverage in writing. People often call this the officer exemption, although it is really a written waiver with specific tests. The rules differ by entity type.
Corporate officers and directors
A corporate officer or director can sign a written waiver under Labor Code 3352(a)(16) if the person meets both of these tests:
- The person owns at least 10% of the corporation's stock, or at least 1% if a parent, grandparent, sibling, spouse, or child owns at least 10%.
- The person is covered by health insurance.
The 10% figure is the threshold that matters for most small corporations. Do not assume that a smaller ownership stake qualifies.
LLC members and partners
A general partner of a partnership, or a managing member of an LLC, can waive coverage in writing under Labor Code 3352(a)(17). This is the provision most California LLC owners rely on when they ask about an LLC owner workers comp exemption.
The waiver has a limit. Under Labor Code 3351(f), working members of an LLC who are paid wages regardless of profits are employees, unless the managing member waiver applies. How you pay yourself therefore matters. If you draw a fixed salary from the LLC, the code treats you as an employee unless you have a valid waiver. Confirm your situation with a CPA before you rely on the waiver.
Two practical notes. First, the waiver is not automatic. You must sign it, and you should ask your insurer for its own waiver form instead of downloading a generic template. Second, a waiver for an owner does not change your duty to cover any other employees you hire.
Contractors: check your license class
Contractors face an extra layer of rules. If a contractor's required workers compensation coverage lapses, the contractor license is automatically suspended under Business and Professions Code 7125.2. Coverage rules can also vary by license class, including roofing and other trades, so do not assume an owner-only contracting business is exempt. Check with the Contractors State License Board (CSLB) about the coverage rules for your license class.
The contractor license threshold is $1,000, and the CSLB can confirm how that threshold applies to your trade and the work you plan to do.
After an injury: what the law requires you to do
The clock starts when you learn of an injury. If the injury causes lost time beyond the shift, or requires medical treatment beyond first aid, you must give the injured employee a claim form and a notice of potential eligibility for benefits within one working day under Labor Code 5401. You can deliver them in person or by first class mail. Do not wait for the employee to ask.
You must also post a notice in the workplace that names your insurance carrier and the person or organization that adjusts claims, under Labor Code 3550. Failing to post the notice is a misdemeanor, and it is prima facie evidence that you have no insurance. Post it where employees will see it, and update it whenever your carrier or claims administrator changes.
California workers comp penalty for an uninsured employer
California treats going without coverage as a serious violation. The penalties apply whether or not an employee is ever hurt, and several of them stack. The main consequences are below.
| Violation or action | Consequence | Authority |
|---|---|---|
| Failing to secure compensation, by someone who knew or should have known | Misdemeanor punishable by up to one year in county jail, a fine of up to double the premium that would have been due but not less than $10,000, or both | Labor Code 3700.5 |
| Second offense | Fine of triple the premium and not less than $50,000 | Labor Code 3700.5 |
| Stop order | Bars use of employee labor until the employer complies. Affected employees are paid for lost time up to 10 days. The employer may request a hearing within 20 days. | Labor Code 3710.1 |
| Penalty assessed with a stop order | $1,500 per employee | Labor Code 3722(a) |
| Uninsured for more than a week | The greater of twice the premium the employer would have paid, or $1,500 per employee | Labor Code 3722(b) |
| Contractor licensees | Civil penalties from $10,000 for a sole owner and $20,000 for other entities | Business and Professions Code 7125.4 |
The stop order is narrower than a general shutdown order. It bars use of employee labor until you comply. For a business that depends on its crew, though, that restriction can stop most of the work.
The practical lesson is simple. An uninsured employer owes the premium it skipped, and the penalties can exceed that premium several times over. Buying coverage before the first hire is the cheaper path.
What California workers comp costs per 100 payroll
Your premium is generally calculated this way:
Premium = (payroll divided by 100) × classification rate × experience modifier
- Payroll divided by 100: Rates are expressed per $100 of payroll, so payroll is divided by 100 before the rate is applied.
- Classification rate: Each job type falls into a class code, and each class code carries its own rate. A clerical employee and a roofer will have very different rates.
- Experience modifier: This adjusts the premium based on your own claims history compared with businesses in your class.
The Workers' Compensation Insurance Rating Bureau (WCIRB) develops advisory pure premium rates, and the Insurance Commissioner reviews them. Insurers file their own rates and may use the advisory rates or depart from them. The WCIRB does not set the amount you pay. Your insurer's filed rate does. Pure premium also excludes the insurer's overhead, so the amount you actually pay is higher than the pure premium figure.
For a sense of scale, a Department of Insurance proposed decision put the industry average advisory pure premium rate at $1.72 per $100 of payroll as of January 1, 2026. Verify this figure with the Department of Insurance before you use it for planning. An industry average blends every class together, so it is not a budget for your specific business.
To get real numbers, request quotes from several insurers or a broker. Make sure each quote lists your class codes, your estimated payroll for each class, and your experience modifier. Compare quotes on the same payroll estimates, and ask whether each premium includes the items you expect to pay.
Where to buy California workers compensation coverage
- Private insurers. Most small employers buy from private carriers, either directly or through a broker.
- Brokers. A broker can shop several insurers and explain class codes and waivers. Ask how the broker is paid so you can compare fairly.
- State Compensation Insurance Fund (State Fund). State Fund is the state's insurer of last resort. Confirm with State Fund whether it writes the policy you need and what it charges for your class.
- Self-insurance. This option is for large employers. It requires approval from the Department of Industrial Relations and a certificate of consent to self-insure.
Your workers comp checklist
- Confirm whether you have or will have employees, including part-time and temporary workers.
- Identify the class codes that match your work and estimate payroll for each class.
- Request quotes and buy coverage before your first payroll.
- If you hold a contractor license, confirm your class's coverage rules with the CSLB.
- Decide whether any owner will sign an officer or managing member waiver, and get the insurer's waiver form.
- Post the required notice and set up a process to deliver claim forms within one working day of learning of an injury.
Official resources
- Department of Industrial Relations
- Contractors State License Board
- California Department of Insurance
- Workers' Compensation Insurance Rating Bureau
- State Compensation Insurance Fund
- California Secretary of State, Business Programs Division
This article is informational only and is not legal or tax advice. For complex situations, including mixed ownership, contractor licensing, or employees in more than one state, consult a qualified attorney, CPA, or licensed insurance broker.