Last updated: April, 27 2026
If you have at least one employee in California, workers’ compensation insurance is generally required unless an exception applies. For employers, it helps to focus on four basics: Obtain coverage, provide the required pamphlet, post the required notice and follow one-working-day injury response steps, while keeping key deadlines, liability minimums and penalties easy to verify. Just as important is understanding how coverage options differ from premium drivers, comparing costs with the risks of going uninsured and knowing what to do before and after an injury, what benefits may apply and how timing rules can affect a claim.
Key takeaways about CA workers’ compensation:
- Workers’ compensation is generally required if you have at least one employee.
- Most claim-related steps must be completed within one working day (providing, returning and forwarding claim forms).
- Employers must authorize up to $10,000 in medical treatment within one working day of receiving a claim.
- Policies must meet minimum employer liability limits of $100,000 per occurrence, $100,000 per employee and $500,000 total policy value.
- Employees may receive benefits such as temporary disability payments of up to two-thirds of regular wages and a job displacement voucher of up to $6,000.
- Injuries should generally be reported within 30 days, or within one year for repeated-exposure conditions.
- Failing to carry coverage can result in jail time of up to one year, fines starting at $10,000 and additional penalties up to $100,000.
Is workers’ compensation mandatory in California?
California law generally requires employers to carry workers’ compensation insurance (sometimes called “workman’s comp”) if they have at least one employee. While this is the starting point for most businesses, requirements can vary depending on the business structure and type of work.
Exemptions and special cases
Some businesses are treated differently under California law:
- Sole proprietors: Generally exempt, as long as they are not engaged in roofing
- Self-employed individuals: Required to carry coverage if they are roofers; otherwise, generally exempt
- LLCs: Must carry workers’ compensation if they have at least one employee
- Executive officers and directors: May choose to exclude themselves from coverage if they fully own the corporation
California workers’ compensation insurance requirements
Generally, employers with at least one employee are required to:
- Purchase California workers’ compensation insurance
- Provide new hires with a pamphlet explaining workers’ compensation rights and responsibilities
- Display the “notice to employees” in a conspicuous workplace location
The notice informs employees about workers’ compensation coverage and where to seek medical assistance for job-related injuries and illnesses.
Post injury checklist
If an employee suffers a work-related injury or illness, the employer must:
- Provide a workers’ compensation claim form within one working day after the injury or illness is reported
- Return a copy of the completed form to the employee within one working day of receipt
- Forward the claim form and report of occupational injury or illness to the claims administrator within one working day of receipt
- Authorize up to $10,000 in appropriate medical treatment within one working day of receiving the employee’s claim
- Provide transitional, light-duty work whenever appropriate
This is the most time-sensitive part of the topic. Employers who use a Medical Provider Network (MPN) may have additional requirements.
What is the minimum workers’ compensation insurance in California?
California businesses are required to purchase a workers’ compensation policy that meets these minimum employer liability limits:
- $100,000 per occurrence
- $100,000 per employee
- $500,000 total policy value
Insurers often recommend higher liability limits to help ensure adequate protection, and the difference in premium costs is usually minimal.
Workers’ compensation in California: How does it work?
California workers’ compensation insurance is a trade-off between employees and employers. Employees who suffer an on-the-job injury or work-related illness may receive benefits to assist them during recovery. In return, they generally cannot sue their employer over the injury or illness.
What does workers’ compensation cover in California?
Workers’ compensation insurance in California may include these benefit categories:
- Medical care: Any service reasonably necessary to treat an illness or injury may be covered, including doctor visits, hospital stays, physical therapy, lab tests, x-rays, medicines, medical equipment and travel costs. There are, however, limits on chiropractic care, physical therapy and occupational therapy.
- Temporary disability: Employees who are unable to work because of their injury or illness may be eligible to receive up to two-thirds of their regular pay every two weeks. Minimum and maximum payments are set by the state.
- Permanent disability: An injury that causes a permanent loss of physical or mental function measurable by a doctor may entitle employees to long-term wage replacement. Payment amounts depend on the employee’s age, occupation and medical reports, with state-set minimums and maximums.
- Supplemental job displacement: Employees with a permanent disability who are not offered regular, modified or alternative work may be eligible for a nontransferable voucher worth up to $6,000 to help pay for licenses, certifications, retraining or skill enhancements at an approved school.
- Death benefits: Payments may be made every two weeks to the spouse, children or other dependents of an employee who dies from a job-related injury or illness. The rate varies based on the number of dependents, and a burial allowance is also provided.
Employee reporting deadlines and claim timing
California authorities recommend that employees notify their supervisor as soon as they experience a work-related injury or illness, no matter how minor it may seem. Waiting too long can have consequences, as employees who do not report an injury within 30 days may lose their right to workers’ compensation benefits.
For injuries and illnesses caused by repeated exposure, employees have up to one year from the date they first notice symptoms to file a claim.
Temporary disability payments do not continue indefinitely. They stop when any one of the following occurs:
- The employee returns to work
- A physician clears the employee to resume work
- A doctor determines the injury has improved as much as physically possible
California workers’ compensation settlement types
Most workers’ compensation claims are resolved smoothly, but disputes can arise, especially if an employer believes the injury or illness is not work-related. In those situations, the claim may be escalated to the California Department of Insurance for investigation.
If a claim goes to trial, it typically results in one of two settlement types:
- Stipulations with request for reward (“stips”): The employer agrees to pay for the injured employee’s ongoing medical treatment, a set amount of weekly disability payments or both.
- Compromise and release: The employee receives a one-time, agreed-upon payment and the case is considered resolved.
How much does workers’ compensation insurance cost in California?
Premiums can vary by insurance provider based on several factors:
- Industry
- Payroll
- Past history of work-related injuries (experience modification)
- Special underwriting adjustments
- Eligibility for group or dividend programs
While cost is an important consideration, it’s only one part of the decision. Employers may also want to look at insurer services, their familiarity with the industry, the doctors included in the insurer’s network and how easy it is to work with claims adjusters.
For many employers, this comparison is most useful when considered alongside potential penalties, since the decision is often not just about what coverage costs, but what it could cost to operate without required coverage.
How are workers' compensation premiums calculated in California?
When calculating workers’ compensation insurance rates, California insurers consider several factors:
- Payroll amount: Larger payrolls may reflect a bigger or higher-paid workforce, which can increase claim risk and insurance costs.
- Industry type: Insurers set rates based on their ability to cover losses and expenses within each industry classification. Some industries carry higher risks than others, which can affect costs. Rates must be filed with the California Department of Insurance before being issued.
- Job classification: Codes developed by the Workers’ Compensation Insurance Rating Bureau of California (WCIRB) determine risk levels for specific job types. Jobs with a higher risk of injury typically lead to higher insurance costs.
- Claims history: An employer’s experience modification is based on payroll and loss data submitted annually to WCIRB. A history of employee claims can increase premiums.
- Other considerations: Safety programs and discounts may also influence the final premium cost.
Workers’ compensation cost vs. penalties in California: Which is higher?
For many employers, the decision isn’t only about cost, it’s about weighing premiums with the financial and legal risks of being uninsured.
| Factor | With workers’ compensation | Without workers’ compensation |
|---|---|---|
|
Upfront cost |
Monthly premiums based on payroll and risk |
No premiums |
|
Medical costs |
Covered by insurance |
Paid out of pocket |
|
Legal exposure |
Limited (employees generally can’t sue) |
Full liability and lawsuits |
|
Business operations |
Continue as normal |
Risk of stop-work orders |
|
Penalties |
None if compliant |
Fines starting at $10,000 and possible jail time |
In most cases, the cost of coverage is significantly less than the potential financial and legal consequences of operating without it.
How can California business owners save money on workers’ compensation?
Classifying employees accurately can help reduce the risk of overpaying for coverage and avoid misclassification fines. Some employers also opt for pay-as-you-go programs that base premium payments on actual payroll instead of estimates, which can improve payment accuracy and may waive the upfront deposit, helping with cash flow.
When it comes to coverage, employers can purchase a policy from a licensed, independent insurance company or the State Compensation Insurance Fund or choose to self-insure if they meet state approval and financial requirements. Commercial broker-agents can assist with the first two options, and reviewing these paths together can make it easier to compare them without suggesting that one is always the better choice.
What are the penalties for not having workers’ compensation insurance?
Going without workers’ compensation insurance can put a business at serious risk, including legal penalties, operational disruption, civil liability and out-of-pocket costs, as well as possible reimbursement to a state trust fund.
- Liability for medical bills and lawsuits: If an employee is injured or becomes ill due to work and the business is not properly insured, the employer may be responsible for all related costs. The employee may also file a civil action against the employer.
- Stop orders: The California Division of Labor Standards Enforcement can issue a stop order to uninsured employers, shutting down operations until coverage is obtained. The agency may also impose fines for noncompliance.
- Imprisonment and fines: Failure to carry workers’ compensation insurance is a misdemeanor under California law, punishable by up to one year in county jail or fines starting at $10,000 and reaching up to double the cost of the required premium. In some cases, both penalties may apply, along with additional fines of up to $100,000.
- Reimbursement of the Uninsured Employers’ Benefit Trust Fund (UEBTF): Employers who do not secure coverage, qualify as self-insured or pay required benefits may have to reimburse the state’s UEBTF if an employee files a claim with the fund.
Frequently asked questions about California workers’ compensation insurance
What do I risk by not having workers’ compensation insurance?
Failing to carry workers’ compensation when required is a criminal offense. Employers who break California workers’ compensation laws may be subject to fines and penalties, imprisonment, civil lawsuits and stop work orders preventing the use of employee labor. If an employee is hurt on the job, the employer may also be responsible for paying all related medical bills out of pocket.
Who is exempt from workers’ compensation insurance in California?
As long as they are not engaged in roofing, sole proprietors in California are generally exempt from workers’ compensation regulations.
Do self-employed workers, LLCs or single-member LLCs need workers’ compensation in California?
Any LLC with at least one employee is required to carry workers’ compensation in California. However, executive officers and directors may choose to exclude themselves from California workers’ compensation benefits if they fully own the corporation.
What can delay ACH payroll?
Affordable Health Care (ACH) payroll may be delayed if the employer misses the daily cut-off time or exceeds the transfer limit. Pay days that fall on federal holidays will also push ACH payments to the next business day.
California workers’ compensation bottom line
California workers’ compensation is more than just an insurance purchase. For employers, it’s a compliance requirement; for employees, it’s a defined benefit system; and for both, it’s a time-sensitive process once an injury is reported. It’s also a financial risk decision, since the penalties for going uninsured can be severe. Key details to verify include who must carry coverage, which exemptions apply, what employers must do within one working day after a reported injury, what benefits and deadlines apply to employees, how premiums are determined and what consequences may follow if required coverage is missing.
This guide is informational only and intended as a starting point for analyzing an employer’s workers’ compensation obligations. It is not a comprehensive resource of requirements and provides practical information with the understanding that ADP and its affiliates are not rendering legal, tax or other professional advice. Employers should consult their tax or legal advisor for guidance specific to their situation.
