Key Takeaways

  • California workers' compensation is mandatory for all employers with one or more employees
  • California has one of the highest workers' compensation rates in the nation due to high benefits
  • The Workers' Compensation Insurance Rating Bureau (WCIRB) calculates advisory pure premium rates
  • California prohibits employers from requiring employees to waive workers' comp rights
  • The state has specific penalties for uninsured employers including criminal prosecution
Last updated: January 2026

California Workers' Compensation Insurance

California has one of the most comprehensive workers' compensation systems in the nation.

Mandatory Coverage

California requires workers' compensation for all employers with one or more employees:

Who Must Be Covered

Worker TypeCoverage Required
Full-time employeesYes
Part-time employeesYes
Seasonal workersYes
Domestic workers (52+ hours/week)Yes
Independent contractorsGenerally no (but classification matters)

Exceptions

Limited exceptions exist for:

  • Sole proprietors (optional for themselves)
  • Partners (optional for themselves)
  • Corporate officers (may elect exemption)

Obtaining Coverage

California employers have two options for workers' comp coverage:

Coverage Options

OptionDescription
Private InsurancePurchase from admitted insurer
State Compensation Insurance Fund (State Fund)California's public insurer of last resort
Self-InsuranceLarge employers may self-insure with CDI approval

State Fund

The State Compensation Insurance Fund is:

  • A public enterprise fund (not tax-supported)
  • Required to accept all applicants
  • Competitive with private market
  • The largest workers' comp carrier in California

Rate Setting

California uses an advisory pure premium rate system:

WCIRB Role

The Workers' Compensation Insurance Rating Bureau (WCIRB):

  • Calculates advisory pure premium rates
  • Maintains class codes and experience mods
  • Collects loss data from insurers
  • Files advisory rates with CDI

Insurer Rate Filings

  • Insurers file their own rates with CDI
  • Must be actuarially justified
  • Competition exists despite rate regulation
  • Experience modification affects individual employer rates

Benefits

California workers' comp provides comprehensive benefits:

Benefit Types

BenefitDescription
Medical CareAll reasonable medical treatment
Temporary Disability2/3 of wages (up to weekly max)
Permanent DisabilityBased on impairment rating
Supplemental Job DisplacementVoucher for retraining
Death BenefitsTo dependents

Benefit Levels

California has among the highest benefit levels in the nation:

  • Higher temporary disability maximums
  • More generous permanent disability schedules
  • Comprehensive medical treatment guidelines

Penalties for Non-Compliance

California has severe penalties for uninsured employers:

PenaltyDetails
Civil PenaltyUp to $100,000
Criminal ProsecutionMisdemeanor or felony
Stop Work OrderCan shut down business
Personal LiabilityEmployer personally liable for claims
Double DamagesEmployee can sue for double damages

Exam Tip: California takes workers' comp compliance very seriously. Penalties include both civil and criminal consequences.

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California Workers' Compensation System
Test Your Knowledge

Which entity sets advisory pure premium rates for California workers' compensation?

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D
Test Your Knowledge

What is the maximum civil penalty for a California employer operating without workers' compensation insurance?

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B
C
D