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California Payroll And Workers' Compensation Rules

California payroll professionals play an important role in workers' compensation administration. Payroll records provide critical wage and employee information used to administer workers' compensation claims, calculate benefits, support insurance audits, and document an employer's compliance with California law.

Understanding California workers' compensation rules is especially important for payroll professionals who are responsible for maintaining employee records, calculating wages, processing payroll after workplace injuries, responding to workers' compensation claims, or providing payroll information to an employer's insurance carrier or third-party administrator.

California Payroll And Workers' Compensation Compliance Overview

At A Glance

• California generally requires employers with one or more employees to maintain workers' compensation coverage
• Part-time employees are generally covered when they meet the applicable definition of employee
• Certain independent contractors and other workers may be excluded from coverage
• Employers generally obtain workers' compensation insurance from an authorized insurance carrier
• Qualifying employers may apply to become self-insured
• Employers must post required workers' compensation information at the workplace
• Employers must provide new employees with required workers' compensation information
• Employees generally must notify their employer of a work-related injury within 30 days
• Employers generally must provide a DWC-1 claim form within one working day after learning of a work-related injury or illness
• Employers generally must report an occupational injury or illness to the claims administrator within five days
• California generally requires a workers' compensation claim to be filed within one year, subject to applicable exceptions
• Payroll records can be used to establish an injured employee's average weekly earnings
• California workers' compensation benefits can include medical care, temporary disability, permanent disability, supplemental job displacement benefits, and death benefits
• The California Division of Workers' Compensation administers the state's workers' compensation system

California Workers' Compensation Employer Requirements

California employers generally must maintain workers' compensation coverage when they employ one or more employees. Employers may obtain coverage through an authorized insurance carrier or, if they qualify, become self-insured.

Employers must also satisfy California's workplace notice and employee information requirements. Required workers' compensation information must be posted in a conspicuous location, and new employees must receive information explaining their workers' compensation rights and responsibilities.

California employers cannot require employees to pay for the employer's workers' compensation insurance premium. Workers' compensation insurance is generally considered a cost of doing business.

California Workers' Compensation Insurance

California employers generally comply with the workers' compensation requirement by purchasing coverage through an insurer licensed and authorized to write workers' compensation policies in California.

Qualifying employers may apply to become self-insured. Self-insurance requires an application, financial qualifications, and approval by the California Department of Industrial Relations. California also permits group self-insurance arrangements that allow qualifying employers to pool resources to meet financial requirements.

California Workers' Compensation Coverage For Multistate Employers

Employers with employees who work in multiple states should review California workers' compensation requirements when employees perform work in California. The employer's insurance policy should be reviewed to ensure that California exposures are properly covered.

Payroll should maintain accurate work-location information because an employee's state of employment can affect workers' compensation administration, insurance reporting, payroll records, and claims handling.

California Workers' Compensation Coverage Requirements

How Many Employees Trigger Workers' Compensation Coverage In California?

California generally requires employers with one or more employees to maintain workers' compensation coverage. The requirement can apply to an employer with only one employee, so businesses should not assume that a small workforce eliminates their workers' compensation obligations.

California law contains specific rules and exclusions involving certain workers and employment relationships. Employers should review the actual working relationship and applicable legal requirements when determining whether an individual is covered.

Are Part-Time Employees Covered?

Part-time status does not automatically eliminate an employer's workers' compensation obligations in California. Part-time and temporary employees may be eligible for workers' compensation benefits when they meet the applicable definition of employee.

Are Independent Contractors Covered?

Independent contractors may be treated differently from employees under California workers' compensation law. California has specific rules governing worker classification, and employers should carefully evaluate the actual working relationship rather than relying solely on a worker's title or contract language.

Worker classification can affect workers' compensation, payroll, unemployment insurance, wage requirements, and other employment obligations, so employers should obtain appropriate professional guidance when classification is uncertain.

California Workers' Compensation Injury Reporting

Employees and employers have specific responsibilities when a workplace injury or illness occurs. California generally requires employees to report a work-related injury or illness to their employer within 30 days. Employees should report injuries as soon as possible because prompt reporting can help avoid delays in receiving medical care and other benefits.

Once an employer learns about a work-related injury or illness, the employer generally must provide the employee with a DWC-1 claim form within one working day. The employer must also complete the applicable employer information and forward the claim documentation to the claims administrator.

California Employer Report Of Injury

California employers generally must complete the Employer's Report of Occupational Injury or Illness and send it to the claims administrator within five days after knowledge of the injury or illness. Employers should follow their insurance carrier or third-party administrator's reporting procedures in addition to satisfying applicable state requirements.

Payroll should not wait until payroll processing is affected before communicating a workplace injury. When an employee reports an injury, payroll should follow the employer's established procedure and promptly communicate relevant information to HR, management, safety personnel, and the workers' compensation administrator.

California DWC-1 Claim Form

California employers generally must provide a DWC-1 claim form to an employee within one working day after learning about a work-related injury or illness. The employee completes the employee portion and returns the form to the employer.

After receiving the completed claim form, the employer must provide a copy to the employee and forward the claim form and applicable injury report to the claims administrator. California also requires appropriate medical treatment to be authorized while the claim is being investigated, subject to the requirements and limitations established by law.

Employee Notice Of Injury

California generally requires an employee to notify the employer of a work-related injury or illness within 30 days. Employees should report injuries immediately whenever possible, including injuries that initially appear minor or illnesses that develop gradually.

Prompt notice allows the employer to investigate the incident, arrange medical treatment, provide the DWC-1 claim form, notify the claims administrator, and begin the workers' compensation process.

California Workers' Compensation Claim Filing Deadline

California generally requires a workers' compensation claim to be filed within one year of the date of injury. Different rules can apply to occupational diseases, cumulative injuries, minors, and other circumstances, so the applicable filing deadline should be verified for the individual claim.

California Payroll Records And Workers' Compensation

Accurate payroll records are essential when a workers' compensation claim requires information about an employee's wages. California uses average weekly earnings and other wage information when determining certain workers' compensation benefits, making historical payroll information particularly important.

Payroll departments should be prepared to provide information such as.

• Employee name and identification information
• Date of hire
• Date of injury
• Employment status
• Job title and classification
• Regular wages
• Gross earnings
• Hours worked
• Overtime
• Bonuses and other compensation
• Commissions
• Tips
• Fringe benefits
• Periods of unpaid leave
• Wage changes
• Pre-injury earnings
• Post-injury earnings
• Modified-duty wages
• Salary continuation payments
• Other compensation information relevant to the claim

California workers' compensation administrators may need information about wages, overtime, bonuses, commissions, tips, and other forms of income when determining applicable benefits. Payroll should retain supporting documentation rather than relying solely on a current payroll register.

How California Payroll And Workers' Compensation Work Together

Workers' compensation and payroll are closely connected. When an employee is injured at work, payroll may be asked to provide historical earnings, wages, hours worked, bonuses, employment dates, and post-injury earnings. Accurate payroll information can help the employer, insurer, or claims administrator establish the employee's applicable wage information and administer benefits correctly.

Payroll may also become involved when an injured employee misses work because of a workplace injury, returns to work with medical restrictions, works reduced hours, performs modified or light-duty work, receives wages after returning to work, or receives salary continuation. For these reasons, California payroll departments should have a documented process for responding to workers' compensation claims and producing historical payroll information.

California Workers' Compensation Benefit Calculations

California workers' compensation benefits are calculated under state law using applicable statutory formulas, wage information, medical findings, and other factors. Benefits can include medical care, temporary disability, permanent disability, supplemental job displacement benefits, and death benefits for qualifying claims.

Payroll professionals should provide complete and accurate wage information to the employer's insurance carrier, self-insured program, or claims administrator rather than attempting to independently determine the employee's final workers' compensation benefit.

Average Weekly Earnings

California considers an employee's average weekly earnings when determining certain workers' compensation benefits. The applicable calculation can depend on the employee's earnings history, method of compensation, and other circumstances surrounding the employment.

Payroll professionals should therefore preserve sufficient historical payroll information to support the applicable wage calculation. This can include regular wages, overtime, commissions, bonuses, tips, and other compensation that may be relevant under California law.

Temporary Disability Benefits

California provides temporary disability benefits for qualifying workplace injuries or illnesses that prevent an employee from performing their usual job while recovering. Temporary disability benefits generally replace a portion of wages lost because of the work-related injury, subject to applicable statutory limits.

Payroll should accurately track periods when the employee is unable to work, returns to work, works reduced hours, or performs modified duties so that the claims administrator has accurate information for benefit administration.

Permanent Disability Benefits

California workers' compensation law provides permanent disability benefits when a work-related injury or illness results in lasting impairment that affects an employee's ability to earn a living. The benefit amount depends on factors established by California law, including the employee's impairment rating, age, occupation, and date of injury.

Payroll professionals generally will not determine the medical impairment rating, but payroll records may still be relevant to the administration of the claim.

Supplemental Job Displacement Benefits

Qualifying employees who are unable to return to their former job because of a permanent work-related disability may be eligible for supplemental job displacement benefits. These benefits can provide assistance with retraining or skill enhancement when the employee cannot return to the previous occupation.

Payroll may be involved in documenting the employee's employment status, wages, work restrictions, and return-to-work status when requested by HR or the claims administrator.

Death Benefits

California workers' compensation law provides death benefits to qualifying spouses, children, or other dependents when an employee dies as a result of a work-related injury or illness. The amount of the benefit depends on factors including the number and status of dependents.

Reasonable burial expenses may also be covered subject to applicable California limits. Payroll may be asked to provide employment, wage, and compensation information when a fatal workplace injury claim is administered.

California Workers' Compensation Medical Care

Workers' compensation benefits include medical treatment reasonably required to cure or relieve the effects of a work-related injury or illness. Employers and claims administrators may use Medical Provider Networks and other procedures established under California workers' compensation law.

When an employee reports a work-related injury, payroll should promptly follow the employer's established process and coordinate with HR and the claims administrator. Payroll should also accurately document periods of absence, return-to-work dates, and applicable wage information.

California Medical Provider Networks

California employers and insurers may use Medical Provider Networks to provide medical treatment to injured employees. When an injury is reported and an employee is covered by an MPN, applicable employee notification requirements must be followed.

Payroll generally will not administer the medical provider network, but payroll may need to coordinate with HR and the claims administrator when medical restrictions or return-to-work information affects payroll processing.

California Workers' Compensation And Modified Duty

An injured employee may return to work with restrictions or modified duties. When that happens, payroll should coordinate with HR, management, the employee's supervisor, and the workers' compensation administrator.

Payroll should document.

• The date the employee returned to work
• Hours worked
• Wages earned
• Changes in job duties
• Modified or light-duty assignments
• Changes in compensation
• Salary continuation
• Periods of absence
• Other payments related to the employee's workers' compensation status

Accurate post-injury wage information can be particularly important when determining whether an employee has experienced a reduction in earnings and when administering applicable workers' compensation benefits.

California Workers' Compensation And Employee Classifications

Employee classification is an important component of workers' compensation administration. Payroll should maintain accurate information about job titles, departments, work locations, job duties, employee status, compensation, and changes in duties or work assignments.

When an employee's duties change substantially, payroll and HR should communicate the change to the appropriate workers' compensation or insurance personnel. Accurate classification information can help support insurance administration, audits, claims management, and payroll reporting.

California Workers' Compensation Compliance Checklist

• Determine whether the business is required to maintain California workers' compensation coverage
• Review the workforce for covered employees and applicable exclusions
• Review independent contractor classifications
• Confirm that employees working in California are properly covered
• Review workers' compensation requirements for multistate employees
• Obtain coverage through an authorized insurance carrier or qualify for self-insurance
• Maintain required workers' compensation notices and posters
• Provide required workers' compensation information to new employees
• Maintain accurate employee classifications
• Maintain complete payroll and wage records
• Establish a procedure for reporting workplace injuries
• Provide the DWC-1 claim form within one working day after learning of a reported injury or illness
• Complete and submit the required employer injury report within the applicable deadline
• Know the employer's insurer or third-party administrator reporting procedure
• Track pre-injury earnings
• Track post-injury earnings
• Maintain records of modified-duty work
• Maintain documentation of salary continuation
• Provide accurate payroll information to the claims administrator when requested
• Monitor changes to California workers' compensation laws and administrative requirements

Payroll Training Resources

Payroll professionals responsible for workers' compensation administration should understand how workers' compensation rules interact with payroll records, wage calculations, employee classifications, injury reporting, benefits, and payroll processing. Payroll Training Center provides payroll education and training for professionals responsible for payroll compliance, wage administration, employee records, and related employment requirements.

Recommended Workers' Compensation Training

• Online Workers' Compensation Training

  

  Learn the fundamentals of workers' compensation, including claims, benefits, employer responsibilities, and return-to-work considerations.

• Workers' Comp Premium Control: Experience Mods, Classifications, and Audit Mastery

  Develop a stronger understanding of workers' compensation classifications, experience modification factors, premium management, and insurance audits.

• Workers' Comp Workers' Recovery Professional Associate Certification

  Build specialized knowledge for professionals involved in workers' compensation and employee recovery.

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