Most workplace injuries in California are resolved through the workers’ compensation system, which provides medical care, income replacement, and disability benefits. However, in certain rare circumstances, injured workers may have the right to file a third-party liability claim against someone other than their employer. This could include contractors, equipment manufacturers, property owners, or other negligent parties who contributed to the accident.
Consulting a trusted workers’ compensation law firm is critical to understanding when you can pursue these additional claims without jeopardizing your workers’ compensation benefits.
What is Third-Party Liability?
Third-party liability refers to the legal right to hold a party other than your employer responsible for an injury. Unlike workers’ compensation, which is a no-fault system, a third-party lawsuit requires proving negligence or intentional wrongdoing.
Examples include:
- A defective piece of machinery caused a serious injury
- A contractor failing to maintain a safe work environment
- Negligent property owners whose unsafe conditions contributed to a fall
- Reckless co-workers from another company
- Vehicle accidents caused by a third-party driver while performing work-related duties
Third-party claims often increase compensation potential, covering areas not fully addressed by workers’ compensation, such as pain and suffering, punitive damages, emotional distress, and attorney fees. In some cases, third-party suits can provide compensation for future medical care or ongoing rehabilitation that workers’ compensation may not fully cover.
How Third-Party Claims Differ from Workers’ Comp
Workers’ compensation claims are designed to provide quick, predictable benefits, but they have limitations:
- No compensation for pain and suffering– Workers’ comp only covers medical bills and lost wages
- Limited recovery – Permanent disability benefits are capped according to state guidelines
- Employer-focused – Claims are generally limited to the workplace context
- No punitive damages – Workers’ comp cannot punish a negligent third party
A workers’ compensation lawyer can help determine if a third-party claim is viable while keeping your workers’ compensation claim intact.

Determining Liability in Third-Party Cases
Proving third-party liability requires establishing several key elements:
- Duty of Care – The third party had a responsibility to act safely
- Breach of Duty– They failed to fulfill that responsibility
- Causation – Their breach directly caused or contributed to your injury
- Damages – You suffered measurable harm, including medical bills, lost income, or long-term disability
For example, if a construction worker is injured due to defective scaffolding supplied by a contractor, the contractor may be held liable for damages beyond what workers’ compensation provides. Even if your employer’s insurance covers part of the medical treatment, the third party may be responsible for additional pain, suffering, or lost earning potential.
Steps to Take if You Suspect a Third-Party Claim
Injured workers should act carefully to preserve their legal rights:
- Document the accident thoroughly: Take photos, gather witness statements, and record the date, time, and circumstances
- Notify your employer and insurance: Ensure your workers’ compensation claim is properly filed
- Avoid admitting fault: Statements like “It’s no one’s fault” can complicate later lawsuits
- Consult an attorney early: A workers’ compensation lawyer can evaluate potential third-party liability
Acting quickly is important because third-party claims are subject to statutes of limitations. Missing deadlines can prevent you from recovering additional compensation. Early legal guidance can also help determine whether your settlement strategy should coordinate with your workers’ compensation benefits to maximize total recovery.
Combining Workers’ Comp and Third-Party Claims
You can generally pursue a third-party lawsuit while maintaining your workers’ compensation benefits, but there are rules:
- Your workers’ comp insurer may seek reimbursement from third-party settlements to cover benefits already paid
- Coordinating claims ensures you do not unintentionally reduce compensation from either source
- Attorneys experienced in both areas, like a work injury law firm,can strategize to maximize recovery
In addition, combining claims may require careful documentation of medical treatment and work restrictions. Third-party settlements are often higher because they can include damages for emotional distress, ongoing therapy, or loss of enjoyment of life, which workers’ compensation cannot cover.

Common Scenarios for Third-Party Claims
Third-party claims often arise in industries with high-risk environments:
- Construction: Defective tools, subcontractor negligence, or unsafe site conditions
- Manufacturing: Equipment malfunctions or safety protocol failures
- Transportation: Vehicle collisions caused by third-party drivers or contractors
- Public spaces: Slips, trips, and falls due to negligent property maintenance
Even if your employer is immune from a personal injury lawsuit under workers’ compensation, responsible third parties may still be held liable. Some claims involve multiple defendants, which can complicate settlements and require skilled legal guidance.
Protecting Your Rights
Filing a third-party claim requires careful legal guidance:
- Do not sign agreements without attorney review
- Keep detailed medical records to support both claims
- Avoid posting details on social media that may affect credibility
- Maintain communication with both your workers’ compensation and third-party attorneys
An experienced workers’ compensation lawyer ensures that your claims are properly coordinated and protects you from errors that could reduce benefits. They can also negotiate settlements that maximize recovery while minimizing legal complications.

Seeking Justice Beyond the Workplace
While workers’ compensation provides vital protections, it may not fully cover all the financial and personal impacts of a serious workplace injury. In situations where a third party is at fault, filing a third-party liability claim can help injured workers recover additional damages, including medical expenses, lost wages, pain and suffering, and future rehabilitation costs.
The Law Offices of Harley Merritt has decades of experience representing injured workers throughout Colusa, Glenn, Butte County, and Yuba City. If you believe a third party contributed to your workplace injury, contact the Law Offices of Harley Merritt today for a free consultation and expert legal guidance to protect your rights and maximize your recovery.
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