Understanding Workers' Compensation Third-Party Lawsuits

January 27, 2026 | By Klezmer Maudlin PC
Understanding Workers’ Compensation Third-Party Lawsuits

Indiana workers' compensation benefits are designed to cover medical bills and a portion of lost wages, but they often leave significant gaps, especially when someone else’s negligence is to blame.

That’s where workers' compensation third-party lawsuits may help fill the benefit gaps.

These claims enable injured workers to step outside the workers' compensation system and pursue additional compensation from the responsible party, whether it’s a subcontractor, a property owner, or even a manufacturer of faulty equipment.

Navigating this process requires more than just knowing who to hold accountable for your injuries. It takes a thorough understanding of Indiana’s liability laws and how they interact with workers' compensation rules.

Are your workplace injuries the result of someone else’s negligent actions? Explore the following legal insights in more depth during a free consultation with Indianapolis workers' compensation attorneys from Klezmer Maudlin.

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  • Recover more than workers' comp allows. Workers' compensation benefits only cover medical bills and part of lost wages. A third-party claim can secure additional compensation for pain and suffering, full wage recovery, and other damages that workers' comp doesn’t provide.
  • Hold negligent third parties accountable. Indiana Code Title 22 prevents lawsuits against employers, but negligent third parties like subcontractors, property owners, or equipment manufacturers can still be liable. Legal professionals identify these parties and build a case against them.
  • Reduce the impact of liens on settlements. Workers comp insurance carriers often place liens on third-party settlements to recover benefits they’ve paid. Attorneys negotiate these liens to help maximize the amount you take home.
  • Meet critical deadlines and avoid mistakes. Third-party claims have strict deadlines and procedural rules that differ from those of workers' compensation. Lawyers handle these complexities to keep your case on track.
  • Identify all responsible parties. In cases like construction site accidents or multi-vehicle crashes, liability often involves multiple parties. Attorneys investigate every angle to hold all negligent parties accountable.

The Difference Between Workers' Comp and Third-Party Claims

Most people assume that when they get hurt at work, workers' compensation is the only system available to them.

While the Indiana work injury no-fault workers' comp system is designed to provide quick medical coverage and wage replacement without needing to prove anyone did anything wrong, it has a ceiling on what you can recover.

Workers' Comp


A third-party lawsuit operates differently. It steps outside the workers' comp bubble and enters the civil court system.

Here, you must prove that someone else—a third party—was negligent. This means showing that a person or company owed you a duty of care, breached that duty, and directly caused your injury.

The distinction matters because the damages available in civil court are often broader than those under the Indiana workers' compensation system. Typically, benefits do not pay for pain and suffering or the loss of enjoyment of life.

When Do You Have Grounds to File a Third-Party Liability Lawsuit in Indianapolis?

In many workplaces, especially in dynamic environments such as construction sites or delivery routes, multiple companies often operate in the same space. When lines blur between different organizations, negligence can come from unexpected directions.

Construction Site Accidents

Construction sites are prime examples of multi-employer worksites. You might work for a plumbing subcontractor, but the general contractor or a different subcontractor could leave a hazard that causes you injury.

If a scaffolding company fails to secure a platform properly, or a heavy equipment operator from another firm acts recklessly, you may have a valid construction site third-party injury claim in Indiana.

Motor Vehicle Accidents While Working

If your job involves driving—whether you are a delivery driver, a salesperson, or just running a work errand—and another driver hits you, you likely have two claims. The workers' comp claim covers your immediate medical needs because you were "on the clock."

However, the driver who hit you is a third party. A third-party auto accident during work in Indiana allows you to sue that at-fault driver just as you would in a standard car crash, while still receiving work comp benefits.

Defective Machinery and Equipment

Factory floors and warehouses rely on heavy machinery. Sometimes, the machine itself is the problem. If a piece of equipment malfunctions due to a manufacturing defect or a design flaw, the manufacturer of that machine could be liable.

A machinery defect third-party lawsuit in Indiana focuses on product liability rather than employer negligence, allowing you to seek damages from the company that built the unsafe tool.

Premises Liability Issues

Delivery drivers, home health aides, and sales representatives often work on property owned by others. If you slip on an icy walkway at a client’s office or fall due to a broken staircase at a delivery location, the property owner may be responsible.

A premises liability third-party work injury claim in Indiana holds property owners accountable for failing to maintain a safe environment for visitors.

Overcoming the "Exclusive Remedy" Rule

Indiana law establishes workers' compensation as the "exclusive remedy" for claims against your employer, meaning you generally cannot sue your boss or co-workers for negligence. However, this immunity does not protect third parties whose actions contributed to your injury. Common examples of third parties include:

  • Subcontractors or contractors. On large projects, subcontractors or contractors from other companies may create unsafe conditions that lead to injuries.
  • Temporary staffing agencies. If you are placed at a job site by a staffing agency, the company supervising your work may be considered a third party.
  • Property owners. When injuries occur on property not owned by your employer, the property owner may be held liable for unsafe conditions.
  • Equipment manufacturers. Defective machinery or tools that cause injuries can lead to claims against the manufacturer or distributor.

Legal professionals analyze the relationships between these parties to determine where employer immunity ends and third-party liability begins. Misidentifying a defendant can result in a case dismissal, making it critical to have experienced legal guidance to navigate these complexities.

The Role of Negligence in Third-Party Lawsuits

In workers' comp, fault is irrelevant. In a third-party claim, fault is everything. You must establish that the third party acted negligently.

Proving negligence in a third-party work injury case involves gathering evidence that may not be part of the standard workers' comp investigation.

While the workers' comp insurance doctor examines your physical injuries, your legal team investigates the accident scene.

This might involve:

  • Securing surveillance footage before it is deleted.
  • Interviewing witnesses who are not employed by your company.
  • Consulting with accident reconstruction professionals.
  • Reviewing maintenance logs for vehicles or machinery.

Indiana follows a modified comparative fault system. This means that if you are found to be partially at fault for the accident, your recovery could be reduced. 

If you are more than 50% at fault, you may be barred from recovering damages entirely from the third party.

Insurance companies for third parties often try to shift blame onto the injured worker to use this statute to their advantage. A lawyer pushes back against these tactics to protect your right to compensation.

Filing both a workers' compensation claim and a third-party lawsuit in Indiana often involves subrogation, a process that can significantly impact your financial recovery.

When a workers' comp carrier pays for your medical bills and lost wages, they may place a lien on any settlement you receive from a third party.

Key aspects of subrogation include:

  • Reimbursement rights. Workers comp carriers can seek repayment from third-party settlement funds for benefits they’ve already provided.
  • Lien reduction mechanisms. Indiana law allows for negotiations to reduce the lien amount, especially when legal costs are involved.
  • Risk of losing settlement funds. Without proper management, a large portion of your settlement could go directly to the insurance company instead of covering your long-term needs.

Legal professionals play a critical role in negotiating these liens, ensuring that your recovery is protected and that the settlement you fought for doesn’t disappear into reimbursement.

Why Timing is Critical When Filing a Third-Party Liability Lawsuit in Indiana

Workplace accidents launch two separate timelines. The Indiana Workers' Compensation Board has its own deadlines for reporting injuries and filing applications for adjustment of claims.

Simultaneously, the statute of limitations for a third-party work injury in Indiana is typically two years from the date of the accident.

While this might sound like a long time, building a civil case takes months of preparation, evidence disappears, memories fade, and witnesses move away.

Waiting until your workers' comp claim is fully resolved before looking into a third-party claim can be a mistake. By then, the two-year deadline might have passed, or critical evidence might be lost.

Legal professionals coordinate these timelines, ensuring that your pursuit of civil damages does not interfere with your immediate workers' comp benefits, and vice versa.

The Impact of Third-Party Claims on Your Future

A third-party claim offers the opportunity to recover compensation beyond what workers' compensation benefits provide. These claims address the financial and personal losses that workers' comp often leaves uncovered, including:

  • Lost earning capacity. If your injury prevents you from returning to your trade or forces you into a lower-paying job, a third-party claim can help recover the difference in income.
  • Pain and suffering. Indiana law allows compensation for the physical and emotional toll of an injury, including chronic pain, sleepless nights, and the inability to enjoy daily activities.
  • Future financial security. Settlements or verdicts in third-party claims can provide a financial cushion to cover long-term needs, especially when workers' comp benefits eventually end.

What if your injury has left you wondering how to make up for lost income or cope with the lasting effects of your accident? A third-party claim could be the key to addressing these challenges. 

What to Expect During the Process

Pursuing a third-party claim involves several stages. Having a unified legal strategy throughout the process can help prevent inconsistencies from undermining your claims:

  • Investigation: Gathering police reports, accident reports, witness statements, and medical records.
  • Demand: Sending a formal demand to the at-fault party's insurance company outlining the liability and the damages.
  • Litigation: If a fair settlement cannot be reached, a lawsuit is filed. This triggers the discovery process, where attorneys exchange information and take depositions.
  • Mediation/Trial: Many cases are resolved through mediation, but some proceed to trial, where a judge or jury decides the outcome.

Throughout this process, your Indiana workers' comp claim may still be actively pursued. However, communication between the two proceedings is vital. What you say in a workers' comp deposition can be used against you in the civil case, and vice versa.

Workers' Compensation Third-Party Liability Lawsuit FAQs

What should I do immediately after a workplace injury involving a third party?

Document everything by taking photos of the scene, gathering witness information, and reporting the injury to your employer. Consult a lawyer to determine if a third party may be liable and to protect your rights.

How can a lawyer help if the third party denies responsibility?

A lawyer collects evidence, works with experts, and builds a case to prove the third party’s negligence. They handle negotiations and take the case to court if needed to fight for fair compensation.

Third-party claims involve complex rules, strict deadlines, and insurance tactics designed to reduce payouts. Without legal guidance, you risk losing compensation or making costly mistakes. A lawyer manages the process and helps maximize your recovery.

Contact Workers' Compensation Third Party Liability Lawsuit Lawyers For a Free Case Evaluation

If your injury was caused by someone you do not work for, or if it happened on a site not owned by your employer, looking into a third-party claim is a prudent step.

The laws governing these interactions are specific to Indiana and require a strategic approach to maximize recovery.

Third Party Liability Lawsuit


You do not have to figure out the complexities of subrogation liens or comparative fault statutes on your own.

The legal system provides a path to hold negligent parties accountable, and professional guidance ensures you are walking that path correctly.

Are you wondering if your workplace accident involves a third party who should be held responsible? 

Contact Indianapolis personal injury attorneys from Klezmer Maudlin P.C. online or at (317) 569-9644 to discuss the details of your potential claim during a free case evaluation.

Schedule a Free Consultation