Can You File a Third-Party Claim on Top of Workers' Compensation in Missouri?
Yes. Workers' comp pays medical bills and part of lost wages regardless of fault, but if someone other than your employer caused the injury, you can file a separate third-party claim against them, including for pain and suffering.
Missouri workers' comp vs. third-party claims comes down to who caused the injury. Workers' compensation covers medical care and part of your lost wages, no matter who was at fault, but it's the only claim you can bring against your employer. When someone else caused the injury, such as a driver, a subcontractor, or an equipment maker, you can pursue them separately for the full value of the harm.
DM Injury Law has handled 1,354 workers' compensation cases through our St. Louis office, from warehouse injuries near Lambert to crashes involving delivery drivers on I-70. If you were hurt on the job anywhere in the St. Louis area, call us at 314-888-4444 for a free review of every claim that may be available.
Key Takeaways for Missouri Workers' Comp and Third-Party Claims
- Missouri workers' compensation pays for medical care and a portion of lost wages without requiring proof that the employer was at fault.
- Workers' compensation is generally the only remedy an injured worker has against their own employer in Missouri.
- A third-party claim can be brought against someone other than the employer, such as a negligent driver or equipment manufacturer, and can include pain and suffering.
- Missouri employers generally have a right to be repaid from a third-party recovery, after paying their share of attorney fees and expenses.
- Missouri workers' compensation claims generally must be filed within two years, while most third-party injury lawsuits must be filed within five years.
How Does Missouri Workers' Compensation Work?
Missouri workers' compensation is a no-fault system: your employer's insurance pays benefits for a work injury, whether or not anyone was careless. In exchange, Missouri's exclusive remedy law generally bars injured workers from suing their employer in court.
Depending on the injury, Missouri workers' compensation benefits can include:
- medical treatment related to the work injury
- temporary total disability payments while you can't work at all
- temporary partial disability payments if you return at reduced hours or pay
- permanent partial or permanent total disability benefits for lasting impairment
- death benefits for dependents when a work injury is fatal
Under Missouri's temporary disability law, wage benefits are generally two-thirds of your average weekly earnings, up to a state maximum. That cap means higher earners often recover a smaller share of their real paycheck.
What Workers' Compensation Doesn't Cover
Workers' compensation does not pay for pain and suffering, emotional distress, or loss of enjoyment of life. It also replaces only part of your paycheck, which means many injured workers fall behind even when every benefit is paid on time.
Those gaps are exactly what a third-party claim can fill. A claim against someone other than your employer can seek the full value of the harm, including the losses workers' compensation leaves out.
Workers' Compensation Deadlines in Missouri
Missouri's notice law requires written notice to your employer within 30 days of the accident, and missing that window can create problems if the employer was harmed by the delay.
Under the state's claim filing deadline, a workers' compensation claim must generally be filed within two years of the injury, or within three years if the employer failed to file the required injury report. A third-party lawsuit follows a different clock, and Missouri's five-year deadline gives most injured people five years to file.
When Does a Third-Party Claim Exist?
A third-party claim exists when someone other than your employer, or a coworker acting in the normal course of work, caused or contributed to your injury. On St. Louis job sites and roads, third parties often include:
- a driver who hit you while you were driving or making deliveries for work
- a subcontractor or another company working on the same construction site
- the manufacturer of a defective ladder, scaffold, forklift, or machine
- a property owner who controlled a dangerous condition where you were working
- a security, maintenance, or staffing company whose carelessness caused the injury
Each of these parties has its own insurance, separate from your employer's workers' compensation policy. Identifying them early is one of the most valuable steps in a workplace injury case.
Common Third-Party Scenarios in St. Louis
Third-party claims show up across the region's workplaces. A delivery driver rear-ended on I-64, an electrician hurt by another trade's unsecured materials during a high-rise renovation, and a warehouse worker injured by a forklift with a faulty brake can all have claims beyond workers' compensation.
In each example, the worker's employer didn't cause the harm. Someone else did, and that someone else's insurance becomes a second source of recovery.
When a Contractor Counts as Your Employer
Some companies that appear to be third parties are treated as your employer under Missouri law. Missouri's statutory employer law can make a general contractor or a company that hires out its usual business work responsible for workers' comp, which generally protects it from a separate lawsuit.
That's why construction injuries in downtown St. Louis or along the riverfront often need a careful look at contracts and job-site control. The company that seems most responsible isn't always the one that can be sued.
Workers' Compensation vs. Third-Party Claims at a Glance
Workers' compensation and third-party claims follow different rules from start to finish. This comparison shows the key differences for a Missouri worker:
| Feature | Workers' Compensation | Third-Party Claim |
|---|---|---|
| Do you have to prove fault? | No | Yes |
| Who pays? | Your employer's workers' comp insurer | The at-fault party's insurer |
| Pain and suffering | Not available | Available |
| Lost wages | Generally two-thirds of average weekly earnings, up to a state maximum | Full lost income and lost earning capacity |
| Filing deadline | Generally two years, or three if no injury report was filed | Generally five years for injury claims |
| Where it's decided | Missouri Division of Workers' Compensation | Circuit court |
The two claims can run at the same time. Pursuing one doesn't mean giving up the other.
What the Value Difference Looks Like in Our Files
Our St. Louis office's workers' compensation settlements have an average of $15,974, based on the 419 cases with a recorded settlement amount out of 875 handled. The largest recorded workers' comp settlement was $85,442, and the median case closed in 241 days, or about eight months.
Across 1,354 workplace injury cases in our St. Louis office, the median workers' compensation settlement is $10,000, and that number only reflects medical and wage-loss benefits. When a third party caused the injury, that's a separate claim entirely, for the full value of the harm.
Why the Gap Is So Large
Our Kansas City office shows the same pattern. Its median workers' compensation settlement is $12,544, while its median for general personal injury cases is $40,000, because injury claims outside workers' compensation can include losses that workers' compensation never pays.
Workers' compensation benefits don't depend on proving fault, while third-party claims are slower but not limited to a benefits schedule. The cases where we see clients leave real money on the table are almost always ones where nobody checked whether someone besides the employer bore some of the fault.
What Shapes a Third-Party Claim's Value
A third-party claim is valued like any other injury claim, so evidence of fault and the full scope of the harm determine the amount. Lost earning capacity, future medical needs, and pain and suffering can all be considered, along with available insurance.
Missouri's shared-fault rule also applies. If the injured worker is found partly at fault, the third-party recovery is reduced by that percentage. That makes early evidence about what the other party did wrong especially important.
How Do Workers' Compensation and Third-Party Claims Interact?
When you have both claims, your employer's insurer is generally entitled to be repaid from the third-party recovery for benefits it paid. The rules for that repayment differ between Missouri and Illinois, which matters for St. Louis-area workers.
Missouri's Repayment Rule
Under Missouri's subrogation law, the employer steps into the worker's shoes for the benefits it paid. When a third-party claim settles, the employer first pays its proportionate share of the attorney fees and expenses that produced the recovery, and the rest is divided under a statutory formula.
For example, if workers' compensation paid $30,000 in benefits and a third-party claim later settles, the employer is generally repaid from that settlement, minus its share of the fees and costs. The law also treats the worker's share as an advance against future workers' compensation benefits, so the timing of a settlement matters.
The repayment amount isn't always the final word. Employers and their insurers sometimes agree to reduce what they recover to allow a third-party settlement to close, especially when available insurance is limited.
How Illinois Handles It for Metro East Workers
Illinois uses a similar approach with different math. Under the Illinois Workers' Compensation Act, the employer is repaid from a third-party recovery but generally pays 25% of its reimbursement toward the worker's attorney fees, plus its share of costs.
Illinois deadlines differ, too. Under the Act's notice and filing rules, workers in Belleville or Granite City generally must notify their employer within 45 days and file a workers' comp claim within three years, or two years after the last benefit payment, whichever is later. A third-party injury lawsuit in Illinois generally must be filed within two years.
What to Do If Someone Other Than Your Employer Hurt You
The steps after a workplace injury protect both your workers' comp benefits and a possible third-party claim. Many St. Louis workers find these steps helpful:
- Report the Injury in Writing: Notify your employer within 30 days in Missouri, even if the injury seems minor.
- Get Medical Care: Follow the treatment plan, because medical records support both claims.
- Write Down Every Company at the Scene: Note contractors, delivery companies, drivers, and the brand and model of any equipment involved.
- Preserve Evidence: Photograph the scene, the equipment, and any vehicle damage before it's repaired or moved.
- Be Careful With Other Insurers: A third party's insurance company may ask for a statement or offer a quick settlement, and signing a release can end the third-party claim.
These steps don't require deciding anything today. They keep every option open while the full picture comes into focus.
FAQs about Missouri Workers' Compensation and Third-Party Claims
These are questions we often hear from St. Louis workers trying to sort out their options after an on-the-job injury.
Can I sue my employer directly in Missouri?
In most cases, no, because workers' compensation is the exclusive remedy against a Missouri employer. One exception applies when an employer required to carry workers' comp insurance fails to do so, in which case Missouri's uninsured employer law allows the injured worker to sue the employer instead.
What if a coworker caused my injury?
Missouri generally protects coworkers from lawsuits over workplace injuries. The exception is when a coworker's affirmative negligent act purposefully and dangerously caused or increased the risk of injury, which is a high bar that depends heavily on the facts. In most coworker cases, workers' compensation is the path to benefits, and it still pays to look closely at other companies or drivers involved in the incident.
Does workers' compensation pay for pain and suffering?
No, Missouri workers' compensation does not pay for pain and suffering. It covers medical treatment and partial wage replacement, along with disability benefits for lasting disability, while pain and suffering is available only through a third-party claim.
Can I file a third-party claim if I was in a car crash while driving for work?
Yes, a worker hurt in a crash while driving for work can usually receive workers' compensation benefits and bring a separate claim against the at-fault driver. Underinsured motorist coverage on the vehicle or your own policy may also apply if the other driver's insurance isn't enough. Commuting crashes are different, since injuries on the way to or from work often fall outside the scope of workers' compensation.
Will a third-party claim stop my workers' compensation benefits?
Filing a third-party claim doesn't stop your workers' compensation benefits. Once the third-party claim resolves, though, the employer's repayment rights and future credit can affect how much you receive.
Making Sure Every Claim Gets Counted
A workplace injury can affect your paycheck, your health, and your family's plans all at once. Making sure every responsible party is identified is how injured workers avoid leaving part of their recovery behind.
DM Injury Law has recovered over $1 billion for our clients. Our St. Louis workers' compensation lawyers review both sides of every workplace injury, and we work on a contingency fee basis. No Fee Unless We Win.
We're available 24/7. Call our St. Louis office at 314-888-4444 for a free consultation.
Past results obtained on behalf of clients afford no guarantee of future results and every case is different and must be judged on its own merits.
