New Haven Workers' Compensation Attorney · July 9, 2026
Workers' Comp Is Not Always The End Of The Story: Third-Party Lawsuits In Connecticut
You generally cannot sue your employer for a Connecticut work injury, but you may be able to sue someone else who caused it. Here is how third-party claims work and what they can add.

A delivery driver is rear-ended on I-91 while running his route. A carpenter falls because a subcontractor removed a guardrail the day before. A machine operator loses two fingers to a press whose safety guard failed.
All three get workers' compensation. That part is settled, and it matters. Comp covers their medical care and weekly checks without requiring proof that anyone was at fault.
All three, though, may also have a second claim, and many injured workers never find out. Each of them was hurt, at least in part, by someone who was not their employer. In Connecticut, that person can be sued, even when the employer cannot.
The Bargain Behind Workers' Comp
Workers' compensation is built on a trade. You do not have to prove your employer did anything wrong, and in exchange, you generally cannot sue your employer for the injury, even when the employer was careless. Lawyers call this exclusivity, and it is why "can I sue my job?" usually gets a disappointing answer.
The trade has a second half that surprises people. Workers' comp pays no money for pain and suffering. It pays medical bills, a portion of lost wages, and fixed awards for permanent injuries. The comp system puts no dollar figure on months of pain, lost sleep, or the things you can no longer do with your kids. That is not because they do not matter, but rather because the system was never built to pay for them.
When Someone Else Caused Your Injury
While you generally cannot sue your employer, Connecticut law does not protect anyone else. When someone other than your employer caused or contributed to your injury, C.G.S. § 31-293 allows you to collect workers' compensation and also sue that third party for full damages.
In plain terms, the no-lawsuit rule shields your employer. It does not shield the stranger who ran the red light, the other company on the job site, or the manufacturer whose machine failed.
Where Third-Party Cases Come From
Most third-party claims come from a handful of recurring situations. If your injury fits one of these, the question deserves a closer look.
Driving for work. If you were driving for your job and another driver caused the crash, you likely have a workers' comp claim through your employer and a claim against the at-fault driver, the same as any other auto accident case.
Construction sites. Job sites are full of employers who are not yours. A general contractor, another trade's subcontractor, or a site owner whose negligence caused your injury may be responsible, even though your own employer is protected.
Defective machinery and equipment. When a machine, tool, or piece of safety equipment fails, the claim may run against the manufacturer or distributor as a product-liability case. These cases turn heavily on preserving the machine itself, before it is repaired, altered, or scrapped.
Someone else's property. Deliveries, service calls, and jobs at a client's building all put you on property your employer does not control. If a dangerous condition of that property caused your injury, the owner may be responsible.
In every one of these situations, the question is not whether you were hurt at work. It is who caused the injury.
What A Third-Party Case Adds
A lawsuit against a third party can seek what comp never pays: full lost wages rather than a percentage, pain and suffering, and loss of life's enjoyment.
For a minor injury, that difference may not justify a lawsuit. For a serious one, it can be the difference between benefits that keep the lights on and a recovery that reflects what the injury actually cost you. The two cases also have to be handled together, because your employer's insurer generally has a right to be repaid from a third-party recovery for the benefits it paid. That reimbursement can often be negotiated down, but if the two cases are not coordinated, it can swallow a large share of the settlement. How that coordination works is a topic for its own post.
Two Cases, Two Clocks
The third-party lawsuit runs on its own deadline, separate from the workers' compensation deadlines. Filing the comp claim does not stop the lawsuit clock. This catches people who did everything right on the comp side and assumed they were protected everywhere. If you have not formally filed your workers' compensation claim yet, our Form 30C explainer walks through that step. Bottom line, file it.
There is a second timing issue that has nothing to do with deadlines. The evidence in a third-party case changes fast. The machine gets repaired, the job site gets rebuilt, and the missing guardrail goes back up before anyone photographs it. The sooner this evidence is preserved, the better.
Why These Two Cases Should Be Handled Together
A third-party work injury case is really two cases at once: a workers' compensation claim and a personal injury lawsuit. Each one affects the other, so they have to be coordinated. Some firms handle one or the other. Our firm has handled both under one roof for seventy years.
If a driver, a contractor, a machine, or a property owner played any part in your work injury, it is worth a second set of eyes. Contact our office for a free consultation. We can tell you whether a third-party claim exists, what it could add, and how to pursue it without putting your comp benefits at risk.
Frequently Asked Questions
- Can I sue my employer for a work injury in Connecticut?
Generally no. Workers' compensation is usually the exclusive remedy against your employer for a workplace injury. In exchange, you do not have to prove your employer did anything wrong to receive benefits. There are narrow exceptions, but the more common path to a lawsuit runs through someone other than your employer.
- Who can I sue for a work injury if not my employer?
Anyone other than your employer whose negligence caused the injury. Common examples include the at-fault driver in a work-related crash, a contractor or subcontractor on a construction site, the manufacturer of defective equipment, and the owner of a property where you were working.
- Can I collect workers' comp and also sue a third party?
Yes, in general. Connecticut law allows an injured worker to receive workers' compensation benefits and also pursue a lawsuit against a responsible third party. The two cases interact, though. Your employer or its insurer may have a right to be repaid from the lawsuit recovery, so the cases need to be coordinated.
- What does a third-party lawsuit add that workers' comp does not pay?
Workers' compensation pays no money for pain and suffering, and wage benefits replace only a portion of your pay. A third-party lawsuit can seek full lost wages, pain and suffering, and loss of life's enjoyment. For a serious injury, the difference can be substantial.
- How long do I have to bring a third-party claim?
The lawsuit runs on its own deadline, separate from your workers' comp claim. For most Connecticut negligence claims, that deadline is two years from the injury, and some claims are shorter. Cases involving government entities can require written notice within a few months. Filing your comp claim does not preserve the lawsuit, and pursuing the lawsuit does not preserve the comp claim. Each has its own clock, which is a real trap for people who assume one filing covers everything.
