Written/Reviewed by:
Larson Law Injury Lawyers
Last Updated: June 8, 2026
Read Time: 5 min
Every personal injury claim in Illinois is subject to a filing deadline known as the statute of limitations. If you fail to file your lawsuit within the required timeframe, you lose your right to pursue compensation, no matter how strong your case may be. Understanding these deadlines and the limited exceptions that may apply is critical to protecting your legal rights. An Addison, IL personal injury lawyer can evaluate your case and ensure you take action before time runs out.
The General Two-Year Rule
Under 735 ILCS 5/13-202, most personal injury lawsuits in Illinois must be filed within two years from the date of the injury. This applies to claims arising from car accidents, slip and fall incidents, dog bites, and most other accidents caused by another party’s negligence.
The two-year clock typically begins running on the date the injury occurs. In a car accident, that would be the date of the collision. In a premises liability case, it would be the date you were injured on the property.
Missing this deadline has serious consequences. Courts will almost certainly dismiss your case if you file even one day late, and the defendant will have no obligation to compensate you regardless of their negligence.
Wrongful Death Claims Have a Different Deadline
If a loved one died as a result of someone else’s negligence, the statute of limitations for a wrongful death claim is also two years under 740 ILCS 180/2. However, the clock starts from the date of death, not the date of the initial injury.
This distinction matters when there is a gap between the accident and the resulting death. If someone is injured in a truck collision and passes away six months later from complications, the wrongful death statute of limitations begins on the date of death.
Medical Malpractice Deadlines
Claims involving medical malpractice follow different rules. Under 735 ILCS 5/13-212, you must file a medical malpractice lawsuit within two years of the date you knew or reasonably should have known of the injury, but no more than four years after the date the negligent act occurred.
This “discovery rule” recognizes that patients may not immediately realize they have been harmed by a healthcare provider. For example, if a surgeon leaves a sponge inside a patient during an operation, the patient may not discover the problem until symptoms develop months or years later. The discovery rule gives that patient time to file once the injury becomes apparent, but the four-year outer limit still applies in most circumstances.
The Discovery Rule in Other Cases
The discovery rule can apply beyond medical malpractice in limited situations. Illinois courts have recognized that certain injuries may not be immediately discoverable, particularly in cases involving latent conditions or gradual harm.
However, this exception is narrow. Courts generally expect plaintiffs to exercise reasonable diligence in discovering their injuries. If a reasonable person would have identified the injury earlier, the statute of limitations may be deemed to have started at that point rather than when the plaintiff actually discovered the harm.
Tolling for Minors and Persons Under Legal Disability
Illinois law provides special protections for individuals who cannot protect their own legal rights. Under 735 ILCS 5/13-211, if the injured person is a minor (under 18) or is under a legal disability at the time the cause of action accrues, the statute of limitations is tolled, meaning it does not begin running, until the disability is removed.
For minors, this generally means the two-year clock does not start until they turn 18. A child injured at age 10 would have until age 20 to file a personal injury lawsuit. For individuals who are legally incapacitated, the statute is tolled until they regain capacity or a legal representative is appointed.
These tolling provisions exist to ensure that vulnerable individuals are not penalized for their inability to take legal action.
Claims Against Government Entities
If your injury was caused by a government employee or entity, different rules apply. Under the Illinois Court of Claims Act (705 ILCS 505), claims against the State of Illinois must generally be filed within two years, but additional notice requirements may apply.
For claims against local government units such as cities, counties, or municipalities, the Local Governmental and Governmental Employees Tort Immunity Act (745 ILCS 10) requires you to file a written notice of the claim within one year of the injury. Failing to provide this notice can bar your lawsuit even if you file within the general two-year period.
Government claims are complex and carry strict procedural requirements. Consulting with an Addison, IL car accident lawyer promptly after an accident involving a government vehicle or property is essential.
Do Not Wait to Take Action
Even though Illinois provides two years for most claims, waiting to consult an attorney is risky. Evidence disappears, witnesses forget details, and building a strong case becomes harder as time passes. Insurance companies also know that claimants who delay are often less prepared and may accept lower settlements.
If you have been injured due to someone else’s negligence, contact Larson Law Injury Lawyers today for a free consultation. We handle personal injury cases on a contingency fee basis, so you owe nothing unless we win.
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