Illinois Comparative Negligence in Slip and Fall Injury Cases

A slip and fall on a wet floor at a Magnificent Mile store, an icy sidewalk near the Chicago Riverwalk, or a cracked pavement outside a Logan Square apartment can leave you with serious injuries and mounting medical bills. But here is something many injured people do not realize: even if you played some role in your own fall, you may still have the right to recover compensation under Illinois law. Comparative negligence rules in this state are built to protect injured people, not just property owners. Understanding how this law works, and how it applies to your specific situation in Chicago, can make all the difference in what you recover.

Table of Contents

• What Is Comparative Negligence Under Illinois Law?
• How Comparative Fault Applies to Slip and Fall Cases in Chicago
• The Role of Property Owner Duty of Care in Fault Determinations
• How Joint and Several Liability Interacts With Comparative Fault
• Common Defense Tactics and How They Affect Your Claim
• FAQs About Illinois Comparative Negligence in Slip and Fall Injury Cases

What Is Comparative Negligence Under Illinois Law?

Illinois has adopted modified comparative negligence under 735 ILCS 5/2-1116 as the standard for recovery of damages. This law governs every negligence-based personal injury case in the state, including slip and fall claims. The core idea is straightforward: fault can be shared between the injured person and the property owner, and the law accounts for that shared responsibility when calculating what you can recover.

Under modified comparative negligence, an injured party may recover damages only if they are less than 50% at fault for the injury or damages. The recovered amount may be reduced in proportion to the degree that the injured party was at fault. So, if you slipped on an unmarked wet floor in a River North restaurant and a jury finds you were 20% responsible because you were looking at your phone, your total damages would be reduced by 20%. You would still receive 80% of what you are owed.

The critical cutoff is 51%. Under modified comparative negligence, an injured party may recover damages only if they are less than 50% at fault for the injury or damages. Cross that threshold, and Illinois law bars you from recovering anything at all. This is why the percentage of fault assigned to you matters so much, and why it is worth fighting hard to keep that number as low as possible. Insurance adjusters and defense attorneys know this rule well. They will often try to shift blame onto you to reduce or eliminate your claim. Having a skilled Chicago personal injury lawyer in your corner helps ensure that does not happen.

How Comparative Fault Applies to Slip and Fall Cases in Chicago

Slip and fall cases are not always black and white. A property owner might argue you were wearing inappropriate footwear on a slippery tile floor in a Gold Coast boutique, or that you ignored a wet floor sign at a Wicker Park coffee shop. These arguments are designed to push your fault percentage higher. Under Illinois law, every percentage point matters because your compensation shrinks by that same amount.

Consider a practical example. You fall on an icy sidewalk outside a Lincoln Park apartment building. The landlord failed to salt the walkway after a winter storm. A jury determines your total damages are $100,000. They also find you were 30% at fault because you were rushing and wearing shoes with poor traction. Under 735 ILCS 5/2-1116, your award is reduced by 30%, leaving you with $70,000. That is still a meaningful recovery, and it is one you would have lost entirely under the old contributory negligence system Illinois used before 1986.

The Illinois Premises Liability Act (740 ILCS 130/) governs personal injury claims related to unsafe property conditions. Property owners and occupiers must maintain their premises in a reasonably safe condition and warn visitors of any known hazards. When they fail to do that, and you get hurt, comparative negligence becomes the lens through which both sides evaluate the case. The question is never just “did you fall?” It is “who bears how much responsibility for why you fell?” A qualified slip and fall attorney can investigate the property conditions, gather evidence, and build a case that keeps your fault percentage as low as the facts allow.

The Role of Property Owner Duty of Care in Fault Determinations

Before comparative fault percentages are assigned, the court must first establish that the property owner owed you a duty of care. The existence of a duty of care is held in Illinois state statute 740 ILCS 130/1. This law, the Premises Liability Act, establishes that property owners owe a duty of “reasonable care under the circumstances” to “invitees” and “licensees.” In plain terms, if you were a customer in a Chicago grocery store or a guest at a Hyde Park event venue, the owner had a legal obligation to keep the property reasonably safe for you.

What counts as “reasonable care” depends on the circumstances. A property owner who knew about a broken step near the entrance to a South Loop office building and did nothing about it for weeks has likely breached that duty. One who had a spill reported just moments before you walked through the door may have a stronger defense. The concept of duty means property owners owe lawful visitors a responsibility to keep the premises safe. Plaintiffs must also show the owner had actual or constructive knowledge of the hazard. The dangerous condition must directly cause the injury.

Constructive knowledge is especially important. It means the owner should have known about the hazard through reasonable inspection, even if no one reported it. A puddle that has been sitting on a supermarket floor for two hours is a classic example. The store had time to find it and fix it. When they did not, that failure supports your negligence claim. Comparative fault then becomes the question of whether you, as the injured person, also missed something you reasonably should have seen. An experienced slip and fall lawyer knows how to build the record that shifts the weight of responsibility where it belongs.

How Joint and Several Liability Interacts With Comparative Fault

Some Chicago slip and fall cases involve more than one responsible party. Think of a fall in a West Loop parking garage where both the property owner and a contracted maintenance company failed to address a known hazard. In those situations, Illinois law on joint and several liability under 735 ILCS 5/2-1117 comes into play alongside comparative fault rules.

Under 735 ILCS 5/2-1117, all defendants found liable are jointly and severally liable for a plaintiff’s past and future medical and medically related expenses. For other damages, the threshold matters: any defendant whose share of fault is 25% or greater is jointly and severally liable for all other damages. A defendant whose fault is less than 25% is only severally liable for those other damages. This distinction can significantly affect how much money you actually collect, especially if one defendant has limited resources.

Why does this matter in a slip and fall case? Because it determines who pays and in what proportion. If a janitorial company was 30% at fault and the building owner was 70% at fault, both could be on the hook for your medical bills under joint and several liability. Your ability to collect your full award is not limited by one party’s inability to pay. Sorting through these multi-party scenarios requires a careful legal analysis. The attorneys at Briskman Briskman & Greenberg understand how to identify every responsible party and pursue the full compensation you deserve. Contact a slip and fall attorney today to discuss the specific facts of your case.

Common Defense Tactics and How They Affect Your Claim

Insurance companies and defense attorneys in Illinois rely heavily on comparative negligence arguments to reduce or deny slip and fall claims. Knowing their tactics gives you a better chance of protecting your recovery. The most common argument is that you were not paying attention. They will point to your phone, your footwear, your pace, or even your familiarity with the property to argue you share a large portion of the blame.

Another frequent defense is the “open and obvious” doctrine. Under the Illinois Premises Liability Act, property owners generally do not owe a duty to warn of conditions that are open and obvious to a reasonable person. The duty of reasonable care does not include a duty to warn of or otherwise take reasonable steps to protect entrants from conditions on the premises that are known to the entrant, are open and obvious, or can reasonably be expected to be discovered by the entrant. However, this defense is not absolute. Courts have recognized exceptions when the property owner could reasonably anticipate that a person would be distracted or compelled to encounter the hazard anyway, such as near a busy CTA station entrance or a crowded Bridgeport market.

Witness statements, surveillance footage, incident reports, and photographs of the scene are all critical tools for countering these defenses. The sooner you act after a fall, the better your chances of preserving that evidence. Briskman Briskman & Greenberg can help you gather and protect the evidence needed to fight back against inflated fault percentages. Reach out to a slip and fall lawyer as soon as possible after your injury so that key evidence is not lost.

FAQs About Illinois Comparative Negligence in Slip and Fall Injury Cases

Can I still recover compensation if I was partly at fault for my slip and fall in Chicago?

Yes. Illinois follows modified comparative negligence under 735 ILCS 5/2-1116, which means you can still recover damages as long as your share of the fault is 50% or less. Your total compensation is reduced by your percentage of fault, but you are not completely barred from recovery unless your fault exceeds 50%.

What happens if the insurance company claims I was more than 50% at fault?

If the trier of fact, meaning a judge or jury, determines your fault is greater than 50%, you cannot recover any damages under Illinois law. However, an insurance company’s initial assessment is not the final word. You have the right to challenge that determination with evidence, witnesses, and legal arguments. An attorney can help you build a strong case against an inflated fault percentage.

How does comparative negligence affect my medical expenses specifically?

Under 735 ILCS 5/2-1117, all defendants found liable are jointly and severally responsible for your past and future medical and medically related expenses, regardless of how fault is distributed among them. This means your medical bills may be fully recoverable even if multiple parties share liability, as long as your own fault does not exceed 50%.

Does the open and obvious doctrine automatically eliminate my slip and fall claim in Illinois?

Not necessarily. While the Illinois Premises Liability Act (740 ILCS 130/) limits a property owner’s duty to warn of open and obvious hazards, courts recognize exceptions. If the property owner could have reasonably anticipated that someone would be distracted or forced to encounter the hazard, liability may still apply. The facts of each case matter, and this defense should be challenged with the help of an attorney.

How long do I have to file a slip and fall lawsuit in Illinois?

Illinois law generally gives injured parties two years from the date of the injury to file a personal injury lawsuit, under 735 ILCS 5/13-202. If the fall happened on government property, such as a Chicago sidewalk maintained by the city, shorter notice deadlines may apply. Missing these deadlines can permanently bar your claim, so contacting an attorney quickly after your injury is essential.

More Resources About Chicago and Illinois Slip and Fall Injury Laws

• Illinois Premises Liability Law for Slip and Fall Injuries
• Chicago Property Maintenance Codes and Slip and Fall Injuries
• Illinois Snow and Ice Laws for Slip and Fall Injuries
• Chicago Sidewalk Liability Laws for Slip and Fall Injuries
• Illinois Statute of Limitations for Slip and Fall Injuries
• Notice Requirements in Slip and Fall Injury Claims
• Trespasser vs Invitee vs Licensee in Illinois