How Illinois’ Comparative Negligence Rule Can Cut Your Settlement
Maybe you were looking at your phone for a second. You should have noticed the hazard before you hit it. Now you’re wondering if that one lapse wipes out your entire claim before it even starts.
It doesn’t, not automatically. The comparative negligence percentage Illinois courts assign to you determines how much your settlement shrinks, not whether you get anything at all, as long as you stay under one specific line.
Being Partly at Fault Doesn’t Automatically Mean Nothing
Illinois follows a rule called modified comparative negligence. Under 735 ILCS 5/2-1116, you can still recover damages as long as your share of fault doesn’t exceed 50 percent of what caused your injury.
This applies across the board: car accidents, slip and falls, workplace injuries, and most other negligence claims in the state. Partial responsibility reduces your recovery. It doesn’t erase it, at least not yet. Knowing where the comparative negligence percentage Illinois assigns to your case actually lands is what separates a real recovery from no recovery at all.
The Number That Actually Decides Everything
Fifty percent is the entire ballgame here. At 50 percent fault or less, your damages get reduced by your percentage, but you still walk away with something.
Cross into 51 percent, and the math changes completely. You don’t lose 51 percent of your claim. You lose all of it. The comparative negligence percentage Illinois assigns to you isn’t a sliding scale down to zero recovery. It’s a cliff at one specific number.
Why Insurers Chase Your Fault Percentage From the First Call
Every point of fault an adjuster can shift onto you directly reduces what they owe, and enough points can eliminate the payout. This is exactly why that friendly first phone call after an accident isn’t as casual as it feels.
A recorded statement where you say you “didn’t really look” or “might have been distracted” becomes raw material for building your fault percentage upward. Adjusters are trained to ask questions that invite exactly that kind of answer.
The 50-50 Tie Nobody Expects to Pay Out Still
Here’s a detail most people never hear from the other side. If fault splits exactly down the middle- 50 percent you, 50 percent the property owner- Illinois law still lets you recover. Your damages get cut in half, but half of something is nothing.
Adjusters rarely bring this up on their own. A dead-even split sounds like a wash to most people, but under 735 ILCS 5/2-1116, it isn’t.
What Kind of Evidence Shifts the Percentage
Fault percentages aren’t decided by gut feeling. Surveillance footage showing how long a hazard existed, witness accounts of what actually happened, and documentation of whether a hazard was marked or warned about all shape where the final number lands.
A property with no warning sign near a known spill looks very different from one with clear signage you walked past anyway. The specifics matter far more than any general sense of who seems more at fault, and that’s exactly where a fair comparative negligence percentage in Illinois cases actually gets built or torn down.
What This Means for Your Claim
If you’re worried that some share of blame disqualifies you entirely, that fear is usually bigger than the actual rule. The real question is where your fault percentage ends up, and that depends on evidence, not assumptions made on the phone with an insurance company.
At Slip & Fall Injury Lawyers, we work to keep your fault percentage accurate and push back when an adjuster tries to inflate it beyond what the facts support.
Frequently Asked Questions:
Yes, as long as your share of fault doesn’t exceed 50 percent under Illinois’s comparative negligence rule.
You can still recover, with your damages reduced by half rather than eliminated.
You’re barred from recovering any damages at all once your fault exceeds that threshold.
They’re building a fault percentage case, since every point shifted onto you reduces what they owe.
It applies broadly to negligence-based claims, including slip and falls, though some exceptions exist.
If an insurance company tries to pin more blame on you than the facts support, Slip & Fall Injury Lawyers can help you push back. Contact us to talk through what happened.
Legally Reviewed By
Attorney Jonathan Rosenfeld
The information on this page has been legally reviewed by Attorney Jonathan Rosenfeld, founder and managing partner of Rosenfeld Injury Lawyers LLC, a Chicago-based personal injury law firm. With decades of experience representing individuals injured in slip and fall accidents and other premises liability cases throughout Chicago, Mr. Rosenfeld is dedicated to protecting the rights of injury victims and helping them pursue the maximum compensation available under the law. His extensive legal knowledge and commitment to client advocacy ensure that the information provided is accurate, reliable, and aligned with current legal standards.