Slip and Fall Comparative Negligence Calculator by State
Calculate how much your slip and fall settlement is reduced by your share of fault. Applies pure comparative (CA, NY), modified 50% bar (CO, GA), modified 51% bar (TX, IL, OH), or pure contributory negligence (NC, MD, VA, AL). Free.
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What is comparative negligence in a slip and fall case?
Comparative negligence is the doctrine that reduces a plaintiff's damages by the percentage of fault attributable to their own conduct. In a slip and fall case, the defendant property owner often argues the plaintiff was distracted, wearing inappropriate footwear, ignored warning signs, or walked through an obviously hazardous area. The jury (or insurance adjuster) assigns a fault percentage to each party — and the plaintiff's recovery is reduced by their share.
For example: a jury awards $100,000 in damages but finds the plaintiff 25% at fault for not noticing the wet floor. Net recovery is $100,000 x (1 - 0.25) = $75,000. The remaining 25% is borne by the plaintiff. This is why insurance adjusters aggressively push fault onto plaintiffs — even a 30-40% fault assignment can save the carrier tens of thousands.
Pure vs modified vs contributory rules by state
Pure comparative negligence (13 states): California, Florida, New York, Kentucky, Louisiana, Mississippi, Missouri, New Mexico, Rhode Island, South Dakota, Washington, Alaska, Arizona. The plaintiff recovers regardless of fault percentage — even 99% at fault still recovers 1% of damages. Most plaintiff-friendly rule.
Modified 50% bar (10 states): Colorado, Georgia, Idaho, Kansas, Maine, Nebraska, North Dakota, Oklahoma, Tennessee, Utah. The plaintiff recovers if they are LESS than 50% at fault (i.e., 49% or less). At exactly 50%, recovery is barred. Modified 51% bar (22 states): Texas, Illinois, Ohio, Pennsylvania, New Jersey, Michigan, Wisconsin, and most others. The plaintiff recovers if they are 50% or less at fault — barred at 51%+. Pure contributory negligence (5 jurisdictions): North Carolina, Maryland, Virginia, Alabama, District of Columbia. Even 1% plaintiff fault bars all recovery — the harshest rule in U.S. tort law. Plaintiffs in these jurisdictions face an existential hurdle.
Common slip and fall fault arguments
Defense attorneys typically raise: (1) open and obvious hazard — the danger was visible and the plaintiff should have avoided it; (2) inappropriate footwear — flip-flops or high heels were a contributing factor; (3) distraction — the plaintiff was on a phone or texting; (4) failure to use available handrail; (5) ignoring warning signs (the "wet floor" cone). Each argument can shift 10-30% of fault to the plaintiff.
Counter-arguments that reduce plaintiff fault: prior complaints to property owner about the hazard, surveillance video showing no warning signs, statute or municipal code violations (e.g., inadequate lighting under city building code), and expert testimony on floor coefficient of friction. The American Bar Association's tort and premises liability resources, plus Nolo's slip and fall guides, emphasize documenting the scene immediately with photos, witness statements, and incident reports.
Sources: americanbar.org Tort Section, nolo.com state premises liability guides, state appellate court rulings on comparative fault doctrines. Last updated: May 2026.