Missouri follows 'pure' comparative fault. What does that mean for my car accident claim?

Missouri's pure comparative fault rule (RSMo § 537.765, as established in Gustafson v. Benda, 661 S.W.2d 11, Mo. banc 1983) means that a plaintiff's negligence reduces their recovery proportionally but does NOT bar recovery entirely, regardless of how high the plaintiff's fault percentage is. How it works: (1) Fault apportionment: after a trial, the jury assigns fault percentages to each party whose negligence contributed to the accident. Percentages must total 100% across all parties (defendants, plaintiff, and any non-party third parties whose fault is raised by defendants under RSMo § 537.765); (2) Recovery formula: the plaintiff's total damages are multiplied by (100% minus plaintiff's fault percentage). Example: $200,000 total damages; plaintiff 70% at fault; plaintiff's recovery = $200,000 × 30% = $60,000; (3) No recovery bar: unlike Indiana (51% bars recovery), Tennessee (50% bars recovery), or the old contributory negligence rule, Missouri's pure comparative fault allows the 99%-at-fault plaintiff to still recover 1% of damages; (4) Non-party fault: Missouri's comparative fault statute allows defendants to submit evidence of fault attributable to non-parties (absent third parties) to reduce the defendant's own share. If a defendant proves a non-party was 40% at fault, the defendant is only responsible for the remaining percentage of the plaintiff's damages attributable to the defendant; (5) Joint and several liability: Missouri modified joint and several liability through RSMo § 537.067. Defendants found less than 51% at fault are only severally (proportionally) liable. Defendants found 51% or more at fault remain jointly and severally liable for the entire judgment. This allows a seriously injured plaintiff to collect the full judgment from a majority-at-fault defendant even if a less-culpable co-defendant cannot pay their share.

Missouri's car accident SOL is 5 years. How does that compare, and when does the clock start?

Missouri's 5-year statute of limitations for personal injury claims (RSMo § 516.120(4)) is among the longer SOLs for car accidents in the United States, compared to: Tennessee (1 year — shortest in the US among major states), Indiana (2 years), Florida (2 years after 2023 reform), Illinois (2 years), California (2 years), and Missouri (5 years) — a Missouri accident victim has more than twice the time to file as an equivalent Indiana victim. When the 5-year clock starts: (1) General rule: the SOL begins running on the date of the accident (the occurrence of the injury); (2) Discovery rule exception: Missouri courts recognize the discovery rule for latent injuries — if the injury was not immediately apparent and a reasonable person would not have known of it, the SOL begins when the plaintiff knows or should know of both the injury and its cause. Latent injury claims (like soft-tissue injuries that develop symptoms weeks after the accident) benefit from this exception; (3) Claims against minors: claims involving minor plaintiffs are tolled until the minor reaches age 21 (RSMo § 516.170). A 10-year-old injured in a Missouri car accident has until age 21 to file — allowing time for the extent of developmental injuries to manifest; (4) Missouri Sovereign Immunity — claims against government: if the accident involved a MoDOT vehicle, state employee, or state-owned highway defect, different rules apply. Under RSMo § 537.600, the state has waived immunity for motor vehicle accidents but claims against the state go to the Court of Claims with its own procedural requirements; against cities and counties, notice of claim requirements (typically 90 days) are strict prerequisites to litigation; (5) Tolling for legal disability: if the plaintiff had a legal disability at the time of the accident (mental incapacity, minority), the SOL tolls during the disability (RSMo § 516.170).

What evidence should I gather after a Missouri car accident?

Missouri accident documentation — what to collect immediately: (1) Police report: Missouri law (RSMo § 300.150) requires police to be called for accidents involving injury, death, or property damage of $500 or more. Obtain a copy of the Missouri Traffic Accident Report from the Missouri State Highway Patrol (for highway accidents) or local police department. Missouri Highway Patrol reports are accessible online at MHPatrol.com; (2) Driver exchange: Missouri law (RSMo § 300.140) requires drivers involved in accidents to provide their name, address, driver's license number, and insurance information. Photograph all of this information; (3) Scene documentation: photograph all vehicles' damage from multiple angles, the road conditions (including skid marks, debris, road surface conditions, traffic control devices), and any visible injuries. The intersection or highway geometry can be relevant to fault apportionment under Missouri's pure comparative fault standard; (4) Witness information: names and contact information of bystanders — in Missouri cities (Kansas City, St. Louis) and rural areas, eyewitness accounts often vary significantly from the involved parties' accounts; (5) Medical treatment records: even if injuries seem minor, seek medical attention within 24-48 hours. Delayed treatment creates insurance adjuster arguments that injuries were not caused by the accident. In Missouri, treatment records from both emergency care and follow-up providers form the core of economic damages documentation; (6) Insurance information: your own insurer must be notified of the accident. Missouri's standard auto policies have cooperation clauses requiring prompt notification even if you were not at fault; (7) Commercial vehicle accidents (FMCSA data): if a commercial truck was involved, preserve and request FMCSA safety data — the trucking company's Safety Measurement System (SMS) score, recent inspections, violations, and electronic logging device (ELD) data. FMCSA ELD data is critical evidence in trucking accident cases on I-70 or other Missouri highways.

How does uninsured motorist coverage work in Missouri?

Missouri requires all auto insurance policies to include Uninsured Motorist (UM) coverage unless the insured waives it in writing (RSMo § 379.203). Missouri's UM requirements: (1) Mandatory offer at bodily injury liability limits: Missouri insurers must offer UM coverage at limits equal to the underlying bodily injury liability limits. The insured may accept lower UM limits or reject UM coverage entirely in writing; (2) Uninsured Motorist coverage: pays for the insured's bodily injuries caused by an uninsured driver. Missouri's minimum liability coverage is 25/50/10 — UM coverage at minimum would mirror this. Given that minimum limits are low ($25,000 per person), purchasing higher UM limits (100/300 or higher) is important; (3) Hit and run accidents: Missouri's UM coverage applies to hit-and-run accidents where physical contact between the vehicles occurred. Missouri requires physical contact — 'phantom vehicle' claims (where the insured claims to have been run off the road without contact) face higher evidentiary requirements; (4) Underinsured Motorist (UIM) coverage: Missouri permits but does not mandate UIM coverage. UIM coverage responds when the at-fault driver carried insurance but limits insufficient to cover all damages. For catastrophic injuries (TBI, spinal cord injury, death), UIM coverage is critical in a state with a minimum 25/50 requirement — a $1 million TBI claim against a minimum-limits driver leaves $975,000 uncompensated without UIM; (5) Missouri's UM 'stacking' litigation: Missouri courts have addressed stacking of UM limits across multiple vehicles in a household. Policy language controls stacking rights — anti-stacking provisions are enforced in Missouri when clear. Missouri allows inter-policy stacking (UM from two separate policies on two separate vehicles may be stackable) where the policies' anti-stacking exclusions are ambiguous; (6) UM arbitration: many Missouri UM policies include binding arbitration provisions for UM disputes. Arbitration clauses in Missouri UM cases have been upheld as consistent with Missouri's UM statute.

I was in an accident with a Missouri state employee or in a highway construction zone. Different rules?

Missouri's Sovereign Immunity Act (RSMo § 537.600 et seq.) creates specific rules for claims against government actors: (1) State employees in state vehicles: Missouri has waived sovereign immunity for claims arising from motor vehicle accidents involving state employees acting within the scope of employment (RSMo § 537.600(1)(2)). Claims against the State of Missouri go to the Missouri Court of Claims (RSMo Chapter 516, Court of Claims) — not regular circuit courts; (2) Missouri Department of Transportation (MoDOT) / MHTC: the Missouri Highways and Transportation Commission is a state entity — claims for highway defects, improper signing, or MoDOT employee negligence are Court of Claims matters. The Court of Claims has its own procedural rules and limitations, including a 2-year SOL for Court of Claims matters (RSMo § 516.145) rather than the general 5-year SOL; (3) Notice requirements for cities and counties: claims against Missouri municipalities and counties require notice. Under RSMo § 537.600 and specific city charter provisions, many Missouri cities (Kansas City, Springfield, St. Louis) require written notice of claim within 90 days of the incident as a prerequisite to filing suit. Failure to give timely notice can bar the claim entirely; (4) Highway construction zone accidents: if a MoDOT-hired construction contractor caused the accident, the contractor (private company) is typically the direct defendant, not MoDOT directly. However, contractor selection and supervision by MoDOT may create secondary liability theories. Construction zone signs, speed limit enforcement, and lane layout are potential MoDOT/contractor negligence issues; (5) Kansas City Police Department (unusual): Kansas City's police department is state-controlled — the Board of Police Commissioners is a state entity under RSMo § 84.350. Claims against KCPD officers may implicate state rather than municipal sovereign immunity analysis — a unique feature of Missouri law not applicable in most other states.

Car Accident Laws in Missouri (2026)

Missouri Car Accidents: what to handle first around vehicle damage proof, scene-photo discipline, and timing

A sharper statewide car accidents page for Missouri that clarifies decision sequencing, vehicle damage proof, and the choices that shape the file first.

Reviewed January 2026 3 min read Official-source grounded Ver en Espanol En Español

Key Takeaways

Pure comparative fault (RSMo § 537.765, Gustafson v. Benda 661 S.W.2d 11 Mo. 1983): recovery allowed even at 99% fault — 13 states with pure comparative; defendants <51% fault are only severally (proportionally) liable
5-year SOL (RSMo § 516.120(4)): among the longest for car accident claims; discovery rule applies for latent injuries; minors tolled until age 21 (RSMo § 516.170)
Minimum liability: 25/50/10 (RSMo § 303.025); UM coverage mandated unless waived in writing (RSMo § 379.203); physical contact required for hit-and-run UM claims
MoDOT/state employee claims: Missouri Court of Claims (not circuit court); 2-year SOL (RSMo § 516.145); municipal claims require 90-day notice of claim under city charters
I-70/I-44 freight corridor: FMCSA Safety Measurement System data on trucking companies accessible publicly; ELD records critical evidence in commercial vehicle accident cases

Key Numbers — Missouri All 50 states →

Filing Deadline 5 years

Fault Rule Pure Comparative

Insurance System At-Fault

Key Statute Mo. Rev. Stat. § 516.120

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Missouri is one of only thirteen states that follows pure comparative fault — meaning an injured party can recover damages even if they were 99% responsible for the accident, with recovery simply reduced by their fault percentage. This is the governing standard since the Missouri Supreme Court's landmark decision in Gustafson v. Benda, 661 S.W.2d 11 (Mo. banc 1983), which abolished Missouri's prior contributory negligence bar. Under § 537.765 RSMo, fault is apportioned among all parties and non-parties whose negligence contributed to the accident. The practical consequence: a Missouri driver who ran a red light at 60 mph and was found 85% at fault can still recover 15% of their damages from a defendant who was 15% at fault — a result impossible in Indiana (51% bar), Tennessee (50% bar), or Illinois (51% bar). Missouri's pure comparative fault system is significant in multi-vehicle accidents on I-70 and I-44, Missouri's major east-west commercial freight corridors, where multiple parties including commercial carriers, municipalities (road maintenance), and private drivers may share fault in complex commercial vehicle collisions.

Missouri's statute of limitations for personal injury from vehicle accidents is 5 years — RSMo § 516.120(4). This is meaningfully longer than Indiana's 2-year SOL or Tennessee's 1-year SOL, giving Missouri accident victims more time to develop their claims and negotiate without premature statute of limitations pressure. However, Missouri's 5-year SOL applies to bodily injury claims — claims for property damage also have a 5-year SOL (RSMo § 516.120(1)). Against the Missouri State Highways and Transportation Commission (MHTC) — the state agency responsible for Missouri's 33,600-mile state highway system — Missouri's Sovereign Immunity Act (RSMo § 537.600) creates different rules: MoDOT and MHTC have waived sovereign immunity for motor vehicle accidents involving state employees in the scope of employment, but claims against the state must be filed in the Missouri Court of Claims. St. Louis County's network of municipal courts (over 80 separate municipalities) creates a complex jurisdictional landscape where minor traffic infractions can escalate into municipal warrant and license revocation issues.

Missouri's Interstate and Freight Corridor Accident Context

Missouri's geographic position as the crossroads of the American highway system — I-70 running east-west from Kansas City through Columbia to St. Louis, I-44 southwest to Oklahoma, I-55 south toward Memphis, I-29 north toward Iowa, and I-64 east into Illinois — makes Missouri's highway system one of the most freight-intensive in the United States. Kansas City's intermodal freight complex (the second-largest rail hub in the United States after Chicago) and its major interstate interchanges generate heavy commercial truck traffic. The Federal Motor Carrier Safety Administration (FMCSA) regulations — Hours of Service (HOS) requirements, Electronic Logging Device (ELD) mandates, driver qualification rules — apply to trucking companies operating through Missouri, and FMCSA compliance data is publicly accessible through the Safety Measurement System (SMS). Missouri accident attorneys regularly obtain FMCSA SMS data on trucking companies involved in commercial vehicle accidents to establish patterns of safety violations as evidence of negligent entrustment and corporate negligence. Missouri's "complete streets" initiative for urban areas and Missouri DOT's highway improvement programs create ongoing construction zone accident liability issues where MoDOT contractor selection and supervision may add layers of defendants beyond the individual driver.

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