Missouri Tort Reform laws determine how much time you have to file a mass tort claim, whether your state caps the damages you can recover, and how your own fault percentage affects your payout.
This Missouri tort reform guide covers every rule that matters if you are considering a mass tort lawsuit — statute of limitations deadlines, damage caps, comparative fault, and which major active lawsuits affect Missouri residents the most. Understanding Missouri tort reform before you talk to a lawyer helps you know what to expect.
Verified against Missouri statutes and official sources as of May 2026.
In This Missouri Tort Reform Guide:
Missouri Tort Reform Statute of Limitations
The statute of limitations is the deadline to file a lawsuit. Under Missouri tort reform rules, the time limit depends on the type of injury. Missing your deadline means you lose your right to sue entirely, regardless of how strong your case may be.
| Injury Type | Time Limit |
|---|---|
| Personal Injury | 5 years (RSMo 516.120). |
| Wrongful Death | 3 years from the date of death (RSMo 537.100). Tolled if defendant is absent from the state. |
| Product Liability | 5 years from the date the defective product caused injury (RSMo 516.120, same as general personal injury). |
| Medical Malpractice | 2 years from the date of the act of negligence (RSMo 516.105). |
Personal injury details: Minors: tolled until age 21, then 5 years to file. Government defendants: 90-day pre-suit notice required under Missouri Tort Claims Act.
Product liability details: Discovery rule applies — clock starts when injury is capable of ascertainment.
Medical malpractice details: Limited discovery rule applies ONLY for foreign objects left in the body and negligent failure to inform of test results — in those cases, 2 years from discovery or when patient should have discovered the negligence. Absolute 10-year statute of repose from the date of the negligent act. Minors: 2 years from 18th birthday or the 10-year repose period, whichever is later.
Discovery rule: YES. For general personal injury, the cause of action accrues when the damage is capable of ascertainment — meaning when a reasonable person would have discovered the injury. Courts apply an objective standard. For medical malpractice, the discovery rule is LIMITED — it only applies to foreign objects left in the body and negligent failure to inform of test results. There is no general discovery rule for other types of medical malpractice in Missouri.
Statute of repose: 10 years for medical malpractice (RSMo 516.105) from the date of the negligent act. 10 years for improvements to real property (construction defects). Missouri does NOT have a general product liability statute of repose — legislative proposals to add a 12-15 year product liability repose period have been debated but not enacted as of 2026.
These Missouri tort reform deadlines apply to most mass tort claims. However, some MDLs have their own rules — for example, the Camp Lejeune Justice Act created a special two-year filing window.
Always verify your specific deadline with a licensed attorney, as Missouri tort reform statutes may have exceptions not listed here.
Missouri Tort Reform Damage Caps
Damage caps limit how much money you can recover in a lawsuit, even if a jury awards you more. Missouri tort reform damage cap rules affect mass tort settlements and verdicts directly.
Understanding these limits helps you set realistic expectations for potential compensation under Missouri tort reform law.
| Damage Type | Cap |
|---|---|
| Non-Economic (Pain & Suffering) | NO CAP on non-economic damages in general personal injury or product liability cases. |
| Punitive Damages | NO CAP. |
| Medical Malpractice | YES — separate statutory cap on non-economic damages only. |
Non-economic damages details: Missouri only caps non-economic damages in medical malpractice cases (see med_mal_damage_cap). No cap on economic damages in any case type.
Punitive damages details: Missouri RSMo 510.265 originally capped punitive damages at the greater of 500000 or 5 times the net compensatory judgment. However, the Missouri Supreme Court declared this cap unconstitutional in 2014 (Lewellen v. Franklin), holding it violated the right to trial by jury under the Missouri Constitution. Punitive damages are now uncapped by statute but remain subject to federal Due Process Clause review. Exception: punitive damages in medical malpractice require clear and convincing evidence of intentional harm or malicious misconduct.
Medical malpractice cap details: Under SB 239 (2015), RSMo 538.210: non-catastrophic injuries capped at 400000 base (adjusted 1.7 percent annually); catastrophic injuries or wrongful death capped at 700000 base (adjusted 1.7 percent annually). As of 2026, the inflation-adjusted caps are approximately 481494 (non-catastrophic) and 842614 (catastrophic). Catastrophic is defined as quadriplegia, paraplegia, loss of two or more limbs, permanent cognitive impairment from brain injury, irreversible failure of a major organ system, or severe vision loss.
No cap on economic damages (lost wages, medical costs). SB 239 designates medical malpractice as a statutory cause of action (not common law) to survive constitutional challenge after the Missouri Supreme Court struck down the prior HB 393 (2005) caps in 2012.
Missouri tort reform caps can significantly reduce your recovery in a mass tort case. If Missouri caps non-economic damages, your pain and suffering award is limited regardless of injury severity.
Some caps have been challenged as unconstitutional in Missouri courts — check with a local attorney for the current status of any Missouri tort reform cap.
Missouri Tort Reform Comparative Fault Rule
Comparative fault determines whether you can recover damages if you share some responsibility for your injuries. Under Missouri tort reform rules, defendants in mass tort cases often argue that the plaintiff contributed to their own harm (for example, by continuing to use a product after a recall).
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Missouri follows a pure comparative fault system. This means you can recover damages even if you are mostly at fault for your injuries. However, your compensation is reduced by your percentage of fault. For example, if you are found 70% at fault and your damages are $100,000, you would recover $30,000.
Under pure comparative fault, the plaintiff’s damages are reduced by their percentage of fault but never completely barred. If a plaintiff is 30 percent at fault, they recover 70 percent of damages. If 50 percent at fault, they recover 50 percent. If 51 percent at fault, they still recover 49 percent. Even at 99 percent fault, the plaintiff recovers 1 percent of damages. This is more plaintiff-friendly than the modified comparative fault systems used by most states.
Joint and several liability: Modified joint and several liability (RSMo 537.067). Defendants found 51 percent or more at fault are jointly and severally liable for economic damages — meaning the plaintiff can collect the full economic damage award from that defendant alone. Defendants found less than 51 percent at fault pay only their proportionate share of damages (several liability only). Punitive damages are always several only — each defendant pays only the punitive amount attributable to their own fault percentage.
Notable Missouri Mass Tort Verdicts & Settlements
1) Ingham v. Johnson and Johnson (2018, St. Louis Circuit Court) — jury awarded 4690000000 to 22 women who developed ovarian cancer from talc baby powder; Missouri Court of Appeals reduced award to approximately 2120000000 on personal jurisdiction grounds. 2) Roundup NHL verdict (November 2023, Missouri) — jury awarded 1560000000 to three plaintiffs with non-Hodgkin lymphoma from Roundup exposure; later reduced on appeal to 611000000.
3) Roundup national class settlement (February 2026, filed in 22nd Judicial Circuit Court, City of St. Louis) — Bayer/Monsanto proposed 7250000000 tiered national class settlement to resolve tens of thousands of pending Roundup NHL claims.
Note: Individual settlement and verdict amounts vary dramatically based on the specific facts of each case. These examples are provided for general context only and do not predict what you might recover.
Active Mass Tort Cases Affecting Missouri Residents
Several major active Multidistrict Litigation (MDL) cases have significant numbers of plaintiffs from Missouri:
1) Roundup/Glyphosate — Monsanto (now Bayer) is headquartered in Creve Coeur/St. Louis, Missouri, making the state a central venue for Roundup litigation with massive plaintiff participation. 2) Talcum Powder/Talc — St. Louis was a major filing venue for J&J talc cases before venue reform (SB 7, 2019); Missouri produced the landmark 4.69 billion dollar verdict. 3) Opioids — Missouri AG participated in the 7.4 billion dollar Purdue Pharma settlement; the state operates the Missouri Opioid Settlements fund (moopioidsettlements.dmh.mo.gov) distributing funds to affected communities.
4) AFFF/PFAS — Missouri military installations and fire training facilities used AFFF foam; Missouri plaintiffs participate in the national AFFF MDL. 5) Hair Relaxer and Depo-Provera — GENERAL PARTICIPATION, no Missouri-specific data on plaintiff concentrations found.
If you live in Missouri and were affected by any of these products or exposures, you may be eligible to file a claim. Missouri tort reform deadlines and damage caps still apply to your case, so check our individual MDL pages for specific eligibility criteria.
Missouri Tort Reform Legislation
1) HB 393 (2005) — Comprehensive tort reform including 350000 medical malpractice non-economic damage cap, venue restrictions, punitive damage cap; med mal caps struck down as unconstitutional by Missouri Supreme Court in 2012 (Watts v. Lester E. Cox Medical Centers). 2) SB 239 (2015) — Reinstated medical malpractice non-economic damage caps at 400000/700000 with 1.7 percent annual inflation adjustment; redesignated med mal as statutory cause of action to survive constitutional challenge.
3) SB 7 (2019) — Major venue reform limiting out-of-state plaintiffs from filing in Missouri; requires venue in county where plaintiff was first injured; adopted Missouri Supreme Court ruling from Johnson & Johnson v. Burlison restricting joinder as venue tool. 4) Proposed 2026 bills (HB 1645 and others) — Would reduce general personal injury SOL from 5 years to 2 years; not yet enacted as of May 2026.
These Missouri tort reform laws directly affect how mass tort claims are filed, what damages you can recover, and how long you have to act.
Always verify the current status of any law with the Missouri State Bar Association or a licensed attorney.
Additional Missouri Tort Rules
1) VENUE REFORM (SB 7, 2019): Tort actions where plaintiff was injured in Missouri must be filed in the county where injury occurred; out-of-state plaintiffs must file where defendant’s registered agent is located or in plaintiff’s county of residence if in Missouri. This significantly reduced forum shopping in St. Louis. 2) ASBESTOS TRUST TRANSPARENCY: Missouri legislature has pursued legislation (SB 575 and successors) requiring disclosure of asbestos trust fund claims at the outset of litigation and allowing trust claim evidence at trial.
3) MEDICAL MALPRACTICE — STATUTORY CAUSE OF ACTION: SB 239 (2015) reclassified med mal claims as statutory rather than common law to survive the constitutional challenge that struck down the 2005 caps.
4) GOVERNMENT CLAIMS: Missouri Tort Claims Act requires 90-day pre-suit notice to government defendants. 5) MINORS TOLLING: Statute of limitations tolled until the minor reaches age 21 (not 18) for personal injury claims; for med mal, 2 years from 18th birthday. 6) PUNITIVE DAMAGES STANDARD IN MED MAL: Requires clear and convincing evidence of intentional harm or malicious misconduct — higher burden than general tort. 7) NO MANDATORY PRE-SUIT MEDIATION for general tort claims.
Missouri Tort Reform Resources & Contacts
- Missouri State Bar Association: https://www.mobar.org
- Missouri Attorney General: https://ago.mo.gov
- Missouri Courts: https://www.courts.mo.gov
- JPML (Federal MDL Data): jpml.uscourts.gov
- NCSL Tort Reform Tracker: ncsl.org
- Cornell LII — Tort Law: law.cornell.edu
This Missouri tort reform guide was last verified against official sources in May 2026. If you notice outdated information, please contact us.
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Attorney Advertising. The information on this page is provided for general informational purposes only and does not constitute legal advice. No attorney-client relationship is created by accessing or using this content. Every case is unique, and results depend on the specific facts and circumstances involved. Past settlement amounts and case outcomes do not guarantee similar results in your case. If you believe you have a legal claim, you should consult with a licensed attorney in your jurisdiction who can evaluate your specific situation.