Missouri Medical Malpractice Statute of Limitations Calculator
Use this calculator to find your exact filing deadline for a medical malpractice claim in Missouri. Enter your incident date and circumstances below for an instant result, including any tolling extensions that may apply to your situation.
Unfamiliar with any terms? Glossary of Terms
3. Incident Details
4. Special Circumstances
Missouri's medical malpractice statute of limitations is governed by the state's civil procedure and limitations statutes. Claims against government-owned hospitals or healthcare facilities in Missouri are subject to the applicable government tort claims act in addition to the standard medical malpractice procedural requirements. Under state law, the limitations period is tolled for minor claimants until they reach the age of majority at 18.
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Missouri's medical malpractice statute of limitations of 2 years matches 34 other states; the national median is also 2 years.
📊 Missouri Medical Malpractice Deadline vs Neighbors & National Median
About This Calculator
This calculator finds your exact filing deadline for a medical malpractice claim in Missouri. It applies Missouri's specific statute of limitations period, checks whether the discovery rule extends your deadline, accounts for tolling if the injured party was a minor, and flags any special notice requirements if your claim involves a government entity. Enter your incident date — or discovery date if the harm wasn't immediately apparent — and the calculator counts forward using Missouri's exact rule to show your filing deadline, the time remaining, and an urgency status. Results are based on verified state statute citations, not general estimates.
What is a Medical Malpractice Claim?
Statute of Limitations Deadline Calculation Formula
Here is how the calculation methodology works using representative illustrative figures (hypothetical example only — see Missouri's actual deadlines in the sections above):
- Incident Date: June 1, 2024
- Statutory Period: 2 years (730 days)
- Discovery Date (if delayed discovery applies): September 1, 2024
- Standard Filing Deadline: June 1, 2026 (2 years from incident)
- Discovery-Extended Deadline: September 1, 2026 (2 years from discovery)
How Missouri's Medical Malpractice Deadline Works
Under Missouri Rev. Stat. § 68, Missouri provides 2 years to file a medical malpractice lawsuit. The clock typically begins when the injury was discovered — or when it reasonably should have been discovered — rather than on the date the harm occurred. This is known as the discovery rule. Missouri extends the filing window by up to 1 additional year under the discovery rule.
Missouri's medical malpractice statute of limitations is governed by the state's civil procedure and limitations statutes. Claims against government-owned hospitals or healthcare facilities in Missouri are subject to the applicable government tort claims act in addition to the standard medical malpractice procedural requirements. Under state law, the limitations period is tolled for minor claimants until they reach the age of majority at 18.
Special Circumstances
Government entity claims: If the defendant is a government entity, Missouri requires a formal administrative claim notice to be filed within 6 months of the incident before a lawsuit may be filed. Missing this notice deadline permanently bars the claim. After the claim is rejected, you have 12 months to file suit.
Minor claimants: If the injured person was a minor at the time of the incident, Missouri tolls the statute of limitations until they reach age 18.
Absolute repose period: Missouri imposes an absolute repose period of 10 years from the date of the alleged malpractice, regardless of when the injury was discovered.
What Happens If You Miss the Deadline
If a lawsuit is filed after the statute of limitations expires, the defendant can ask the court to dismiss the case as time-barred — and courts almost always grant this motion, regardless of how strong the underlying claim is. The right to sue is lost permanently; there is no general exception for not knowing the deadline existed. A small number of circumstances can pause or extend the clock, covered in the Special Circumstances section above if they apply to your claim type and state. If your deadline is approaching or may have already passed, contact a licensed attorney immediately — some exceptions are themselves time-sensitive.
Frequently Asked Questions
How does Missouri determine the clock trigger for medical malpractice?
Under § 516.105, Missouri triggers the medical malpractice statute of limitations from the date of the occurrence of the act of neglect complained of. The state generally rejects a broad discovery rule, making the timeline exceptionally rigid for most clinical errors. The clock begins ticking immediately when the malpractice happens, not when the patient realizes they were harmed.
How does Missouri's statute of repose affect latent medical malpractice claims?
Missouri enforces a strict 10-year statute of repose under § 516.105 that acts as an absolute final cutoff for all medical malpractice litigation. This repose period begins on the date of the negligent act and permanently bars the claim once it elapses, regardless of discovery. Even for the few exceptions where the clock is delayed, the 10-year repose remains an absolute barrier.
What are the minor tolling rules for medical malpractice in Missouri?
Missouri strictly restricts minor tolling for medical malpractice under § 516.105, stipulating that tolling runs only to age 18. This is a critical distinction from Missouri's general disability tolling statute (§ 516.170), which tolls most standard personal injury claims to age 21. A patient injured by clinical negligence during childhood must adhere to this tighter age-18 medical malpractice framework.
Does Missouri require an affidavit of merit for medical malpractice?
Missouri law requires plaintiffs to file an affidavit of merit within 90 days of filing a medical malpractice petition. This affidavit must state that the plaintiff has obtained the written opinion of a legally qualified healthcare provider confirming that the defendant failed to use reasonable care. Failure to file this expert certification will result in the dismissal of the lawsuit without prejudice.
How does Missouri handle foreign objects left in the body?
Missouri provides a specific statutory exception under § 516.105 for cases where a foreign object is inadvertently left inside a patient's body. In these undeniable cases of surgical negligence, a specific discovery rule applies, triggering the clock when the object is discovered. This allows patients to sue for blatant surgical errors that remained hidden for years.
Other Missouri Civil Statutes
Explore filing limits and calculator tools for other civil claims in the state of Missouri:
This tool is for informational and educational reference only and does not constitute legal advice. Statutes of limitations vary by jurisdiction and can be affected by tolling, government claim notice requirements, and other exceptions. Always consult a licensed attorney before making legal decisions.