Medical Malpractice Statute of Limitations: Every State's Deadline + Discovery Rule

If you think a doctor, hospital, or other provider harmed you, the single most important number to know is your filing deadline. Miss it and even a strong case can be thrown out before anyone looks at the medicine. But the medical malpractice statute of limitations by state is rarely a clean count from the date of treatment. Med mal is one of the trickiest areas of injury law for timing, because two separate rules pull in opposite directions: the discovery rule, which can push your deadline later, and the statute of repose, which can cut it off entirely.

That tension is what makes these cases so easy to get wrong. A surgical sponge left behind or a missed cancer diagnosis might not surface for years, so most states let the clock start when you discover (or reasonably should have discovered) the injury rather than when it happened. At the same time, many of those same states impose an absolute outer limit measured from the date of treatment, after which no claim survives no matter when you found out. Below is the deadline for every state, plus how the discovery rule and repose caps actually work.

Why medical malpractice deadlines are different

A standard injury claim is straightforward to time: you know the day you were hurt, and the clock runs from there. Medical malpractice breaks that assumption. The harm is often hidden inside your body or buried in records you never see, and you may trust the very provider who made the error. Lawmakers responded with two adjustments that exist side by side in many states.

The first is the discovery rule, which delays the start of the clock until you knew or should have known about the injury. The second is the statute of repose, an absolute ceiling measured from the date of the negligent act that can bar a claim even if you never had a fair chance to discover it. A state can have one, both, or neither. Reading the table below means checking the deadline column and the discovery/repose column together, because the shorter of the two is usually what controls your case.

Medical malpractice statute of limitations by state

The table shows the standard filing deadline, whether a discovery rule applies and for how long, and any statute of repose cap. Where a cell reads “no disc,” that state does not provide a general discovery extension for these claims, so the clock typically runs from the date of treatment.

State	Deadline	Discovery / Repose	Statute
Alabama	2 yrs	no disc, repose 4 yrs	Ala. Code (medical malpractice provision)
Alaska	2 yrs	disc 2 yrs	Alaska Stat. (medical malpractice provision)
Arizona	2 yrs	disc 2 yrs	Ariz. Rev. Stat. (medical malpractice provision)
Arkansas	2 yrs	no disc	Ark. Code (medical malpractice provision)
California	3 yrs	disc 1 yr, repose 3 yrs	Cal. Civ. Proc. Code (medical malpractice provision)
Colorado	2 yrs	disc 2 yrs, repose 3 yrs	Colo. Rev. Stat. (medical malpractice provision)
Connecticut	2 yrs	disc 2 yrs, repose 3 yrs	Conn. Gen. Stat. (medical malpractice provision)
Delaware	2 yrs	no disc, repose 3 yrs	Del. Code tit. 10 (medical malpractice provision)
District of Columbia	3 yrs	no disc	D.C. Code (medical malpractice provision)
Florida	2 yrs	disc 2 yrs, repose 4 yrs	Fla. Stat. (medical malpractice provision)
Georgia	2 yrs	no disc, repose 5 yrs	Ga. Code (medical malpractice provision)
Hawaii	2 yrs	disc 2 yrs, repose 6 yrs	Haw. Rev. Stat. (medical malpractice provision)
Idaho	2 yrs	no disc	Idaho Code (medical malpractice provision)
Illinois	2 yrs	disc 2 yrs, repose 4 yrs	735 ILCS 5/13-202
Indiana	2 yrs	no disc	Ind. Code (medical malpractice provision)
Iowa	2 yrs	disc 2 yrs, repose 6 yrs	Iowa Code (medical malpractice provision)
Kansas	2 yrs	disc 2 yrs, repose 4 yrs	Kan. Stat. (medical malpractice provision)
Kentucky	1 yr	disc 1 yr, repose 5 yrs	Ky. Rev. Stat. (medical malpractice provision)
Louisiana	1 yr	disc 1 yr, repose 3 yrs	La. Civ. Code art. 3492 (now art. 3493.1, 2-yr eff. 2024)
Maine	3 yrs	no disc	Me. Rev. Stat. tit. 14 (medical malpractice provision)
Maryland	5 yrs	disc 3 yrs, repose 5 yrs	Md. Cts. & Jud. Proc. (medical malpractice provision)
Massachusetts	3 yrs	disc 3 yrs, repose 7 yrs	Mass. Gen. Laws ch. 260 (medical malpractice provision)
Michigan	2 yrs	disc 6 mo, repose 6 yrs	Mich. Comp. Laws (medical malpractice provision)
Minnesota	4 yrs	no disc	Minn. Stat. (medical malpractice provision)
Mississippi	2 yrs	disc 2 yrs, repose 7 yrs	Miss. Code (medical malpractice provision)
Missouri	2 yrs	no disc, repose 10 yrs	Mo. Rev. Stat. (medical malpractice provision)
Montana	3 yrs	disc 3 yrs, repose 5 yrs	Mont. Code (medical malpractice provision)
Nebraska	2 yrs	disc 1 yr, repose 10 yrs	Neb. Rev. Stat. (medical malpractice provision)
Nevada	3 yrs	disc 1 yr	Nev. Rev. Stat. (medical malpractice provision)
New Hampshire	3 yrs	disc 3 yrs	N.H. Rev. Stat. (medical malpractice provision)
New Jersey	2 yrs	disc 2 yrs	N.J. Stat. (medical malpractice provision)
New Mexico	3 yrs	no disc, repose 3 yrs	N.M. Stat. (medical malpractice provision)
New York	2.5 yrs	no disc	N.Y. C.P.L.R. (medical malpractice provision)
North Carolina	3 yrs	no disc, repose 4 yrs	N.C. Gen. Stat. (medical malpractice provision)
North Dakota	2 yrs	disc 2 yrs, repose 6 yrs	N.D. Cent. Code (medical malpractice provision)
Ohio	1 yr	disc 1 yr, repose 4 yrs	Ohio Rev. Code (medical malpractice provision)
Oklahoma	2 yrs	disc 2 yrs	Okla. Stat. tit. 12 (medical malpractice provision)
Oregon	2 yrs	disc 2 yrs, repose 5 yrs	Or. Rev. Stat. (medical malpractice provision)
Pennsylvania	2 yrs	disc 2 yrs, repose 7 yrs	42 Pa. Cons. Stat. (medical malpractice provision)
Rhode Island	3 yrs	disc 3 yrs	R.I. Gen. Laws (medical malpractice provision)
South Carolina	3 yrs	disc 3 yrs, repose 6 yrs	S.C. Code (medical malpractice provision)
South Dakota	2 yrs	no disc	S.D. Codified Laws (medical malpractice provision)
Tennessee	1 yr	disc 1 yr, repose 3 yrs	Tenn. Code (medical malpractice provision)
Texas	2 yrs	no disc, repose 10 yrs	Tex. Civ. Prac. & Rem. Code (medical malpractice provision)
Utah	2 yrs	disc 2 yrs, repose 4 yrs	Utah Code (medical malpractice provision)
Vermont	3 yrs	disc 2 yrs, repose 7 yrs	Vt. Stat. tit. 12 (medical malpractice provision)
Virginia	2 yrs	no disc, repose 10 yrs	Va. Code (medical malpractice provision)
Washington	3 yrs	disc 1 yr, repose 8 yrs	Wash. Rev. Code (medical malpractice provision)
West Virginia	2 yrs	disc 2 yrs, repose 10 yrs	W. Va. Code (medical malpractice provision)
Wisconsin	3 yrs	disc 1 yr, repose 5 yrs	Wis. Stat. (medical malpractice provision)
Wyoming	2 yrs	disc 2 yrs	Wyo. Stat. (medical malpractice provision)

For a side-by-side look at how med mal deadlines compare to other claim types in your state, see our statute of limitations by state overview, or run your own dates through the deadline calculator.

What is the discovery rule in med mal?

The discovery rule is the reason so many medical malpractice claims survive long after the treatment date. Under it, the clock doesn’t start when the negligent act occurred; it starts when you discovered, or with reasonable diligence should have discovered, that you were injured by it. A retained surgical instrument, a misread biopsy, or a slow-developing complication may stay hidden for months or years, and the discovery rule keeps the deadline from quietly expiring before you ever had a reason to suspect a problem.

Look at the discovery/repose column in the table to see how this plays out. States like Alaska, Arizona, and Oklahoma give a two-year window from discovery. California allows one year from discovery. Michigan is unusually tight at just six months. But notice the cells marked “no disc” — Arkansas, the District of Columbia, Idaho, Indiana, Maine, New York, South Dakota, and others do not apply a general discovery extension to these claims, so in those states the clock generally runs from the date of treatment regardless of when you found out. The mechanics of when “discovery” legally happens are nuanced and fact-specific, which is why we cover them in depth in our discovery rule explained guide.

Statute of repose: the absolute cutoff

A statute of repose is the counterweight to the discovery rule. While the discovery rule can extend your deadline, a repose period sets a hard outer limit measured from the date of the negligent act, after which the claim is barred no matter what. Even a textbook discovery-rule case can die against a repose cap if too much time has passed since the treatment itself.

The table shows how widely these caps vary. Tennessee, Delaware, Colorado, Connecticut, New Mexico, and Louisiana cap claims at just three years from the act. Alabama, Florida, Illinois, Kansas, North Carolina, Ohio, and Utah land at four years. At the long end, Missouri, Nebraska, Texas, Virginia, and West Virginia allow up to ten years. States with no repose cap listed — such as Nevada, New Hampshire, New Jersey, Rhode Island, and Wyoming — rely on their discovery-based deadline alone. Because the limitations period and the repose period can point to two different dates, the distinction matters enormously; our statute of limitations vs. repose article walks through how to tell which one controls your case.

Special rules for minors

When a child is injured by malpractice, the ordinary deadline often does not apply in the usual way. Many states pause, or “toll,” the clock for minors and give a separate, frequently longer window — sometimes measured from the child’s birthday or from when they reach the age of majority rather than from the date of treatment. The reasoning is simple: a young child cannot recognize a misdiagnosis or hire a lawyer, so the law preserves the claim until they are old enough to act.

These minor-specific provisions vary sharply from state to state, and some repose caps still apply even to children’s claims, which can cut a window short. If a child in your family was harmed by medical care, do not assume the standard adult deadline in the table above is the one that governs. Our child injury statute of limitations guide covers how these tolling rules work, and our tolling explained overview covers the broader set of circumstances that can pause a deadline.

States with the shortest med mal deadlines

If you are anywhere near these jurisdictions, treat the calendar as urgent. The shortest standard deadlines belong to Ohio, Kentucky, Louisiana, and Tennessee at one year. Ohio and Tennessee do offer a one-year discovery window, and both Kentucky and Tennessee carry repose caps (five years and three years respectively), but the baseline one-year clock leaves very little room to investigate, gather records, and file.

New York sits at two and a half years with no discovery rule for these claims, meaning the clock generally runs from the treatment date — a trap for patients who assume a later discovery resets it. A large group of states use a two-year standard deadline, including Alabama, Arizona, Florida, Georgia, Pennsylvania, Texas, and Virginia. Even within that two-year tier the details differ: Texas and Virginia pair the two-year clock with a ten-year repose cap and no discovery extension, while Florida and Pennsylvania add discovery windows. The lesson is that “two years” alone never tells the whole story — always read the deadline and the discovery/repose columns together.

California, Texas, and other complex states

A few states package multiple deadlines into one rule, and getting them straight is essential. California is the classic example: the deadline is three years from the injury or one year from discovery, whichever comes first, with a three-year repose cap. That “whichever comes first” structure means a patient who discovers an injury two years out still only gets one year from that point, not the full three. We break the math down in our California medical malpractice statute of limitations guide and on the dedicated California medical malpractice page.

Texas runs a two-year deadline with no discovery rule and a hard ten-year repose cap, so a claim discovered late can be barred even when the patient was not at fault for the delay. Florida layers a two-year discovery window over a four-year repose cap, while New York keeps a 2.5-year clock without a general discovery extension. For state-specific breakdowns, see the Texas medical malpractice, New York medical malpractice, and Florida medical malpractice pages. One more wrinkle applies almost everywhere: medical malpractice cases often require a pre-suit step such as an affidavit or certificate of merit from a qualified expert, or advance notice to the provider, and these requirements vary by state — confirm them with an attorney, because this article is general information, not legal advice.

Frequently Asked Questions

When does the medical malpractice clock actually start?

It depends on whether your state has a discovery rule. In states with one, the clock typically starts when you discovered, or reasonably should have discovered, the injury. In “no disc” states, it generally starts on the date of the negligent treatment. Check both columns in the table for your state.

Can the discovery rule give me unlimited time to file?

No. Even where a discovery rule applies, a statute of repose can impose an absolute ceiling measured from the date of treatment. For example, several states bar any claim after three to ten years regardless of when you discovered the harm, so the repose cap can override the discovery extension.

Which states have the shortest deadline?

Ohio, Kentucky, Louisiana, and Tennessee use a one-year standard deadline — the shortest in the country. New York’s 2.5-year clock with no discovery rule is also unforgiving because it generally runs from the treatment date.

Are deadlines different for children injured by malpractice?

Often, yes. Many states toll the clock for minors and provide a separate, sometimes longer window, though repose caps may still apply. See our child injury statute of limitations guide and confirm the specifics for your state.

Don’t guess your deadline

Between the standard deadline, the discovery rule, and the repose cap, medical malpractice timing is too easy to miscalculate by eye — and the cost of being wrong is losing the case entirely. The safest move is to identify your state in the table above, note all three numbers, and then confirm the start date that applies to your situation. When you are ready, plug your dates into the deadline calculator to see your filing window, and talk with a qualified attorney about any pre-suit requirements before you act.