What is a statute of limitations?

Why deadlines exist

Evidence fades, witnesses move away or die, and people are entitled at some point to stop worrying about an old dispute. So every state, and the federal government, sets a time limit for filing each kind of civil claim and for prosecuting most crimes. If a lawsuit is filed after the deadline, the defendant raises it as a defense and the court dismisses the case — without ever looking at who was right.

Typical civil periods

• Personal injury — one to six years, most often two or three. Kentucky, Louisiana and Tennessee have among the shortest (one or two years depending on the claim); Maine and North Dakota among the longest.
• Medical malpractice — usually two to three years, plus a separate outer limit measured from the treatment itself.
• Wrongful death — often two years, usually running from the date of death rather than the injury.
• Written contracts — often four to six years, sometimes longer; oral contracts are shorter.
• Property damage — commonly two to six years.
• Defamation — short, often one or two years from publication.
• Claims against a government body — an administrative notice is often due within 60 to 180 days, long before the ordinary deadline.

When the clock starts

Usually on the date of the injury or the breach. The discovery rule moves the start to the day you knew, or reasonably should have known, that you were harmed and what caused it — which is how a retained surgical instrument or an asbestos illness can be actionable decades later. For a breach of contract, the clock usually starts when the promise was broken, not when the contract was signed.

When the clock pauses

“Tolling” stops the clock for a time. Common grounds: the injured person is a minor (the period often starts at 18), lacks mental capacity, or is on active military duty; the defendant left the state or hid the wrongdoing; or the parties signed a written tolling agreement while negotiating. Tolling rules are technical and vary widely — never assume one applies without checking.

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The other deadline nobody mentions

A statute of repose is an absolute cut-off running from an event such as a sale, a completed building or a medical procedure. It can expire before you even know you were hurt, and the discovery rule does not extend it. Product and construction defect cases are where it most often bites.

Criminal cases

Prosecutors face limits too, generally shorter for misdemeanors (often one to three years) than for felonies. Murder has no limitation period anywhere in the United States, and many states have removed or extended the limits for sexual offenses against children. A civil lawsuit over the same act follows its own, separate civil deadline.

Debts

Debt collection is governed by the contract or open-account deadline of the state, commonly three to six years. After it passes, a collector may still ask for payment but cannot win a lawsuit if you raise the defense. In many states a small payment or a written acknowledgment can restart the clock, so get advice before paying anything on an old debt.

Why waiting costs more than the deadline

Long before the legal clock runs out, the evidence does. CCTV is overwritten within days or weeks, vehicles are repaired or scrapped, witnesses move and memories blur. The practical deadline for gathering proof is usually measured in weeks, and lawyers need time before the legal deadline to investigate and draft a complaint — many decline cases that arrive in the last month.

How to find your deadline

Look up the statute for your state and your claim type, check whether a government body is involved (it changes everything), and write down the date of the event. Then confirm with a lawyer licensed in that state: the correct period depends on how the claim is classified, and a claim can be classified more than one way.