Guide
What Is a Statute of Limitations? (And How to Track It)
A statute of limitations is the law's expiration date on a legal claim: file within the period, or — with narrow exceptions — lose the right to bring the claim at all. For a law firm, it's the most unforgiving deadline in the calendar, because unlike most litigation dates, there is usually no extension and no do-over. This guide covers how limitations periods work in plain English, and the tracking discipline that keeps them from becoming malpractice claims. It's educational, not legal advice — always verify the rules for your jurisdiction and claim.
The basics: a countdown that starts when a claim accrues
Every jurisdiction sets time limits for bringing different kinds of claims — often in the range of one to six years for common civil claims, longer for some, shorter for others. The period starts when the claim 'accrues,' which is usually when the injury or breach occurs. File before the period ends and you're fine; file after, and the defendant can raise the statute as a defense that typically ends the case regardless of its merits. Courts enforce these limits strictly. The policy is finality — evidence goes stale, memories fade — but for practitioners the practical takeaway is simpler: this is a deadline that forgives nothing.
When the clock starts is often the hard question
The trigger date is where limitations analysis gets genuinely difficult. Many jurisdictions apply a 'discovery rule' to some claims: the clock starts not when the harm happened, but when the plaintiff discovered it — or reasonably should have. A patient may not learn of a surgical error for years; a defrauded investor may not spot the fraud until an audit. Which claims get the discovery rule, and how 'should have discovered' is measured, varies enormously by state and claim type. When accrual is debatable, calendar from the earliest plausible trigger date. Assuming the later, friendlier date is how firms file confidently — and late.
Tolling can pause the clock — but never count on it
Tolling doctrines pause or extend a limitations period in defined circumstances: the plaintiff was a minor or legally incapacitated, the defendant left the jurisdiction or fraudulently concealed the wrongdoing, or the parties agreed in writing to toll while negotiating. Some claims also come with a hard outer limit — a statute of repose — that cuts off claims after a fixed time regardless of discovery or tolling. Tolling is real, litigated constantly, and jurisdiction-specific. Treat it as a defense-in-depth you argue if forced to, never as a planning assumption. The calendar should always show the untolled date.
The period depends on the claim, the defendant, and the state
There is no single limitations period, even inside one state. Written-contract claims, oral-contract claims, personal injury, defamation, professional negligence, and statutory claims each carry their own period, and characterizing the claim correctly is part of the analysis — one set of facts often supports several claims with different clocks. Two traps deserve special respect: claims against government entities frequently require a formal notice of claim within months, long before the limitations period itself runs; and cross-state matters raise choice-of-law questions about which state's period applies. When multiple periods are plausible, calendar the shortest.
Track it from the first phone call
The limitations analysis belongs at intake — before the engagement letter, ideally. For every prospective matter, identify each potential claim, its limitations period, the trigger date, and the resulting deadline, and record the reasoning alongside the date. Two practices are non-negotiable. First, calendar conservatively: earliest trigger, shortest plausible period. Second, set reminders absurdly early — 6 months, 90 days, 30 days out — because a limitations deadline isn't a filing task, it's a decision point that needs investigation, client contact, and drafting time before it. And calendar deadlines for declined matters too: a prospective client who walks away and blows the statute may claim you never warned them. A dated declination letter noting the deadline is cheap insurance.
If the statute runs, options narrow to almost nothing
Courts can and occasionally do apply equitable doctrines to excuse a late filing, but the bar is high and getting there means litigating about your own lateness. A firm that blows a client's limitations period is usually looking at a malpractice claim in which the underlying case gets tried inside the malpractice case — an expensive, reputation-scarring mess. This asymmetry is the whole argument for systematic tracking: the cost of calendaring every limitations date conservatively, with early reminders and a named backup, rounds to zero against the cost of missing one. DeadlineShield exists for exactly this — critical dates tracked per matter, automatic email reminders long before they arrive, and escalation when one is at risk.
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Start tracking free →Frequently asked
Can a statute of limitations be extended?
Generally no — not by the court's discretion the way a filing deadline can be. Defined tolling doctrines (minority, incapacity, fraudulent concealment, tolling agreements) can pause the clock, but they're narrow, jurisdiction-specific, and litigated. Sound practice is to calendar the untolled date and treat it as immovable.
Is the statute of limitations the same in every state?
No. Periods vary widely by state and by claim type — the same facts can have different deadlines in neighboring states, and cross-border matters raise the question of which state's period applies. Always verify the specific period for your claim and jurisdiction from a current source.
When should a law firm calendar a statute of limitations?
At intake, before the engagement letter — using the earliest plausible trigger date and the shortest plausible period, with reminders starting months out. Calendar deadlines for declined matters too, and confirm the date in the declination letter.
This guide is general educational information, not legal advice. Deadline and limitations rules vary by jurisdiction, court, and claim — always verify the current rules that apply to your matter.