Class action basics

Statute of limitations

A statute of limitations is the legal deadline for filing a lawsuit, set by law and counted from when the claim arose.

Also called: limitations period, time limit to sue, statute of limitation

Definition

A statute of limitations is the legal deadline for filing a lawsuit, set by law and counted from when the claim arose.

What it means

A statute of limitations is a law that sets the deadline for filing a lawsuit. Once the time runs out, the person being sued can ask the court to dismiss the case, even if the claim was valid.

The time limit depends on the type of claim and the court. Federal law has a general four-year limit for civil claims that arise under federal laws passed after December 1, 1990 (28 U.S.C. § 1658(a)). Many federal laws set their own limits. The Video Privacy Protection Act, for example, allows two years from the violation or its discovery (18 U.S.C. § 2710(c)(3)). State law sets the limit for most consumer claims, and it varies by state.

The clock usually starts when the claim "accrues," which is often when the harm happens, though some claims start the clock when you discover it. In a class action, limits often shape how far back the class period reaches. A limitations period is not the same as the claim deadline in a settlement, which is set by the court-approved notice.

What it means for you

The key point for settlements: a statute of limitations does not set the deadline for a settlement claim. If you fit the class definition, the date that matters is the claim deadline in the notice. Limitations matter if you are thinking about suing on your own, for example after opting out. By then the clock may be running, and a class action filed earlier may have paused it (see tolling). Courts enforce these limits strictly, and the rules differ by state and type of claim. For your own situation, a lawyer can tell you which deadline applies.

Example

Say the time limit for suing over a hidden fee is four years. You were charged in March 2022, so a lawsuit filed in 2025 is on time, and one filed in 2027 is probably too late. A class action settlement over that fee works differently. Its claim deadline is a date in the notice, say in December 2026, and it applies whatever the limitations period says.

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FAQ

It depends on the claim and the state. Federal law has a general four-year limit for claims under federal statutes passed after December 1, 1990, but many laws set their own periods, and state law governs most consumer claims. A lawyer can tell you the limit for your claim.

No. A settlement's claim deadline comes from the court-approved settlement and is stated in the notice. Missing it can cost you your payment, so file before the date shown.

Sources

Updated Oct 18, 2026. Plain-English definitions for general information — not legal or tax advice.

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