If you are looking at a potential securities arbitration claim, one of the easiest ways to get lost is to assume that FINRA’s six-year eligibility rule and a state statute of limitation are interchangeable. They are not. They deal with different legal questions, they can run on different timelines, and confusing one for the other can put a claim at risk before anyone reaches the merits.
That distinction matters because timing issues in investor cases often become a fight of their own. A claim may appear timely under FINRA’s forum rule and still face a limitations defense under state or federal law. In other situations, a claim may fit within a statute of limitation theory but still run into arguments about FINRA eligibility. FINRA itself says its rule does not extend applicable statutes of limitations, and its filing guidance notes that a respondent may raise a statute of limitations shorter than six years as a defense. FINRA Rule 12206 FINRA Filing A Claim FAQ
In this post you’ll learn what FINRA eligibility is, what statutes of limitation are, why they are separate, where investors often get tripped up, and why early case review can matter so much when the calendar is already working against you. For a broader overview of how these deadline issues fit together, it may also help to start with this guide on how the six-year rule and other filing pressures interact.
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FINRA arbitration has its own time-limit rule for customer cases: Rule 12206. The rule says that no claim is eligible for submission to arbitration under the Code when six years have elapsed from the occurrence or event giving rise to the claim. It also says, in plain terms, that the rule does not extend applicable statutes of limitations. FINRA Rule 12206
That language tells you a lot.
FINRA eligibility is fundamentally about access to the arbitration forum. In general terms, it asks whether the claim is too old to be heard in FINRA arbitration under FINRA’s own procedural rule. It is not, by itself, the same thing as asking whether a lawsuit would be timely in court under a state statute, or whether a federal securities claim remains alive under federal timing rules.
FINRA has reinforced that separation in its own training materials and rulemaking commentary. In a 2026 regulatory notice discussing arbitration rules, FINRA reiterated that the eligibility rule is separate from state or federal time limits for filing a claim, and that arbitrators resolve questions regarding eligibility under Rule 12206 as well as applicable statutes of limitation. FINRA Regulatory Notice 26-06
So when someone says, “I’m within the six years,” that is only part of the conversation.
A statute of limitation is a law that limits how long a party has to bring a legal claim after a triggering event. Depending on the claim, that clock may start when the misconduct occurred, when the investor discovered it, or when the investor reasonably could have discovered it. The exact rule can vary significantly by jurisdiction and by cause of action.
That is why limitation analysis in securities cases can become complicated fast. The governing deadline may depend on whether the claim is framed as fraud, negligence, breach of fiduciary duty, unsuitability, failure to supervise, blue-sky law violations, or another theory entirely. Some claims may borrow from state law. Others may arise under federal law. Some may involve both limitation periods and statutes of repose.
FINRA’s own investor-facing materials acknowledge this directly. Its FAQ explains that while Rule 12206 outlines arbitration time limits, time restrictions called statutes of limitations may be shorter than six years, and a respondent may raise one of those shorter deadlines as a defense. FINRA Filing A Claim FAQ
That means an investor could file within FINRA’s six-year window and still hear the other side argue that one or more claims expired earlier under governing law.
The shortest version is this: