When a dispute falls outside the limits of an arbitration agreement, it means the agreement doesn’t cover it, so an arbitrator has no authority to decide it and the claim has to go somewhere else, almost always to court. The limits come from the contract’s own scope language, from federal and state law, and from the rules of whatever arbitration organization the parties picked. Getting the question right before you file anywhere matters, because pursuing a claim in the wrong forum can burn months and, in the worst case, let a statute of limitations run out while you argue about where the case belongs.
What Puts a Dispute Outside the Limits
Every arbitration clause defines a scope. Some are drafted broadly to catch any dispute “relating to or arising from” the contract. Others are narrow, limited to certain claim types, specific signers, or disputes under a dollar threshold. Whatever the clause says controls more than anything else.
Common ways a dispute ends up outside that scope:
- Subject matter exclusion. Many contracts carve out intellectual property and trade secret claims so the owner can get a court injunction. Emergency injunctive relief is often preserved for court even when everything else goes to arbitration.
- Dollar thresholds. Some agreements send small claims to arbitration and large ones to court, or vice versa. FINRA’s simplified arbitration track, for example, handles claims of $50,000 or less with a single arbitrator deciding on written submissions; if a party’s filings push the amount above $50,000, the case leaves the simplified track for standard procedures.1FINRA. 12800 – Simplified Arbitration
- Small claims court. Under the American Arbitration Association’s Consumer Due Process Protocol, parties keep the right to go to small claims court for disputes within that court’s jurisdiction, and many consumer contracts echo this.2American Arbitration Association. Consumer Arbitration Fact Sheet
- Party restrictions. Some clauses only bind the people who actually signed. That said, courts have pulled nonsignatories into arbitration under theories like third-party beneficiary status, so the reach of a clause can run further than it appears.
Federal law supplies the backdrop. The Federal Arbitration Act makes most written arbitration agreements enforceable, declaring that such an agreement “shall be valid, irrevocable, and enforceable, save upon such grounds as exist at law or in equity for the revocation of any contract.”3Office of the Law Revision Counsel. 9 USC 2 – Validity, Irrevocability, and Enforcement of Agreements to Arbitrate Arbitration clauses are enforced like other contract terms, and they can be attacked on the same grounds any contract can.
One category of agreement sits outside the FAA from the start: employment contracts for seamen, railroad employees, and other workers engaged in foreign or interstate commerce. For those workers, an employer’s mandatory arbitration clause may not be enforceable under the FAA, though state arbitration law could still apply depending on the jurisdiction.4Legal Information Institute. Federal Arbitration Act
Class Action Waivers Stay Inside the Limits
One thing worth flagging because people often assume otherwise: a class action waiver does not push your claim outside arbitration. It just means you have to bring the claim individually. The Supreme Court held in AT&T Mobility LLC v. Concepcion that the FAA preempts state laws invalidating class action waivers, because class proceedings fundamentally change arbitration’s speed and informality.5Justia. AT&T Mobility LLC v. Concepcion, 563 US 333 (2011) The Court reinforced that result in the employment context in Epic Systems Corp. v. Lewis.6Supreme Court of the United States. Epic Systems Corp. v. Lewis, 584 US 497 (2018) If your agreement includes a waiver, the usual options are individual arbitration or individual litigation, not a group claim.
Federal Laws That Pull Claims Out Regardless of the Contract
Some claims leave arbitration no matter what the agreement says, because Congress put them there.
Since March 2022, the Ending Forced Arbitration of Sexual Assault and Sexual Harassment Act gives anyone alleging sexual assault or sexual harassment the right to reject a predispute arbitration agreement and sue in court. The choice belongs to the person making the allegation. The Act also voids predispute class action waivers for those claims, and a court — not an arbitrator — decides whether the Act applies, even where the contract contains a delegation clause.7Office of the Law Revision Counsel. 9 USC 402 – No Validity or Enforceability The statute defines “sexual assault dispute” as one involving a nonconsensual sexual act or contact, and “sexual harassment dispute” as one relating to conduct alleged to constitute sexual harassment under federal, tribal, or state law.8Office of the Law Revision Counsel. 9 USC 401 – Definitions Parties can still choose to arbitrate these claims after the dispute arises; the Act only blocks predispute agreements that try to lock the choice in.
Who Decides Whether a Dispute Is Outside the Limits
This is one of the most contested questions in arbitration law, and the answer depends on the contract.
By default, a court decides whether a particular dispute falls within the scope of an arbitration agreement. That question is called arbitrability. But many agreements include a delegation clause that hands the arbitrability question itself to the arbitrator. If yours has one, the arbitrator decides scope, not a judge.
In Rent-A-Center, West, Inc. v. Jackson, the Supreme Court held that a delegation provision is enforceable unless the party challenging arbitration attacks the delegation clause specifically, rather than the agreement as a whole.9Legal Information Institute. Rent-A-Center West Inc. v. Jackson, 561 US 63 (2010) The Court went further in Henry Schein, Inc. v. Archer & White Sales, Inc., ruling that courts cannot override a delegation clause even when they think the argument that the agreement covers the dispute is “wholly groundless.”10Justia. Henry Schein Inc. v. Archer and White Sales Inc., 586 US ___ (2019)
Practically speaking: if your contract has a delegation clause and you think a dispute sits outside the agreement’s limits, your scope argument likely goes to the arbitrator first. The main exception is sexual assault and sexual harassment claims, where Congress gave courts the final say regardless of delegation.7Office of the Law Revision Counsel. 9 USC 402 – No Validity or Enforceability
What to Do When a Dispute Falls Outside the Limits
Once you’ve concluded a claim is outside the agreement, the usual path is court. The FAA governs how the forum fight plays out.
If someone tries to force you into arbitration on a claim the agreement doesn’t cover, you can oppose the motion to compel. Going the other way, a party seeking arbitration can ask a court to compel it when the other side files suit on a covered claim.11Office of the Law Revision Counsel. 9 USC 4 – Failure to Arbitrate Under Agreement; Petition to United States Court When a case contains some claims that belong in arbitration and some that don’t, a court can pause the lawsuit while the arbitrable portions are heard.12Office of the Law Revision Counsel. 9 USC 3 – Stay of Proceedings Where Issue Therein Referable to Arbitration
Watch the Filing Deadline
This is where people get hurt. If you spend months pursuing a claim in arbitration and then learn it was outside the agreement, you have to start over in court — and the statute of limitations has been running the whole time. Some courts will apply equitable tolling to pause the clock while you were in the wrong forum, but not all will, and the result turns on the specific facts. Filing in the wrong forum does not automatically protect you. If your claim is anywhere near a deadline, resolve the forum question first.
Don’t Litigate a Claim You Intend to Arbitrate
A party that belongs in arbitration but participates in court litigation can lose the right to arbitrate. In Morgan v. Sundance, Inc., the Supreme Court held that courts no longer require a showing that the delay caused prejudice. Simply litigating too long without raising the arbitration clause can waive it. The Court reasoned that the FAA does not authorize special arbitration-preferring procedural rules, so ordinary waiver principles apply.13National Association of Attorneys General. Supreme Court Report – Morgan v. Sundance Inc., 21-328 If you plan to enforce an arbitration clause, raise it early.
Challenging the Agreement Itself
Sometimes the right move isn’t arguing scope but arguing that the arbitration clause shouldn’t be enforced at all. The FAA’s own text leaves that door open: an agreement is enforceable except on grounds that would void any contract.3Office of the Law Revision Counsel. 9 USC 2 – Validity, Irrevocability, and Enforcement of Agreements to Arbitrate The most common challenge is unconscionability, which has two parts. Procedural unconscionability looks at how the agreement was formed: a take-it-or-leave-it contract, buried fine print, pressure to sign without time to review. Substantive unconscionability looks at the terms themselves: a one-sided clause that limits only one party, unreasonable costs, or stripped-away remedies.
Most courts require both, on a sliding scale: a severely one-sided term needs less evidence of procedural unfairness, and a coercive sign-up process needs less evidence of oppressive terms. A court may strike the whole clause or sever the offending provisions and enforce the rest, especially where the contract includes a severability clause.
Vacating an Award the Arbitrator Had No Authority to Issue
If an arbitrator decides a dispute that was outside the agreement’s limits, the losing party can ask a court to vacate the award. The FAA lets a court set an award aside in four situations:
- The award was procured by corruption or fraud.
- There was evident partiality or corruption in the arbitrator.
- The arbitrator engaged in misconduct, such as refusing to postpone a hearing despite good cause or refusing to hear material evidence.
- The arbitrator exceeded their powers or failed to issue a mutual, final, and definite award.
That last ground is the one tied directly to arbitration limits. If the arbitrator ruled on a claim the agreement didn’t cover, the award can be challenged on the basis that the arbitrator had no authority over it.14Office of the Law Revision Counsel. 9 USC 10 – Same; Vacation; Grounds; Rehearing Courts do not review arbitration awards for ordinary legal errors, so the bar for vacating is deliberately high. That’s one more reason to settle the scope question before arbitration begins rather than after.