U.S. Supreme Court Removes Prejudice Requirement From Arbitration Waiver Test
In deciding Morgan v. Sundance, Inc., the U.S. Supreme Court has resolved a circuit split, answering the question of whether a party must show prejudice when arguing that the opposing party waived its right to compel arbitration. Previously, all federal circuit courts except the Seventh and D.C. Circuits used an arbitration-specific waiver rule that requires a showing of prejudice. The Supreme Court has now eliminated this requirement.
In this case, Morgan worked as an hourly employee at a fast-food franchise owned by Sundance, Inc. When she applied for the job, Morgan signed an agreement to arbitrate any employment dispute. Nevertheless, Morgan subsequently filed a nationwide collective action claiming Sundance had violated the FLSA regarding overtime payment.
Initially, Sundance defended against the lawsuit, filing a motion to dismiss and engaging in mediation. Nearly eight months after Morgan filed the suit, Sundance moved to stay the litigation and compel arbitration under the Federal Arbitration Act (FAA). Opposing the motion, Morgan argued that Sundance had waived its right to arbitration by acting inconsistently with its right to arbitrate. Applying the Eighth Circuit precedent, the courts below held that a party waives its right to arbitration when it knew of its right to arbitrate, acted inconsistently with that right, and prejudiced the other party by its inconsistent actions.
The Supreme Court held that the Eighth Circuit erred in conditioning the waiver of the right to arbitrate on a showing of prejudice to the party opposing arbitration. The Court noted that federal courts may not create arbitration-specific variants of federal procedural rules based on the FAA's policy favoring arbitration and that this oft-cited policy "is merely an acknowledgment of the FAA's commitment to overrule the judiciary's longstanding refusal to enforce agreements to arbitrate and to place such agreements upon the same footing as other contracts."
The Supreme Court held that the text of the FAA clearly states that courts are not permitted to create arbitration-specific procedural rules like the one at issue here. Citing that the usual federal rule of waiver does not contain a requirement to show prejudice, the Court held that Section 6 of the FAA likewise instructs that prejudice is not a condition of finding that a party waived its right to arbitrate under the FAA by litigating too long.
In light of this decision, parties to disputes may need to change their approach when faced with a lawsuit where an arbitration agreement may apply. Parties can no longer rely on an opposing party not being prejudiced to avoid an argument that they waived their right to arbitration.
Topics
Featured Insights

Event
Mar 3 – 5, 2026
25th Annual Legal Malpractice & Risk Management (LMRM) Conference

Press Release
Feb 13, 2026
Hinshaw Team Wins Appeal in Criminal Indictment of Waukegan City Clerk Janet Kilkelly

Press Release
Feb 10, 2026
Hinshaw Trial Team Secures $0 Defense Verdict in $15 Million Auto Accident Trial

Press Release
Feb 4, 2026
Hinshaw Celebrates 17 Consecutive Years of Being Named an Equality 100 Award Winner

Press Release
Feb 5, 2026
Hinshaw Legal Team Secures Directed Verdict in Florida Equine Fraud Case

Press Release
Feb 2, 2026
Hinshaw Welcomes 16 Attorneys in Seven Offices and Announces Opening of a Cleveland Office

Press Release
Jan 20, 2026
Hinshaw Attorneys Named to the LCLD 2026 Fellowship Class and 2026 Pathfinder Program

Press Release
Jan 15, 2026
Hinshaw Client Secures a Complete Jury Verdict in Fraudulent Misrepresentation Horse Sale Case

Press Release
Jan 6, 2026
Hinshaw Adds Four-Member Consumer Financial Services Team in DC and Florida



