The Ninth Circuit Rejects Class Action Plaintiffs’ Tactic to Avoid Federal Court

Before the Class Action Fairness Act of 2005 (CAFA), many corporate defendants were forced to litigate class actions in state court because the claims of putative class members could not be aggregated to meet the threshold requirement for federal diversity jurisdiction. However, CAFA removed that obstacle by establishing federal jurisdiction for class actions with at least 100 class members, more than $5 million in controversy considering all class members’ combined claims, and minimal diversity (i.e., at least one plaintiff and one defendant from different states).

Despite Congress’s clear intent to provide increased access to the federal system for interstate class actions, plaintiffs sought to develop a tactic to avoid CAFA jurisdiction by pleading only equitable claims for relief (e.g., restitution or injunctions) while foregoing otherwise viable legal claims for money damages. Doing so, plaintiffs argued, deprived federal courts of “equitable jurisdiction,” requiring remand to state court despite the existence of CAFA jurisdiction. The doctrine of equitable jurisdiction limits a federal court’s right to award equitable relief when the plaintiff can obtain adequate legal relief and is intended to preserve a defendant’s right to a jury trial for legal claims. Nonetheless, multiple federal district courts in California have remanded class actions to state court over the last several years for lack of equitable jurisdiction resulting from plaintiffs’ intentional failure to plead their adequate legal claims.

The Ninth Circuit, however, recently rejected this tactic in Ruiz v. The Bradford Exchange. In its order reversing remand of a class action to state court for lack of equitable jurisdiction, the Ruiz Court held that a defendant must be afforded the right to waive its “lack of equitable jurisdiction” defense to remain in federal court. In so holding, the Ninth Circuit recognized the difference between equitable jurisdiction, which it found to be waivable, and subject matter jurisdiction, which is an unwaivable limit on the federal court’s power. The Ninth Circuit’s decision in Ruiz provides an avenue for corporate class action defendants to stay in federal court despite plaintiffs’ attempts to subvert CAFA.

This article is available in the Jenner & Block Japan Newsletter. / この記事はJenner & Blockニュースレターに掲載されています。

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© 2026 Jenner & Block LLP. Attorney Advertising. Jenner & Block LLP is an Illinois Limited Liability Partnership including professional corporations. This publication, presentation, or event is not intended to provide legal advice but to provide information on legal matters and/or firm news of interest to our clients and colleagues. Readers or attendees should seek specific legal advice before taking any action with respect to matters mentioned in this publication or at this event. The attorney responsible for this communication is Brent E. Kidwell, Jenner & Block LLP, 353 N. Clark Street, Chicago, IL 60654-3456. Prior results do not guarantee a similar outcome. Jenner & Block London LLP, an affiliate of Jenner & Block LLP, is a limited liability partnership established under the laws of the State of Delaware, USA and is authorised and regulated by the Solicitors Regulation Authority with SRA number 615729. Information regarding the data we collect and the rights you have over your data can be found in our Privacy Notice. For further inquiries, please contact dataprotection@jenner.com.

The Ninth Circuit Rejects Class Action Plaintiffs’ Tactic to Avoid Federal Court

Before the Class Action Fairness Act of 2005 (CAFA), many corporate defendants were forced to litigate class actions in state court because the claims of putative class members could not be aggregated to meet the threshold requirement for federal diversity jurisdiction. However, CAFA removed that obstacle by establishing federal jurisdiction for class actions with at least 100 class members, more than $5 million in controversy considering all class members’ combined claims, and minimal diversity (i.e., at least one plaintiff and one defendant from different states).

Despite Congress’s clear intent to provide increased access to the federal system for interstate class actions, plaintiffs sought to develop a tactic to avoid CAFA jurisdiction by pleading only equitable claims for relief (e.g., restitution or injunctions) while foregoing otherwise viable legal claims for money damages. Doing so, plaintiffs argued, deprived federal courts of “equitable jurisdiction,” requiring remand to state court despite the existence of CAFA jurisdiction. The doctrine of equitable jurisdiction limits a federal court’s right to award equitable relief when the plaintiff can obtain adequate legal relief and is intended to preserve a defendant’s right to a jury trial for legal claims. Nonetheless, multiple federal district courts in California have remanded class actions to state court over the last several years for lack of equitable jurisdiction resulting from plaintiffs’ intentional failure to plead their adequate legal claims.

The Ninth Circuit, however, recently rejected this tactic in Ruiz v. The Bradford Exchange. In its order reversing remand of a class action to state court for lack of equitable jurisdiction, the Ruiz Court held that a defendant must be afforded the right to waive its “lack of equitable jurisdiction” defense to remain in federal court. In so holding, the Ninth Circuit recognized the difference between equitable jurisdiction, which it found to be waivable, and subject matter jurisdiction, which is an unwaivable limit on the federal court’s power. The Ninth Circuit’s decision in Ruiz provides an avenue for corporate class action defendants to stay in federal court despite plaintiffs’ attempts to subvert CAFA.

This article is available in the Jenner & Block Japan Newsletter. / この記事はJenner & Blockニュースレターに掲載されています。

Related Capabilities

© 2026 Jenner & Block LLP. Attorney Advertising. Jenner & Block LLP is an Illinois Limited Liability Partnership including professional corporations. This publication, presentation, or event is not intended to provide legal advice but to provide information on legal matters and/or firm news of interest to our clients and colleagues. Readers or attendees should seek specific legal advice before taking any action with respect to matters mentioned in this publication or at this event. The attorney responsible for this communication is Brent E. Kidwell, Jenner & Block LLP, 353 N. Clark Street, Chicago, IL 60654-3456. Prior results do not guarantee a similar outcome. Jenner & Block London LLP, an affiliate of Jenner & Block LLP, is a limited liability partnership established under the laws of the State of Delaware, USA and is authorised and regulated by the Solicitors Regulation Authority with SRA number 615729. Information regarding the data we collect and the rights you have over your data can be found in our Privacy Notice. For further inquiries, please contact dataprotection@jenner.com.

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