Employer's arbitration clause fails to block worker's retirement plan lawsuit
Employers can't use arbitration clauses to block workers from suing on their retirement plan's behalf, a federal appeals court ruled.
On July 30, 2026, the Ninth Circuit US Court of Appeals affirmed a lower court's refusal to push a former employee's retirement-plan lawsuit into private arbitration. It is a decision worth a close read for any HR or benefits team that has added mandatory arbitration and class-action waivers to its retirement plan.
The dispute centres on The Capital Group Companies, a global asset manager, and its retirement plan, The Capital Retirement Savings Plan. A former employee sued the company and the plan's fiduciaries, alleging they mismanaged the plan's investments. She alleges the company kept five underperforming mutual funds because they generated millions in "fee income" rather than replacing them "with any one of the many prudent alternatives," according to the court. Those allegations have not been tested - this ruling was only about where the case is heard.
Here is the setup HR teams will recognise. The plan had been amended to add two things: a rule sending disputes to arbitration, and a waiver barring participants from bringing claims on "a class, collective, or representative basis." The company asked the court to enforce that language and move the case out of court.
The court declined. Federal benefits law - ERISA - lets plan participants sue on behalf of the entire plan when fiduciaries breach their duties. The catch, the court held, is that this kind of claim can only be brought in a representative capacity. A waiver banning representative claims therefore does not just switch the venue; it removes a statutory right. Under what is called the effective-vindication doctrine - a rule that voids arbitration terms that stop someone enforcing legal rights - the waiver could not stand.
Then came a second twist. The waiver stated that if a court found it unenforceable, representative claims would proceed in court rather than arbitration. So the fiduciary-breach case now heads to court.
The panel split 2-1. The dissent argued that "representative" in the waiver covered only class or collective actions, not suits on the plan's behalf, and that an arbitrator - not the court - should have decided whether the dispute belonged in arbitration in the first place.
The ruling binds employers within the Ninth Circuit's jurisdiction. For benefits committees, it sets a clear marker: an arbitration clause written to shut down plan-wide fiduciary claims may not hold up against ERISA.
