Breaking the Mass-Arbitration Fee Trap: Defense Tactics After Wallrich, Frazier, and the AAA Rule Overhauls

Mass arbitration inverts the bargain a company thought it struck. A business adopts an arbitration agreement with a class-action waiver to channel disputes into individual proceedings and limit aggregate exposure. Claimants' counsel responds by filing not one arbitration but thousands or tens of thousands at once, each identical, each triggering an administrative fee the business must pay before any merits are reached. The aggregate fee demand can reach the millions before a single claim is examined, and the strategy depends on that arithmetic: settle the entire inventory, regardless of merit, or pay an enormous sum simply for the right to defend.

For several years the tactic ran largely in one direction. That is no longer true. Appellate courts have rejected efforts to force businesses to pay these fees, arbitration providers have overhauled their rules to cap up-front costs and police improper filings, and businesses have begun fighting back directly. This paper explains how the fee trap works, the decisions and rule changes that have reshaped the landscape, and how to draft and litigate against coercive bulk filings rather than settling meritless claims under fee pressure.

How the Fee Trap Works

The mechanics are straightforward and, by design, coercive. A company's arbitration agreement typically requires the company to bear the bulk of the arbitration provider's fees. When thousands of demands arrive simultaneously, the provider assesses a per-case or aggregate fee that, multiplied across the inventory, becomes enormous. Because the company must pay these fees before the merits are reached, even a wholly meritless inventory carries a large guaranteed cost just to begin.

That structure creates the pick-your-poison choice the tactic is built to exploit: pay millions in fees to defend claims that may be baseless, or pay a settlement to make the inventory disappear. The leverage comes not from the strength of the claims but from the cost of contesting them. Courts have recognized that this dynamic can interfere with the fundamental attributes of arbitration that the Federal Arbitration Act was meant to promote.

The Appellate Turn

Two appellate decisions have materially shifted the balance, and together they supply a powerful defense to the fee trap.

Wallrich: claimants must prove a valid agreement. In Wallrich v. Samsung Electronics America, Inc., 106 F.4th 609 (7th Cir. 2024), a group of 35,651 consumers filed arbitration demands alleging Illinois biometric-privacy claims. The provider assessed Samsung's share of the filing fees at more than four million dollars, Samsung refused to pay, the claimants declined to advance the fees, and the provider terminated the proceedings. When the claimants went to federal court to compel Samsung to arbitrate and pay, the Seventh Circuit reversed on two independent grounds. Most significantly, it held that the claimants had not carried their burden of proving a valid arbitration agreement, because they offered no evidence that any of them had actually purchased a Samsung device. The demands themselves, the court explained, were merely allegations.

The second ground reinforced the first. Because the agreement incorporated the provider's rules, which granted the provider discretion over fee disputes, and because the provider had exercised that discretion by terminating the proceedings, the district court had no authority to override the provider's judgment and compel payment. Once the provider closed the arbitration for nonpayment, the matter was complete.

Frazier: courts cannot compel fee payment mid-arbitration. In Frazier v. X Corp., 2025 WL 2502133 (2d Cir. Sept. 2, 2025), the Second Circuit held that a district court cannot intervene in an ongoing arbitration to compel a party to pay arbitration fees. The decision harmonized the Second Circuit with the Third, Fifth, Ninth, and Eleventh Circuits, producing a substantial body of uniform authority. The combined effect of Wallrich and Frazier is that claimants' counsel cannot reliably conscript the courts to force fee payment, whether the arbitration has been closed for nonpayment or remains pending.

The Provider Rule Overhauls

The major arbitration providers have rewritten their mass-arbitration rules in ways that significantly reduce the fee leverage. Understanding these rules is essential, because the agreement's incorporation of them is often what determines the outcome, as Wallrich itself demonstrated.

The fee cap. The American Arbitration Association's Mass Arbitration Supplementary Rules, effective in January 2024 and expanded that April, apply when twenty-five or more similar demands are filed with coordinated representation. Under the revised fee schedule, the business's up-front administrative initiation fee is capped at a flat amount regardless of how many cases are filed, replacing the prior per-case structure that drove the aggregate exposure. This single change substantially deflates the front-loaded fee threat.

The process arbitrator. The rules authorize the appointment of a process arbitrator to resolve administrative and threshold issues before the individual merits proceedings begin. This mechanism lets a business challenge the propriety of the filings, including demands filed in the names of nonexistent or unverified claimants, at the outset and at modest cost, rather than paying to litigate every individual case.

The accuracy affirmation. The revised rules require claimants' counsel to affirm the accuracy of the information in the demands. This requirement, backed by the prospect of sanctions-type consequences, directly targets the vetting gap, creating an obligation that filing counsel cannot satisfy if the inventory is padded with unverified or fictitious claimants.

Drafting to Resist Coercive Filings

The strongest defense to mass arbitration is built into the arbitration agreement before any dispute arises. The drafting decisions a company makes determine the tools available to it later.

Choose the provider and rules deliberately. Because the provider's rules can decide the fee question, as Wallrich shows, the selection of the provider and the incorporation of its mass-arbitration rules is a substantive choice, not a formality. An agreement that incorporates a provider's current mass-arbitration rules imports the fee cap, the process arbitrator, and the accuracy affirmation as contractual terms.

Consider bellwether and staging provisions. Agreements can provide for bellwether procedures that resolve a representative sample of claims before the full inventory proceeds, and for staged processes that test threshold issues first. These provisions, where enforceable, prevent the entire inventory from generating fees at once and channel the dispute toward an orderly resolution of common questions.

Draft with enforceability in mind. The countervailing risk is that an aggressively defense-tilted agreement is found unconscionable, as some courts have held. The drafting objective is a balanced agreement that resists abuse while remaining enforceable, because an agreement struck down for unconscionability provides no protection at all. Our mediation and arbitration teams draft and review arbitration provisions with both objectives in view, resistance to coercive filings and durability against an unconscionability challenge.

Litigating the Mass Arbitration

When a mass arbitration arrives, a disciplined response converts the appellate turn and the rule overhauls into practical defense. The following measures reflect that approach.

Demand proof of valid agreements. Wallrich establishes that claimants bear the burden of proving a valid arbitration agreement for each claimant, and that bare demands are only allegations. A business should require each purported claimant to substantiate that they are bound by the agreement, which in a padded inventory can eliminate a substantial share of the claims before any fee obligation is tested.

Use the process arbitrator to challenge the filings. Where the provider's rules allow, a business should invoke the process-arbitrator mechanism to raise threshold challenges to the inventory, including the accuracy of the filings and the existence of agreements, at modest cost and before the individual merits proceedings generate fees.

Resist judicial fee-compulsion. When claimants' counsel seeks a court order compelling fee payment, Wallrich and Frazier supply the authority to resist, whether the arbitration has been closed for nonpayment or remains ongoing. Our class action and MDL teams coordinate the defense of large arbitration inventories alongside any parallel class litigation, and our pre-litigation counseling teams help companies position their agreements and claims-handling before a mass filing materializes.

Conclusion

Mass arbitration was built to weaponize the very fees a business agreed to bear, turning the cost of defense into a settlement lever divorced from merit. The tactic is no longer as one-sided as it once was. Wallrich requires claimants to prove that valid agreements exist, Frazier and the circuits aligned with it bar courts from compelling fee payment, and the providers' rule overhauls cap the up-front fee, supply a process arbitrator, and demand that filing counsel vouch for their inventories. The businesses best positioned to break the fee trap are those that draft their agreements deliberately, incorporate current provider rules, preserve enforceability, and respond to a mass filing by demanding proof, challenging the inventory at the threshold, and resisting any effort to conscript a court into ordering payment. Used together, these tools let a company defend on the merits rather than capitulate to arithmetic.