Discover Financial Services has agreed to pay more than $1.2 billion to resolve a class action lawsuit alleging it systematically misclassified consumer credit cards as commercial credit cards, causing merchants to pay inflated interchange fees over a period spanning nearly two decades [1]. The settlement class covers merchants, merchant acquirers, and payment intermediaries that processed misclassified transactions between Jan. 1, 2007, and Dec. 31, 2023 [1].
The core allegation centers on interchange fee tiers. Card networks apply different fee schedules to consumer and commercial credit cards, with commercial cards typically carrying higher rates. Plaintiffs alleged that Discover routed consumer card transactions through the commercial fee tier, generating fee revenue in excess of what the applicable consumer card rates would have permitted [1]. The class period of roughly 17 years signals that plaintiffs argued the misclassification was not an isolated billing error but a structural practice embedded in how Discover coded and routed transactions across its network.
Interchange fee litigation against card networks and issuers has a well-established track record in federal court. The most prominent precedent is the long-running Visa and Mastercard interchange litigation, which produced settlements totaling several billion dollars over multiple rounds of negotiation. The Discover settlement, while involving a single issuer rather than a duopoly, tracks that litigation model: a nationwide merchant class, federal jurisdiction, and a damages theory built on the difference between fees charged and fees that should have applied [1]. The $1.2 billion figure places this settlement among the larger single-defendant resolutions in the merchant fee space in recent years [1].
The settlement was publicized as an active claims opportunity in May 2026, indicating that preliminary approval has been obtained and that the claims administration process is underway [1]. Eligible class members, including merchants and payment intermediaries that handled Discover transactions during the covered period, face a claims filing deadline to participate in the fund. Final approval by the presiding federal court remains a required step before any distribution occurs.
The outcome will be watched by payment industry participants and their counsel as a pricing-discipline signal. If the settlement receives final approval without significant objection from class members, it reinforces the legal exposure card issuers face when fee classification methodologies diverge from network rules, and it preserves the class action mechanism as an effective vehicle for aggregating what would otherwise be individually uneconomic merchant claims.