Polymarket Lawsuits 2026

Polymarket has grown into one of the largest prediction market platforms in the country, allowing users to trade on outcomes ranging from elections to sports to pop culture using blockchain-based contracts. Its growth, however, has been somewhat sidetracked by legal problems. Several lawsuits filed in 2026 argue that Polymarket’s sports-related contracts are not prediction markets at all, but unlicensed sports betting products that were never supposed to be available to the public in most states. Contact our consumer fraud lawyers to learn more about filing prediction market claims.

Polymarket’s Regulatory Background

‍Polymarket’s history with federal regulators is part of what makes the current lawsuits notable. In 2022, the Commodity Futures Trading Commission found that Polymarket had operated an unregistered facility for event-based contracts and ordered the company to stop serving U.S. users. Court filings in the current litigation allege that American traders kept reaching the platform anyway, through methods like VPNs, during the period it was supposedly closed to U.S. customers.

Polymarket later purchased a CFTC-licensed exchange and clearing operation and used it to launch a new, federally regulated version of the platform called Polymarket US, which launched and opened more broadly to U.S. users in late 2025–2026. The company points to this restructuring as proof that its products now comply with federal law. The lawsuits described below argue that, for sports contracts specifically, the corporate structure behind the platform does not change what the product actually is.

Related Class Actions

‍Two proposed class actions filed in the Southern District of New York in February 2026 form the core of the consumer litigation against Polymarket. One complaint, brought by a California plaintiff, argues that Polymarket has effectively repositioned itself as a nationwide sportsbook available in all fifty states while knowingly operating without the state licenses that sports betting requires. The complaint describes Polymarket’s sports offerings as functionally identical to a typical online casino or sportsbook, since users are simply placing money on the outcome of a game.

A second complaint, filed shortly after, raises similar claims on behalf of a different named plaintiff and adds that Polymarket’s public statements about the legality of its platform may have led consumers to believe their wagers carried no legal risk. Both cases remain in early stages, and Polymarket disputes the underlying characterization of its sports contracts as gambling.

State Action Aimed Specifically at Polymarket

‍Beyond the private lawsuits, Polymarket has drawn direct action from state regulators in a pattern distinct from other platforms in the industry:

• Nevada’s Gaming Control Board obtained a temporary restraining order against Polymarket just before the Super Bowl, temporarily cutting off its ability to accept wagers from state residents during one of its highest-volume weekends
• Illinois, Tennessee, and Connecticut each issued cease-and-desist orders specifically naming Polymarket among the platforms told to stop offering sports contracts
• Polymarket, rather than waiting to be sued, filed its own federal lawsuit against Massachusetts, seeking to block the state from enforcing its gambling laws against the platform before an enforcement action could be filed

This pattern of Polymarket taking the offensive in some states while defending consumer suits in others is part of what makes its legal posture different from competitors facing similar scrutiny.

The Paid Promotion Allegations

‍A separate complaint raises a more specific claim: that Polymarket’s own chief marketing officer used a personal payment account to send more than $350,000 to online influencers and public figures between January 2025 and February 2026 in exchange for content promoting the platform. According to the filing, some of this content was allegedly written by Polymarket staff themselves and, in certain instances, presented in a way that obscured its promotional nature from the people viewing it. These allegations are contested and have not been proven in court.

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‍None of the claims described on this page have been decided by a court. Polymarket disputes them and has not been found liable for illegal gambling, deceptive advertising, or any related claim. If courts ultimately side with plaintiffs on the sports betting theory, consumers who lost money trading Polymarket’s sports contracts, particularly in states with laws permitting recovery of gambling losses, may have a basis to pursue their own claims. Any potential recovery depends on the specific facts of your trading activity, the laws of your state, and the final outcome of the pending litigation. An attorney can help evaluate whether your situation supports a claim.