New York State sues betting platform Polymarket US

Financial contract in Washington, sports betting in Albany. New York State is suing Polymarket US, accused of operating an unlicensed gambling platform. The company immediately responded to federal justice, arguing that its markets fall exclusively under the Commodity Futures Trading Commission (CFTC).

Behind this procedure lies a question that goes beyond Polymarket: is federal approval sufficient to offer sports-related contracts in the fifty states?

New York wants to close the Polymarket sports markets

The complaint targets QCX LLC, the entity that operates Polymarket US. Launched in December 2025, this platform allows you to take a position on the results of sports competitions, elections and other events.

For the New York authorities, the financial vocabulary does not change the nature of the product. A user commits money to an uncertain event with the hope of obtaining a gain: the operation therefore constitutes a bet under local law. However, Polymarket does not hold any license issued by the New York State Gaming Commission.

The state also criticizes the platform for accepting users aged 18 to 20, while mobile sports betting remains reserved for people aged at least 21 in New York. The complaint also mentions contracts involving local university teams, yet prohibited even to approved operators.

Attorney General Letitia James is asking the court to prohibit Polymarket from continuing these activities in the state. It also requires a complete statement of positions taken, losses suffered by clients and income received.

The potential bill remains difficult to quantify. New York is seeking restitution of the sums concerned, a penalty of up to three times the winnings deemed illegal as well as $100,000 for each offer or attempted offer of unauthorized sports betting. These amounts constitute the prosecution's demands, and not sanctions already imposed.

Polymarket invokes federal jurisdiction of the CFTC

Polymarket has requested that the case be transferred to the federal court for the Southern District of New York. The company also filed its own complaint against Letitia James and several gaming commission officials.

His reasoning is based on the status of QCX. The CFTC officially recognizes Polymarket US as a Designated Contract Market, a federally registered derivatives market since July 2025. The company therefore maintains that its event contracts fall under federal law and that states cannot apply their own gambling rules to them.

New York defends the opposite reading: CFTC supervision would not automatically transform a sports bet into a locally authorized financial product. The state had already initiated comparable proceedings against Kalshi, Polymarket's main competitor.

The conflict is therefore less about the technical functioning of the platforms than about the authority responsible for monitoring them. Operators are demanding a single federal framework, while states want to retain their historic powers over gambling, the age of participants and taxation.