Illinois Prediction Market Law Draws Kalshi Lawsuit

Kalshi has gone to federal court before Illinois begins enforcing its new prediction-market rules. The case pits state gambling control against federal commodities oversight.

Kalshi filed its complaint in the U.S. District Court for the Northern District of Illinois. The defendants include Governor JB Pritzker, Attorney General Kwame Raoul, and other state officials.

Kalshi says it faces harm from July 1, when the contested provisions begin to affect its Illinois operations. According to Kalshi, it would have no clean option. It could restrict Illinois users and risk violating CFTC uniformity requirements. Alternatively, it could seek an Illinois sports wagering license and pay state-imposed taxes.

Kalshi wants the court to block enforcement of the law.

What Illinois Changed

SB3019 brings sports-linked prediction-market contracts into Illinois sports wagering law. It adds “exchange wager” as a term, which covers an agreement, contract, transaction, or swap offered, traded, or executed on a prediction market or exchange tied to a sporting contest or sporting event.

The law also adds a transaction tax of 1.75% on each exchange wager for the first five million exchange wagers conducted by a licensee in a fiscal year. The rate rises to 3.5% after that threshold.

From what can be seen, the state of Illinois seems to be allowing licensed sportsbooks to offer exchange products under the regulation of the Illinois Gaming Board. Existing prediction-market platforms would still face a difficult path, as they do not hold Illinois sports wagering licenses.

Federal Preemption Drives the Case

Kalshi’s argument is based on the Commodity Exchange Act. As a designated contract market with the Commodity Futures Trading Commission, the firm claims that event contracts traded on that exchange are within the exclusive jurisdiction of the CFTC.

However, Illinois does not share the same view. By including sports event contracts in the wagering law, the state has classified the product as a gambling matter. Kalshi claims that this is contrary to the federal law.

CFTC Fight Adds Pressure

Kalshi is not alone. In April, the CFTC sued Illinois, Arizona, and Connecticut for state interference in federally regulated prediction markets. The CFTC claimed that such event contracts should have a federal regulatory system, not a state-based one.

This dual issue makes Illinois a test case. The state is seeking consumer protection and regulation of gambling, while Kalshi and the CFTC are trying to ensure that prediction markets remain under federal market regulation.

Wider Impact for Sports Contracts

This case can affect the way other states deal with event contracts related to sports. A Kalshi win would strengthen the position of federally regulated exchanges. An Illinois win would give states more room to demand licensing, taxes, and geofencing.

The practical takeaway is clear. Illinois is trying to pull sports contracts into wagering law. Kalshi is trying to keep them inside federal market law. Until courts draw a firmer boundary, compliance plans in this sector will stay provisional and expensive.