Kalshi, a prediction market operator, has initiated legal proceedings against the state of Illinois, aiming to prevent the enforcement of new taxes and licensing regulations that would categorize the company as a sports betting operator starting July 1.
The lawsuit was lodged in the U.S. District Court for the Northern District of Illinois and represents a significant development in the ongoing legal confrontations between prediction market platforms and state gaming authorities across the nation.
Illinois officials contend that Kalshi and similar entities are essentially providing sports betting products without adhering to the same regulatory frameworks that licensed sportsbooks like DraftKings and FanDuel must follow.
In contrast, Kalshi asserts that its offerings are federally regulated “event contracts” governed solely by the Commodity Futures Trading Commission (CFTC), rather than being classified as sports bets subject to state gambling regulations.
“This lawsuit addresses the clear infringement by the State of Illinois on the Supremacy Clause regarding the regulation of event contracts,” the company indicated in its legal filing.
This legal action comes in the wake of Illinois’ newly approved $55.9 billion state budget, which has introduced additional taxes on sports wagering through Senate Bill 3019. This legislation imposes a 1.75% tax on the first 5 million sports wagers placed each year via prediction markets, escalating to 3.5% for amounts exceeding that threshold. It also mandates that operators like Kalshi secure an Illinois sports betting license.
Kalshi has criticized the licensing process as “costly and burdensome.” Under Illinois regulations, obtaining an online sportsbook license requires a hefty $15 million upfront fee valid for four years, along with $1 million renewal fees thereafter.
The company has also raised concerns about Illinois’ geolocation mandates, which require licensed operators to accept wagers only from users physically present in the state. Kalshi argues that such geographical restrictions would contradict federal CFTC requirements that regulated contract markets function on a national level.
This case is part of a larger national discussion regarding whether prediction markets should be classified as financial exchanges or gambling products.
Previously, Illinois regulators had sent cease-and-desist letters to operators, including Kalshi and Polymarket, leading to separate legal actions from the CFTC earlier this year. In that instance, federal regulators contended that sports event contracts are more akin to commodities futures markets than traditional sports betting.
The debate has gained momentum as prediction markets draw increasing political and financial interest. Kalshi recently achieved a valuation of approximately $22 billion, establishing itself as a leading player in this sector.
Meanwhile, sports wagering is rapidly expanding in Illinois. State statistics referenced in the case reveal that Illinois residents lost nearly $1.5 billion on legal sports betting last year after accounting for payouts.
Kalshi is pursuing urgent relief through a temporary restraining order and preliminary injunction to prevent the law from taking effect next week. The office of Illinois Attorney General Kwame Raoul has stated that it is currently reviewing the complaint.