Kalshi Sues Illinois Over Prediction Market Tax – Kalshi, a prediction market platform, has initiated a federal lawsuit in Chicago to prevent the implementation of a new Illinois transaction tax on prediction markets. The company contends that this state-level regulation oversteps federal authority and is unconstitutional.
What Happened
Kalshi filed a federal lawsuit in Chicago seeking an injunction against new Illinois transaction taxes, which range from 1.75% to 3.5%, slated to apply to “exchange wagers” on prediction markets starting next month. State gambling regulators, including the Illinois Gaming Board administrator Marcus Fruchter, have previously characterized these prediction markets as unlawful sports betting, issuing cease-and-desist letters to Kalshi and competitors such as Polymarket, Crypto.com, and Robinhood in April, according to the Chicago Sun-Times.
Conversely, Kalshi maintains that the “event contracts” traded on its platform do not constitute gambling and are exclusively subject to federal oversight. This position aligns with that of the Commodity Futures Trading Commission (CFTC) under the Trump administration, which has asserted its sole regulatory authority over prediction markets. The CFTC reportedly sued earlier this year to block similar state-level regulatory attempts in Illinois, Arizona, and Connecticut, as well as New Jersey, which is also reportedly evaluating how to manage the expanding prediction market sector, according to Decrypt.
Key Details
- Kalshi’s lawsuit challenges an Illinois transaction tax ranging from 1.75% to 3.5% on “exchange wagers” in prediction markets, according to the Chicago Sun-Times.
- The company argues that prediction markets are not gambling and are solely regulated by the federal government, specifically the Commodity Futures Trading Commission (CFTC), according to Kalshi spokesperson Jacki McGavick.
- Illinois Governor J.B. Pritzker’s office stated the state will defend its authority to regulate these activities and protect consumers, while a Pritzker executive order reportedly bars state employees from using insider information in prediction markets.
- Illinois lawmakers reportedly did not include anticipated tax revenue from this new levy in the state budget, reflecting an expectation of legal challenges, according to the Chicago Sun-Times.
Why It Matters
This lawsuit signifies a direct legal confrontation between state and federal regulatory frameworks concerning prediction markets. The core of the dispute revolves around whether these platforms are considered illegal gambling, subject to state taxation and oversight, or federally regulated financial exchanges. The outcome could establish a precedent for how prediction markets are treated across other states grappling with similar regulatory questions, as noted by Cryptopolitan.
The conflict highlights the differing interpretations of prediction market activities, with state regulators viewing them as a form of wagering akin to sports betting, while operators like Kalshi, supported by federal regulators, classify them as event contracts. This distinction affects taxation, consumer protection measures, and the operational landscape for companies in this burgeoning industry. The Chicago Sun-Times reports that the legal challenge on Supremacy Clause grounds underscores the potential for similar disputes concerning other new taxes on digital platforms, such as social media companies and cryptocurrency exchanges.
What’s Next
The lawsuit will proceed in federal court in Chicago, where Kalshi is seeking an injunction against the new Illinois tax. The state of Illinois intends to defend its authority to regulate these activities. Illinois lawmakers reportedly did not incorporate revenue from this prediction market levy into the state budget, indicating recognition of potential legal challenges, as stated by the Chicago Sun-Times.
Originally reported by: Chicago Sun-Times. Published: 6/25/2026, 9:50:59 PM.