TL;DR:
- Federal lawsuit: Kalshi filed a lawsuit in the U.S. District Court for the Northern District of Illinois following the passage of bill SB 3019.
- Jurisdictional conflict: The company alleges that Governor JB Pritzker and other state officials usurped the exclusive regulatory authority of the CFTC.
- Effective date: The controversial legislation, which redefines prediction market operations as sports betting, takes effect on July 1, 2026.
Kalshi sues Illinois in federal court over a new legislative reform that expressly bans sports event contracts on its platform.
The legal action targets State Governor JB Pritzker and Attorney General Kwame Raoul. The company reported that state authorities allegedly violated the legal supremacy of the U.S. Commodity Futures Trading Commission (CFTC). The platform contends that the enacted law, known as Senate Bill 3019 (SB 3019), violates current federal regulatory provisions.
Conflict over control of prediction markets
The state measure was originally integrated into an Illinois budget package for the 2027 fiscal year. The terms of the statutory text point out that the regulations modify the definition of an “exchange wager” to include any contract or transaction executed on a prediction market tied to a sporting contest. This assimilation subjects companies in the sector to the same tax and licensing guidelines that govern traditional sportsbooks.
Industry data indicates that the Illinois budget also contemplates the application of levies on digital asset transactions at 0.2%. The technical breakdown of the legislation further stipulates a tax rate that escalates up to 3.5% for exchange wagers in prediction markets once the threshold of five million annual contracts is exceeded.
Kalshi’s defense argues in its judicial filing that the enforcement of these state rules will cause irreparable commercial harm starting next July 1, 2026. The company notes that being forced to develop exclusive geoblocking tools for Illinois residents would breach the uniformity requirements demanded by the CFTC.
The underlying debate lies in the legal nature of these financial instruments. Under the perspective of the current federal administration, contracts linked to sports outcomes are framed as “swap” type financial instruments. Therefore, it is projected that their oversight corresponds solely to the federal body under the Commodity Exchange Act (CEA).
Competency dispute at a national level
The Illinois case represents the most recent episode within a broader confrontation between federal regulators and gaming commissions across various states in the Union. The CFTC, under the direction of Commissioner Michael Selig, firmly maintains that state agencies lack the authority to intervene in derivatives markets that already hold a federal registration.
Legal sector reports confirm that the CFTC initiated similar litigation against other jurisdictions in the country. During recent months, the federal agency filed lawsuits against states such as Kentucky, Arizona, and New Mexico in response to local restrictions applied to prediction operators.
Legal experts estimate that the accumulation of conflicting rulings among district courts could accelerate the movement of the conflict toward the Supreme Court of the United States. The definitive resolution of the Illinois case will depend on the upcoming hearings scheduled in the Chicago federal court during the third quarter of 2026.
