Kentucky Sues Polymarket and Kalshi Over Illegal Betting

Kentucky Attorney General Russell Coleman filed lawsuits against Kalshi and Polymarket, alleging they operate as unlicensed sports betting platforms.

Kentucky Attorney General Russell Coleman filed three separate lawsuits in Franklin Circuit Court, accusing prediction platforms of operating as unlicensed bookmakers under the guise of “event contracts.” According to state authorities, these companies systematically bypass existing sports betting regulations and fail to comply with critical consumer protection requirements.

The defendants named in the legal actions include Kalshi alongside its prominent partners Coinbase, Robinhood, and Webull. The litigation also targets Polymarket, which has surged in popularity over recent months to become a dominant platform for trading predictions on political, economic, and sporting outcomes.

Prosecutors allege that nearly 89% of Kalshi’s total trading volume is directly tied to sporting events. This high concentration, the state argues, aligns the platform much closer to a traditional sports betting operator than a regulated financial derivatives market.

Dispute Involves Billions of Dollars in Volume

These lawsuits arrive at a time of unprecedented growth for prediction markets. Driven by the recent US presidential election and a sharp rise in public interest surrounding political and economic forecasting, the sector has rapidly evolved into one of fintech’s fastest-growing niches.

Kalshi and Polymarket maintain that they offer fully regulated probability trading markets rather than conventional gambling products. They assert that their event contracts represent financial instruments subject to federal oversight, placing them outside the jurisdiction of individual states.

However, local authorities are increasingly challenging this legal stance. Regulators across various US regions have begun questioning whether sports-focused prediction markets differ fundamentally from classic sports wagering.

Kentucky further claims that these platforms do not provide adequate tools to combat gambling addiction. Additionally, authorities state that the companies fail to meet the operational standards mandatory for licensed sports betting operators within the state.

Companies Already Fighting a Separate Battle Against the State

This legal offensive hits the platforms just days after Kalshi, Polymarket, and Crypto.com launched their own joint lawsuit against Kentucky.

The companies are actively contesting a new 14.25% tax levied on prediction market transaction fees, which was approved by the local legislature in April.

Industry players argue this specific tax rate is discriminatory, placing their sector at a distinct disadvantage compared to traditional betting formats and horse racing operations.

Representatives from the space claim the tax will inflate consumer costs and potentially drive trading activity toward unregulated offshore platforms. Furthermore, the companies maintain that their products fall square under the jurisdiction of the Commodity Futures Trading Commission (CFTC), which they argue limits the ability of individual states to impose extra restrictions.

The Outcome Could Carry National Significance

The crypto industry and broader financial markets are watching the Kentucky case closely, as it could set a major precedent for the future regulation of prediction markets across the United States.

Over the past year, Kalshi and Polymarket became some of the most discussed platforms in the space, drawing billions of dollars in trading volume alongside growing institutional interest. High-profile partnerships with firms like Coinbase and Robinhood have expanded access to these products even further.

The resolution of these legal battles in Kentucky could dictate whether prediction markets continue growing as federally regulated financial instruments or face treatment as sports betting by state authorities. This critical question has the potential to reshape the rules for an industry valued at tens of billions of dollars, positioned at the intersection of finance, crypto, and online wagering.