A self-described gambling addict from Raynham recently filed a class action lawsuit accusing Kalshi of offering illegal betting to Massachusetts residents, according to a complaint filed in Suffolk Superior Court. The legal action is the latest escalation in a fight over the prediction market industry’s operations in the Bay State.
The lawsuit, filed in Suffolk Superior Court on April 22, 2026, alleges that Kalshi and related companies allowed users to place sports wagers without a Massachusetts license, violating state gambling laws and causing financial losses to consumers.
“Defendants’ unlawful conduct has caused substantial harm to Massachusetts consumers,” the complaint states, alleging users lost money on wagers and were exposed to risks associated with online gambling.
