Contested. Kalshi publishes no state list that names Wisconsin, and none of the sources we checked bars it there. Wisconsin has acted against Kalshi: e.D. Wis. (Judge Griesbach) stayed and administratively closed US v. Wisconsin pending decisions on appeals (docket text, doc 72).
Kalshi and the alternatives in Wisconsin
What the law says
8 SEP 2026E.D. Wis. (Judge Griesbach) stayed and administratively closed US v. Wisconsin pending decisions on appeals (docket text, doc 72). courtlistener.com ↗
28 JUL 2026E.D. Wis. (Judge Griesbach) denied the CFTC's motion for a preliminary injunction against Wisconsin enforcing gambling law against five sports event contract venues; also denied intervention. storage.courtlistener.com ↗
28 APR 2026CFTC and DOJ sued Wisconsin in E.D. Wis. (US v. Wisconsin, 2:26-cv-00749), CFTC release 9220-26, after Wisconsin sued five prediction markets. cftc.gov ↗
23 APR 2026Wisconsin DOJ announced lawsuits against Kalshi, Robinhood, Coinbase, Polymarket, Crypto.com and affiliates over alleged illegal sports betting via event contracts. wisdoj.gov ↗