Is Polymarket legal in Kentucky?

The plaintiff is the Commonwealth of Kentucky, acting through its attorney general. The defendants are QCX LLC, the CFTC-registered exchange that does business as Polymarket US; its parent, Blockratize Inc.; and two sister companies, QC Clearing LLC and QC Tech LLC. The federal court calls the four "collectively 'Polymarket'" and notes that the three LLCs are "wholly owned subsidiaries of Blockratize, Inc." (report and recommendation, E.D. Ky. No. 3:26-cv-00047, ECF No. 41, p.1).

We have not read the Polymarket complaint itself, so what follows is the court's summary of it. The Commonwealth alleges that QCX "advertises and operates an online sports betting operation" in Kentucky without the licensing approval of the Kentucky Horse Racing and Gaming Commission (p.1). The court lists four counts, all under state law (p.2):

• two under the Kentucky Consumer Protection Act, KRS 367.100 et seq.: one for conveying "the false impression" that the company's sports-wagering operations were lawful in Kentucky, one for operating them "in blatant disregard for Kentucky law";
• one under the Loss Recovery Act, KRS 372.005 et seq., claiming that bets Kentuckians placed on the platform are void and that the Commonwealth "is entitled to money lost gambling";
• one under KRS 528.010 et seq., claiming the website and mobile apps are gambling devices under that chapter (p.12).

Those are the Commonwealth's allegations. No court has found any of them proved, and the federal court did not consider whether they are.

"The day after the Commonwealth filed its complaint, Polymarket filed a notice removing the matter to the Eastern District of Kentucky" (ECF No. 41, p.2). It gave two grounds. The first was federal officer removal under 28 U.S.C. § 1442(a)(1), on the theory that a designated contract market is "acting under" the CFTC because federal law delegates regulatory functions to it. The second was federal-question jurisdiction, on the theory that the state claims turn on whether its event contracts are lawful under the Commodity Exchange Act (pp.2-3). The Commonwealth moved to remand.

The magistrate judge's report rejects both. On the first, it reasons that the statute tasks an exchange with enforcing its own rules, not the CEA's, and that "Requiring a contract market, like Polymarket, to police its own operations is not the transfer of a federal officer's duties" (p.4). The report cites a March 2, 2026 order of the District of Nevada reaching the same conclusion on the same ground (pp.4-5).

On the second, the report finds the complaint "solely comprised of state law claims" (p.7). Whether the contracts are protected by federal law is, in its words, "an affirmative defense upon which the defendants bear the burden of proof" (p.10), and a defense cannot carry a case into federal court. It also relies on the Sixth Circuit's September 25, 2026 opinion in Kalshi's Ohio and Tennessee cases, which it says "answered an unsettled issue in this Circuit", so that "the remaining issues only concern Kentucky law" (p.9).

The conclusion reads: "IT IS RECOMMENDED that the Plaintiff's Motion to Remand, [R. 27], be GRANTED" (p.13). The report recommends denying the Commonwealth's request for costs and fees, because the Sixth Circuit ruled after briefing closed and "at least some of Polymarket's arguments were not objectively unreasonable" (p.13).

The report decides one thing: which court should hear the case. It does not decide whether Polymarket's contracts are sports wagering under Kentucky law, and it orders no one to stop anything. Until the district judge acts on it, it is a recommendation, not an order.

No order we have found in the Kentucky case says anything about accounts, open positions, deposits or withdrawals. The Loss Recovery Act count asks the court to treat Kentuckians' bets as void and to award the money lost (ECF No. 41, p.2), but a count in a complaint is a request, and no court has ruled on it.

The international site is a separate product, with its own rule that does not come from Kentucky. Polymarket's geographic restrictions page lists the whole United States as close-only: "Users can close existing positions but cannot open new ones, on both the frontend and the API."

Under the report's notice, objections must be filed "within fourteen days from the date of service", and a party may respond to another's objections within fourteen days after that (ECF No. 41, p.13). The district judge then decides whether to adopt the recommendation. If the judge does, the case returns to Franklin Circuit Court, where the four counts would be argued under Kentucky law.

The Sixth Circuit opinion the report leans on is KalshiEX v. Schuler, Nos. 26-3196/26-5235. The panel held that Kalshi "has not shown that its sports-event contracts satisfy the statutory definition of a 'swap'", and in the alternative that the CEA "neither expressly nor impliedly preempts Ohio's or Tennessee's gambling laws" (p.3). It does not name Polymarket. The same preemption question is in petitions before the Supreme Court, which Kalshi at the Supreme Court follows.

A ruling about which court hears a gambling case is not a tax ruling. There is no IRS guidance on event contracts; how prediction market trades are taxed covers the routes people file under, and Polymarket taxes covers the forms.

Kentucky sued Kalshi in its own complaint, not alongside Polymarket. That complaint names KalshiEX LLC, Kalshi Inc., Kalshi Klear Inc., Kalshi Klear LLC, Kalshi Trading LLC, Robinhood Markets, Robinhood Derivatives, Webull and Coinbase Financial Markets (complaint, p.1). Kentucky's case against Kalshi is a separate action in the same federal court, No. 3:26-cv-00048 (docket). We have not read a ruling in it.

Kalshi does appear in the Polymarket report. The magistrate judge relied on a March 3, 2026 order in which District Judge Gregory VanTatenhove sent a private company's Loss Recovery Act claim against Kalshi Inc. back to state court, on the reasoning that the Act's exemption is a defense (ECF No. 41, p.10). There is no Kentucky page in our Kalshi legal guide yet; Kalshi's legal status covers the states that have one.