Is Polymarket legal in Montana?
Last updated · how we verify
Mostly yes, but contested. Polymarket US relies on its federal CFTC designation, and Montana has issued a cease-and-desist to prediction-market operators. Polymarket US is the CFTC-regulated venue Americans use; the international exchange blocks US IP addresses entirely.
Status: Cease-and-desist issued · Regulator: Montana Department of Justice, Gambling Control Division · Verified 17 August 2026
What Montana has done
The Montana Department of Justice, Gambling Control Division has issued a cease-and-desist order to prediction-market operators. Unlike the 7 states in active litigation, Montana has not so far escalated the dispute into a court fight over federal pre-emption.
Montana routes sports betting through the state lottery with limited mobile access, and its Gambling Control Division has issued a cease-and-desist to prediction-market operators.
A cease-and-desist is an assertion of state authority, not a court ruling. It does not by itself establish that the state's view is correct — that is precisely the question being litigated elsewhere.
Source: theblock.co · verified 17 August 2026
The federal picture, briefly
Polymarket US lists event contracts on QCX LLC, a CFTC-designated contract market (DCM) with affiliated derivatives clearing organization (DCO). Polymarket acquired that licence by buying QCEX for $112 million in July 2025, reopened to US traders on 2 December 2025, and removed the iOS waitlist on 12 May 2026.
Operators and the CFTC argue the Commodity Exchange Act gives the CFTC exclusive jurisdiction over federally designated contract markets, pre-empting state gambling statutes. Several district courts have accepted that argument at the preliminary-injunction stage. No final appellate resolution as of August 2026.
Roughly roughly 43 of 50 states currently offer full-menu access to CFTC-regulated prediction markets.
Why this matters in Montana
Montana allows sports betting only in person, with no statewide mobile app. Remote options are therefore limited, which makes app-based event contracts a meaningfully different proposition from the local licensed offering.
Sports-betting status is included as background only. It is not legal advice, it changes, and it does not determine whether Polymarket US is available to you. Confirm with the Montana Department of Justice, Gambling Control Division and inside the app.
How access actually works
Two different venues, and the distinction matters more than anything else on this page:
- Polymarket US — the CFTC-regulated exchange. This is what US residents use. Available — no waitlist on iOS; Android is still rolling out behind a waitlist; there is no full web platform for US users yet. See app availability.
- The international exchange — non-custodial, settles in USDC on Polygon, and blocks US IP addresses. It is not an option from inside Montana, with or without a workaround, and attempting one breaches its terms.
Not available to US residents — the international exchange geoblocks US IP addresses.
You appear to be in the US. Polymarket’s international exchange blocks US IP addresses — use Polymarket US, the CFTC-regulated exchange, instead. See what’s available in your state.
Montana questions
Can I use Polymarket in Montana right now?
Polymarket US operates nationally under its CFTC designation, so it is generally available in Montana. However, the state disputes this, so availability can change — confirm in the app before funding. The international Polymarket exchange is a separate venue and blocks US IP addresses entirely.
Is trading on Polymarket a crime in Montana?
We are not aware of any Montana law that makes placing a trade on a CFTC-regulated event contract a criminal offence for an individual. State enforcement in this area has been aimed at operators, not customers. This is not legal advice; if the stakes matter to you, take advice locally.
Which regulator oversees this in Montana?
Gambling in Montana is overseen by the Montana Department of Justice, Gambling Control Division. Polymarket US, however, is regulated federally by the CFTC as a designated contract market — which is the source of the entire dispute: two regulators, two different classifications of the same product.
What are the alternatives in Montana?
Kalshi is the other main CFTC-regulated venue and faces the same state-by-state disputes. PredictIt operates with a much narrower political-only market list. Montana's licensed sportsbooks are regulated as gambling rather than as derivatives, which is a different legal product with different tax treatment. See our comparison of the alternatives.
Check another state
Polymarket in Ohio
Cease-and-desist issued. Regulator: Ohio Casino Control Commission.
Polymarket in Illinois
Cease-and-desist issued. Regulator: Illinois Gaming Board.
Polymarket in Michigan
Cease-and-desist issued. Regulator: Michigan Gaming Control Board.
Polymarket in New Hampshire
No state action reported. Regulator: New Hampshire Lottery Commission.