Are Prediction Markets Legal in Montana?

Last verified: 2026-07-15

Contested Scope: Sports contracts only

Unsettled — Montana's dispute is in active litigation right now

Montana is in the middle of active litigation over prediction markets, but no final ruling has settled the question one way or the other. Platforms are generally still operating in Montana while the case proceeds — that could change with the next court filing.

This is not legal advice. Prediction-market legality is contested and changes quickly. This page reflects publicly reported facts as of the last-verified date above and links to a primary or trade-press source below. Consult a licensed attorney in Montana and check each platform's own current state-availability page before trading.

What This Means for Kalshi vs. Polymarket in Montana

The dispute in Montana is specifically about sports-related contracts (who wins a game, a spread, a player prop) — on both Kalshi and Polymarket. Non-sports contracts (politics, economics, weather, entertainment) from either platform are not the subject of this fight in Montana. Kalshi and Polymarket US are both CFTC-regulated exchanges, and neither has a legal advantage over the other in this dispute — state actions in this category name multiple platforms at once, not one company exclusively.

The Full Picture in Montana

An April 2025 non-enforcement agreement (tied to Montana’s separate Nevada-adjacent case) dissolved in November 2025. Montana’s Gambling Control Division issued a second cease-and-desist letter (Apr. 6, 2026); Kalshi sued the state in federal court the same month. No ruling yet.

Source: SBC Americas — Montana second C&D Last verified: 2026-07-15

Why Is This Even Contested? The Federal-vs-State Fight

Prediction markets sit at the intersection of two legal regimes that currently disagree. Kalshi and Polymarket US register their contracts with the CFTC as swaps or event contracts on a federally designated exchange, and argue that federal law preempts conflicting state gambling law. State gaming regulators counter that sports-related contracts — betting on who wins a game, a point spread, or a player prop — are functionally sports betting, which most states require a separate license to offer. Federal appellate courts are currently split: the Third Circuit ruled for Kalshi on preemption grounds (April 6, 2026), while a federal judge in the Southern District of New York ruled against Kalshi on the same underlying question (July 8, 2026). This is genuinely unresolved law, not a settled "CFTC means legal everywhere" fact — treat any claim that federal registration alone guarantees legality in every state with skepticism.

Dispute is about sports-related event contracts specifically (who wins a game, point spreads, player props). Non-sports event contracts (politics, economics, weather, entertainment) are not the subject of the dispute in this state.

Montana-Specific Timeline

No entry specifically naming Montana appears in our regulatory timeline as of the last-verified date -- consistent with Montana not having a reported dispute. See the full timeline for the national picture that shapes every state's position, including Montana's.

Frequently Asked Questions

Is Kalshi legal in Montana?
Montana is in the middle of active litigation over prediction markets, but no final ruling has settled the question one way or the other. Platforms are generally still operating in Montana while the case proceeds — that could change with the next court filing. An April 2025 non-enforcement agreement (tied to Montana’s separate Nevada-adjacent case) dissolved in November 2025. Montana’s Gambling Control Division issued a second cease-and-desist letter (Apr. 6, 2026); Kalshi sued the state in federal court the same month. No ruling yet.
Is Polymarket legal in Montana?
The same status applies to Polymarket as to Kalshi in Montana -- state actions in this category virtually always name multiple platforms rather than one exclusively. The dispute in Montana is specifically about sports-related contracts (who wins a game, a spread, a player prop) — on both Kalshi and Polymarket. Non-sports contracts (politics, economics, weather, entertainment) from either platform are not the subject of this fight in Montana. Kalshi and Polymarket US are both CFTC-regulated exchanges, and neither has a legal advantage over the other in this dispute — state actions in this category name multiple platforms at once, not one company exclusively.
Why is Montana disputing prediction market legality?
An April 2025 non-enforcement agreement (tied to Montana’s separate Nevada-adjacent case) dissolved in November 2025. Montana’s Gambling Control Division issued a second cease-and-desist letter (Apr. 6, 2026); Kalshi sued the state in federal court the same month. No ruling yet.
Where can I check the latest prediction market status for Montana?
This page cites its primary source directly (SBC Americas — Montana second C&D) and was last verified 2026-07-15. For the full 51-row tracker and the complete regulatory timeline, see the Odds Reference prediction markets legal tracker -- this is a fast-moving area and any single page, including this one, can lag the latest court filing.

Related Reading

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