Are Sweepstakes Casinos Legal in Montana? Status & Law

Quick answer

Gov. Greg Gianforte signed SB 555 on May 16, 2025 (effective Oct. 1, 2025), making Montana the first state to ban sweepstakes casinos in the 2025-2026 legislative wave. The law does not name "sweepstakes" directly, but expands the definition of internet gambling to include any platform, website, or app that transmits or receives gambling information, accepts wagers in any currency, or makes payouts of any currency -- squarely covering dual-currency sweeps play. Violations are a felony punishable by up to $50,000 in fines and/or 10 years in prison.

Regulatory specifics

Montana is tracked as Banned (confidence: high). SB 555 expands the definition of illegal internet gambling to cover dual-currency sweepstakes platforms; felony penalties. Effective Oct. 1, 2025 -- the first state to enact a sweeps ban in the 2025-2026 wave.

What else is regulated in Montana

• Real-money casino: varies by jurisdiction
• Sportsbook: varies by jurisdiction
• Daily fantasy: varies by jurisdiction
• Lottery: state lottery available
• Social casino: widely available

Pending legislation in Montana

• SB555 — Generally revise gambling laws (expands illegal internet gambling definition to cover dual-currency sweeps). (Signed into law)

See all tracked bills →

Sources

• https://legiscan.com/MT/bill/SB555/2025
• https://casinobeats.com/2025/05/27/montana-becomes-the-first-state-to-officially-ban-sweepstakes-casinos/
• https://www.playusa.com/news/montana-enacts-full-ban-on-online-gambling/

Operators in Montana

Practical guidance

Confirm age and residency in each operator’s official rules before registering. Prize redemptions usually require KYC and a minimum Sweeps Coin balance. For legitimacy checks beyond Montana, read are sweepstakes casinos legit? and the national state legality hub.

FAQs

Are sweepstakes casinos legal in Montana?

Montana is currently tracked as "Banned". SB 555 expands the definition of illegal internet gambling to cover dual-currency sweepstakes platforms; felony penalties. Effective Oct. 1, 2025 -- the first state to enact a sweeps ban in the 2025-2026 wave. This is an editorial legal monitor, not legal advice.

Which sweepstakes casinos are available in Montana?

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