You can’t open a sweepstakes account from Montana. SB 555 made running one a felony in May 2025, and every major brand had the state geo-blocked by October 1, 2025. Montana takes it a step further than most: under a separate statute, you carry your own misdemeanor exposure.
We mapped out what you can legally play instead, what to do if you’ve still got an old account, and the long list of brands that walked.
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Every site on this list passed our cashout, free entry, and deposit-pressure checks. The rest didn’t make it.
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Montana didn’t ease into the 2025 ban wave; it started it. Sweepstakes casinos were gone from the state by October 1, 2025, so you have no account to open here.
Governor Greg Gianforte signed SB 555 on May 12, and it landed harder than anything before it, sweeping up sweepstakes, predicting markets, and just about any unlicensed online gambling, all under felony penalties of up to 10 years in prison and $50,000. By that October 1 deadline, every major brand had IP blocked and literally ran away.
And Montana goes a massive step further than most. Under MCA 23-5-161, you carry your own misdemeanor exposure, not just the sites, although no individual player has been charged for it yet. The first table spells out the law without the jargon, and the second gets straight to what it means for you.
| Are sweepstakes casinos illegal in Montana? | Yes. Montana’s sweepstakes ban (SB 555) took effect October 1, 2025. Operating one is a felony. |
| What does SB 555 actually ban? | Any platform that transmits gambling information, accepts bets in any currency, or makes payouts in any currency. |
| What’s the penalty for operators? | Up to 10 years in prison and $50,000 per offense. Fines go directly to the Department of Justice budget, not the state general fund. |
| Who enforces SB 555? | The Montana Department of Justice. SB 555 gave the DOJ explicit authority to pursue felony charges against unlicensed operators. |
| Did SB 555 ban anything besides sweepstakes? | Yes. SB 555 is broader than most state bans. It also covers prediction markets (Kalshi, etc.) and any unlicensed online gambling, not just sweepstakes. |
| What about free social casinos (Gold Coins only)? | These can still operate. The ban targets platforms that make payouts in “any currency,” which means dual-currency systems with cash redemption. |
| What can I legally play in Montana? | Video poker machines in bars and restaurants, tribal casinos, the Montana Lottery, retail sports betting (through the Montana Lottery), and parimutuel horse racing. No online casinos. |
| Can I sign up to a sweepstakes site in Montana? | Mostly, no. Major brands block Montana at signup through IP restriction. The sites that still let you in are violating SB 555. |
| Can Montana charge me as a player? | Possibly. Montana is unusual in that players face misdemeanor exposure under MCA 23-5-161 for participating in forbidden gambling. Enforcement against individual players hasn’t happened. |
| What about an old account if I had one? | Operators required Montana players to redeem or forfeit Sweeps Coin balances before October 1, 2025. If you have an unredeemed balance, contact the operator directly. |
| Will a VPN help? | No. Sites verify your location at every login and close accounts that try to mask it. With Montana’s felony penalties, operators enforce geo-restrictions strictly. |
| Do I owe taxes on winnings from before October 2025? | Yes, federal and state. Tax law treats past sweepstakes winnings as taxable income regardless of how the state later classifies the activity. Report filed on Schedule 1; Montana taxes them at the state’s graduated rate (top 5.9% in 2026). |
Operators who officially left Montana
Compare Montana’s stance on sweepstakes casinos with those of its bordering states.
On paper, yes, which makes Montana unusual. Under MCA 23-5-161, a player can face a misdemeanor for taking part in prohibited gambling. Almost every other state’s ban touches operators alone, but Montana’s reaches the player, too. No individual has actually been charged since the ban took effect on October 1, 2025. So, the real risk is low for now, yet the exposure exists in a way it simply does not elsewhere.
SB 555 went after a category, not a single product. Most state bans name dual currency sweepstakes and stop there. Montana, instead, outlawed any platform that transmits bets or pays out in any currency, effective October 1, 2025. That sweep pulled in prediction markets and all unlicensed online gambling at once. So Montana did not write a sweepstakes ban; it wrote an everything ban that happens to include them.
Because the ban is aimed at the payouts, not the games. SB 555 catches platforms that pay out in any currency, which means real prizes changing hands. A pure social casino hands out no redeemable prizes, so nothing of value moves. That keeps it outside the ban, even though it offers the same slots and tables. So, Montana drew his line around the money, leaving prize free play untouched after October 1, 2025.
