live (state-run)
March 2020
Montana Lottery
15%
18+
1 legal mobile
Legal Online Sportsbooks in Montana
These sportsbooks are licensed to operate in Montana and accept bettors aged 18+:
- Sports Bet Montana — Montana Lottery sportsbook.
Montana Market Overview
Montana operates a state lottery monopoly via the Sports Bet Montana app. Limited mobile choice; in-person sports betting is more common at retail outlets.
- State-monopoly mobile market — Sports Bet Montana only.
- Legal age is 18.
How to Sign Up at a Montana Sportsbook
- Choose a licensed sportsbook from the list above. (Operators not listed here are unlikely to be legal in Montana.)
- Click through to the operator review and use the linked sign-up button.
- Verify your identity (legal name, date of birth, last 4 of SSN, address).
- Confirm you're physically located in Montana — geolocation is checked at every login.
- Make a deposit and claim the welcome offer. Read the responsible gambling resources before betting.
Best Welcome Bonuses Available in Montana
For the latest welcome offers in Montana, see our continuously-updated bonus finder.
What to Bet On in Montana
- NFL betting — by far the largest single sport in every US state.
- NBA betting — heavy regular-season and playoff handle.
- MLB betting — long season, lots of markets, sharp F5 lines.
- College sports — football and basketball, with state-specific player-prop restrictions in some states.
- All sports betting hubs
Responsible Gambling Resources for Montana Bettors
If betting stops being fun, help is free and confidential. Call 1-800-GAMBLER or visit our responsible gambling page for state-specific resources, self-exclusion tools, and operator-level controls.
Frequently asked questions
Is online sports betting legal in Montana?
Yes. Online sports betting is regulated and live in Montana. The market launched in March 2020 under oversight of the Montana Lottery.
What sportsbooks are available in Montana?
At launch: Sports Bet Montana
What is the legal betting age in Montana?
The legal sports betting age in Montana is 18.
What is the tax rate on sports betting in Montana?
Montana taxes operator gross gaming revenue at 15%.
Are offshore sportsbooks legal in Montana?
No. Offshore sportsbooks are not regulated by any US authority and offer no consumer protections. Use only state-licensed operators.
More: all US states · operator reviews · current bonuses · strategy guides · 2026 industry report.