Legal sports betting by state / Massachusetts

Is sports betting legal in Massachusetts?

Legal, online and in person

Yes. Sports betting is legal in Massachusetts, including online and mobile betting through state-licensed sportsbooks.

In-person sports wagering began at the three casinos on January 31, 2023, and mobile wagering began on March 10, 2023. Wagers on Massachusetts college teams are not allowed unless the team is playing in a collegiate tournament.

Licensed online sportsbooks in Massachusetts

As listed by the Massachusetts Gaming Commission:

• BetMGM
• Caesars Sportsbook
• Fanatics
• Penn Sports Interactive
• Bally Bet
• DraftKings
• FanDuel

What these books charge

Every sportsbook builds a margin into its prices. We measured it on NBA player props over the 2025-26 season. Lower is cheaper for you. Among the books licensed in Massachusetts:

Margins are national averages across states. Full tables by market: which sportsbook charges the most vig. What the number means: hold vs vig.

Questions

Is sports betting legal in Massachusetts?

Yes. Sports betting is legal in Massachusetts, including online and mobile betting through state-licensed sportsbooks.

Who regulates sports betting in Massachusetts?

The Massachusetts Gaming Commission.

Sources

• Sports Wagering Licensees - Massachusetts Gaming Commission
• Frequently Asked Questions - Massachusetts Gaming Commission
• Sports Wagering in Massachusetts - Massachusetts Gaming Commission

Laws change. We check each state against its regulator; if you see something out of date, write to [email protected]. This page is information, not legal advice.

Other states with the same status: Arizona, Colorado, Connecticut, Delaware, District of Columbia, Florida, Illinois, Iowa. All states.