Massachusetts Online Sportsbooks 2026
Massachusetts launched mobile sports betting on March 10, 2023, and by the end of 2025 the Massachusetts Gaming Commission was reporting record-breaking monthly handle and nearly $19 million in single-month tax revenue.
Overview
- Launched: Mobile on March 10, 2023 (retail January 2023)
- Regulator: Massachusetts Gaming Commission (MGC)
- Tax rate: 20% on Category 3 (online) gross revenue; 15% on Categories 1-2 (retail)
- November 2025 handle: $914.7 million (state record)
- November 2025 tax: $18.9 million
Governor Charlie Baker signed H. 5164 in August 2022 legalizing sports betting. Retail books at Encore Boston Harbor, MGM Springfield, and Plainridge Park opened in late January 2023, and mobile operators including DraftKings, FanDuel, Caesars, and BetMGM went live on March 10, 2023.
Regulatory Backstory
The Massachusetts Gaming Commission licenses three categories: Category 1 (resort casinos), Category 2 (racetracks/simulcast), and Category 3 (online/mobile). Online sportsbooks face a higher 20% tax rate on gross sports wagering revenue, while in-person operators pay 15%. The MGC publishes detailed monthly reports broken down by operator and category.
Current Market Landscape
Massachusetts set a monthly handle record of $914.7 million in November 2025, generating $94.9 million in adjusted gross revenue and $18.9 million in state tax, according to MGC reports. Year-to-date through August 2025, the state reported $5.1 billion in handle, $466.2 million in GGR, and $104.7 million in tax contributions. The online market is dominated by DraftKings, FanDuel, BetMGM, Caesars, Fanatics, and ESPN Bet.
What Makes This State Different
Massachusetts explicitly bans wagering on in-state college teams unless they are participating in a tournament of at least four teams (meaning you can bet on Boston College in the NCAA tournament but not in its regular-season ACC games). The state also aggressively enforces advertising rules through MGC, including restrictions on university marketing partnerships.
How to Sign Up
Bettors must be 21+ and physically inside Massachusetts. Registration is fully remote with ID and SSN verification. Because MGC strictly enforces the in-state college rule, you will not see standard lines on Boston College, UMass, Harvard, or Northeastern during the regular season.
2026 Outlook
Massachusetts has rapidly grown into a top-10 US market. Expect continued enforcement-heavy regulation, and watch whether MGC revisits its college betting framework as tournament-season carveouts generate confusion. No serious tax rate change is currently on the table.
Responsible Gaming Resources
Massachusetts splits treatment support from exclusion logistics more clearly than most states. The statewide problem gambling helpline at 1-800-327-5050 offers free, confidential, multilingual treatment referrals, while PlayWell's 24-hour Safer Gaming Education Line at 1-800-426-1234 and live chat support the Voluntary Self-Exclusion enrollment process. MGC's VSE program lets players exclude from casino gambling, sports wagering, or both for one year, three years, five years, or lifetime, with phone, chat, in-person, and remote enrollment options; a reinstatement session is required before returning.
The Bottom Line
Massachusetts runs one of the most tightly regulated sports betting markets in the country, with a 20% online tax, active MGC enforcement, and strong responsible gaming investment. Record-breaking late-2025 handle shows the market is still growing heading into 2026.