Massachusetts sports betting

Is sports betting legal in Massachusetts?

Yes. Massachusetts allows sports wagering, including on mobile apps, under licenses issued by the Massachusetts Gaming Commission. Sports wagering is the only online gambling the MGC licenses; online casino games remain unlicensed. Our Massachusetts online casinos hub covers the rest of the picture.

The distinction matters for anyone in Boston, Worcester or Springfield who sees an offshore site advertising both a sportsbook and a casino. The sportsbook part may look like the licensed apps, but unless it's on the MGC's list, it has no Massachusetts license and no state oversight.

Legal Massachusetts sports betting apps: the MGC-approved list

The MGC's page announcing its Official Sports Betting Seal of Approval (opens in a new tab) names seven approved operators. The seal is meant to help bettors tell a licensed sportsbook from an illegal one at a glance.

Approved lists can change as operators enter or leave a market, so check the MGC's site for the current names before you sign up. Bonus offers, apps and markets vary by operator, and we don't review them here.

How Massachusetts legalized sports betting: law and launch timeline

Sports betting became possible state by state after the Supreme Court's May 14, 2018 decision in Murphy v. NCAA struck down the federal ban known as PASPA. Our PASPA and Murphy v. NCAA page explains the ruling. Massachusetts followed four years later.

The exact retail and mobile launch dates weren't confirmed in the official sources we rely on, so we haven't listed them. The October 2022 report gave January 2023 as the hoped-for start.

Massachusetts sports betting age and account rules

The minimum age for Massachusetts casinos is 21. The sports wagering age wasn't confirmed in the sources we use for this page, so check the age stated in the app's terms and on the MGC's site before you register.

Register with your own accurate details, and never use someone else's account; a sportsbook's terms set out what happens to an account opened with false information. If you want a break, licensed sportsbooks fall under the state's oversight, and our state self-exclusion lists page explains how programs work.

Offshore sportsbooks and the Attorney General's crackdown

Massachusetts has acted directly against offshore betting sites. In October 2024, Attorney General Campbell's office sent a cease-and-desist letter to Bovada's operators, Harp Media B.V. and Hove Media, demanded refunds for Massachusetts customers, and said marketing a site as 'USA-based' breaks the state's consumer protection law, M.G.L. c. 93A. Bovada's own help page lists Massachusetts among the states it won't serve.

On June 25, 2025 the office sent cease-and-desist letters to BetOnline.ag and Sportsbetting.ag (opens in a new tab), describing illegal offshore casino and sports betting operations. The MGC adds that offshore operators aren't licensed by any state and may refuse to pay winning bets. Read our Bovada review and BetOnline review for each brand's record.

Our player protections: offshore vs licensed guide and the cease-and-desist letters tracker go further.

Federal law behind Massachusetts sports betting

The Wire Act, 18 U.S.C. § 1084 (opens in a new tab), bars people in the betting business from using wire communications to take interstate or foreign sports bets. It exempts information sent between places where the betting is legal. In January 2021 the First Circuit held that the Act's prohibitions apply only to sports betting, a reading the Justice Department's 2018 opinion had disputed. See our Wire Act page.

Congress is also looking at sports betting again. The SAFE Bet Act of 2025 would set federal minimum standards for state-regulated sportsbooks, and several 2026 bills would keep sports and casino-style contracts off federally regulated prediction markets. None is law yet; our prediction markets page tracks them.

Taxes on Massachusetts sports betting winnings

Sports betting winnings are taxable federal income. Under the IRS Form W-2G instructions (opens in a new tab), a payer files a W-2G in 2026 when sports winnings are $2,000 or more and at least 300 times the wager. Regular 24% withholding applies when winnings minus the wager exceed $5,000 at that 300-times level.

1. A $10 parlay pays $3,500. That's 350 times the stake and above $2,000, so a W-2G is due; winnings minus the wager are $3,490, under $5,000, so regular withholding doesn't apply.
2. A $100 bet pays $2,500. That's only 25 times the stake, so no W-2G is required, but the profit is still taxable.
3. Track losing bets too. Losses are deductible only up to winnings, and from the 2026 tax year the deduction is reported to be capped at 90% of losses; check IRS guidance.

Massachusetts state income tax on winnings isn't covered here; check with the Department of Revenue or a tax professional. Our W-2G form and gambling loss deduction pages explain the federal rules.

How to bet on sports legally in Massachusetts

1. Check the operator's name against the MGC's current approved list and look for the Official Sports Betting Seal of Approval.
2. Download the app from the operator's official listing, not from a link in a text message or social post.
3. Register with your own accurate details and confirm the age requirement in the terms.
4. Set a deposit limit before your first bet, and decide in dollars what a losing week can cost.
5. Keep a simple log of stakes and returns for tax time.

For other options in the state, see Massachusetts gambling laws, mobile casinos in Massachusetts and the national overview of sports betting laws.

Problem gambling help for Massachusetts bettors

Sports betting apps sit on your phone all day, and live betting can turn one game into dozens of decisions. If betting stops feeling like entertainment, reach out early.

The Massachusetts Problem Gambling Helpline (opens in a new tab) is 1-800-327-5050, or text GAMB to 800327. The national NCPG line is 1-800-MY-RESET (1-800-697-3738), with call, text and chat through the National Council on Problem Gambling (opens in a new tab). In a crisis, call or text 988.

Online casino offers for Massachusetts sports fans via our links

None of our seven partners runs a sportsbook, so we can't offer a sports betting partner. For sports bets, use an MGC-approved app. The two offers below are online casino offers, shown for readers who also play slots. Both casinos are offshore and not licensed or regulated by Massachusetts or any US state; check Massachusetts law before you play, and remember there's no state regulator for complaints and no state protection for balances. We earn a commission through our links, and the order is commercial, not a test result.

Slot Madness Casino: $2,500 Welcome Bonus + 50 Free Spins, via our link (new players, 21+ or 18+ where allowed, terms apply). Third-party reviews list a 275% match with code MAD275, a $30 minimum deposit, 30x deposit plus bonus on slots and no maximum cashout, with a reported $2,500 weekly withdrawal cap. The Michigan Gaming Control Board named Slot Madness in an August 14, 2025 order to illegal offshore operators. Read the Slot Madness review.

SlotoCash Casino: $6,000 Welcome Bonus + 60 Free Spins, via our link (new players, 21+ or 18+ where allowed, terms apply). The casino's own site advertises $7,777 plus 300 spins over five deposits, at 25x deposit plus bonus with a $20 minimum per bonus and no maximum cashout; its weekly withdrawal cap is $5,000. Michigan named SlotoCash in an October 8, 2026 cease-and-desist release. See the SlotoCash review.

Terms shown at sign-up apply. Bonuses are slot-focused; table games are often excluded or weighted lower. For the legal and practical risks, read real money online casinos in Massachusetts.

21+ (18+ where allowed). Every casino game has a built-in house edge, so over time you should expect to lose what you stake. Set a budget before you play and stop when it’s gone: responsible gambling tools and free help. Gambling problem? Call or text 1-800-MY-RESET (1-800-697-3738).