Massachusetts Sports Betting: Top Sportsbooks, Apps, Promos (2026)

Since sports betting became legal in Massachusetts in 2023, the Gambling.com team has been reviewing online sportsbooks. 

You can trust our expert-reviewed ratings because we've used our combined decades of industry experience to compare sportsbook features like betting markets, promotional offers, and user experience. All Massachusetts sportsbooks and promos we recommend are licensed in the state and reputable nationwide.

All of our recommended sportsbooks operate with a Category 3 Sports Wagering Operator License from the Massachusetts Gaming Commission.

BetMGM signed as the Red Sox's first-ever sports betting partner back in March 2023, and it's the only operator on this list with the retail reach to match: 18 betting kiosks at MGM Springfield, open since retail launch day. Green Monster signage at Fenway, a stadium suite, and VIP batting-practice access round out a partnership that goes beyond branding alone. 

We particularly like the "Swing for the Fences" free-to-play game that runs throughout baseball season, though we found that customer support can be slow at times. 

Still, between its retail counter and real VIP perks at Fenway, BetMGM Massachusetts leads the way.

FanDuel became the Bruins' official sports betting partner the same day Massachusetts' mobile market launched. You'll see dasherboard signage inside TD Garden, Bruins marks usage, and co-branded content across both teams' channels. 

FanDuel holds just under 30% of all Massachusetts sports bets and has nearly 2 million user reviews, making it one of the most-reviewed sportsbooks in the state. 

Player props come through notably fast in testing, sometimes faster than anywhere else in Massachusetts. Bruins fans and NHL bettors will be happy with FanDuel Massachusetts' online markets and promos for the season.

DraftKings Massachusetts holds a freshly renewed partnership with the Celtics, extended in January 2026, plus a league-wide co-official sports betting partnership with the NBA itself. That's real access to team marks, league data, and branding most Massachusetts operators can't touch. 

The player prop menu backs it up, running the deepest coverage of any MA sportsbook, especially once the Celtics are in season, with localized promotions and strong odds to match. DK Social and free-to-play pools add a social layer, and a live tracker runs on every game, though live streaming itself can be limited. 

Holding roughly 50% of all sports bets in the state, the home-grown DraftKings Massachusetts carries an extensive betting menu, including season specials, for Celtics fans and NBA bettors.

Fanatics is currently the NFL's official sportsbook partner. That gets Fanatics promotional rights across NFL media, in-broadcast promotions, and hospitality access at events like the Super Bowl and the NFL Draft.

FanCash adds further value on top: a percentage of every wager comes back, whether it wins or loses, redeemable for bonus bets or spendable directly on Fanatics' memorabilia site. 

The lack of a desktop betting site is the only real gap, but Fanatics now offers official NFL tie-ins and features, like Fair Play prop-bet protections, pick'em contests, and sweepstakes giveaways, that can make a real difference for NFL bettors.

Rather than tying several retail sportsbooks to its online products (as the brand does in other states), Caesars Sportsbook Massachusetts leans on extensive daily odds boosts, the most of any Massachusetts sportsbook in testing. Bonus bets here typically have a longer usage window than competitors' (14 days at Caesars vs. 7 at most other places), and Caesars Rewards extends loyalty value even further. 

While customer support can be slow at times, we liked Caesars' in-app FireBets for microbetting on live in-game moments. 

Caesars Massachusetts is built for bettors who know markets well and want to chase the state's best daily boosts. 

We always give fair and balanced feedback based on our first-hand experiences. 

We sign up for all available Massachusetts sports betting sites to test betting options, evaluate odds, and claim promotions. This allows us to compare and choose the best platforms, maximize bonuses, and take advantage of each site's unique features, so you can choose the platform that best fits your specific needs and preferences.

Licensing & Security

When evaluating mobile apps, we consider multiple attributes, including market, features, promotions, and more. But, most importantly, our Gambling.com reviews will only recommend Massachusetts sportsbooks that are regulated and licensed by the Massachusetts Gaming Commission. 

So we always start by confirming the legality and licensing for every Massachusetts sportsbook we recommend. The Massachusetts Gaming Commission (MGC) regulates the sports betting market in the Commonwealth, issues licenses, and provides customer protection.

The most impactful security measures we look for are an SSL-encrypted connection and two-factor authentication to protect player data. 

Trust Factors

Betting on sports in Massachusetts is straightforward. Here's a step-by-step guide to get you started:

1. Choose a Licensed Sportsbook: Select a sportsbook that is licensed and regulated in Massachusetts. This ensures your betting experience is safe and fair.
2. Create an Account and Use the Welcome Bonus: Sign up for an account at your chosen sportsbook. Most offer a welcome bonus, which can boost your initial betting funds.
3. Verify Your Identity: To ensure security, you must verify your identity. This usually involves providing a copy of your ID or passport.
4. Deposit Funds: Add funds to your account. Most sportsbooks accept various payment methods, including credit cards, debit cards, and e-wallets.
5. Understand Bonuses and Promotions: Get familiar with the bonuses and promotions offered. These can provide extra betting funds or bonus bets.
6. Explore Betting Markets: Check out the different available betting markets. These can range from game outcomes to individual player performances.
7. Place Your Bets: Once you've done your research, it's time to place your bets. Remember to bet responsibly and enjoy the process.

Governor Charlie Baker signed HB 5164 on August 10, 2022, declaring betting legal in Massachusetts. The market launched online exactly six months later, on March 10, 2023. 

The state allows betting on most professional sports, while betting on college sports is partially limited in Massachusetts. Betting on youth sports and inter-collegiate competitions is not allowed.

Licensing is handled by the Massachusetts Gaming Commission (MGC), which has specific license categories for different operators.

Massachusetts sports betting law permits up to 15 online sportsbooks and allows retail sportsbooks in casinos and racinos.

While Massachusetts House lawmakers broadly agreed that legalizing sports betting would be beneficial for the state, significant disagreements delayed passage of every bill. Lawmakers debated the tax rate applied to Massachusetts betting sites and whether betting on in-state college teams should be banned. 

In the end, the final terms of HB 5164, titled the Massachusetts Sports Wagering Act, were as follows:

• Legal for individuals 21 years or older, but is restricted to those physically present in the state. 
• Sportsbooks are available to commercial casinos, racetracks or racinos, OTBs, and online operators.
• 15 available online sports betting licenses, seven of which are under a competitive tender process, and eight allocated to land-based casinos or racetracks. 
• The $5.2 million license fee is payable every five years.
• Online sports betting is subject to a 20% tax rate.
• Retail sports betting is subject to a 15% tax rate.
• Betting on in-state college teams is prohibited unless playing in a tournament of four or more teams.

You are required to pay taxes if you earn winnings from Massachusetts betting sites. 

You won't have to pay any tax on a Massachusetts betting promo. However, you may be liable for state and federal taxes on revenue derived from gambling. 

As per the local laws, the Massachusetts state tax on gambling is:

• 15% on retail sports betting (in-person) revenue
• 20% on revenue from online sports betting

You must declare all your winnings to the IRS and complete a W-2G form if you win over $600. Massachusetts sportsbooks can withhold up to 25% of your winnings for tax purposes. You must also declare your winnings on your state income tax return, payable at a flat rate of 6.25%.

Massachusetts shares a land border with five states, all of which have legalized online and retail sports betting. 

Vermont, New York, Connecticut, Rhode Island, and New Hampshire offer legal sports betting. All these states have the same restrictions for betting on in-state college teams.

• Sept. 30, 2026: The Massachusetts Department of Public Health's Office of Problem Gambling Services is expanding its recovery supports for people affected by gambling harm with a new mobile app called Evive.
• Aug. 31, 2026: The Massachusetts Gaming Commission announces a new program called Bet On Respect, designed to ban in-state gamblers who harass athletes.
• Aug. 21, 2026: The Red Sox begin promoting content tagged as "presented by Kalshi," even though a Massachusetts court order remains in force blocking Kalshi from offering sports-related contracts to people in the state.
• June 1, 2026: Every licensed Massachusetts sportsbook must begin notifying bettors within 48 hours of any account restriction, with a specific reason, as well as which markets or bet types have been limited.
• April 9, 2026: The Massachusetts Gaming Commission votes unanimously to reopen sportsbook licensing following a formal letter from bet365 indicating interest in applying for a state license.
• March 27, 2026: The Massachusetts Gaming Commission announces the launch of PlayWell as its new responsible gaming and player health program, replacing GameSense.
• Mar. 9, 2026: Massachusetts lawmakers advance Senate Bill 302, a measure to further restrict sports betting, including a ban on in-play wagers and prop bets, sending it to the Senate Ways and Means Committee.
• Jan. 27, 2026: Kalshi is ordered to stop offering sports-related contracts in Massachusetts after a judge upheld a January 20 ruling, giving the company 30 days to comply.
• Jan. 20, 2026: A Massachusetts judge issues an order that allows the Commonwealth to prohibit the prediction market Kalshi from offering sports-event contracts within the state. It's the first decision of its kind in the U.S.
• Dec. 1, 2025: ESPN BET rebrands as theScore Bet in Massachusetts.
• Sept. 12, 2025: Massachusetts Attorney General Andrea Joy Campbell files a lawsuit against Kalshi for promoting and accepting online sports wagers from Massachusetts customers without a license.
• Sept. 11, 2024: Operators, bettors, and responsible-gambling advocates publicly meet to discuss betting limits.
• July 2, 2024: Bally Bet launches online in Massachusetts.
• Feb. 16, 2024: Betr closes Massachusetts operations.
• Feb. 12, 2024: WynnBET announces closing operations in Massachusetts immediately.
• Nov. 14, 2023: ESPN BET launches in Massachusetts.
• Aug. 18, 2023: Caesars Sportsbook notifies the Massachusetts Gaming Commission that it has terminated an agreement with the Massasoit Greyhound Association, the company behind Raynham Park, to open a retail location there.
• March 10, 2023: MA online and mobile sports betting launches. Massachusetts sports betting revenue exceeded expectations, with over $550 million in bets placed in March.
• Feb. 23, 2023: March 10 is set as the online launch date.
• Jan. 31, 2023: Three retail sportsbooks in Massachusetts open for betting just before the Super Bowl. 
• Jan. 19, 2023: Six untethered mobile licenses are approved for launch.
• Oct. 6, 2022: The Massachusetts Gaming Commission reveals a tentative timeline for launching retail betting in January 2023 and online betting in February 2023.
• Aug. 10, 2022: Gov. Baker signs HB 5164 into law, legalizing sports betting in Massachusetts.
• Aug. 1, 2022: A new House bill, HB 5164, is formed from HB 3993. It is approved and moves to Gov. Baker for signing, following a bipartisan compromise on tax rates, advertising, and in-state betting.
• July 26, 2021: House Bill 3993 is read and referred to the Senate Ways and Means committee, effectively tabling the legislation for the following year.

Why Bet Online in Massachusetts

Massachusetts offers mobile and retail sports betting. While both have benefits, mobile wagering lets you take your favorite sports betting app with you on the go and wager from anywhere in the state.

• Flexibility: Mobile wagering lets you bet from anywhere within Massachusetts.
• Live Betting: You can bet on the game while it's in progress from anywhere in MA.
• Compare Apps: You’re never stuck playing with just one sportsbook app like you would be at a land-based sportsbook. 
• Convenience: Apps are far more convenient than waiting in line for a kiosk or a teller at a retail sportsbook.

No matter what bonuses you could earn from betting, you should never bet above your means or wager only to receive bonuses. Once you start doing so or chasing your losses, your gambling could turn from an entertainment hobby to a harmful addiction.

Massachusetts strongly promotes responsible gambling, with the Massachusetts Gaming Commission requiring sportsbooks to meet high standards for player protection. 

Use Legal Sites

Choosing a legal sportsbook in Massachusetts ensures a safe, protected betting experience. These regulated platforms offer several advantages over unlicensed or offshore operators. By choosing legal sportsbooks, bettors can have peace of mind, knowing their funds are secure and their wagers are placed within a regulated environment. Additionally, they contribute to the overall integrity of sports by detecting and preventing illegal activities, such as match-fixing. 

Resources

Massachusetts has adopted Game Sense as a responsible gambling strategy resource for bettors. GameSense offers interactive tools, including a budget-setting calculator and online quizzes, to engage Massachusetts bettors in a new and innovative way.

GameSense has info centers located at all Massachusetts casinos, where you can sign up for PlayMyWay, a personalized gambling plan. You can live chat 24/7 online with GameSense advisors, who are trained in responsible gambling practices and recognizing problem gambling behaviors.

All the operators we discussed above also offer harm-reduction tools to all bettors. 

• You can access a state-wide self-exclusion program to prohibit yourself from playing for a specific time.
• Many sportsbooks offer deposit limits and time-outs to help you control your gambling. 
• Some organizations, such as the Massachusetts National Council for Problem Gambling and the Massachusetts Council on Gaming and Health, support problem gamblers and their families.