Massachusetts Sports Betting
Sports betting is legal in Massachusetts. Retail sportsbooks opened on January 31, 2023, and online sportsbooks followed on March 10, 2023, under the Massachusetts Gaming Commission. You must be 21 and physically in Massachusetts to place a bet. Online casinos are not legal. This guide lists every sportsbook and prediction market available in Massachusetts, what each sign-up offer is worth when hedged, and the order to claim them.
Massachusetts Sportsbooks and Prediction Markets
Every sportsbook, prediction market and sweepstakes book that accepts players here, with how each is regulated and whether it limits winning bettors.
Bally Bet
ProphetX
BroThrow
FanDuel
Fliff
CaesarsCaesars
DraftKingsDraftKings
BetMGM
Fanatics
The Score
NoVigNoVig
Polymarket USStatuses come from our sportsbook records and the regulator's list. Check the regulator before depositing if anything has changed.
Massachusetts Sportsbook Promos
Listed in the order to claim them. The order changes with your starting bankroll.
Approximate value is what each offer converts to when you bet both sides, at the odds available when we checked. Actual returns depend on offer availability, market conditions, and individual execution.
Notes: Distributed as three $50 Bonus Bets.
Notes: bet105 is an offshore crypto only sportsbook.
Notes: Signup with promo code "DHO".
Notes: If your first bet on BroThrow loses they will reimburse you up to $10.
OzoonNotes: 5x Rollover requirement. Any wagers using deposited funds or bonus funds prior to bonus completion are subject to a max of 50% of deposited amount.
Sportsbetting.agNotes: Verify the promo code for the 50% deposit match is applied before making your first deposit.
Sportsbetting.ag has restrictions on using Free Bets that reduces their value to ~50%. Learn more in our Sportsbetting.ag review.
- Football, Basketball, Soccer & Tennis Free Bets can only be used on spreads and totals to max odds of +150.
- Baseball and Hockey Free Bets can only be used on Moneylines and Totals to max odds of +150.
- Baseball and Hockey Free Bets are restricted to a maximum wager of $500 per event.
- MMA Free Bets can only be used on Moneylines to max odds of -200 for the favorite and +150 for the underdog.
FanDuelNotes: None.
BetOnlineNotes: Verify the promo code for the 50% deposit match is applied before making your first deposit.
BetOnline has restrictions on using Free Bets that reduces their value to ~50%. Learn more in our BetOnline review.
- Football, Basketball, Soccer & Tennis Free Bets can only be used on spreads and totals to max odds of +150.
- Baseball and Hockey Free Bets can only be used on Moneylines and Totals to max odds of +150.
- Baseball and Hockey Free Bets are restricted to a maximum wager of $500 per event.
- MMA Free Bets can only be used on Moneylines to max odds of -200 for the favorite and +150 for the underdog.
Fliff
BetUSNotes: 125% Sign-Up Bonus up to $2,000 on your first, second and third deposits.
- Minimum deposit: $100
- 100% Sports Bonus – up to $2,500
- 14X Rollover on Sports
- 25% Casino Bonus – up to $625
- 30X Rollover on Casino Games for Release and Cash out.
- Max cash out for Casino Bonus is $2,500
- 7-Days Expiry
CaesarsNotes: Ten 100% profit boosts with a max bet of $25.
CaesarsNotes: None.
DraftKingsNotes: DK calls Site Credit DK Dollars. They are a 1x playthrough, but the initial deposit match is released at 25x. Meaning, for every $25 bet $1 of Site Credit is added to your account and automatically applied to your next bet. Minimum odds -300 and 90 days to meet the playthrough requirement. Be sure to use the sportsbook app/webpage. It is easy to accidentally use the casino or daily fantasy app/webpage. When making your first deposit, edit the deposit amount to $5,000 before linking the deposit method. This offer can be used to hedge other signup offers.
Lucky RebelNotes: 10x Rollover requirement. Any wagers using deposited funds or bonus funds prior to bonus completion are subject to a max of 50% of deposited amount.
Notes: None
BetMGMNotes: None
BovadaNotes: The 75% match on a $1,000 deposit is available when using crypto to deposit, and a promo code is required. The rollover is 5x on sports.
FanaticsNotes: None.
MyBookieNotes: 10x rollover requirement on the deposit and bonus results in a total wager requirement of $30,000.
The ScoreNotes: Refunded as five Bonus Bets.
NoVigNotes: Use Promo Code "DHO100" for 100% off your first purchase up to $100 off. Can only choose one of the two NoVig Offers.
NoVigNotes: Use Promo Code "DHO" for 50% off your first purchase of $25. Can only choose one of NoVig's two offers.
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Notes: Polymarket.com is a prediction market, not a traditional sportsbook.
Notes: Polymarket US is a CFTC regulated prediction market, not a traditional sportsbook.
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Prediction Markets in Massachusetts
Status: contested. Last verified October 2, 2026.
Prediction markets such as Kalshi and Polymarket US are regulated federally by the Commodity Futures Trading Commission. Massachusetts treats sports event contracts as unlicensed sports wagering. In September 2025, Attorney General Andrea Joy Campbell sued Kalshi in Suffolk Superior Court, and on January 20, 2026, the court granted a preliminary injunction barring Kalshi from offering sports contracts in the state without a license. Attorney General announcement
The injunction has not taken effect. In February 2026, a Massachusetts Appeals Court justice stayed it while Kalshi appeals. The Supreme Judicial Court took the case and heard arguments on May 4, 2026, and it had not ruled as of October 2, 2026. Polymarket US and Robinhood have filed their own federal lawsuits against the state, and the Polymarket case is paused until the Kalshi appeal is decided. Bloomberg Law report
Elsewhere, the Sixth and Ninth Circuits have ruled for states, while the Third Circuit sided with Kalshi in New Jersey, so the Supreme Court may settle the question.
Prediction markets matter for matched betting because they do not limit winning traders. Check each app for current availability in Massachusetts before you deposit.
This section is for informational and educational purposes only. It does not constitute legal advice.
Online Casinos in Massachusetts
Online casinos are not legal in Massachusetts. The state's two resort casinos and one slots parlor offer gaming in person only.
Sweepstakes casinos operate in Massachusetts under sweepstakes rules rather than a state license, so they offer fewer customer protections. Some of their sign-up offers are +EV. The Sweepstakes Casino Overview explains how they work.
A 2025 House bill, H.4431, would have legalized online casinos and prohibited unlicensed sweepstakes. On March 23, 2026, it was sent to a study order, which ends its chances this session. No online casino bill had passed as of October 2, 2026.
Massachusetts Sports Betting Law and Timeline
- August 10, 2022: Governor Charlie Baker signed House Bill 5164, An Act regulating sports wagering, which became Chapter 173 of the Acts of 2022. Massachusetts Legislature bill page
- January 31, 2023: Retail sports betting began at the state's casinos, regulated by the Massachusetts Gaming Commission. Commission FAQ
- March 10, 2023: Online and mobile sports betting launched with six operators. Online sportsbooks pay a 20% tax on revenue and retail sportsbooks pay 15%. Current licence holders are listed on the Commission's sports wagering licensees page. Commission revenue release
- October 3, 2024: The Attorney General's Office ordered the offshore operator Bovada to stop offering casino games and sports betting in Massachusetts. Attorney General announcement
- June 25, 2025: The Attorney General's Office sent cease-and-desist letters to the offshore sites BetOnline.ag and Sportsbetting.ag. Attorney General announcement
- September 12, 2025: Attorney General Andrea Joy Campbell sued Kalshi in Suffolk Superior Court, alleging it runs unlicensed sports wagering. Attorney General announcement
- January 20, 2026: The Superior Court granted a preliminary injunction barring Kalshi from offering sports event contracts in Massachusetts without a state license. Attorney General announcement
- February 2026: A Massachusetts Appeals Court justice stayed the injunction while Kalshi appeals, so Kalshi kept operating. Bloomberg Law report
- May 4, 2026: The Supreme Judicial Court heard arguments in the Kalshi appeal (SJC-13906). No decision had been issued as of October 2, 2026. InGame report
Offshore and unlicensed betting
Massachusetts law makes running an unlicensed sportsbook a crime. G.L. c. 23N, section 5 bars anyone from engaging in sports wagering activity without the required licenses. Under G.L. c. 23N, section 21, anyone other than a licensed operator who "engages in accepting, facilitating or operating a sports wagering operation" faces up to 90 days in jail or a $10,000 fine for a first offense, rising to 1 to 9 years in state prison for a third. The Gaming Commission can also fine any person up to $2,000 per violation. G.L. c. 271, section 17A, rewritten by the 2022 sports wagering law, makes it a crime, except as permitted under chapter 23N, to use a telephone, the internet or other communications technology to accept bets, or to place "all or any portion of a wager with another," on an athletic game. The penalty is a fine of up to $2,000 or up to 1 year in jail.
The Attorney General's Office has acted against named offshore books. It sent a cease-and-desist letter to Bovada on October 3, 2024, and to BetOnline.ag and Sportsbetting.ag on June 25, 2025, ordering each to stop serving Massachusetts and refund Massachusetts users.
This section is for informational and educational purposes only. It does not constitute legal advice. Availability of sportsbooks and promotions varies by state and may change. Verify current offerings before signing up.
Massachusetts Sports Betting FAQ
Is sports betting legal in Massachusetts?
Yes. Retail sports betting has been legal since January 31, 2023, and online sports betting since March 10, 2023. The Massachusetts Gaming Commission licenses and regulates every sportsbook.
How old do you have to be to bet on sports in Massachusetts?
You must be 21 or older to place a sports bet in Massachusetts, online or in person.
Can you bet in Massachusetts if you live in another state?
Yes. State law requires every bet to be made within Massachusetts, so you need to be physically located in the state when you bet, not a resident. Sportsbook apps check your location before accepting a wager.
Is Kalshi legal in Massachusetts?
It is contested. A state court ruled on January 20, 2026, that Kalshi needs a Massachusetts license to offer sports contracts, but that order is on hold while the Supreme Judicial Court decides Kalshi's appeal. Check the Kalshi app for current availability in Massachusetts.
Is online gambling legal in Massachusetts?
Online sports betting is legal. Online casinos are not. Sweepstakes casinos operate in Massachusetts under sweepstakes rules rather than a state license.
Can you use a credit card at Massachusetts sportsbooks?
No. Massachusetts law bars sportsbooks from accepting credit cards. Use a debit card, bank transfer or another approved method.
Is it legal to use offshore sportsbooks in Massachusetts?
No. Only sportsbooks licensed by the Massachusetts Gaming Commission may take bets. Running an unlicensed sportsbook is a crime under G.L. c. 23N, section 21. G.L. c. 271, section 17A also makes it a crime, except as permitted under the sports wagering law, to use the internet to place all or any portion of a wager with another on an athletic game, with a fine of up to $2,000 or up to 1 year in jail. The Attorney General has ordered Bovada, BetOnline.ag and Sportsbetting.ag to stop serving Massachusetts.
Before You Start
Nearby State Guides
Sign-up offers only work where you are physically located. If you spend time across a state line, each state's guide lists what you can claim there.
