Massachusetts Online Sportsbooks

Yes, though only within the boundaries Massachusetts drew for itself. The Commonwealth did not simply switch betting on; it stood up a tightly supervised marketplace under An Act Regulating Sports Wagering, the measure former Governor Charlie Baker signed on Aug. 10, 2022. What sets the Massachusetts version apart is how much the statute keeps in the state’s hands: only an operator holding a Massachusetts Gaming Commission license may take a wager, only someone who is 21-plus and physically on Bay State ground may place one, and only the contests the Commission has cleared may appear on the board. Legal here means legal on the Commonwealth’s terms, not a blanket green light.

Being physically inside Massachusetts matters more than residency. Residency is not required to bet legally, but you do need to be standing within the Commonwealth when you place a wager. Every licensed app runs geolocation checks that confirm your position before accepting action. Cross into Rhode Island, New Hampshire, or Connecticut and your Massachusetts app will refuse the bet — each of those states runs its own separate market.

The legal framework is narrow in an important way. Sportsbooks may only offer the events and bet types the Commission has approved through its sports wagering catalog. If a market is not on the approved list, no licensed operator can post it, no matter how much demand exists. That is why you will not find betting on certain amateur or in-state college contests, and it is why a high-profile attempt to take bets on the Boston Marathon went nowhere, as explained further down this page.

All seven books below clear the same bar — an active Massachusetts Gaming Commission license and a live product taking real bets. From there, we rank on price and market depth, app reliability, honest promotions, banking speed, and responsible-play tools, weighted toward what actually drives day-to-day value for a bettor in this state.

What about bet365, BetRivers, and ESPN BET?

Bettors sometimes ask about brands that operate elsewhere. As of July 2026, bet365 and BetRivers are not licensed to take online bets in Massachusetts, so any offer claiming to sign you up in the Commonwealth under those names should be treated with caution. ESPN BET no longer exists as a brand anywhere — it became theScore Bet in the December 2025 rebrand described above. Stick to the seven licensed apps, and check the Commission’s own licensee list if you are ever unsure whether an operator is legitimate here.

Rankings on this page are not popularity contests. Every operator listed clears the same bar: an active Massachusetts Gaming Commission license and a live product taking real bets. From there, we weigh a handful of factors that shape day-to-day value for a bettor in this state.

• Price and market depth. Consistently fair juice on Patriots, Celtics, Bruins, and Red Sox lines matters more over a season than any one-time bonus. We look at how each book prices sides, totals, and player props on the teams Bay State bettors actually follow.
• App reliability under load. A sportsbook that stalls during a Sunday afternoon NFL slate or a Celtics playoff run is failing at the moment it matters most. Stability and refresh speed on live markets carry real weight.
• Honest promotions. We favor welcome offers and reloads whose terms are clearly stated over inflated headline numbers buried under heavy rollover.
• Banking speed. How fast a book pays out, and through which methods, separates a good experience from a frustrating one.
• Responsible-play tools. Deposit limits, time-outs, and easy access to the state’s GameSense program are baseline requirements, not extras.

There is no single best app for every Massachusetts bettor, and the smart move is to hold accounts at two or three so you can shop for the best number on any given game. Line shopping is the most reliable edge a recreational bettor has, and it costs nothing beyond a few minutes.

Think about what you bet most. If you live in same-game parlays on Celtics and Patriots games, DraftKings and FanDuel offer the deepest builders. If loyalty rewards matter because you visit casinos, BetMGM and Caesars tie your betting to national programs. If you already spend on team merchandise, Fanatics turns wagers into store credit. Newer bettors often start with FanDuel for its simplicity, then add a second book once they are comfortable. Whatever you choose, confirm the app is on the Commission’s licensed list before depositing a dollar.

Registering takes only a few minutes, and the process is nearly identical across the seven apps. Here is the path from download to first bet.

1. Download the app or open the site. Get the app from the iOS App Store or the Android Play Store, or use the operator’s mobile website. Make sure you are pulling the real, licensed app and not a lookalike.
2. Create your account. Before any app can legally take a cent from you, it has to be sure you are a real adult of 21 or older, so it gathers a short set of identifying details: your date of birth, your legal name, the address where you live, an email, and part of your SSN. That last item is what lets the operator match you against public records and clear the identity and age checks Massachusetts law requires.
3. Confirm your identity. Most sign-ups clear instantly. If the system cannot match your details, you may be asked to upload a photo of your ID. This protects against fraud and underage betting.
4. Enable location services. The app needs permission to run geolocation. You must be physically inside Massachusetts for any bet to go through.
5. Make a first deposit. Load your balance with a debit card, an ACH bank transfer, PayPal, or one of the other accepted rails. Note that credit card deposits are prohibited for sports betting in Massachusetts — a deliberate consumer-protection rule.
6. Claim your welcome offer and bet. Opt into any sign-up promotion before your first wager, since bonuses usually cannot be applied retroactively. Then place your bet.

If you are close to the age cutoff, review our explainer on state-by-state gambling ages across different activities, because sports betting sits at 21 here even though some other forms of play carry lower thresholds elsewhere.

Every licensed Massachusetts book opens with a welcome offer, and they generally fall into two families. The first-bet-insurance model refunds your opening wager in bonus bets if it loses, up to a stated cap. The bet-and-get model pays a fixed pile of bonus bets once you place a qualifying first wager of a small amount, win or lose. Neither is automatically better; the right one depends on how large a first bet you are comfortable placing.

What matters most is the fine print. Bonus bets are not cash — when you win with one, you keep the profit but not the stake amount. Check the expiration window, since many bonus bets vanish in seven to 14 days. Watch for minimum-odds requirements that force you into longer prices than you would otherwise choose. And read whether the offer arrives in one lump or in installments across several days.

Beyond the welcome, the real long-term value comes from recurring promotions: odds boosts, parlay insurance, profit boosts tied to specific games, and loyalty programs. Boston sports weekends — a Patriots home game, a Celtics playoff series, a Red Sox-Yankees weekend — tend to trigger the most aggressive promos. Our running roundup of sportsbook bonuses compares current offers so you can time your sign-ups.

Getting money onto a Bay State betting account rarely takes long, and you will meet roughly the same cashier screen from one book to the next. Debit cards and online bank transfers (ACH) do most of the heavy lifting, but the apps also take PayPal, the operator’s own Play+ prepaid card, and PayNearMe, which lets you hand cash to a clerk at a participating store and watch it land in your balance; Apple Pay and Venmo surface at some books too. One prohibition trumps all of it: credit cards are off the table, because Massachusetts will not let anyone wager on borrowed money.

Most deposits post instantly, so your funds are ready as soon as the transaction clears. Withdrawals vary more. PayPal and Play+ cashouts are usually the fastest, often landing within hours to a day. Bank transfers typically take one to three business days. A first withdrawal from any book may take a little longer while the operator completes identity verification, and you will generally need to withdraw back to a method you have used to deposit. If you plan to move larger sums, factor in that verification step rather than expecting instant delivery. For a broader look at funding a legal account, our guide to real-money wagering walks through how it works.

If you bet in-game at all, app reliability is the feature that matters most, since a laggy interface can cost you a number before you tap confirm. Curious how these Massachusetts apps measure up against the strongest products elsewhere? Our guide to mobile sportsbook apps breaks down speed, feature depth, and interface quality across the national field.

Every licensed Massachusetts app supports live betting, the format where prices are reset pitch by pitch and possession by possession while play continues. You can back the Celtics to win after they fall behind at halftime, bet the next drive of a Patriots game, or take a live total on a Red Sox game that has turned into a pitchers’ duel. The markets refresh in real time, and lines move fast, so execution speed is everything.

The best live experiences in the state come from DraftKings and FanDuel, whose interfaces refresh quickly and offer the widest range of in-play markets, including live same-game parlays. When you place a live bet, there is usually a brief acceptance delay while the book confirms the current price, and occasionally your bet will be rejected if the line moved during that window. That is normal. The practical tip is to pick your spot before the moment arrives rather than chasing a number after a big play, because the price you want will often be gone by the time the app catches up.

Massachusetts spent years debating sports betting before it finally acted. Here is how the market came together.

The controlling statute is An Act Regulating Sports Wagering, enacted as Chapter 173 of the Acts of 2022 and originating as House Bill 5164. It is codified in the General Laws at Chapter 23N, and the operational rules live in the Commission’s regulations at 205 CMR, including the uniform standards of sports wagering at 205 CMR 247.

Massachusetts writes more limits into its market than many states, and understanding them prevents confusion when a market you expect is missing.

In-state college teams. Sportsbooks cannot accept wagers on games involving Massachusetts colleges and universities — Boston College, Harvard, the University of Massachusetts, Northeastern, and the rest — with one carve-out. When one of those teams reaches a tournament, such as the NCAA Tournament or a comparable postseason event, betting on that team’s tournament games is permitted. So you cannot bet a regular-season Boston College football game, but you could bet the UMass basketball team’s games if it made the Big Dance.

College player props. The law goes further on individual performances. Sportsbooks may not accept any wager tied to the performance of an individual athlete in a collegiate sport — no passing-yards props, no points props, no player-specific markets — regardless of which school is involved. This one applies to all college sports, not just Massachusetts teams, and it is stricter than what many neighboring states impose.

Approved events only. Beyond these headline rules, remember that the entire market runs on the Commission’s approved catalog. Esports betting is authorized, for instance, but only on events the Commission has cleared. If a book does not offer a market, the reason is often that it is simply not on the approved list.

Aside from the age-21 floor, Massachusetts shuts several groups out of the betting window to keep competition honest and the marketplace clean. The restricted list includes:

• Athletes, coaches, trainers, officials, and referees, who may not bet on their own sport.
• Employees of sports governing bodies and players’ associations with access to non-public information.
• Anyone with the ability to affect the outcome of a sporting event.
• Employees, officers, and certain contractors of the licensed sportsbooks themselves, along with their operators.
• Members and staff of the Massachusetts Gaming Commission and others with regulatory authority over wagering.
• Anyone who has signed onto the Commonwealth’s voluntary self-exclusion list.

These rules mirror the integrity provisions common across regulated states, and violations can carry both account closure and legal consequences.

Because online betting is legal only within state lines, every licensed app runs geolocation technology that verifies your physical position before it accepts a wager. The system typically combines GPS, Wi-Fi, and cellular signals to pinpoint your location and confirm you are inside Massachusetts. On a phone this runs through the app’s location permission; on a laptop it usually requires a small geolocation plug-in.

None of this stores or shares more than the app needs to confirm you are legally allowed to bet where you are.

There are two separate tax questions: what operators owe the state, and what bettors owe on winnings.

On the operator side, the Commonwealth runs a split excise tax tied to adjusted gross sports wagering receipts — that is, revenue left after winning bets are paid out. Online and mobile books hand over 20% of that figure, while the three retail casinos pay 15%. Because phones account for the overwhelming share of play, the 20% online rate supplies the bulk of what the state collects, and combined taxes and assessments have passed $477 million since betting began in early 2023. Chapter 23N is specific about where the money lands: 45% flows to the state’s General Fund, 27.5% to the Gaming Local Aid Fund that cities and towns tap for general aid, 17.5% to the Workforce Investment Trust Fund, 9% to the Public Health Trust Fund that bankrolls gambling prevention, treatment, and recovery research, and the final 1% to the Youth Development and Achievement Fund.

On the bettor side, whatever you win is taxable income to both the IRS and the Massachusetts Department of Revenue. Federally, a sportsbook issues a Form W-2G on certain sizable payouts, and the IRS expects net gambling income to be reported regardless. The state, for its part, folds those winnings into income taxed at its flat 5% rate. Keep your own ledger of wins and losses, since Massachusetts limits loss deductions and does not track the federal approach. A profitable year is a solid reason to bring in a tax professional. Read this as an explanation of how the rules operate, not as tax advice.

The Bay State market has grown into one of the largest in the country by handle. After launching mobile betting in March 2023, monthly wagering volume climbed steadily and then accelerated. Through the first nine months of 2025, sportsbooks handled roughly $5.9 billion in bets, producing more than $600 million in gross operator revenue and over $110 million in state tax collections.

The back half of 2025 set records. September became the first month to clear $800 million in handle, October topped $890 million, and November pushed past $914 million as football season peaked. December stayed near the billion-dollar mark. Those figures put Massachusetts among the busiest betting states despite its modest population, a reflection of a passionate sports culture and the concentration of engaged bettors around greater Boston. Compare Massachusetts against every other market through our state gambling guides.

No state has hit the sports prediction-market business harder than Massachusetts. Platforms such as Kalshi, Polymarket, and Robinhood let users trade “event contracts” that pay out on real-world results, and once Kalshi extended those contracts to game outcomes, the Commonwealth’s regulators concluded that a bet on the Patriots dressed up as a swap is still a bet. Their objection is not abstract: the contracts reach residents as young as 18, three years under the state’s 21-and-up betting floor, and they run entirely outside the Massachusetts Gaming Commission’s licensing and consumer-protection system.

The dispute moved quickly from rhetoric to court. On Sept. 15, 2025, Attorney General Andrea Joy Campbell filed suit against KalshiEX in Suffolk Superior Court, alleging it was running unlicensed sports wagering behind an event-contract label; her complaint pegged Kalshi’s sports-related trading from Massachusetts users at more than $1 billion in the first half of 2025 alone. Kalshi tried to move the case to federal court the next day, but a judge sent it back to the state system. Then, on Jan. 21, 2026, Judge Christopher Barry-Smith granted Massachusetts a preliminary injunction ordering Kalshi to stop offering sports contracts to state residents. He denied the company’s motion to dismiss, rejected its central claim that the federal Commodity Exchange Act preempts state gambling law, and found a strong likelihood the state will win outright — the first injunction any state has landed against Kalshi. With sports accounting for the lion’s share of its volume, Kalshi signaled it would appeal, so the fight is not finished.

For a Massachusetts bettor, the takeaway is concrete: sports event contracts are now under a court order here and have never carried the Gaming Commission oversight that the seven licensed sportsbooks do. If you want a regulated venue with the state’s protections behind it, use a licensed app. For a wider look at how these exchanges operate nationally, see our overview of prediction markets. And if the broader question of what you can legally play online is on your mind, our rundown of where online gambling stands nationwide lays out how the rules shift from one state to the next.

Few states pack as much championship history into as small a footprint as Massachusetts. Greater Boston fields a team in every major league, and those teams drive the bulk of local betting volume.

College betting is where Massachusetts law is most restrictive, so it is worth being precise. You cannot bet on games involving in-state schools during the regular season, and you cannot bet individual player props on any college athlete anywhere. The one opening is that when a Massachusetts team reaches a tournament, wagers on that team’s tournament games become legal.

The schools that fall under the in-state restriction include Boston College, the state’s lone major-conference program and a member of the Atlantic Coast Conference; Harvard, an Ivy League institution with a strong basketball and hockey tradition; the University of Massachusetts, whose basketball program has NCAA Tournament history; and Northeastern, a Colonial Athletic Association power known especially for hockey. During March, if any of these programs earn a tournament berth, the tournament games open up for betting under the carve-out. Outside that window, Massachusetts bettors who want college action stick to out-of-state programs and game-level markets rather than player props.

Massachusetts hosts and follows a distinctive slate of marquee events, though the rules shape what you can actually wager.

• The Super Bowl and NFL playoffs. Whether or not the Patriots are involved, the Super Bowl is the single biggest betting day of the year in the state, with props, futures, and game markets drawing casual and serious bettors alike.
• NBA and NHL playoffs. Celtics and Bruins postseason runs generate enormous local volume, series by series, from the first round through the finals.
• The Red Sox season and playoffs. The daily grind of baseball produces the most cumulative handle of any sport over a full year, and any October run multiplies it.
• March Madness. The NCAA Tournament was the reason mobile betting launched when it did, and it remains one of the busiest windows on the calendar — including the narrow chance to bet an in-state team that reaches the field.
• The Boston Marathon. One of the world’s premier road races is held in the state every April, but as noted above, the Commission has kept it off the betting board. It is a major event you cannot legally wager on in Massachusetts.

Online betting dominates, but the state also has in-person options for bettors who prefer a counter and a ticket. Three retail sportsbooks anchor the market: Encore Boston Harbor in Everett, MGM Springfield in the western part of the state, and Plainridge Park Casino in Plainville. Each opened its betting windows on Jan. 31, 2023, weeks ahead of the mobile launch. These venues offer the full big-screen, walk-up experience and often tie into the same rewards programs as their affiliated apps. If you also enjoy casino gaming, our guide to Massachusetts online casinos covers where that market stands.

• The Massachusetts Problem Gambling Helpline is the state’s front door, reachable around the clock at 1-800-327-5050. The line is staffed by trained specialists, offered in multiple languages, and free to call, with referrals to treatment and support close to home.
• GameSense is the Commonwealth’s official responsible-gaming brand, run with the Gaming Commission. Its advisors staff GameSense Info Centers inside the state’s casinos, where they explain the real odds, debunk common gambling myths, and point players toward help without judgment.
• PlayMyWay is a free budget-tracking tool at Encore Boston Harbor, MGM Springfield, and Plainridge Park that lets you set a daily, weekly, or monthly spending limit and pings you as you cross the 50%, 75%, and 100% marks.
• Voluntary Self-Exclusion is a statewide program that bars you from casino floors, sports wagering, and the iLottery for a term you choose — one year, five years, or life — with optional recovery coaching by phone once you enroll.
• The national helpline, 1-800-522-4700, backs all of this up with confidential support and referrals whenever you need them.

Every licensed app also bakes in controls for capping deposits, sizing individual wagers, limiting time on the app, and triggering short cool-off breaks. Reach for them early, before a habit hardens into a problem.

Massachusetts built a market that rewards bettors who play inside the licensed system. Seven strong apps compete for your business, the regulator takes consumer protection seriously, and the volume figures show a state that has fully embraced legal wagering. Know the college rules, remember that credit cards and Boston Marathon bets are off the table, keep two or three apps for line shopping, and use the state’s GameSense tools to stay in control. Neighboring markets run on their own rules — if you travel, check our pages on Connecticut, Rhode Island, and New York before betting across a border.