United States - Massachusetts: gambling regulation and licensing
State of Massachusetts
Part of United States
- Online sports bettingRegulated
- Online casinoProhibited
- Land-based (reference)Regulated
- Regulator
- Massachusetts Gaming Commission
- Headline tax
- 20% GGR
- Licence required
- Not yet verified
- Last verified
- 30 Aug 2026
Summary
Massachusetts licenses sports betting in three categories, and the category determines the tax. Categories 1 and 2 are the land-based casino and slots licensees, taxed at 15% of gross sports wagering revenue. Category 3 is online, taxed at 20%. Retail betting launched in January 2023 and online followed on 10 March that year. The Massachusetts Gaming Commission is a dedicated regulator rather than a lottery agency, and has been more visibly interventionist than most American state regulators on advertising and operator conduct, holding public adjudicatory hearings and pressing operators on marketing practices that other states have left to industry codes. For operators, that makes Massachusetts a compliance-heavy market relative to its size. Online casino is not authorised, and the distinction matters because a state licensing sports betting is often wrongly assumed to permit online casino as well. House Bill 4431 would have authorised and regulated it, and was sent to study by a legislative committee, which in practice defers the question to the 2027 session.
Key facts
- Regulator
- Massachusetts Gaming Commission (MGC)
- Regulator type
- Sub-national body
- Headline tax
- 20% GGR
- Licence required
- Not yet verified
- Minimum age
- Not yet verified
- Tax base
- Category 3 (online) licensees are taxed at 20% of gross sports wagering revenue. Category 1 and 2 (retail) licensees pay 15%.
- Capital
- Boston
- Currency
- USD
- Official languages
- English
Legal framework
Pending legislation
House Bill 4431 (iGaming authorisation)
- Stage
- sent to study
- What it changes
- Would have authorised and regulated online casino. Sent to study by committee, deferring any decision to the 2027 session.
Taxation
- Headline GGR tax
- 20% GGR
- Effective date
- Not yet verified
- Tax base
- Category 3 (online) licensees are taxed at 20% of gross sports wagering revenue. Category 1 and 2 (retail) licensees pay 15%.
Advertising
- Advertising permitted
- Yes
- Affiliate rules
- Affiliates are not separately licensed. The operator remains accountable for advertising published on its behalf, and only state-licensed operators may be promoted.
- Celebrity and influencer rules
- Advertising must not be directed at people below the legal minimum gambling age, which constrains the use of personalities and channels with an under-age following.
- Penalties for breach
- T supervises advertising as part of its licensing function and can take disciplinary action against the licence.he Massachusetts Gaming Commission
Restrictions
- Advertising is regulated by the Massachusetts Gaming Commission as a condition of licensure rather than under a separate advertising statute.
- Only operators licensed in the state may lawfully be promoted to its residents.
- Advertising must not be directed at people below the legal minimum gambling age.
- Operators must not direct marketing at self-excluded persons.
- Online casino is not authorised, so only sports betting may be promoted. This is the most common misreading of a US state record: a sports betting licence is not an iGaming licence.
- The Massachusetts Gaming Commission is a dedicated regulator rather than a lottery agency and has been more visibly interventionist than most states on advertising and operator conduct.
Outlook
The iGaming bill returning in 2027 is the thing to diary. Massachusetts is among the larger states without online casino, so its decision carries beyond its own borders.
Frequently asked questions
- Is online casino legal in Massachusetts?
- No. House Bill 4431 would have authorised it but was sent to study, deferring the question to the 2027 session.
- What is the online sports betting tax rate?
- 20% of gross sports wagering revenue for Category 3 online licensees. Retail Category 1 and 2 licensees pay 15%.
Sources
- Massachusetts Gaming Commission
Commonwealth of Massachusetts
Tier 1Accessed 22 Aug 2026 - Online sports betting launches in Massachusetts
CommonWealth Beacon
Tier 2Accessed 22 Aug 2026 - Tier 2Accessed 22 Aug 2026Published 17 Mar 2026