Is Polymarket US legal in Massachusetts?

What Massachusetts has done about Polymarket US

1. March 5, 2026

   Court order

   Judge William G. Young approved a joint request to pause Polymarket's federal case until the state appellate courts review the Kalshi injunction.

   Source: Bloomberg Law

2. Feb. 9, 2026

   Operator lawsuit

   Polymarket sued in federal court to stop the attorney general from enforcing state sports-wagering licensing law against it.

   Source: Prediction Market Litigation Tracker (mickbransfield.com)

All 12 actions in Massachusetts

Court cases

• QCX LLC v. CampbellU.S. District Court for the District of Massachusetts, 1:26-cv-10651Pending

The legal backdrop in Massachusetts

State status

In litigationThe state and a prediction market operator are actively in court, and no order blocking the operator is in force.

Online sports betting

Legal onlineRetail and mobile sports betting; mobile launched March 10, 2023.

Federal appeals court

First CircuitAppeal pending.

Who regulates

Massachusetts Gaming Commission; Massachusetts Attorney General

Laws and bills

None specific to prediction markets

Using Polymarket US in Massachusetts

Minimum age

18

Identity checks

Polymarket US requires date of birth, a phone number confirmed by text code, legal name, residential address and Social Security number. Most users are verified automatically; others may be asked for a government-issued ID and a selfie check. KYC must be completed before depositing or trading, and the terms require KYC, AML and sanctions screening. Source

Other platforms in Massachusetts

• KalshiNo restriction found
• Polymarket USNo restriction found
• Gemini PredictionsNo restriction found
• RobinhoodNo restriction found
• Crypto.comNo restriction found
• CoinbaseNo restriction found
• WebullNo restriction found
• DraftKings PredictionsSports blocked
• FanDuel PredictsSports blocked
• UnderdogOffered
• PrizePicksSports blocked
• Fanatics MarketsNot offered

Questions people ask

Is Polymarket US legal in Massachusetts?

Polymarket US does not publish a list of states where it is unavailable, and we found no court order, regulator action or Polymarket US notice that stops it from serving Massachusetts as of Oct. 22, 2026. Massachusetts has 2 public actions on record that name Polymarket US. The latest (court order, March 5, 2026): Judge William G. Young approved a joint request to pause Polymarket's federal case until the state appellate courts review the Kalshi injunction. This summarises public actions; it is not legal advice.

Has Massachusetts sued Polymarket US or ordered it to stop?

Yes. March 5, 2026: Judge William G. Young approved a joint request to pause Polymarket's federal case until the state appellate courts review the Kalshi injunction.

How old do you have to be to use Polymarket US in Massachusetts?

18. That is Polymarket US's minimum age, and it lists no different rule for Massachusetts.

Is sports betting legal in Massachusetts?

Legal online. Retail and mobile sports betting; mobile launched March 10, 2023.

Which court will decide whether Massachusetts can regulate Polymarket US?

Federal appeals from Massachusetts go to the First Circuit, where an appeal on the question is pending. 3 petitions now ask the U.S. Supreme Court to settle the question nationally.

Sources

1. Polymarket App Terms & Conditions (ISV Front End), effective October 22, 2026 (embedded at polymarket.us/tos)
2. Bloomberg Law
3. Prediction Market Litigation Tracker (mickbransfield.com)
4. Massachusetts sports betting status