Vardan Khachatryan
Polymarket in Massachusetts
Contested for sports contracts, with no restriction in force.
- Sports contracts
- Available, but contested
- Other contracts
- Available
- Regulator
- CFTC: offers US trading through Polymarket US (QCX LLC), a CFTC-designated contract market it acquired in 2025
- Rulings and actions in Massachusetts
- 1 on record, listed in the timeline
- Legal sports betting
- In person since January 31, 2023; online since March 10, 2023
- Polymarket's federal case
- QCX LLC v. Campbell, paused since March 5, 2026
- Federal appeals court
- First Circuit: has not ruled on the question
- Last change
- May 4, 2026
Each entry on this page links the ruling or report it rests on. Nothing here is legal advice.
Open Polymarket USWhy Polymarket is legal in Massachusetts, for now
In the US, Polymarket means Polymarket US. Its orders go to QCX LLC, which the CFTC designated as an exchange on July 9, 2025.
Massachusetts has never ordered Polymarket to stop, and it has not sued it.
Polymarket moved first. On February 9, 2026, it sued the attorney general and the Gaming Commission in federal court in Boston.
It wanted to stop the state treating its sports contracts as unlicensed betting, as the state had done with Kalshi.
Three weeks later, both sides agreed to wait. The state will hold off until after the Supreme Judicial Court rules on Kalshi.
What you can trade on Polymarket from Massachusetts
Polymarket US lists sports, politics, economics, crypto, culture and weather. You sign in with Google or Apple and verify your identity.
Sports is where the risk sits. Polymarket told the court that abruptly cutting off Massachusetts users and unwinding their positions would do real damage.
Politics trades here too. Governor Maura Healey faces Republican Michael Minogue on November 3, 2026. See the live Massachusetts governor odds.
The Senate race is on the ballot as well. Ed Markey beat Seth Moulton in the September 1 primary and faces Republican John Deaton.
College games are touchier. Massachusetts sportsbooks cannot take bets on in-state college teams outside tournaments.
How Polymarket works for Massachusetts traders
Every Polymarket US contract is a yes-or-no question. It pays $1 if the answer is yes and nothing if it is no.
The price is the market's odds. A contract at 60¢ means traders put the chance at about 60%.
Say the Bruins are 60¢ to win tonight. You buy 100 contracts for $60. The taker fee is $1.67.
That is 0.0695 × 100 × 0.60 × 0.40, rounded to the nearest cent.
If the Bruins win, you collect $100, a $38.33 profit. If they lose, you are out $61.67.
Orders that rest on the book pay no fee. From October 6, 2026, only makers trading $10 million or more a month earn a rebate.
You trade against other people, not the house. Our Polymarket fees guide has every rate.
What Massachusetts has said about Polymarket
Almost nothing, directly. We found no order, letter or lawsuit from Massachusetts aimed at Polymarket.
Its view comes through the Kalshi case. The attorney general says sports event contracts are sports wagering, which needs a Gaming Commission license.
The Gaming Commission agrees. In November 2025 it told licensed sportsbooks they may not offer sports event contracts in Massachusetts.
Chair Jordan Maynard has been blunt. A prediction market “looks regulated at the same level as the states, and it's not,” he said.
The state did make Polymarket one promise, in writing. Here is how that happened.
Polymarket's lawsuit against Massachusetts, explained
The case is QCX LLC v. Campbell, No. 1:26-cv-10651, before Judge William G. Young in Boston.
Polymarket sued Attorney General Andrea Joy Campbell, five gaming commissioners and the commission's executive director.
Its claim is the one Kalshi makes. Polymarket US is a CFTC-regulated exchange, so it says federal law preempts state gaming law.
The case never reached a ruling. On March 4, both sides signed a deal, and the judge closed the case the next day.
Under the deal, the state will not bring civil or criminal action over Polymarket's sports contracts for now.
That promise lasts until at least 14 days after the pause ends. The pause ends when the SJC rules on Kalshi's injunction.
The gaming commissioners were dropped from the case. The deal says the commission cannot sue Polymarket without the attorney general's approval.
So Polymarket's future here rides on Kalshi's appeal. Our page on whether Kalshi is legal in Massachusetts covers it in full.
What could change Polymarket's status in Massachusetts
The SJC ruling is the trigger. The state's promise to hold off expires at least 14 days after the court rules on Kalshi.
If the SJC sides with the state, Polymarket's sports contracts face the same legal test. Polymarket can then ask Judge Young to reopen its case.
If the SJC sides with Kalshi, the state's main argument against Polymarket falls with it.
Federal courts matter too. The First Circuit has not ruled, and the Ninth and Sixth Circuits have gone against Kalshi.
New Jersey has asked the Supreme Court to decide. Our litigation tracker follows each case.
Polymarket in Massachusetts: timeline
Every change to Polymarket's position in Massachusetts, newest first. Each entry links the filing or order behind it.
How Polymarket compares to sports betting in Massachusetts
Massachusetts runs a licensed, taxed sports betting market. It opened in person on January 31, 2023, and online on March 10, 2023.
Seven online sportsbooks are live. They pay 20% of their revenue in tax, and in-person books pay 15%.
Bettors must be 21. Sportsbooks may not take bets on in-state college teams outside tournaments, or on college players' stats.
Polymarket US has no state license. The CFTC regulates its exchange, and it says it never takes the other side of a trade.
That is the whole dispute in one line. The state sees a sportsbook without a license; Polymarket sees a federal exchange.
Other prediction market apps in Massachusetts
The sportsbook brands keep sports out of their prediction apps here, after the Gaming Commission's November 2025 letter.
Kalshi's sports contracts are under a stayed injunction but still live. Novig and Underdog sued the state this summer, as Polymarket did.
Here is where each app we rank stands in the state. See Robinhood in Massachusetts and prediction markets in Massachusetts for the full picture.
| App | Status in Massachusetts | More |
|---|---|---|
| Kalshi | Contested for sports contracts, with no restriction in force | Is Kalshi legal in Massachusetts? |
| Gemini Predictions | Available, sports included | Gemini Predictions review |
| OG | Available, but not for sports contracts | OG review |
| Interactive Brokers | Available; it lists no sports contracts anywhere | Interactive Brokers review |
| Robinhood | Contested for sports contracts, with no restriction in force | Is Robinhood legal in Massachusetts? |
| ProphetX | Available, sports included | ProphetX review |
| Coinbase | Available, sports included | Coinbase review |
| Webull | Available, sports included | Webull review |
| Novig | Available, sports included | Novig review |
| DraftKings Predictions | Available, but not for sports contracts | DraftKings Predictions review |
| Fanatics Markets | Not available | Fanatics Markets review |
| FanDuel Predicts | Available, but not for sports contracts | FanDuel Predicts review |
| PrizePicks | Available, but not for sports contracts | PrizePicks review |
| Underdog Predict | Available, sports included | Underdog Predict review |
How to use Polymarket in Massachusetts
Download the Polymarket US app or go to polymarket.us. Sign in with Google or Apple, then enter your name, date of birth and address.
Most identity checks clear at once. A manual review can take 3 to 5 business days.
Fund the account by debit card, bank transfer or wire. Wires have a $1,000 minimum.
Withdrawals go back to the card or bank you funded from, oldest deposit first.
Read our Polymarket review first. It covers fees, payouts and the lawsuits in other states. Comparing apps? See Kalshi vs Polymarket.