Is Kalshi legal in Massachusetts? It’s contested. Massachusetts won an injunction against Kalshi’s sports contracts in early 2026, but it was paused on appeal, and the state’s highest court heard the case in May 2026. This guide sets out where things stand, as of October 28, 2026.
At a glance
| Platform | Massachusetts status (Oct 2026) |
|---|---|
| Kalshi | Status depends on the pending appeal; check the app |
| Novig | Suing Massachusetts in federal court |
| Sportsbooks | Legal and licensed |
What’s happened in Massachusetts
- On January 20, 2026 a Superior Court judge granted the attorney general a preliminary injunction against Kalshi’s sports contracts.
- The Appeals Court stayed that injunction pending appeal in February 2026.
- The Supreme Judicial Court heard argument in May 2026 and hadn’t ruled when we checked. The CFTC filed a brief supporting federal jurisdiction.
Sources, checked October 28, 2026:
- Covers: judge grants Massachusetts a preliminary injunction against Kalshi (Jan 20, 2026)
- Law360: Kalshi wins stay of Massachusetts injunction (Feb 17, 2026)
- Insurance Journal (Bloomberg): SJC hears Kalshi case (May 5, 2026)
- CFTC press release 9281-26: emergency action (Aug 11, 2026)
- Casino.org: Novig’s launch and its suits against five states (updated Oct 16, 2026)
Why it matters
A ruling from Massachusetts’s highest court would be a major test of how far state gambling law reaches sports event contracts. The national picture, including the split between federal appeals courts and New Jersey’s Supreme Court petition, is in Is Kalshi legal?
FAQ
Is Kalshi legal in Massachusetts?
Contested: the state’s highest court is deciding. Check the Kalshi app for what’s available where you are.
Is Polymarket legal in Massachusetts?
Polymarket’s main exchange isn’t open to US residents. Check the Polymarket US app for what it offers in Massachusetts.
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