Home › Is Polymarket legal? › New York
Status as of September 25, 2026 · every line has its source and date · not legal advice
As of September 25, 2026: polymarket.com does not let US users open new positions, including in New York. Polymarket US, the CFTC-regulated app, is reported available in New York according to CBS Sports (September 24, 2026). 4 state actions involving Polymarket and 17 involving Kalshi are listed below with their sources. This is a dated summary of public sources, not legal advice.
| Service | New York |
|---|---|
| Polymarket US (CFTC-regulated app) | Reported available |
| polymarket.com (international site) | No new trades for US users |
| Kalshi (for comparison) | Available; sports contracts available |
Kalshi and Polymarket US are reported live in New York, including sports, but both face state lawsuits: the Attorney General sued Kalshi on 2026-07-31 (removed to federal court, remand motion pending) and Polymarket US on 2026-09-24; a federal judge denied Kalshi an injunction against the Gaming Commission on 2026-07-07 (Second Circuit appeal pending); the CFTC has sued New York and on 2026-08-11 ordered Kalshi to keep operating.
| Date | Company | Event and source |
|---|---|---|
| 2026-09-24 | Polymarket | Attorney General James and Governor Hochul sued QCX LLC d/b/a Polymarket US, alleging an illegal unlicensed gambling operation open to 18-20-year-olds and seeking an order stopping it plus fines, forfeiture and restitution. Attorney General James and Governor Hochul Announce Lawsuit Against Polymarket for Running Illegal Gambling Operation |
| 2026-09-24 | Polymarket | Polymarket US removed the state's case from New York County Supreme Court to federal court in Manhattan (S.D.N.Y. No. 1:26-cv-08338). People of the State of New York v. QCX LLC d/b/a Polymarket US, No. 1:26-cv-08338 (S.D.N.Y.), docket (CourtListener) |
| 2026-09-24 | Polymarket | Polymarket US filed its own federal lawsuit in Manhattan against Attorney General James and the Gaming Commission's officials. QCX LLC d/b/a Polymarket US v. James (S.D.N.Y.), complaint, docket entry 1 (CourtListener) |
| 2026-09-08 | Kalshi | The CFTC filed an amicus brief in Kalshi's Second Circuit appeal. KalshiEX LLC v. Williams, No. 26-1835 (2d Cir.), docket entry 51 (CourtListener) |
| 2026-09-03 | Kalshi | The Second Circuit ordered Kalshi's New York appeal to be heard in tandem with appeals Nos. 26-2297 and 26-2239. KalshiEX LLC v. Williams, No. 26-1835 (2d Cir.), docket entry 46 (CourtListener) |
| 2026-08-31 | Kalshi | Kalshi filed its opening brief in the Second Circuit, and the Gaming Commission officials' brief is due October 30, 2026. KalshiEX LLC v. Williams, No. 26-1835 (2d Cir.), docket entries 43-45 (CourtListener) |
| 2026-08-12 | Polymarket | The New York City Council opened an investigation into prediction-market marketing, focusing on allegations that Polymarket used influencers to entice young adults with false and deceptive marketing. New York City Council Announces Investigation of Deceptive and Predatory Marketing Practices by Prediction Market Platforms |
| 2026-08-12 | Kalshi | New York City Council Speaker Julie Menin announced an investigation into the marketing practices of Kalshi, Polymarket, Coinbase and Gemini Titan and sent them information requests. New York City Council Announces Investigation of Deceptive and Predatory Marketing Practices by Prediction Market Platforms |
| 2026-08-11 | Kalshi | The CFTC used its emergency authority to order Kalshi to keep operating as normal, citing New York's motion to bar Kalshi from offering event contracts 'within or from New York' and the state's demand for at least $36 billion. CFTC Order Directing Kalshi to Continue Exercising DCM Functions |
| 2026-08-07 | Kalshi | New York moved to send its Kalshi case back to state court; the motion was reassigned to Judge Vernon S. Broderick and fully briefed by August 28. People of the State of New York v. KalshiEX LLC, No. 1:26-cv-06550 (S.D.N.Y.), docket (CourtListener) |
| 2026-08 | Kalshi | A federal judge in Manhattan denied, without prejudice, the CFTC's emergency request for a temporary restraining order that would have blocked New York's enforcement case against Kalshi. NY Judge Denies CFTC Motion to Halt Enforcement Action Against Kalshi (Cointelegraph) (news) |
| 2026-07-31 | Kalshi | Attorney General Letitia James sued Kalshi in state court under Executive Law 63(12), seeking to stop it operating as an unlicensed gambling business plus restitution, forfeiture of gains and fines of three times its gains. Governor Hochul and Attorney General James Announce New York Has Sued Kalshi for Running Illegal Gambling Operation |
| 2026-07-31 | Kalshi | Kalshi removed the Attorney General's case to federal court in Manhattan the same day (S.D.N.Y. No. 1:26-cv-06550). People of the State of New York v. KalshiEX LLC, No. 1:26-cv-06550 (S.D.N.Y.), docket (CourtListener) |
| 2026-07-29 | Kalshi | A single Second Circuit judge denied Kalshi a temporary injunction and referred its motion for an injunction pending appeal to a three-judge panel. KalshiEX LLC v. Williams, No. 26-1835 (2d Cir.), docket entry 32 (CourtListener) |
| 2026-07-27 | Kalshi | The district court denied Kalshi's emergency motion for an injunction pending appeal and its request for short-term administrative relief. KalshiEX LLC v. Williams, No. 25-cv-08846-AT (S.D.N.Y.), Order, Doc. 113 |
| 2026-07-08 | Kalshi | Kalshi's appeal of that ruling was docketed at the U.S. Court of Appeals for the Second Circuit as No. 26-1835. People of the State of New York v. KalshiEX LLC, Verified Petition (N.Y. Sup. Ct., New York County) |
| 2026-07-07 | Kalshi | Judge Analisa Torres (S.D.N.Y.) denied Kalshi's motion for a preliminary injunction against the Gaming Commission officials, finding all four injunction factors weighed against Kalshi. KalshiEX LLC v. Williams, No. 25-cv-08846-AT (S.D.N.Y.), Opinion and Order, Doc. 106 |
| 2026-04-24 | Kalshi | The CFTC sued the State of New York in federal court in Manhattan, seeking a ruling that the CFTC has exclusive authority over event contracts and an injunction against state enforcement against its registrants. CFTC Sues New York Over Prediction Markets Amid Ongoing Efforts to Preserve Jurisdiction (Release 9218-26) |
| 2025-10-28 | Kalshi | The Gaming Commission agreed not to take enforcement action over the conduct in its cease-and-desist until the court ruled on Kalshi's injunction request. People of the State of New York v. KalshiEX LLC, Verified Petition (N.Y. Sup. Ct., New York County) |
| 2025-10-27 | Kalshi | Kalshi sued the Gaming Commission and its commissioners in federal court in Manhattan (KalshiEX LLC v. Williams, No. 25-cv-08846) to block the cease-and-desist. People of the State of New York v. KalshiEX LLC, Verified Petition (N.Y. Sup. Ct., New York County) |
| 2025-10-24 | Kalshi | The New York State Gaming Commission ordered Kalshi to cease and desist from operating an unlicensed mobile sports wagering platform in New York. Governor Hochul and Attorney General James Announce New York Has Sued Kalshi for Running Illegal Gambling Operation |
State regulator: New York State Gaming Commission. Regulates sports wagering and issued the October 2025 cease-and-desist to Kalshi; the Attorney General (ag.ny.gov) brings the court enforcement cases.
Polymarket US operates as a CFTC-designated contract market after Polymarket bought the CFTC-licensed exchange QCEX; Kalshi has been a designated contract market since 2020. Whether states may still apply their gambling laws to sports event contracts is being decided in the courts:
How sure is this page? Confidence: high. Current availability is reported by CBS Sports and Covers within the last two days, and each state or court event listed is confirmed by court records, CFTC orders, or New York government releases, though the status could change quickly once the remand and Second Circuit motions are decided. Researched September 25, 2026; court cases in several states can change the status at any time.
Related: all states · Polymarket US · polymarket.com and the United States · is Kalshi legal in New York? (Kalshi View)
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As of September 25, 2026: polymarket.com does not let US users open new positions, including in New York. Polymarket US, the CFTC-regulated app, is reported available in New York according to CBS Sports (September 24, 2026). 4 state actions involving Polymarket and 17 involving Kalshi are listed below with their sources. This is a dated summary of public sources, not legal advice.
Not for new trades. Polymarket's help center lists the United States as a blocked country and its developer documentation lists it as close-only (existing positions can be closed, new ones cannot be opened); US residents are pointed to Polymarket US.
Available; sports contracts available, according to the sources on this page as of September 25, 2026.
Polymarket View is independent and not affiliated with Polymarket or Kalshi. This page summarises public sources; it is not legal advice. Polymarket odds today