Is Kalshi legal? › Connecticut
Status as of September 25, 2026 · every line has its source and date · not legal advice
As of September 25, 2026, Kalshi is available in Connecticut, and its sports contracts are available, according to CBS Sports (September 24, 2026). 15 state actions involving Kalshi are listed below with their sources. This is a dated summary of public sources, not legal advice.
| Service | Connecticut |
|---|---|
| Kalshi (CFTC-regulated exchange) | Available |
| Kalshi sports contracts | Available |
| Polymarket US (for comparison) | Unclear (sources disagree) |
| polymarket.com (international site) | No new trades for US users |
Kalshi is reported live in Connecticut, including sports, for now: a federal judge denied Kalshi's preliminary injunction in August 2026 and the state sued Kalshi on 2026-08-26, but the state court refused an immediate ban and the case now sits in federal court pending a remand decision, while Kalshi's Second Circuit injunction motion is pending. Polymarket US status is unclear because reputable outlets conflict.
| Date | Company | Event and source |
|---|---|---|
| 2026-09-17 | Kalshi | Judge Oliver stayed all deadlines in the removed State case until he decides whether to send it back to state court. State of Connecticut v. KalshiEX LLC, 3:26-cv-01382 (D. Conn.) docket, ECF No. 39 |
| 2026-09-11 | Kalshi | The CFTC asked for a preliminary injunction against Connecticut in its federal suit, with responses due Oct. 2, 2026. USA v. State of Connecticut, 3:26-cv-00498 (D. Conn.) docket, ECF No. 102 |
| 2026-09-08 | Kalshi | Connecticut moved to send its enforcement case back to state court. State of Connecticut v. KalshiEX LLC, 3:26-cv-01382 (D. Conn.) docket, ECF No. 15 |
| 2026-09-03 | Kalshi | The Second Circuit ordered Kalshi's Connecticut appeal to be heard in tandem with appeals 26-1835 and 26-2297, and set Kalshi's opening brief for Sept. 30, 2026. KalshiEX LLC v. Cafferelli, No. 26-2239 (2d Cir.) docket, entries 34 and 36 |
| 2026-08-26 | Kalshi | Connecticut sued Kalshi in Hartford Superior Court (HHD-CV26-6230345-S), seeking temporary and permanent injunctions against its unlicensed sports wagering, disgorgement of revenue and CUTPA penalties. Connecticut Sues Kalshi to Stop Illegal, Unlicensed Sports Betting |
| 2026-08-26 | Kalshi | The Superior Court denied the State's request for an ex parte temporary restraining order against Kalshi's sports contracts on the day the suit was filed. Connecticut Sues Kalshi In State Court, But Judge Rejects Request For Immediate Sports Contracts Ban (news) |
| 2026-08-26 | Kalshi | Kalshi removed the State's case to federal court (No. 3:26-cv-01382), where it was reassigned to Judge Oliver on Aug. 31. State of Connecticut v. KalshiEX LLC, 3:26-cv-01382 (D. Conn.) docket, ECF Nos. 1 and 14 |
| 2026-08-19 | Kalshi | A Second Circuit order denied Kalshi a temporary injunction and sent its injunction motion to a three-judge panel, to be heard with Kalshi's New York appeal (No. 26-1835). KalshiEX LLC v. Cafferelli, No. 26-2239 (2d Cir.) docket, entry 27 |
| 2026-08-15 | Kalshi | Judge Oliver denied Kalshi's emergency motion for an injunction pending appeal. KalshiEX LLC v. Cafferelli, 3:25-cv-02016 (D. Conn.) docket, ECF No. 99 |
| 2026-08-10 | Kalshi | U.S. District Judge Vernon D. Oliver denied Kalshi's preliminary-injunction motion (order docketed Aug. 10, memorandum dated Aug. 7), and Kalshi appealed to the Second Circuit the same day (No. 26-2239). Joint Motion and Proposed Order, ECF No. 101, KalshiEX LLC v. Cafferelli, 3:25-cv-02016 (D. Conn.) |
| 2026-05-26 | Kalshi | Governor Lamont signed Public Act 26-82 (SB 296), whose Section 4 takes effect on passage and lets the Attorney General ask the Superior Court to stop anyone offering unlicensed sports wagering to Connecticut residents. Public Act No. 26-82 (Substitute Senate Bill No. 296) |
| 2026-04-02 | Kalshi | The CFTC sued Connecticut (along with Arizona and Illinois) to assert exclusive federal jurisdiction over prediction markets (USA v. State of Connecticut, No. 3:26-cv-00498). CFTC Sues Trio of States to Reaffirm its Exclusive Jurisdiction Over Prediction Markets (Release 9206-26) |
| 2025-12-08 | Kalshi | Under a joint stipulation, the court ordered state officials not to enforce the Dec. 2, 2025 cease-and-desist letter against Kalshi until it ruled on Kalshi's preliminary-injunction motion. KalshiEX LLC v. Cafferelli, 3:25-cv-02016 (D. Conn.) docket, ECF No. 35 |
| 2025-12-03 | Kalshi | The Department of Consumer Protection's Gaming Division ordered KalshiEX, Robinhood Derivatives and Crypto.com to stop offering sports event contracts to Connecticut residents and to let residents withdraw their funds. Connecticut Consumer Protection Orders Cease and Desist Conducting Unlicensed Online Gambling |
| 2025-12-03 | Kalshi | Kalshi sued the DCP Commissioner, the Gaming Director, DCP and Attorney General Tong in federal court (KalshiEX LLC v. Cafferelli, No. 3:25-cv-02016). KalshiEX LLC v. Cafferelli, 3:25-cv-02016 (D. Conn.) docket |
State regulator: Connecticut Department of Consumer Protection, Gaming Division. Issued the December 2025 cease-and-desist orders; the Attorney General sues at the DCP Commissioner's request under C.G.S. 12-861(c).
Kalshi has been a CFTC-designated contract market since November 4, 2020 (CFTC release 8302-20). Whether states may still apply their gambling laws to sports event contracts is being decided in the courts, and the federal appeals courts do not agree yet:
How sure is this page? Confidence: medium. Kalshi's status and the court events are confirmed by official dockets, the AG release and a Sept. 24 CBS report, but Polymarket's status rests on one news report and Kalshi's position could change once the remand motion and the Second Circuit injunction motion are decided. Researched September 25, 2026; court cases can change the status at any time, so check Kalshi's app before you trade.
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As of September 25, 2026, Kalshi is available in Connecticut, and its sports contracts are available, according to CBS Sports (September 24, 2026). 15 state actions involving Kalshi are listed below with their sources. This is a dated summary of public sources, not legal advice.
Kalshi's sports contracts are available in Connecticut according to the sources on this page as of September 25, 2026. State lawsuits and court orders can change that quickly, so check the dated timeline and Kalshi's app.
Yes, federally: the CFTC designated KalshiEX LLC as a contract market on November 4, 2020. States disagree on whether their gambling laws also reach sports event contracts, and federal courts are split, so availability differs by state.