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 New Hampshire, and its sports contracts are available, according to CBS Sports (September 24, 2026). No state action involving Kalshi or Polymarket was found in the sources checked. This is a dated summary of public sources, not legal advice.
Status at a glance
Service
New Hampshire
Kalshi (CFTC-regulated exchange)
Available
Kalshi sports contracts
Available
Polymarket US (for comparison)
Reported available
polymarket.com (international site)
No new trades for US users
Kalshi and Polymarket US are reported live in New Hampshire, including sports. No New Hampshire state action involving Kalshi or Polymarket was found in the sources checked, and New Hampshire's Attorney General does not appear among the signers of the eight multistate amicus briefs or the 41-attorney-general comment letter reviewed for this file.
State regulator: New Hampshire Lottery Commission. Oversees sports wagering in New Hampshire; its homepage (checked 2026-09-25) shows no statement on prediction markets. The New Hampshire Department of Justice website returned HTTP 403 to automated requests.
The federal picture
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:
September 25, 2026: Pending appellate decisions that could change several states' status: Sixth Circuit (Kalshi v. Ohio, No. 26-3196, and Kalshi v. Tennessee, No. 26-5235; argued 2026-07-30), Fourth Circuit (Kalshi v. Maryland, No. 25-1892; argued 2026-05-07), Second Circuit (Kalshi's New York and Connecticut appeals, Nos. 26-1835 and 26-2239, heard in tandem), Seventh Circuit (CFTC and Kalshi appeals from the Wisconsin injunction denial, No. 26-2636 et al.), Tenth Circuit (Kalshi v. Utah, No. 26-4100). No decision in any of these appeared in the court records checked for this file (CourtListener; indexes can lag PACER by a few days). CourtListener dockets cited in the Ohio, Tennessee, Maryland, New York, Connecticut, Wisconsin and Utah entries
September 16, 2026: Ninth Circuit (Blue Lake Rancheria v. Kalshi, Inc., No. 25-7504; Murguia, McKeown, Paez; opinion by Judge McKeown) affirmed in part and reversed in part the denial of two California tribes' preliminary-injunction motion, holding the tribes likely to succeed in showing Kalshi's sports event contracts entered from tribal lands are class III gaming offered in violation of IGRA and their gaming procedures; the case was remanded for the remaining injunction factors, so no injunction had issued as of the last docket entry checked. Blue Lake Rancheria v. Kalshi, Inc., No. 25-7504 (9th Cir. Sept. 16, 2026) - published opinion (PDF)
September 8, 2026: Southern District of Iowa (KalshiEX LLC v. Bird, No. 4:26-cv-00109) denied Kalshi a preliminary injunction against Iowa's Attorney General and Racing and Gaming Commission, finding Kalshi unlikely to succeed on preemption; Kalshi appealed to the Eighth Circuit (No. 26-2874, docketed 2026-09-17), a fifth federal circuit now hearing the question. KalshiEX LLC v. Bird, No. 4:26-cv-00109 (S.D. Iowa), Order Denying Motion for Preliminary Injunction (Doc. 57)
September 2, 2026: New Jersey petitioned the US Supreme Court for certiorari in Flaherty v. KalshiEX, LLC (No. 26-299, docketed 2026-09-08); Kalshi's response deadline was extended to 2026-11-09; an amicus brief was filed 2026-09-22 by the National Council of Legislators from Gaming States. Supreme Court docket No. 26-299
How sure is this page? Confidence: medium. Availability rests on news roundups (CBS Sports and Covers, 2026-09-24; FOX Sports, 2026-08-06) that agree, and no state action appeared in court records, the multistate filings or two legal timelines, but the Department of Justice website could not be checked. Researched September 25, 2026; court cases can change the status at any time, so check Kalshi's app before you trade.
As of September 25, 2026, Kalshi is available in New Hampshire, and its sports contracts are available, according to CBS Sports (September 24, 2026). No state action involving Kalshi or Polymarket was found in the sources checked. This is a dated summary of public sources, not legal advice.
Can I trade sports contracts on Kalshi in New Hampshire?
Kalshi's sports contracts are available in New Hampshire 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.
Is Kalshi regulated?
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.