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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 Kentucky. Polymarket US, the CFTC-regulated app, is reported available in Kentucky according to CBS Sports (September 24, 2026). 6 state actions involving Polymarket and 10 involving Kalshi are listed below with their sources. This is a dated summary of public sources, not legal advice.
| Service | Kentucky |
|---|---|
| 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 Kentucky, including sports, while the Attorney General's 2026-06-17 suits sit in federal court with remand motions pending; a 14.25% excise tax on prediction-market operators (HB 757) takes effect 2027-01-01 and is being challenged, and the CFTC's suit against Kentucky has argument set for 2026-10-09.
| Date | Company | Event and source |
|---|---|---|
| 2026-08-24 | Kalshi | The CFTC and the Coalition for Fair Markets (which moved to intervene on July 27) filed summary-judgment motions, Kentucky moved to dismiss, and oral argument was reset to Oct. 9, 2026. USA v. Commonwealth of Kentucky (E.D. Ky.), docket |
| 2026-07-22 | Kalshi | The CFTC withdrew its preliminary-injunction motion against Kentucky and the court set an expedited summary-judgment schedule instead. USA v. Commonwealth of Kentucky, No. 3:26-cv-00049 (E.D. Ky.), docket |
| 2026-07-20 | Polymarket | Kentucky moved to send its Polymarket case back to state court; no ruling appears on the available docket, which ends on 2026-07-28. Commonwealth of Kentucky v. QCX LLC (E.D. Ky.), docket |
| 2026-07-20 | Kalshi | Kentucky moved to send its Kalshi case back to state court; the motion was fully briefed and submitted to Judge Robert E. Wier on 2026-09-01, with no ruling on the docket as of 2026-09-22. Commonwealth of Kentucky v. KalshiEX LLC (E.D. Ky.), docket |
| 2026-06-23 | Polymarket | The CFTC sued Kentucky to stop its enforcement suits and tax, naming Polymarket US among the targeted federally regulated exchanges. CFTC complaint, United States and CFTC v. Commonwealth of Kentucky (E.D. Ky.) |
| 2026-06-23 | Kalshi | The CFTC and the United States sued Kentucky, the Attorney General, the governor, the revenue commissioner and the KHRGC in federal court (No. 3:26-cv-00049), arguing federal law preempts Kentucky's enforcement suits and HB 757's tax. CFTC complaint, United States and CFTC v. Commonwealth of Kentucky, No. 3:26-cv-00049 (E.D. Ky.) (announced in CFTC Release 9260-26) |
| 2026-06-19 | Kalshi | Kalshi removed Kentucky's lawsuit to federal court in the Eastern District of Kentucky (No. 3:26-cv-00048). Commonwealth of Kentucky v. KalshiEX LLC (E.D. Ky.), docket entry 1 |
| 2026-06-18 | Polymarket | QCX, Blockratize, QC Clearing and QC Tech removed Kentucky's Polymarket case to federal court in the Eastern District of Kentucky (No. 3:26-cv-00047). Commonwealth of Kentucky v. QCX LLC, No. 3:26-cv-00047 (E.D. Ky.), docket |
| 2026-06-17 | Polymarket | Kentucky sued QCX LLC (Polymarket US) and related entities in Franklin Circuit Court (No. 26-CI-00696), alleging unauthorized sports gambling in Kentucky. CFTC complaint, United States and CFTC v. Commonwealth of Kentucky (E.D. Ky.) |
| 2026-06-17 | Kalshi | Kentucky, through Attorney General Russell Coleman, sued Kalshi entities and partners Robinhood, Coinbase and Webull in Franklin Circuit Court (No. 26-CI-00689), alleging illegal sports gambling and seeking penalties, damages and an order barring them from offering event contracts in Kentucky without a state license. CFTC complaint, United States and CFTC v. Commonwealth of Kentucky (E.D. Ky.) |
| 2026-06-12 | Polymarket | QCX LLC (Polymarket US), with KalshiEX and Crypto.com's exchange, sued through the Coalition for Fair Markets in Franklin Circuit Court to block HB 757's tax. Kalshi, Crypto.com and Polymarket US Sue to Block Kentucky Prediction Market Tax (DeFi Rate) (news) |
| 2026-06-12 | Kalshi | The Coalition for Fair Markets, a group representing Kalshi and Polymarket, sued in Franklin Circuit Court to block HB 757's 14.25% tax as unconstitutional. Dueling lawsuits: KY AG sues prediction market companies a week after they sue over taxes (Kentucky Lantern via LINK nky) (news) |
| 2026-04-27 | Kalshi | The governor signed House Bill 869 (2026 Ky. Acts ch. 198), which narrows HB 904's ban to licensees contracting with entities offering sports event contracts or sports prediction markets. Kentucky General Assembly, 2026 RS HB 869 bill record |
| 2026-04-14 | Polymarket | Kentucky enacted House Bill 757 over the governor's veto, creating a new excise tax on all prediction market operators. Kentucky General Assembly, 2026 RS HB 757 bill record |
| 2026-04-14 | Kalshi | Kentucky enacted House Bill 757 over the governor's veto (2026 Ky. Acts ch. 161), creating a new excise tax on prediction market operators. Kentucky General Assembly, 2026 RS HB 757 bill record |
| 2026-04-14 | Kalshi | Kentucky enacted House Bill 904 over the governor's veto (2026 Ky. Acts ch. 184), barring state-licensed tracks and fantasy-contest licensees from contracting with platforms that offer event contracts through a prediction market. Kentucky General Assembly, 2026 RS HB 904 bill record |
State regulator: Kentucky Horse Racing and Gaming Corporation (KHRGC); enforcement suits are brought by Attorney General Russell Coleman. KHRGC regulates sports wagering in Kentucky and is a defendant in the CFTC's suit; the Attorney General's website (ag.ky.gov) returned HTTP 403.
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: medium. Legal events are confirmed by court and government records, but current availability rests on one recent news tracker plus the state's July court filing, and Polymarket US's status is news-only. 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 Kentucky? (Kalshi View)
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As of September 25, 2026: polymarket.com does not let US users open new positions, including in Kentucky. Polymarket US, the CFTC-regulated app, is reported available in Kentucky according to CBS Sports (September 24, 2026). 6 state actions involving Polymarket and 10 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