States / Washington
Legal status · as of Oct 15, 2026
Are prediction markets legal in Washington?
In court
Washington's attorney general sued Kalshi and won a state-court preliminary injunction ruling on July 20, 2026 (terms set after Aug. 3 briefing). Kalshi restricted its offerings in the state in August.
State actions
Regulator orders, lawsuits, rulings and laws, newest first.
| Date | Action | What happened | Sources |
|---|---|---|---|
| Aug 20, 2026 | Other | Kalshi restricts offerings in Washington after a further order. (Kalshi) | Covers timeline |
| Jul 20, 2026 | Other | King County judge grants a preliminary injunction. (Kalshi) | Spokesman-Review |
| Mar 27, 2026 | Lawsuit | AG Nick Brown sues Kalshi in King County Superior Court. (Kalshi) | GeekWire |
Cases involving Washington
Select a case for its full history and sources, or see the legal tracker.
| Case | Status | Last action | Sources |
|---|---|---|---|
| Washington AG v. Kalshi King County Superior Court, Washington | Preliminary injunction in effect | Aug 13, 2026 AG announced order requiring Kalshi to cease covered contracts and geofence Washington (order cited as Aug. 12, 2026). | Washington AG press release (order vs. Kalshi) primary · Cert petition (PDF), No. 26-299 primary · News: SBC Americas (Washington remand; NM tribes) · News: crypto.news (CFTC rules at OIRA; state cases) |
Prediction markets in Washington: questions
Are prediction markets legal in Washington?
In court. Washington's attorney general sued Kalshi and won a state-court preliminary injunction ruling on July 20, 2026 (terms set after Aug. 3 briefing). Kalshi restricted its offerings in the state in August. Exchanges registered with the CFTC, including Kalshi, say federal law lets them offer event contracts in every state; that question is being fought in court. This summarizes public actions and is not legal advice.
What is the latest prediction market action in Washington?
Aug 20, 2026: Kalshi restricts offerings in Washington after a further order.
Is there a lawsuit over prediction markets in Washington?
Yes. Washington AG v. Kalshi (King County Superior Court, Washington): Preliminary injunction in effect.
This page reports court, regulator and legislative actions with links to the filings and coverage. It is not legal advice. The tracker is re-checked every Monday and Thursday. All states · Legal tracker