Availability · Washington
Is Kalshi legal in Washington, and which prediction markets are?
Mostly not. Washington’s Gambling Commission says event-based contract markets are not authorised there, and a King County court order bars Kalshi’s sports, politics, entertainment and several other categories. OG has an agreement with the state while its federal case is stayed. Sports betting is legal only at tribal casinos.
Of the 57 platforms we review, 10 are open in Washington, 7 with restrictions and 27 not at all; for 13 the terms do not say. Sports betting in Washington: legal only at tribal casinos, under tribal-state compacts (wsgc.wa.gov).
Not legal advice. Eligibility usually follows where you are when you trade, and a platform can refuse an individual account. Checked 9 November 2026.
What can you trade on Kalshi in Washington?
Kalshi lists event contracts on politics, sports, crypto, economics, entertainment, science and more (its own API lists 14 categories).
Kalshi restricts some of its contracts in Washington. A King County Superior Court order requires Kalshi to stop offering sports, elections, politics, entertainment, culture, tech and science, and mentions contracts in Washington (Washington Attorney General, 13 August 2026). Other contracts remain available.
7 entries in Washington’s record below involve Kalshi; the latest is dated 6 November 2026.
How to sign up for Kalshi in Washington
- Open an account on kalshi.com or in its iOS or Android app.
- Verify your identity before you trade: your full legal name, date of birth, a residential address (no PO boxes or commercial addresses) and a live photo of a driver’s licence or passport. Kalshi may also ask for proof of address, employment information or source of funds.
- Expect a location check: regulated apps confirm which state you are in when you trade, not only where you live.
- Deposit at least $10 ($1,000 by wire). Bank transfers (ACH) carry no Kalshi fee; debit-card deposits carry a 2% processing fee.
- On each trade, takers pay 0.07 × contracts × price × (1 − price), about $1.75 per 100 contracts at 50¢; makers usually pay nothing.
The full picture is in our Kalshi review, with costs on typical trades in the fees guide.
Is Kalshi sports betting in Washington?
Sports betting in Washington: legal only at tribal casinos, under tribal-state compacts.
Kalshi is not a sportsbook. It is an exchange the CFTC has designated as a contract market (since 3 November 2020), where you trade event contracts against other traders, and federally those contracts are regulated as derivatives.
Washington’s regulators or courts have acted against Kalshi, so its sports contracts may be limited there; the dated record below shows what applies.
What Washington has done 11
multistate amicus brief (Second Circuit, No. 26-1835)Kalshi
Attorneys General of Ohio, Nevada, 35 other states, D.C. and the Northern Mariana Islands. Brief supporting New York's Gaming Commission in Kalshi's appeal from the denial of a preliminary injunction against New York's cease-and-desist, arguing federal commodities law does not displace state gambling law.
multistate amicus brief (Seventh Circuit, Nos. 26-2636, 26-2675, 26-2696)Kalshi, Polymarket, Crypto.com Prediction Markets
Attorneys General of Ohio, Nevada, 36 other states, D.C. and the Northern Mariana Islands. Brief supporting Wisconsin in the CFTC's appeal from the denial of a preliminary injunction against Wisconsin's gambling suits, arguing the Commodity Exchange Act does not clearly displace state power over gambling.
multistate amicus brief (Tenth Circuit, No. 26-4100)Kalshi
Attorneys General of Ohio, Nevada, 35 other states, D.C. and the Northern Mariana Islands. Brief supporting Utah in Kalshi's appeal from the Utah judgment, arguing Kalshi's preemption theory would leave sports betting largely unregulated and that the CFTC's new reading deserves no deference.
lawsuit (platform v. state)Underdog Predictions
Underdog Exchange DCM, Inc. and UDM, LLC v. Brown et al., W.D. Wash. No. 2:26-cv-03200. Underdog sued the Washington Attorney General and Gambling Commission officials, arguing federal commodities law preempts state gambling law for its event contracts. The state moved to dismiss on 28 Oct; Underdog moved for a preliminary injunction on 29 Oct.
stipulated order (enforcement forbearance)Crypto.com Prediction Markets
US District Court, W.D. Wash. (NADEX d/b/a OG v. Brown, 2:26-cv-02579). OG/NADEX sued on 22 Jul 2026. The AG and WSGC stipulated not to enforce state law against OG's DCM event-contract trading, and the case is stayed pending the related Ninth Circuit appeals (stipulation filed 18 Aug).
preliminary injunction (final order on terms)Kalshi
King County Superior Court. The order bars sports, elections, politics, entertainment, culture, tech & science, and mentions contracts, with an IP/residency geofence by 19 Aug and a multi-source geofence by 2 Sep. Per the AG, the WA Court of Appeals denied Kalshi a stay.
lawsuit (platform v. state)Novig
Ludlow Exchange LLC (Novig), federal suit v. AG Brown and WSGC. Novig's exchange filed for declaratory and injunctive relief in W.D. Wash. (3:26-cv-05888).
preliminary injunctionKalshi
King County Superior Court. The court found Kalshi likely violated the Gambling Act and CPA and granted a PI; the final terms were to follow (release dated 21 Jul 2026).
remand orderKalshi
US District Court, W.D. Wash. (Judge Coughenour). Kalshi's removal of the AG case was undone by remand to King County Superior Court. The Ninth Circuit denied a stay pending appeal on 21 May 2026.
lawsuitKalshi
Washington Attorney General (Nick Brown). The AG sued Kalshi under the Gambling Act and the Consumer Protection Act in King County Superior Court.
regulatory guidance
Washington State Gambling Commission. WSGC guidance says offering or taking part in event-based contract markets is not authorized in Washington. It is not aimed at a named platform.
Every state’s actions on one dated timeline: the prediction market regulation tracker.
Prediction market apps you can use in Washington 10
Help centre: “currently available in all U.S. states”, though some event contracts may be unavailable in some states (not named). App Store: “Available in all 50 US states”. New York has separate funding and portfolio articles.
“Novig is available nationwide except Arizona, Nevada, Michigan and Ohio” (Novig’s state page, updated 4 November 2026); its help centre still lists only Arizona, Nevada and Michigan. Eligibility is based on physical location when you trade, and users must be 21 or older.
DraftKings' own availability page (updated 2026-07-22) lists 48 states for Predictions, plus DC and US territories. Access depends on physical location and excludes tribal land. Sports markets vary by state; the breakdown is shown only as an image that could not be read. The official availability page and Predictions Terms returned 403.
FanDuel Predicts is available in all 50 states and DC. Users must be 18+ and verify their identity. It is not available on or near tribal land.
Prediction Trading (and Sports Event Trading) is a CFTC-regulated feature of the Crypto.com App, offered through Crypto.com | Derivatives North America. The help centre says it is available in the US only.
A King County Superior Court order requires Kalshi to stop offering sports, elections, politics, entertainment, culture, tech and science, and mentions contracts in Washington (Washington Attorney General, 13 August 2026). Other contracts remain available.
QCX LLC publishes no list of eligible or excluded states. A Nevada court granted a preliminary injunction against QCX LLC d/b/a Polymarket US on 29 May 2026 (Nevada Gaming Control Board). Missouri's Attorney General has sent a cease-and-desist over sports contracts, and New York has announced a lawsuit; neither state is marked closed because the operator has not said it geoblocks them.
The international polymarket.com site is closed to US residents: no deposits and no trades. The help centre lists the US as blocked and the API docs list it as close-only. US residents are sent to the separate Polymarket US app, run by QCX LLC (a CFTC DCM). Polymarket US state-level eligibility was not verified because its ToS page loads its text client-side.
ProphetX says it is “available nationwide” but publishes no excluded-state list; its help centre says access “is restricted from certain locations and IP addresses”. Connecticut reportedly ordered it to stop offering sports contracts to residents (September 2026); the order could not be read on the regulator’s site.
Only in states where Underdog Predict operates: "Must be 18+ and present in a state where Underdog Predict operates". The operator's state list (help centre) could not be read, so other states are unconfirmed.
Available 10
Help centre: “currently available in all U.S. states”, though some event contracts may be unavailable in some states (not named). App Store: “Available in all 50 US states”. New York has separate funding and portfolio articles.
“Novig is available nationwide except Arizona, Nevada, Michigan and Ohio” (Novig’s state page, updated 4 November 2026); its help centre still lists only Arizona, Nevada and Michigan. Eligibility is based on physical location when you trade, and users must be 21 or older.
DraftKings' own availability page (updated 2026-07-22) lists 48 states for Predictions, plus DC and US territories. Access depends on physical location and excludes tribal land. Sports markets vary by state; the breakdown is shown only as an image that could not be read. The official availability page and Predictions Terms returned 403.
FanDuel Predicts is available in all 50 states and DC. Users must be 18+ and verify their identity. It is not available on or near tribal land.
Clients of Interactive Brokers LLC aged 21+ are eligible for event/forecast contracts; ForecastEx contracts on US election results are limited to eligible US residents.
Prediction Trading (and Sports Event Trading) is a CFTC-regulated feature of the Crypto.com App, offered through Crypto.com | Derivatives North America. The help centre says it is available in the US only.
Not on Alpha Arcade’s list of restricted jurisdictions. Absence from the list does not by itself establish that an individual may use the platform.
The Terms and Conditions limit participation to people aged 18 or older who are U.S. Persons. They name no US state as excluded. PredictIt runs under CFTC no-action relief.
Not on Delphi’s list of restricted jurisdictions. Absence from the list does not by itself establish that an individual may use the platform.
Not on Rain’s list of restricted jurisdictions. Absence from the list does not by itself establish that an individual may use the platform.
Available with restrictions 7
A King County Superior Court order requires Kalshi to stop offering sports, elections, politics, entertainment, culture, tech and science, and mentions contracts in Washington (Washington Attorney General, 13 August 2026). Other contracts remain available.
QCX LLC publishes no list of eligible or excluded states. A Nevada court granted a preliminary injunction against QCX LLC d/b/a Polymarket US on 29 May 2026 (Nevada Gaming Control Board). Missouri's Attorney General has sent a cease-and-desist over sports contracts, and New York has announced a lawsuit; neither state is marked closed because the operator has not said it geoblocks them.
The international polymarket.com site is closed to US residents: no deposits and no trades. The help centre lists the US as blocked and the API docs list it as close-only. US residents are sent to the separate Polymarket US app, run by QCX LLC (a CFTC DCM). Polymarket US state-level eligibility was not verified because its ToS page loads its text client-side.
ProphetX says it is “available nationwide” but publishes no excluded-state list; its help centre says access “is restricted from certain locations and IP addresses”. Connecticut reportedly ordered it to stop offering sports contracts to residents (September 2026); the order could not be read on the regulator’s site.
Only in states where Underdog Predict operates: "Must be 18+ and present in a state where Underdog Predict operates". The operator's state list (help centre) could not be read, so other states are unconfirmed.
Listed in the Terms (updated 24 Jan 2025) among countries whose residents may not use Real-Money Services. Play-money (Ooms) markets stay open, and the app tells users from Restricted Jurisdictions they can still bet play money.
These states and DC are ineligible for Prize Drawings, so residents there get play-money (mana) trading only.
Not available 27
General Terms: users must not reside in, be citizens of or be incorporated in the USA; using a VPN to get round this is prohibited.
United States named in the Restricted Jurisdictions list; trading not permitted. Terms of Use (no date shown), Restricted Jurisdictions clause.
USA named as a restricted jurisdiction; trading not permitted, content features only. Terms of Service last updated November 18, 2025.
Listed as a restricted jurisdiction in Pascal’s terms.
Contracts and services are not offered to US Persons. Terms of Use (no date shown).
United States of America is a Prohibited Territory; trading in Supported Contracts not permitted. Terms of Use updated January 13, 2026, section 2 Prohibited Territories.
Listed as a restricted jurisdiction in MagicMarkets’s terms.
Listed as a restricted jurisdiction in Meridian Predict’s terms.
Platform is not available for trading to users from the USA. Terms of Service last updated September 15, 2026, section 1 Eligibility.
Listed as a restricted jurisdiction in SX Bet’s terms.
Listed as a restricted jurisdiction in PRED’s terms.
Listed as a restricted jurisdiction in Overtime’s terms.
Listed as a restricted jurisdiction in Ratio’s terms.
Listed as a restricted jurisdiction in PredictEX’s terms.
Listed as a restricted jurisdiction in Hermes Trade’s terms.
Terms (updated 15 Jun 2026) s.1.6 treats US residents, US-located persons and US entities as Restricted Persons barred from the whole interface, including HIP-4 outcome markets.
Listed as a restricted jurisdiction in Prophet Prediction Market’s terms.
Listed as a restricted jurisdiction in Azuro’s terms.
Listed as a restricted jurisdiction in Levr Bet’s terms.
Terms of Service (no date shown) state the Services are not available to US Persons, including those accessing from US territory.
United States named as a Restricted Jurisdiction; Restricted Persons must not use the Services. Terms & Conditions last updated September 25, 2025 (embedded at xmarket.app/terms), section 3.2.
Listed as a restricted jurisdiction in GameClub’s terms.
Listed as a restricted jurisdiction in CRSHMARKET’s terms.
United States is named on Probable's Restricted Jurisdictions page (no date shown); access and use prohibited for residents, citizens or persons located there.
Listed as a restricted jurisdiction in Divvy.Bet’s terms.
Not in Onyx's Predictions availability list. Many of these states do get the free-to-play/sweepstakes product, which this record does not cover.
Listed as a restricted jurisdiction in World’s terms.
Not verified 13
Prediction markets in Washington: common questions
- Are prediction markets legal in Washington?
Mostly not. Washington’s Gambling Commission says event-based contract markets are not authorised there, and a King County court order bars Kalshi’s sports, politics, entertainment and several other categories. OG has an agreement with the state while its federal case is stayed. Sports betting is legal only at tribal casinos.
- What betting apps are legal in Washington?
Sports betting in Washington: legal only at tribal casinos, under tribal-state compacts. Of the regulated prediction-market apps we review, 5 are open in Washington on our records, including OG, Novig, DraftKings Predictions, FanDuel Predicts and Crypto.com Prediction Markets. They offer event contracts under CFTC rules rather than state sports-betting licences, which some states dispute.
- How do I sign up for Kalshi in Washington?
Open an account on kalshi.com or its app, verify your identity (legal name, date of birth, residential address and a photo of a driver’s licence or passport) and deposit at least $10 ($1,000 by wire). Bank transfers (ACH) carry no Kalshi fee; debit-card deposits carry a 2% processing fee. What you can trade depends on Washington’s rules, set out on this page.
- Is Kalshi sports betting in Washington?
Federally, no: Kalshi is a CFTC-designated exchange and its event contracts are regulated as derivatives, not licensed as bets. Washington’s regulators or courts have acted against Kalshi, so its sports contracts may be limited there; this page shows what applies.
- Is Kalshi legal in Washington?
Only in part. Kalshi restricts access in Washington. A King County Superior Court order requires Kalshi to stop offering sports, elections, politics, entertainment, culture, tech and science, and mentions contracts in Washington (Washington Attorney General, 13 August 2026). Other contracts remain available.
- Is Polymarket US legal in Washington?
Only in part. Polymarket US restricts access in Washington. QCX LLC publishes no list of eligible or excluded states. A Nevada court granted a preliminary injunction against QCX LLC d/b/a Polymarket US on 29 May 2026 (Nevada Gaming Control Board).
Missouri's Attorney General has sent a cease-and-desist over sports contracts, and New York has announced a lawsuit; neither state is marked closed because the operator has not said it geoblocks them.
- Is Dexsport legal in Washington?
No. Dexsport is not available in Washington. General Terms: users must not reside in, be citizens of or be incorporated in the USA; using a VPN to get round this is prohibited.
- Is OG legal in Washington?
Yes — our records show OG open in Washington. Help centre: “currently available in all U.S. states”, though some event contracts may be unavailable in some states (not named). App Store: “Available in all 50 US states”. New York has separate funding and portfolio articles.
- Is Polymarket legal in Washington?
Only in part. Polymarket restricts access in Washington. The international polymarket.com site is closed to US residents: no deposits and no trades. The help centre lists the US as blocked and the API docs list it as close-only. US residents are sent to the separate Polymarket US app, run by QCX LLC (a CFTC DCM). Polymarket US state-level eligibility was not verified because its ToS page loads its text client-side.
- Is Novig legal in Washington?
Yes — our records show Novig open in Washington. “Novig is available nationwide except Arizona, Nevada, Michigan and Ohio” (Novig’s state page, updated 4 November 2026); its help centre still lists only Arizona, Nevada and Michigan. Eligibility is based on physical location when you trade, and users must be 21 or older.
- Is DraftKings Predictions legal in Washington?
Yes — our records show DraftKings Predictions open in Washington. DraftKings' own availability page (updated 2026-07-22) lists 48 states for Predictions, plus DC and US territories. Access depends on physical location and excludes tribal land. Sports markets vary by state; the breakdown is shown only as an image that could not be read. The official availability page and Predictions Terms returned 403.
- Is FanDuel Predicts legal in Washington?
Yes — our records show FanDuel Predicts open in Washington. FanDuel Predicts is available in all 50 states and DC. Users must be 18+ and verify their identity. It is not available on or near tribal land.
- Is Underdog Predictions legal in Washington?
Only in part. Underdog Predictions restricts access in Washington. Only in states where Underdog Predict operates: "Must be 18+ and present in a state where Underdog Predict operates". The operator's state list (help centre) could not be read, so other states are unconfirmed.