Trade Markets
    Trade $10, Get $10 Bonus
    TRADE NOW!
    100% up to $50 with Code: ACQUIRE05
    PLAY NOW!
    Up to $100 in Bonus Cash
    Spend 5 get $50 in Novig Coins CODE:SQUAWKA
    Home » Sports betting in the USA with Squawka Bet » Prediction Markets by State: Where Are Kalshi & Polymarket Legal? » Is Kalshi Legal in Washington? Prediction Markets Status (2026)

    Is Kalshi Legal in Washington? Prediction Markets Status (2026)

    Yes — Kalshi and Polymarket operate in Washington, but the state is contested. Washington alleges the platforms breach its gambling laws; the platforms’ requests for emergency injunctions were denied, leaving room for state enforcement.

    This page covers which prediction markets Washington residents can use, whether Kalshi and Polymarket are legal in the state, the age rules, and where the current legal debate stands. It is general information, not legal advice, and the picture is evolving — see the reviewed date below. For the platform detail, see our full Kalshi review.

    Prediction markets available in Washington at a glance

    PlatformAvailable in Washington?Regulation
    KalshiYes — operating, legally contestedCFTC Designated Contract Market
    PolymarketYes — operating, legally contestedCFTC-regulated (QCX licence)
    RobinhoodOperating (contested)CFTC-regulated event contracts
    ProphetXOperating (contested)CFTC-regulated (DCM/DCO)
    Sweepstakes platformsOperate under state sweepstakes lawState sweepstakes rules
    Squawka Signal

    Model vs Market

    Where our model disagrees with the live prediction market on the competitions we cover — the edge is the gap between our probability and the market’s.

    Inter MiamiMLS CupSquawka model10%Market27%OVERPRICED · -17pp

    Signal rates them shorter than the market: 9.7% vs 26.7% (kalshi+polymarket).

    Trade on Kalshi
    Nashville SCMLS CupSquawka model22%Market9%STRONG VALUE · +13pp

    Signal rates them higher than the market: 22.0% vs 9.2% (kalshi+polymarket).

    Trade on Kalshi

    For analysis and entertainment — not financial advice. 21+ where applicable; eligibility varies by US state. See our Kalshi and Polymarket reviews.

    Is Kalshi legal in Washington?

    Kalshi operates in Washington as a CFTC-regulated exchange, but the state alleges its contracts breach Washington gambling law, and the platforms’ emergency-injunction requests were denied — which clears a path for state enforcement. Operational today, but the risk of a crackdown is real; confirm current availability with the platform. For the full regulatory background, see our guide to whether Kalshi is legit and legal.

    Is Polymarket legal in Washington?

    Polymarket operates in Washington via its QCX CFTC licence against the same contested backdrop. See how the two compare in our Kalshi vs Polymarket guide.

    What you can trade in Washington

    Both major platforms are open to Washington residents. Kalshi is the simpler starting point — all-50-state access and bank-direct funding; Polymarket offers the deepest liquidity if you are comfortable funding in crypto.

    Open a prediction-market account in Washington
    New-user offers, subject to eligibility:
    21+ where required. Prediction markets involve risk of loss. If gambling is becoming a problem, call 1-800-GAMBLER.

    Or weigh the whole field in our best prediction markets guide.

    Washington prediction markets FAQs

    Is Kalshi legal in Washington?

    Yes. Kalshi is a CFTC-regulated exchange operating under federal oversight; Washington’s specific position is described above and is evolving, so confirm current availability with the platform.

    Can I use Polymarket in Washington?

    Polymarket operates in Washington via its QCX CFTC licence against the same contested backdrop.

    How old do you have to be?

    CFTC-regulated exchanges such as Kalshi and Polymarket require users to be 18 or over, with identity verification before real-money trading.

    Illustrative availability, last reviewed August 2026 — general information, not legal advice. Prediction-market regulation is evolving and varies by state; always confirm eligibility with the platform. 18+/21+ depending on platform and market. Prediction markets involve risk of financial loss. If gambling is becoming a problem, call 1-800-GAMBLER.