Prediction Markets
in Washington State
Washington state is open for prediction market trading in 2026. All major platforms are available with no state-level restrictions from the Washington Gambling Commission. Washington has no traditional state income tax: but a 7% capital gains tax on high earners (on gains above $262,000) may apply depending on how prediction market profits are characterized. For most traders, the effective state tax rate is 0%.
Which platforms are available in Washington?
| Platform | Status in WA | Notes |
|---|---|---|
| Kalshi | Available | CFTC-regulated DCM: fully available in Washington state. Washington Gambling Commission has not taken action against CFTC platforms. |
| Polymarket | Waitlist | QCEX invite-only. Washington state has not blocked QCEX. |
| Manifold | Available | Play-money and sweepstakes cash available in Washington. |
| PredictIt | Available | CFTC no-action exemption. Politics-only, $850 cap. Available in WA. |
| Robinhood | Available | Sports and economic event contracts fully available in Washington state. |
Washington state: open, tech-forward, no enforcement
Washington state has a Washington Gambling Commission (WGC) with broad authority, but the commission has not targeted CFTC-regulated prediction market platforms. Washington is home to major technology companies (Amazon, Microsoft, Boeing) and has a tech-friendly regulatory culture that may be more receptive to novel financial products than traditional gaming states.
Washington legalized sports betting in 2020, but with a peculiar structure: only tribal casinos and a state lottery app are licensed. This means the incumbent sports betting ecosystem is state-controlled rather than dominated by commercial operators like FanDuel/DraftKings (which are still limited in WA). This reduces the commercial lobbying pressure against prediction markets compared to states like NJ or PA.
- All 5 major prediction market platforms available in Washington state
- No enforcement actions from the WGC against prediction markets
- No state income tax for most residents (important for Seattle's high-earning tech workforce)
- Tech industry familiarity with crypto/prediction markets creates knowledgeable user base
Washington prediction market tax rates
Washington has no state income tax. In 2023, Washington introduced a 7% capital gains tax on gains above $262,000: but this applies to long-term capital gains, not ordinary income. Event contract profits are classified as ordinary income (not capital gains), so the 7% capital gains tax should not apply to prediction market winnings for most traders. Verify with a Washington tax attorney for large positions.
For Seattle-area tech workers with high base salaries, having prediction market income be excluded from state tax is a significant advantage. Only federal income tax (ordinary rates) applies in most scenarios.
Other states
California
West Coast neighbor: very different profile. 13.3% top rate, DFPI scrutiny. Washington's contrast.
Open · TXTexas
Also no state income tax, no enforcement. Washington + Texas + Florida + Nevada = the no-income-tax open states.
OROregon
Washington's neighbor to the south. Higher income tax (up to 9.9%), but open for prediction market trading.