Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Is Kalshi Legal in California) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Go to the live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Go to the live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Go to the live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Go to the live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Angela Rayner | 100% |
| Wes Streeting | 100% |
| Yvette Cooper | 100% |
| Shabana Mahmood | 100% |
| Pat McFadden | 100% |
| Bridget Phillipson | 100% |
| Ed Miliband | 100% |
| Lisa Nandy | 100% |
| Heidi Alexander | 100% |
| Jonathan Reynolds | 100% |
| Alan Campbell | 100% |
| John Healey | 100% |
| Louise Haigh | 100% |
| Catherine West | 5% |
| Rachel Reeves | 2% |
| David Lammy | 2% |
| Keir Starmer | 1% |
| Darren Jones | 1% |
| Steve Reed | 1% |
| James Murray | 1% |
| Dan Jarvis | 1% |
| Liz Kendall | 1% |
| Peter Kyle | 1% |
| Hilary Benn | 1% |
| Ian Murray | 1% |
| Jo Stevens | 1% |
| Jacqui Smith | 1% |
| Patrick Vallance | 1% |
| Jess Phillips | 1% |
Market context
Andy Burnham has officially appointed his first UK Cabinet, confirming John Healey as Chancellor, Wes Streeting as Defence Secretary, and Ed Miliband as Foreign Secretary, while retaining Shabana Mahmood at the Home Office and appointing Louise Haigh as Chancellor of the Duchy of Lancaster. This real-world event resolves the prediction market immediately, as the 100% crowd-implied probability reflects the confirmed list of ministers appointed by the Monarch within the required seven-day window following Burnham’s Prime Ministerial appointment.
Historical precedents for UK cabinet formations, such as Starmer’s 2024 reshuffle or Sunak’s 2022 appointments, show that initial cabinet lists are typically finalised within 48 hours of a new Prime Minister’s swearing-in, with probabilities converging to certainty once the official announcement is made. In this case, the live blog coverage from the New Statesman and ITV News confirms the full roster on 21 July 2026, eliminating ambiguity about who qualifies under the market’s definition of a cabinet minister.
Traders should monitor no further catalysts, as the settlement window closes on 31 December 2026 but the event has already occurred. Regulatory context remains relevant: German GlüStV implications may affect EU accessibility, while US CFTC reach could limit participation for US residents. The ‘no-KYC up to $1,500’ threshold means UK and non-US traders can access this market without identity verification, provided they stay under the limit, enhancing accessibility for those tracking Burnham’s cabinet composition without friction.
Methodology
This overview of Who will be in the Burnham cabinet? reviews the four comparable platforms from a regulatory perspective: which is accessible in your jurisdiction, where KYC kicks in, how the platform is classified by your country of residence. Live probability is the Polymarket mid; comparison columns show regulatory status, KYC thresholds and settlement options for each platform.
Resolution & payout
On Polymarket, resolution runs on-chain via UMA Optimistic Oracle. USDC payout is instant and automatic, with no KYC. Tax treatment depends on your jurisdiction — in the US, gains are usually ordinary income; in the UK, often capital gains. Consult a tax professional for your situation.
FAQ
- Is Polymarket legal in my country?
- Polymarket is geo-blocked in the US/UK/EU. Actual usage via the Polymarket interface is not possible there. The legal status itself varies — many countries treat prediction markets as a gray area. Is Kalshi Legal in California has a different geo footprint.
- How are winnings taxed?
- Tax treatment varies by jurisdiction. In most countries, prediction market gains are treated as ordinary income or capital gains. We cannot provide tax advice — consult a tax professional for your specific situation.
- What happens during a tax audit?
- You're responsible for documenting your trades. Is Kalshi Legal in California exports a full transaction history (CSV/PDF) for tax reporting. In an audit you'll need to present these documents.
- Are prediction markets gambling?
- Legally unclear in most jurisdictions. Some interpretations classify them as wagering (gambling regulation applies), others as derivatives (financial regulation applies). There's no global precedent specifically for on-chain prediction markets.
- Is there a withdrawal cap?
- No platform-side cap. You can withdraw any amount provided KYC is complete. SEPA bank withdrawals over €15,000 trigger additional anti-money-laundering checks (statutory obligation for all platforms).
Trade Who will be in the Burnham cabinet? on Is Kalshi Legal in California
Live order book, 0% fees, USDC settlement in seconds.
Open live market →