Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Who Will Win) Pick polygram.ink (preferred broker) |
6% | 94% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
6% | 94% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Market context
Donald Trump leaving the presidency before the end of 2026 is priced as a **7% YES**, so the favourite is clearly **No** and the market is treating early departure as an underdog event. For a yes to land, the contract needs a permanent exit: resignation, death, or removal, not a temporary transfer of power. That makes the bar much higher than ordinary political turbulence, and the consensus view is that the most likely path remains a full term through to January 2029.[1][14]
Historically, presidential exits before term end are rare, which is why these markets usually sit in the low single digits unless there is an acute personal, legal, or health shock. The closest comparable cases are the small number of modern resignation or forced-exit episodes, and even those required extraordinary circumstances rather than routine midterm pressure. In handicapping terms, the current price leaves the underdog side needing a genuine break in the pattern, while the value case on **No** is that institutions and procedure make removal difficult absent a major crisis.[1][4]
The near-term catalysts are not polls alone but any sign of resignation talk, serious health news, or an actual removal process moving beyond rhetoric. Carville has again predicted Trump could “walk away” after a poor midterm showing, but that is commentary rather than a procedural trigger, and traders should separate headline noise from events that can settle the market.[2][12] Watch for any formal announcement, court or congressional developments, and the post-midterm political environment later in 2026; until then, the contrarian angle is that the market is already close to a floor, so fresh evidence would need to be unusually concrete to justify buying YES.[14]
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Who Will Win, which mirrors the Polymarket order book directly.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
UK Frequently Asked Questions
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- Is Polymarket legal in the UK?
- Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
- Do I pay tax on prediction market profits in the UK?
- UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
- How do I deposit on Polymarket from the UK?
- UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
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