Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Today) Pick polygram.ink (preferred broker) |
54% | 46% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
54% | 46% | 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 → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Farage 80%+ | 54% |
| Farage 70–80% | 38% |
| Farage 60–70% | 5% |
| Farage 50–60% | 2% |
| Farage 40–50% | 1% |
| Farage <40% | 0% |
Market context
Nigel Farage's announced resignation from the Clacton seat has triggered the by-election mechanism, though no formal writ for the poll has yet been issued as of late 2024. The 0% crowd probability reflects genuine uncertainty about whether Farage will actually contest the seat he has held since 2015, given his stated intention to step back from frontline politics. His previous electoral performance in Clacton saw him secure 59.3% of the vote in 2015 and 58.8% in 2019, establishing him as the dominant force in this Essex constituency.
Historical precedent suggests sitting MPs who announce resignation rarely reverse course to stand in their own by-elections, though Farage's political trajectory has defied conventional patterns throughout his career. The Reform UK leader's involvement in the 2024 general election campaign and his continued media prominence complicate straightforward predictions about his intentions. Comparable cases—such as MPs stepping down mid-term—typically see replacement candidates from the same party, though Farage's unique position as party leader adds complexity.
The critical catalyst remains the formal calling of the by-election and any public statement from Farage clarifying his candidacy status. Electoral Commission timelines and potential announcements from Reform UK regarding succession planning will shape trader expectations. The settlement window extends to June 2027, providing substantial time for circumstances to shift, though the absence of any recent reporting suggesting Farage intends to contest the seat underpins the current market pricing.
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 Prediction Today, 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.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- 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%.
Trade Clacton by-election: Nigel Farage Vote % on Prediction Today
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