Prediction Markets in the
United Kingdom
Your UK guide to prediction markets: which platforms accept UK users, how they sit relative to FCA and Gambling Commission rules, and how event contracts work.
Where UK law sits on prediction markets
Prediction markets sit between financial derivatives (FCA) and betting (Gambling Commission). No operator currently holds a UK licence, UK users typically access international platforms, with on-chain venues like Polymarket reachable via crypto wallets.
Compare platforms accessible to UK users
| Operator | Type | Settlement | Fees | Min deposit | KYC | Volume | |
|---|---|---|---|---|---|---|---|
| Polymarket | Crypto / On-chain | USDC on Polygon | ~2% (taker) | $1 | Light (geo-restricted) | $8B+ lifetime | Details → |
| Manifold Markets | Play-money | Mana (play-money) | None | Free | Email only | N/A (play-money) | Details → |
| Myriad Markets | Media-integrated | Multi-chain (USD1 stablecoin) | Variable | Varies | Light | $20M Series A (Feb 2026) | Details → |
Polymarket
USDC-settled on Polygon. Largest prediction market by volume.
Play-moneyManifold Markets
Free play-money social prediction platform with user-created markets.
Media-integratedMyriad Markets
Prediction markets embedded into publisher and media experiences. Trust Wallet integration, USD1 stablecoin settlement.
How prediction markets reached UK users
The UK has no domestic licensed prediction market operator. Historically, UK users participated through overseas platforms: Intrade in the 2000s, then Polymarket and Manifold once on-chain venues emerged. The Gambling Commission and Financial Conduct Authority have both signalled that event contracts could fall under their remits, but neither has issued a clear licensing pathway. The October 2025 announcement that Intercontinental Exchange would invest up to $2 billion in Polymarket has increased pressure on UK regulators to clarify how event contracts should be treated, but as of May 2026 nothing has formally changed and UK users remain in a grey zone, accessing offshore venues at their own risk.
How HMRC treats prediction market winnings
UK tax treatment of prediction markets depends on classification. If HMRC views winnings as gambling proceeds, they are tax-free for UK individuals: the long-standing UK rule that betting winnings are not taxable. If HMRC instead classifies event contracts as financial derivatives, gains could fall under capital gains tax (currently with an annual allowance of £3,000) or, for frequent traders, potentially income tax. There is no formal HMRC guidance specific to prediction markets yet. UK users should keep detailed records and consider speaking to a tax adviser, especially when trading sizable positions.
What UK traders should watch
Offshore status
Because no operator is licensed in the UK, the Gambling Commission's standard consumer protections (dispute resolution, deposit limits, self-exclusion via GAMSTOP) do not apply. If a platform refuses to pay out, you have no UK regulatory route to escalate.
Settling in USD or USDC
The major venues settle in US dollars or stablecoins. GBP/USD movements can erode profits or amplify losses on top of the underlying market outcome.
Self-help resources
If betting feels compulsive, GamCare offers free confidential support at 0808 8020 133, and GAMSTOP lets you self-exclude from licensed UK gambling sites: though offshore prediction market venues are not covered.
UK guides
Are Prediction Markets Legal in the UK?
FCA vs Gambling Commission, Gambling Act 2005 and the grey zone: the full legal picture.
TaxPrediction Market Tax in the UK
HMRC treatment: gambling winnings tax-free vs CGT on USDC. The £3,000 annual allowance.
ReviewPolymarket Review 2026 (UK)
The only major platform accessible in the UK: UK politics, fees, wallet. Rating 4.3/5.
ComparisonPrediction Markets vs Sports Betting
Polymarket vs Betfair Exchange/bet365: fees, coverage, UKGC regulation compared.
How-toHow to Trade on Polymarket from the UK
Coinbase UK or Kraken, MetaMask, Polygon: step-by-step for beginners.