Prediction Markets UK: What You Can Actually Use
If you are in the UK and want to trade on real-world outcomes, the practical question is simple: which platforms accept you, and are they lawful? This guide walks through the UK legal position, how event contracts work, your real options, and how winnings are treated.
Is it legal in the UK?
Trading on event outcomes is legal in the UK through a UKGC-licensed operator. The Gambling Commission classifies this activity as gambling, so the protections — and the licence requirement — are the same as for betting. Unlicensed offshore prediction markets typically geoblock the UK; using one is not an option we endorse or explain how to do.
How event contracts work
You buy a contract on an outcome — say, "Bank of England holds rates in March". The price moves with the crowd's confidence and acts as a live probability. If you are right at resolution, the contract pays out; if not, it expires worthless. On an exchange you can also trade against other users rather than a bookmaker.
Your real UK options
- Smarkets and Betfair Exchange — UKGC-licensed, GBP, real money.
- Metaculus and Good Judgment Open — forecasting for accuracy and reputation, no cash risk.
- Research-only: Polymarket and Kalshi prices are worth reading even though you cannot trade them from the UK.
Explore a disclosed-owned alternative: PolyGram
FAQ
Which prediction markets accept UK users?
UKGC-licensed betting exchanges like Smarkets and Betfair accept UK users for real-money event markets. Metaculus and Good Judgment Open are usable in the UK as no-money forecasting platforms.
How do I start safely in the UK?
Pick a UKGC-licensed exchange, verify your identity (KYC is required by law), set deposit limits, and only stake money you can afford to lose. Use GamCare or BeGambleAware if it stops being fun.
Do I pay tax on UK prediction-market profits?
Gambling-type winnings are generally not taxed for UK individuals, but profits routed through crypto or treated as trading can be different. Confirm with current HMRC guidance or a qualified adviser.
Are these markets the same as betting?
Functionally similar — the UKGC regulates them as gambling. We use forecasting language, but the consumer protections and risks are those of regulated gambling.