# Online casinos, sports betting and prediction markets in the UK > SafeBet.ai's UK hub: independent rankings of the best legal online casinos and sports betting sites and betting exchanges, full reviews, and guides to the rules, fees and taxes. - URL: https://safebet.ai/uk/ - Markdown version: https://safebet.ai/uk/index.html.md - Last updated: 2026-10-22 (re-checked when an operator changes its terms or a regulator or court acts) - Author: SafeBet.ai Research Team (SafeBet.ai) - Editorial policy and advertiser disclosure: https://safebet.ai/editorial-policy/ ## The best online casinos in the UK (2026) BetMGM is the best online casino in the UK in 2026 for most players: its operator has no regulatory action on the Gambling Commission's register, it adds exclusive live tables to games from Evolution, NetEnt and Pragmatic Play, and it takes £10 deposits by card, PayPal, Apple Pay, Google Pay or bank. Sky Vegas pays out fastest, immediately by Pay by Bank and within 1 to 4 hours to Visa cards, and Midnite has the best-rated app. Every casino in our ranking holds a Gambling Commission licence. 1. [BetMGM](https://safebet.ai/uk/online-casinos/betmgm-review/) — Best overall (8.6/10) 2. [Sky Vegas](https://safebet.ai/uk/online-casinos/sky-vegas-review/) — Fastest payouts (8.5/10) 3. [LeoVegas](https://safebet.ai/uk/online-casinos/leovegas-review/) — Most slots (8.3/10) 4. [Midnite](https://safebet.ai/uk/online-casinos/midnite-review/) — Top-rated app (8.0/10) 5. [Jackpotjoy](https://safebet.ai/uk/online-casinos/jackpotjoy-review/) — Best for bingo (8.0/10) 6. [Virgin Games](https://safebet.ai/uk/online-casinos/virgin-games-review/) — Most-rated casino app (7.9/10) 7. [William Hill Vegas](https://safebet.ai/uk/online-casinos/william-hill-vegas-review/) — Fast card payouts (7.6/10) Full ranking: https://safebet.ai/uk/online-casinos/ - [Are online casinos legal in the UK? Licences, stake limits and the rules](https://safebet.ai/uk/online-casinos/are-online-casinos-legal/) - [How we rank online casinos in the UK](https://safebet.ai/uk/online-casinos/how-we-rank/) ## The best betting sites in the UK (2026) Sky Bet is the best betting site in the UK in 2026: no fine or settlement in the Gambling Commission's records since March 2021, BuildABet and cash out between legs, free in-play streams, Pay by Bank withdrawals that arrive immediately and apps rated 4.67 and 4.64. bet365 has the biggest app and the highest payout caps, Paddy Power the most open Best Odds Guaranteed in its 2025 terms, William Hill support around the clock, and Midnite eight esports titles. 1. [Sky Bet](https://safebet.ai/uk/sports-betting/sky-bet-review/) — Best overall (8.8/10) 2. [bet365](https://safebet.ai/uk/sports-betting/bet365-review/) — Biggest app & payout caps (8.6/10) 3. [Paddy Power](https://safebet.ai/uk/sports-betting/paddy-power-review/) — Best Odds Guaranteed (8.2/10) 4. [William Hill](https://safebet.ai/uk/sports-betting/william-hill-review/) — 24/7 support (8.1/10) 5. [Midnite](https://safebet.ai/uk/sports-betting/midnite-review/) — Esports betting (8.0/10) Full ranking: https://safebet.ai/uk/sports-betting/ - [Is sports betting legal in the UK? Licences, tax and the rules](https://safebet.ai/uk/sports-betting/is-sports-betting-legal/) - [How we rank betting sites in the UK](https://safebet.ai/uk/sports-betting/how-we-rank/) ## The best prediction markets in the UK (2026): licensed betting exchanges Smarkets is the best betting exchange in the UK in 2026: it publishes every charge, 2% commission on net winnings and no payment fees, processes withdrawals within 6 hours and has no regulatory action on the Gambling Commission's register. Betfair Exchange has the most users and markets, and Matchbook Predictions, with yes/no markets priced as percentages, works most like Polymarket. All three are licensed by the Gambling Commission. 1. [Smarkets](https://safebet.ai/uk/prediction-markets/smarkets-review/) — Best overall (8.7/10) 2. [Betfair Exchange](https://safebet.ai/uk/prediction-markets/betfair-exchange-review/) — Biggest exchange (8.6/10) 3. [Matchbook](https://safebet.ai/uk/prediction-markets/matchbook-review/) — Prediction-style markets (7.6/10) Full ranking: https://safebet.ai/uk/prediction-markets/ - [How we rank betting exchanges and prediction markets in the UK](https://safebet.ai/uk/prediction-markets/how-we-rank/) ## General guides - [Are prediction markets legal in the UK? Polymarket, Kalshi and betting exchanges](https://safebet.ai/uk/guides/are-prediction-markets-legal-in-the-uk/): Partly. Betting on elections and other events is legal in Great Britain with operators licensed by the Gambling Commission, including betting exchanges such as Betfair and Smarkets, where you trade against other users much as on a prediction market. Polymarket and Kalshi hold no British licence and block UK users. Event contracts sold as financial products fall under the FCA's ban on selling binary options to retail customers, in force since April 2, 2019. - [Is Polymarket legal in the UK?](https://safebet.ai/uk/guides/is-polymarket-legal-in-the-uk/): No. Polymarket holds no Gambling Commission licence, and its own geographic restrictions put the United Kingdom among the places where users can close existing positions but can't open new ones. Offering gambling to people in Great Britain without a licence is an offence, and so is advertising it. If you want to trade on elections or other events legally, licensed betting exchanges such as Betfair and Smarkets offer similar markets. - [Do you pay tax on gambling winnings in the UK?](https://safebet.ai/uk/guides/gambling-taxes-uk/): No. HMRC's position is that betting and gambling aren't a trade for the player, so winnings from casinos, bookmakers, exchanges and spread bets aren't taxed, and losses can't be deducted. Operators pay gambling duties instead: Remote Gaming Duty on online casino games rose from 21% to 40% of gaming profits on April 1, 2026, and a 25% rate of General Betting Duty applies to online bets, except on UK horse racing, from April 1, 2027. - [Where to get help for gambling problems in the UK](https://safebet.ai/uk/guides/gambling-help-uk/): Call the National Gambling Helpline, run by GamCare, on 0808 8020 133: it's free and open 24 hours a day, 7 days a week. To block yourself from every online gambling site licensed in Great Britain at once, register with GAMSTOP for 6 months, 1 year or 5 years; it's free and can't be cancelled early. In England you can also refer yourself to an NHS gambling clinic, and in a crisis Samaritans answer on 116 123. - [All UK guides](https://safebet.ai/uk/guides/)