10 Best Online Betting Sites UK

18+ New UK+ROI Customers only. Certain deposit methods & bet types excl. Min first £5 bet within 14 days of account reg at min odds 1/2 to get 6 x £5 free bets (selected sportsbook markets only, valid 7 days, stake not returned). Restrictions + T&Cs apply.

New customers: Deposit £10+ and place a sports bet within 7 days from registration. Get 4 x £10 Free Bets - 2 x Football Accas (4+) & 2 x Sports Multiples (2+), valid 7 days. Min odds apply. Excludes virtual sports, esports and non-UK/IE horse racing. Opt-in required. 18+. T&Cs apply.

*New customers only. Place a min £10 pre-event bet at min odds of 2.0. £40 worth of Free Bet Tokens awarded on bet settlement. 4 x £10 each with betting restrictions. 7 day expiry. Debit Card deposits only (exclusions apply). 18+ GambleAware.org. Bet The Responsible Way

New players. Min Dep £20 (Excl. PayPal & PaySafe). Max Bonus £40 on selected games & 100 Free Spins on Big Bass Splash. Wagering & max win apply.T&Cs apply.

Place a 5+ leg ACCA on any sport (total odds 3.00+, each leg 1.50+). If one leg loses, get 100% of your stake back as a free bet, up to £136. Qualifying bets must settle within 7 days of claiming. Free bet valid 7 days from issue, usable on any sport/market as a 3+ leg ACCA (total odds 3.00–21.00, each leg 1.50+)

New Customers. Min deposit £10 (Excl. PayPal & Paysafe). 3x £10 Free Bets credited within 72 hours of settlement. 100% odds boost token.T&Cs apply.

18+ New customers only. Place a £10 sportsbook bet at minimum odds 1/1 (2.0), within 14 days of sign-up and get £40 in Free Bets, valid for 7 days on selected bets. T&Cs apply. BeGambleAware.org

New UK customers. Place a £10 real money bet at min. 2.0 odds within 5 days of deposit. Get 4 x £10 Free Bets: 1 Single, 2 Accas & 1 Bet Builder (min. 3 selections each). Excludes cashout, E/W, Multis, Ineligible Markets & Odds Boosts. Credited after bet settlement. 7-day expiry. T&Cs apply. 18+ | GambleAware

18+ New verified customers only. Opt-in required. Deposit £10 and earn £1 of Free Bet value for every £1 staked on Bet Builders at combined odds of 2.0 (1/1) or greater. Min Reward: £1 Free Bet / Max Reward: £10 Free Bet. Cash in or claim within 48 hours of promo end. Free Bets expire 7 days after claim. GambleAware

18+. New UK customers (Excluding NI) only. Min Deposit £10. Min stake £10. Min odds Evs. Free bet applied on 1st settlement of any qualifying bet. 30 days to qualify. Free bets expire in 7 days. Cashed out/Free Bets won’t apply. Account & Payment method restrictions apply. 1 Free Bet offer per customer, household & IP Address only. T&Cs Apply

18+. New customers only. Registration required. Valid on your first combo bet (minimum 3 selections, minimum odds of 1.40 per selection, minimum bet of £5). If you lose, you receive a 100% refund up to £30 as Free Bet. Free bet valid for 7 days. The Free Bet can be used on a combo bet with at least 3 selections, minimum odds of 1.40 per selection and maximum odd of 6.00, all sports, excluding horse racing and virtual sports. Gambling can be addictive. Terms & Conditions apply. Please play responsibly. BeGambleAware.org

Choose bonus at signup. Deposit and get 100% bonus up to £50. Wager bonus 10x. Withdrawals void bonus. Valid 30 days. Deposit used 1st. Odds, bet & payment limits & T&Cs apply. 18+

18+ New UK + ROI customers only. Certain deposit methods & bet types excl. Min first £/€5 bet within 14 days of account reg at min odds 1/2 to get 6 x £/€5 free bets (selected sportsbook markets only, valid 7 days, stakes not returned). Restrictions + T&Cs apply.

New customers only. Register, deposit with a Debit Card, and place a first bet of £10+ at Evens (2.0)+ on Sports, to be settled within 7 days, to get £30 in Sports Free Bets and £20 in Bet Builder Free Bets within 24 hours of settlement. 7-day expiry. Eligibility & payment exclusions apply. Full T&Cs apply.

New players. Min Dep £20 (Excl. PayPal & PaySafe). Max Bonus £40 on selected games & 100 Free Spins on Big Bass Splash. Wagering & max win apply.T&Cs apply.

18+ New customers only. Wager £20 or more on Midnite Casino within 14 days of sign-up. Get 200 Free Spins to use on selected games, valued at 10p and valid for 7 days. T&Cs apply. BeGambleAware.org