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.

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

18+. New customers only. Place a minimum £40 bet on any selection with minimum odds of Evens (2.00) and receive a 4x£5 Free Bets. Free bets expire after 24 hours. BeGambleAware.org. T&Cs & Maximum Pay-Outs Apply. #ad

18+ | New UK customers only. Place a £20+ bet with minimum 3 legs, min 2/1 and receive a £10 Free Bet. The Free Bet will be credited once your qualifying bet settles. Free Bet expires 7 days after being awarded. BeGambleAware.org | T&Cs & Minimum Payouts apply.

New customers only. Min £20 bet at minimum odds 1/1 (2.00). Max reward: Four £10 Bet Builder Free Bets. Each Bet Builder Free Bet requires a minimum of 4 legs at combined minimum odds of 3/1 (4.00). Free Bets expire 7 days after credit. 18+. Full T&Cs apply.

*New members only. £10+ bet on sports (ex. Virtuals) 1.5 min odds, settled within 14 days. Free Bets: accept in 7 days, valid 7 days: £30 use on sportsbook. £10 on Bet Builder. Stake not returned. T&Cs + deposit exclusions apply. Bet Responsibly. GambleAware.org. 18+

*New members only. Must sign up via this offer link. £10 min bet on sportsbook (ex. virtual) 1.5 min odds, settled in 14 days of sign-up. Win part E/W bets. Free Bets £30 use on sportsbook, £10 on Bet Builder. Stake not returned. T&Cs and deposit exclusions 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 customers only. Bets placed on sports at odds of 2.50 or more to qualify. Bet must be placed 25 hours within registration. £25 free bets must be wagered on sports. Full terms below. Gambling can be addictive, play responsibly 18+

New customers only. Min £20 bet at minimum odds 1/1 (2.00). Max reward: Four £10 Bet Builder Free Bets. Each Bet Builder Free Bet requires a minimum of 4 legs at combined minimum odds of 3/1 (4.0). Free Bets expire 7 days after credit. 18+. Full 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. 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 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. 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

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+

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+)

18+. New Players Only. Min deposit £20. Offer is a £30 free bet when you bet £30 in one single transaction, on any sports at odds of 2.00 or higher. Free bet credited upon qualifying bet settlement. Free Bet can be redeemed on any sports market and used in one single transaction. Winnings credited as cash and immediately withdrawable. Free bet expires 7 days after being credited. Free Bets non withdrawable. Free Bet stakes not included in returns. Affordability checks apply. Terms apply. Please gamble responsibly. GambleAware.org

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.

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

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.