10 Best Online Betting Sites UK

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 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 customers. From 10/09/26. Certain dep methods excl. Dep & Bet £10+ at min odds 1/2 within 14 days of account reg. for 5 x £10 Football Bet Builder free bets released in stages (1 per day over 5 days): after qualifying bet settlement, 24, 48, 72, 96 hrs after qualification. Free bets valid 7 days from individual release, stake not returned, no cash out. Restrictions + T&Cs apply.

18+ New customers only. Place a £10+ bet at min odds 1/1 (2.0) within 14 days of sign-up. Get £30 in Free Bets, valid for 7 days on selected bets only. Free stake not returned with winnings. T&Cs apply. BeGambleAware.org

New customers only. £10 in real money. Bets placed on sports at odds of 2.00 or more to qualify. Bets must be placed 24 hours within registration. £10 free bets must be wagered on sports. Full terms below. Gambling can be addictive, play responsibly, 18+

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 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 customers only. Min £20 combo bet at minimum odds of 3/1 (4.0). Horse Racing and Esoccer markets excluded. Reward: Two £10 Free Bets awarded only if the qualifying cash combo bet wins. Each Free Bet requires minimum odds of 1/1 (2.0). Horse Racing and Esoccer markets excluded. Free Bets expire 7 days after credit. 18+. Full T&Cs apply. GambleAware.org

18+. New customers only. Opt in required. Minimum bet of £20 on any selections. Min odds of evens (2.00). Pre-game only. Free bet awarded upon settlement. Free bet split into 4 x £5 Free Bets. Free bet expiry 24 hours. Other free bet terms apply. Maximum pay-outs apply. GamCare.org.uk | UK only. Full T&Cs apply. #ad

18+ New UK Customers Only. Bet £10+ on any sportsbook markets at odds of evens (2.00) or greater. No cash out. Get 50% back of your first day’s losses (from first bet settlement until 23:59) as a Free Bet up to £50, valid for 7 days. Min. 3 bets on different events required, with 2 bets being at least 50% of your largest stake. Place at least 1 bet of £10+ at odds 2.00+ to receive a £5 Free Bet even if your account is up or losses are under £5. T&Cs Apply. GambleAware.org

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+. UK/IRE online only. Min odds 3/1. Max stake £/€20. Available on one bet per selected event. 50% boost applied after all selections are settled. Max boost payout £/€1,000. Offer excludes multiple bets. Free, void, or cashed out bets do not qualify. T&Cs apply.

18+ | GambleAware.org. New GB customers only. Opt in and play within 7 days of registration. Deposit & stake £20 on Slots to qualify for 200 x £0.10 Free Spins on Fishin' Frenzy Big Catch. Claim Spins within 48 hours of qualifying. Free Spins expire 30 days after claiming. 10x wagering on Free Spins winnings. Debit card or instant bank transfer only. Geographical restrictions and 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

18+. Welcome offer. Min Dep £20. 10x wager/7days. Max bet £5. Max wins apply. £0.1 per spin. 65 spins added immediately, 65 -24h later. Terms & Conditions Apply