Best UK Online Casino Welcome Bonus Offers in May 2024

270 Deals available in the UK

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Our dedicated editorial team evaluates every online casino prior to assigning a rating. These evaluations are grounded in a rigorous scoring methodology that encompasses factors such as trustworthiness, overall gambling experience, fee structures, customer support quality, and various other critical aspects.

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Receive Up to 500 of Spins on Release the Kraken as Your Welcome Promotion

Bonus type: Free Spins, Sign Up, Welcome Bonus, First Deposit Bonus

Min Deposit: £10

Wagering: 65x

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#Ad, 18+, BeGambleAware | NEW PLAYERS ONLY, MIN DEPOSIT £10.00, MAX BONUS EQUAL TO LIFETIME DEPOSITS (UP TO £250.00), 65X WAGERING REQUIREMENTS AND FULL T&CS APPLY HERE Full Bonus T&C

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Collect Up to £6,000 in Casino Bonuses from the Welcome Offer

Bonus type: Free Spins, Welcome Bonus

Min Deposit: £10

Wagering: 65x

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#Ad, 18+, BeGambleAware | New Players only. 1st, 2nd and 3rd ever deposit: spin multiplier wheel and win a Matchup Bonus up to 10X your deposit amount (£2,000 max bonus), £10 min fund for all 3 offers, max bonus conversion equal to lifetime deposits (up to £250), 65x WAGERING REQUIREMENTS Full Bonus T&C

Join the spy mission together with other spies at Spy Slots! Register and make your first deposit of £10+, this will award you with a 10x deposit bonus up to £6,000! And if you won't be able to get it all in a single top-up, you can receive it through your first three deposits, as long as they meet all the requirements!

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Begin Playing with Up to 500 First Deposit “Starburst” Bonus Rounds

Bonus type: Free Spins, Welcome Bonus, First Deposit Bonus

Min Deposit: £10

Wagering: 65x

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#Ad, 18+, BeGambleAware | New players only, £10 min fund, max bonus conversion equal to lifetime deposits (up to £250) to real funds, 65x wagering requirements Full Bonus T&C

1. Sign Up: click on "Join Now" on the website for instructions. 2. Deposit: fill up your balance for the first time. 3. Spin: use the Pinball Slots' Welcome Bonus mega reel to win 100s of more rounds on Starburst Game!

Claim Up to 500 Mustang Gold Extra Rounds from the Welcome Bonus Loot Chest

Bonus type: Free Spins, Welcome Bonus

Min Deposit: £10

Wagering: 65x

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#Ad, 18+, BeGambleAware | NEW PLAYERS ONLY, MIN DEPOSIT £10.00, £8.00 MAX WIN PER 10 SPINS, MAX BONUS EQUAL TO LIFETIME DEPOSITS (UP TO £250.00), 65X WAGERING REQUIREMENTS AND FULL T&CS APPLY HERE Full Bonus T&C

I. Sign up: register on the casino website. II. Deposit: fill up for £10 or more using the Wild West Wins Welcome Bonus. III. Play: enjoy the action with 100s of free rounds on Mustang Gold from the loot chest.

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Use the Welcome Deal to Roll the Mega Reel and Claim 500 Bonus Spins

Bonus type: Free Spins, Sign Up, Welcome Bonus, Registration, First Deposit Bonus

Min Deposit: £10

Wagering: 65x

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#Ad, 18+, BeGambleAware | NEW PLAYERS ONLY, MIN DEPOSIT £10, £8 MAX WIN PER 10 SPINS, MAX BONUS EQUAL TO LIFETIME DEPOSITS (UP TO £250), 65X WAGERING REQUIREMENTS AND FULL T&CS APPLY HERE Full Bonus T&C

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Join Bingo Games and Get Amazon Voucher as Welcome Bonus

Bonus type: Free Spins, Sign Up, Welcome Bonus, Registration

Min Deposit: £10

Wagering: 65x

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#Ad, 18+, BeGambleAware | New players only, min deposit £10, £8 max win per 10 spins, max bonus conversion equal to lifetime deposits (up to £250), 65X wagering requirements Full Bonus T&C

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Mirror Bingo Welcome Offer: Deposit £10 and Claim 500 Free Spins

Bonus type: Free Spins, Sign Up, Welcome Bonus, Registration, First Deposit Bonus

Min Deposit: £10

Wagering: 65x

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Visit the casino web page, click on "Play Now" and follow the upcoming instructions to register. Now deposit £10 or more to activate the Mirror Bingo Welcome Offer and claim up to 500 worth of 9 Pots of Gold slot rounds.

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Grab Your 50% up to £250 Casino Welcome Bonus Now!

Bonus type: Welcome Bonus, Highroller Bonus

Min Deposit: £500

Wagering: 50x

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#Ad, 18+, BeGambleAware | New bettors; Use code CASINO10; Wager bonus 50x to release bonus winnings; Valid 30 days; Stake contribution and payment method exclusions apply. Full Bonus T&C

Step into the online gaming arena with our special casino welcome bonus offer! Boost your initial plays with an attractive 50% bonus, up to a limit of £250. This promotion is ideal for new casino players eager to expand their play. Here's how you can claim this remarkable offer:

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Make a Qualifying Deposit: For your first deposit, use the bonus code CASINO10. Note: Deposits via Skrill or Neteller are not eligible.
Receive Your Bonus: Enjoy a 50% bonus up to £250. To get the maximum £250 bonus, your deposit should be £500 or more.
Fulfill Wagering Requirements: Wager the bonus amount 50 times on eligible games within a 30-day period.

Slots contribute 100% towards meeting these requirements, whereas table and live games have a 10% contribution. Be aware that bets on a single game round cannot exceed 50% of the matched bonus. The bonus amount is for betting purposes only, and once wagering requirements are met, it will be deducted, leaving the remaining winnings as cash.

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Claim the Welcome Bonus Wheel Spin for Up to 500 Free Rounds Extra

Bonus type: Free Spins, Sign Up, Welcome Bonus, Registration, First Deposit Bonus

Min Deposit: £10

Wagering: 65x

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I. Register: sign up on the casino website. II. Make a First Deposit of at least £10 to qualify for the Free Spins Bingo Welcome Bonus. III. Play: enjoy the action with a Mega Wheel turn of 100s of Sweet Bonanza rounds for grabs.

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Use the Welcome Bonus for a Chance to Win 500 “Starburst” FS Right After Joining

Bonus type: Free Spins, Sign Up, Welcome Bonus, Registration, First Deposit Bonus

Min Deposit: £10

Wagering: 65x

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Earn two checkmarks for the third to be a Mega Reel spin! Checkmark #1: sign up. Checkmark #2: make a first deposit of at least £10 using this promotion. Checkmark #3: spin and win huge!

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Bonus type: Free Spins, Sign Up, Welcome Bonus, Registration, First Deposit Bonus

Min Deposit: £10

Wagering: 65x

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Following these steps, you won't miss the bonus! Start by visiting the website, where you should tap on "Log In" and register following the instructions. Make a First Deposit of at least £10 using this promotion and spin the Mega Reel for huge profits!

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Bonus type: Free Spins, Sign Up, Welcome Bonus, Registration, First Deposit Bonus

Min Deposit: £10

Wagering: 65x

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#Ad, 18+, BeGambleAware | NEW PLAYERS ONLY, MIN DEPOSIT £10.00, MAX BONUS EQUAL TO LIFETIME DEPOSITS (UP TO £250.00), 65X WAGERING REQUIREMENTS AND FULL T&CS APPLY HERE Full Bonus T&C

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Bonus type: Sign Up, Welcome Bonus, Registration, First Deposit Bonus

Min Deposit: £10

Wagering: 65x

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#Ad, 18+, BeGambleAware | New players only, £10 min fund, £1,000 max bonus, max bonus conversion equal to lifetime deposits (up to £250), 65x wagering requirements and full T&Cs apply. Full Bonus T&C

Begin your brand new journey in the Slots Kingdom with a nice reward from the King! Sign-up and make a First Deposit of £10 or more to qualify for a spin on a generous prize wheel, the Mega Reel! You can win a Match Bonus between 100% and 1,000%, and it can pay you out up to £1,000 worth of casino bonuses!

Claim the Welcome Bonus Wheel Spin and Receive Up to 500 Rounds

Bonus type: Free Spins, Sign Up, Welcome Bonus, Registration, First Deposit Bonus

Min Deposit: £10

Wagering: 65x

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I. Register: sign up to join the community. II. Make a First Deposit of at least £10 to claim the New Spins Casino Welcome Bonus. III. Play: enjoy the Mega Reel Wheel with 50-100 worth of Fluffy Favorites spins up for grabs.

Get Ready To Enjoy Griffon Casino First Deposit Bonus Of 50 Free Spins

Bonus type: Free Spins, Sign Up, Welcome Bonus, Registration, First Deposit Bonus

Min Deposit: £20

Wagering: 35x

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#Ad, 18+, BeGambleAware | New players only. 18+. Minimum deposit amount £20. Maximum wins from extra spins £100. Wagering requirements applied on all bonuses x35. 50 extra spins will be credited on first deposit. 50 extra spins on second deposit and 5...0 extra spins on third deposit. Full Bonus T&C

Griffon is incredibly generous with gold and you get to enjoy a welcome bonus of 50 FREE spins on Book of Dead for making your first deposit of £20 after you register.

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High Roller Casino Bonus

Claim Bonus Funds from the 100% Welcome Bonus of Up to £560 Total

Bonus type: Sign Up, Welcome Bonus, Registration, Casino Match Bonus, Highroller Bonus, First Deposit Bonus

Min Deposit: £10

Wagering: 200x

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#Ad, 18+, BeGambleAware | Welcome offer is for new customers only. The minimum deposit is £10. A two hundred times wagering requirement applies on all bonuses and certain games contribute a different percentage to the wagering requirements. Full Bonus T&C

Making money is made as easy as the ABC! Follow 3 simple steps for proof! A. Visit the website grandhotelcasino.co.uk and click "Play Here!". B. Follow the instructions to register. C. Make your First Deposit and crush the tables with a 100% bonus of up to £100! And that's only the tip of the iceberg! Deposit for the 2nd time to claim a 50% match capped at £150 and make your Third Deposit to receive 30% up to £150. Finally, boost your bonus funds even further with 4th Deposit Bonus of 20% maxed at £160!

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Bonus type: Welcome Bonus

Min Deposit: £20

Wagering: 50x

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Visit the website, click on "Play Now" and follow the upcoming instructions to register. Now deposit to activate the Britainbet Casino Welcome Bonus. From it, you'll receive a 200% addition to funds up to £50.

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Bonus type: Welcome Bonus, Casino Match Bonus

Min Deposit: £10

Wagering: 65x

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#Ad, 18+, BeGambleAware | NEW PLAYERS ONLY, £10.00, MIN FUND, £1,000 MAX BONUS, MAX BONUS CONVERSION EQUAL TO LIFETIME DEPOSITS (UP TO £250.00), 65X WAGERING REQUIREMENTS. Full Bonus T&C

I. Register: sign up on the casino web page. II. Deposit: fill up for £10 or more using Eagle Spins Welcome Bonus. III. Enjoy: play the games with up to £1,000 extra funds from the wheel.

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Get 300% Bonus Money Up to £1500 from the Welcome Bonus Pack

Bonus type: Sign Up, Welcome Bonus, Registration, Highroller Bonus, First Deposit Bonus

Min Deposit: £10

Wagering: 200x

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#Ad, 18+, BeGambleAware | The minimum deposit is £10. A two hundred times wagering requirement applies on all bonuses and certain games contribute a different percentage to the wagering requirement. Full Bonus T&C

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Start Playing with the Welcome Bonus of 100 Free Spins on Book of Dead Right Away

Bonus type: Free Spins, Sign Up, Welcome Bonus, Registration, First Deposit Bonus

Min Deposit: £10

Wagering: 60x

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#Ad, 18+, BeGambleAware | Automatically credited upon deposit. Cancellation can be requested. First Deposit Only. Min. deposit: £10. Game: Book of Dead, Spin Value: £0.1. WR 60x free spin winnings amount (only Slots count) within 30 days. Max bet is 1...0% (min £0.10) of the free spin winnings amount or £5 (lowest amount applies). Spins must be used before using deposited funds. Welcome Bonus can only be claimed once every 72 hours across all Casinos. Full Bonus T&C

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Bonus type: Free Spins, Sign Up, Welcome Bonus, Registration, First Deposit Bonus

Min Deposit: £10

Wagering: 60x

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Bonus type: Welcome Bonus

Min Deposit: £10

Wagering: 65x

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Bonus type: Welcome Bonus

Min Deposit: £10

Wagering: 65x

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Bonus type: Free Spins, Sign Up, Welcome Bonus, Registration, Casino Match Bonus, First Deposit Bonus

Min Deposit: £10

Wagering: 65x

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Bonus for High Rollers

Join the Games with a 250% Welcome Bonus Up To £1,000 Out of the 5-Deposit Package

Bonus type: Sign Up, Welcome Bonus, Registration, Highroller Bonus, First Deposit Bonus

Min Deposit: £10

Wagering: 200x

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#Ad, 18+, BeGambleAware | Welcome Offer is for New Customers Only The minimum deposit is £10 for all deposits. This offer may not be used in conjunction with any other offer(s). A two hundred times wagering requirement applies on all bonuses. Certain ...games contribute a different percentage to the wagering requirement and standard terms and conditions apply. Full Bonus T&C

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UK's Top Online Casino Welcome Bonuses