Casino bonus calculator
Casino Bonus UK: ⭐ Best Online Gambling Bonuses in May 2024
Only licensed and verified casino sites
British casinos offer great value welcome bonuses to new players when they first sign up. We have found the latest offers here to bring you the ultimate online casino bonus guide for May 2024!
»You will find the best no-deposit bonuses, deposit match deals, free spins, and exclusive promo codes to help you play with more. We have been researching online casino bonus sites, and comparing their offers, for over 10 years. Our experts test and review every single online casino site before we add them to our list, and we read all the fine print in the bonus T&Cs before we recommend them to you. Every casino we promote is fully licensed by the UK Gambling Commission, and has player protection in place including the use of the latest security software to safeguard your data and deposits.
Mr VegasCasino Of the Month
11 Bonus Spins
For Pink Elephants 2, with no wagering
£200 Bonus
This bonus is 100% up to £200
The 11 welcome spins are wager free so you can keep what you win!
#ad. New UK players only. 18+. BeGambleAware.org. Please play responsibly. Min deposit £10. Account balance is withdrawable at any time upon withdrawal, any remaining bonus spins forfeited: 7 days to activate the spins: Bonus spins expire 24 hours after activation. The deposit bonus will be paid out in 10% increments to your Main Account balance, and must be wagered 35x within 60 days from activation.
PartyCasino
50 Bonus Spins
For Luck O' The Irish, no wagering on winnings
#ad. New UK players only. 18+. BeGambleAware.org. Please play responsibly. 18+. UK & ROI only. New customers only. Deposit & spend £10, to get 50 Free Spins on selected slot games (Value £0.10 each). Use within 7 days. Restrictions and T&Cs apply.
Grosvenor CasinoRecommended Bonus
Deposit £20, Play with £50
#ad. New UK players only. 18+. BeGambleAware.org. Please play responsibly. Full Terms Apply New customers only. Min deposit £20 (Exc Paypal). Max bonus £30, bonus amount non-withdrawable, playable on selected games only. 30x wagering for £30 bonus. Expires within 30 days. Max win £2,000. T&Cs apply.
PlayFrank
50 Bonus Spins
For Starburst
£100 Bonus
This bonus is 100% up to £100
#ad. New UK players only. 18+. BeGambleAware.org. Please play responsibly. Full Terms Apply New players only. Min deposit £20. Bonuses to a max of £100+ 50 bonus spins. Wagering bonus 35x. Wagering bonus 35x. The winings must be wagered within 21 days. Bonus T&C apply.
The Grand Ivy Casino
25 Bonus Spins
For Starburst
£300 Bonus
This bonus is 100% up to £300
#ad. New UK players only. 18+. BeGambleAware.org. Please play responsibly. 18+. New players only. Min. deposit £20. Max. bonus bet is £5. Bonus spins on selected games only and must be used within 72 hours. Winnings from Bonus spins credited as bonus funds and capped at £100. Bonus funds expire in 30 days, unused bonus funds will be removed. Welcome Offer is 100% match up to £300 + 25 bonus spins on your 1st deposit. Bonus funds are separate to Cash funds, and are subject to 35x wagering the total bonus & cash. Only bonus funds count towards wagering contribution. Affordability checks apply. Terms apply. BeGambleAware.org.
Regal Wins
50 Bonus Spins
For Starburst, no wagering on winnings
£300 Bonus
This bonus is 100% up to £300
Use bonus code REGAL
#ad. New UK players only. 18+. BeGambleAware.org. Please play responsibly. Full Terms Apply 1st dep. of £20-£300, max bonus £300 on selected slots; 50x wagering on the sum of deposit & bonus applies. Max convertible 5x bonus amount received. Free Spins: Use code: REGAL when depositing in the cashier. 5 Batches of 10 FS Daily. Winnings capped at £10 per batch. T&C's Apply.
Lucky Vip
£100 Bonus
This bonus is 100% up to £100
+ up to £7 for live casino games
#ad. New UK players only. 18+. BeGambleAware.org. Please play responsibly. Full Terms Apply Min 1st dep(Exc PayPal)£20 for 100% match up to £100 Top slots. 40x wagering,MaxWins 5x+Guaranteed live bonus wheel up to £7. Live bonus & winnings are playable on selected live games 20x Wag & MaxWins x5 bonus. 18+. T&Cs apply.
FafabetNew Online Casino
£200 Bonus
This bonus is 100% up to £200
#ad. New UK players only. 18+. BeGambleAware.org. Please play responsibly. #ad. 18+. Gamble Responsibly. Gambleaware.org. This promotion is valid for new UK FafaCasino customers aged 18 years and over who have yet to avail of a FafaCasino Welcome Offer.Start from 00:01 on 07/11/2023.To activate this promotion you must deposit and stake a minimum of £20. You must place a minimum of 5 bet during the qualifying period and 4 of these bet must be at least half the value of your highest placed wager. Full Terms Apply.
BetMGM Casino
100 Bonus Spins
For Big Bass Splash
Get up to £200 in cash bonuses
No BetMGM Bonus Code Required
#ad. New UK players only. 18+. BeGambleAware.org. Please play responsibly. Deposit bonus: Opt in & deposit £10+ within 7 days & wager 35x to get up to £100. Wagering contributions vary. 7 day expiry. Receive 10 - 50 Free Spins worth 10p on Big Bass Splash. 3 day expiry. Eligible on 2 deposits. T&Cs Apply. New customers only.
Slots n'Play
25 Bonus Spins
For Big Bass Bonanza, with no wagering requirements
£100 Bonus
This bonus is 100% up to £100
#ad. New UK players only. 18+. BeGambleAware.org. Please play responsibly. Min. deposit: £20. Offer valid on the first deposit. Wagering Requirement: 35x. No wagering requirements for the extra spins. Spins are credited in Big Bass Bonanza. Spins expire after 24 hours. Promotion available for 72 hours. Terms and Conditions apply.
MrQRecommended Bonus
75 Bonus Spins
For Hex, No Wagering
Use bonus code 75HEX
#ad. New UK players only. 18+. BeGambleAware.org. Please play responsibly. First deposit only. Min deposit & spend £20. Max 75 spins on Hex at 10p per spin. Spins credited upon spend of £20. Spend requirement must be met within 12 hours of first deposit. Winnings are not capped.
Casumo
20 Bonus Spins
For Sahara Riches Cash Collect
£25 Bonus
This bonus is 100% up to £25
#ad. New UK players only. 18+. BeGambleAware.org. Please play responsibly. New customers. Opt-in required. 20 Bonus Spins on “Sahara Riches Cash Collect” at 10p per spin and 100% Deposit Bonus up to £25 on first deposit (payment method and play restrictions apply). Min. deposit £10. 30x wagering for Bonus Spins and Deposit Bonus (game weighting applies). Max. £5/spin or £0.50/line. 30 days expiry. Please gamble responsibly • BeGambleAware.org • T&Cs apply
Fortune Games
Win up to 500 Bonus Spins in 9 Pots of Gold
#ad. New UK players only. 18+. BeGambleAware.org. Please play responsibly. Full Terms Apply New players only, £10 min fund, Free spins won via mega reel, 65x bonus wagering requirements, max bonus conversion to real funds equal to lifetime deposits (up to £250)
WinlandiaExclusive Bonus
100 Bonus Spins
For Big Bass Bonanza
£50 Bonus
This bonus is 100% up to £50
#ad. New UK players only. 18+. BeGambleAware.org. Please play responsibly. First Deposit Only. Min. deposit: £20. Game: Pilgrim of Dead, Spin Value: £0.1. WR 60x free spin winnings amount (only Slots count) within 30 days. Max bet is 10% (min £0.10) of the free spin winnings amount or £5 (lowest amount applies). Spins must be used before using deposited funds. Bonuses do not prevent withdrawing deposit balance. First Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonus Policy applies. Bonus Policy applies.
Rialto Casino
200 Bonus Spins
For Fishin Frenzy Megaways
£300 Bonus
This bonus is 100% up to £100 + 50% up to £100 + 50% up to £100
#ad. New UK players only. 18+. BeGambleAware.org. Please play responsibly. Full Terms Apply Welcome bonus package on first 3 deposits 1st Dep. Min £20. 40x wagering (bonus & deposit). max bonus to cash 5x. 50 Free spins. 25x wagering. Max bonus to cash £25. Claim once. See full T&Cs for 2nd & 3rd Deposit offers: Full T&C apply.
Spin and Win
£250 Bonus
This bonus is 100% up to £250
#ad. New UK players only. 18+. BeGambleAware.org. Please play responsibly. Full Terms Apply Minimum 1st dep (Exc PayPal) of £10 to get £100% up to £250 on selected match slots & 100 Free Spins (FS) on Blueprint slots at 0.20P. Deposit Bonus Playable on selected Slots. 40x wagering requirement (Dep + Bonus) & MCR x5 for Bonus. FS and FS winnings are playable on Blueprint slots only, FS: 50xWR & Max win £50. 18+. Full T&C apply.
Rhino.bet
75 Bonus Spins
For Bonanza
Use bonus code casino75 Low wagering casino with only 10x play through on free spins winnings
#ad. New UK players only. 18+. BeGambleAware.org. Please play responsibly. This promotion is for new customers only. Customers must be 18+. Customers must be residents of the UK/IE. Sign Up using the promo code ‘casino75’ and make a minimum deposit of £25. Wager a minimum £25 on slots and receive 75 free spins on Bonanza.T&C's apply.
Kong CasinoNew Online Casino
50 Bonus Spins
For Big Bass Bonanza
£200 Bonus
This bonus is 100% up to £200
#ad. New UK players only. 18+. BeGambleAware.org. Please play responsibly. New players only, £10 min fund, £200 max matchup bonus, free spin wins credited as bonus, 65x wagering requirements, max bonus conversion to real funds equal to lifetime deposits (up to £250), full T&Cs apply.
LeoVegas
50 Bonus Spins
For Big Bass Splash, with no wagering
£100 Bonus
This bonus is 100% up to £50 + 100% up to £50
Winnings from the wager-free spins are instantly credited to the player’s real money balance that can be withdrawn.
#ad. New UK players only. 18+. BeGambleAware.org. Please play responsibly. Full Terms Apply New reg only. Opt in & deposit £10, £25 or £50 within 7 days & further 7 days to wager cash stakes 35x wagering to unlock reward (£50 on 2 deposits). 3 day expiry. Wagering/game contributions vary. 25 wager-free spins x10p to added to Big Bass Splash with each qualifying deposit, 3 day expiry.
Great Britain CasinoNew Online Casino
£200 Bonus
This bonus is 100% up to £200
#ad. New UK players only. 18+. BeGambleAware.org. Please play responsibly. Full Terms Apply New players only, £10 min fund, £200 max bonus, max bonus conversion equal to lifetime deposits (up to £250), 65x wagering requirements and full T&Cs apply.
Magical Vegas
50 Bonus Spins
For Starburst
£300 Bonus
This bonus is 100% up to £300
Use bonus code MAGICAL
#ad. New UK players only. 18+. BeGambleAware.org. Please play responsibly. Full Terms Apply 1st dep (Exc PayPal) of £20 with code Magical. Max bonus £300 on selected Match Slots, 40x wagering on the sum of deposit & bonus, 5x max conversion. 50 Free spins on Starburst Slots, spin value 0.20p. Free spins and Winnings playable on Starburst Slots only, 50x WR. 5x MCR. Full T&Cs apply.
Casimba
50 Bonus Spins
For Book of Dead
£250 Bonus
This bonus is 100% up to £200 + 50% up to £50
#ad. New UK players only. 18+. BeGambleAware.org. Please play responsibly. 18+. New players only. Min. deposit £20. Max. bonus bet is £5. Bonus spins on selected games only and must be used within 72 hours. Winnings from Bonus spins credited as bonus funds and capped at £100. Bonus funds expire in 30 days, unused bonus funds will be removed. Welcome Offer is 100% match up to £200 plus 50 bonus spins on your 1st deposit, 50% match up to £50 on your 2nd deposit. Bonus funds are separate to Cash funds, and are subject to 35x wagering the total bonus & cash. Only bonus funds count towards wagering contribution. Affordability checks apply. Terms apply. BeGambleAware.org.
Barz
50 Bonus Spins
For Starburst
£300 Bonus
This bonus is 100% up to £300
#ad. New UK players only. 18+. BeGambleAware.org. Please play responsibly. 18+. New Players Only. Min. deposit £20. Max. bonus bet is £5. Bonus spins on selected games only and must be used within 72 hours. Winnings from Bonus spins credited as bonus funds and capped at £20. Bonus funds expire in 30 days, unused bonus funds will be removed. Welcome Offer is 100% match up to £300 plus 50 bonus spins on your 1st deposit. Bonus funds are separate to Cash funds, and are subject to 40x wagering the total bonus & cash. Only bonus funds count towards wagering contribution. Terms apply. BeGambleAware.org.
The Sun Play
Win up to 500 Bonus Spins for Big Bass Splash
#ad. New UK players only. 18+. BeGambleAware.org. Please play responsibly. Full Terms Apply £10 min fund, Free spins won via mega reel, 65x bonus wagering requirements, max bonus conversion to real funds equal to lifetime deposits (up to £250), T&Cs apply
