Best Online Casino Bonuses

Best Casino promotions & spin offers 2021

Best Casino Bonuses Online

Free spins, bonus cash, free play – where do you begin? With hundreds of welcome offers available at top UK casinos, we've handpicked our selection of the most generous online casino bonuses and fairest terms and conditions to help make your decision easier. Get the most out of your first deposit by choosing the newest and best online casino promotions available in 2021.

Related categories: Casino Cashback | High Roller Casino BonusesFree Spins Offers

Best Casino Bonuses Online
Ad Disclosure
We rely on our relationships with partner sites to keep our service free. We receive compensation from many of the brands featured on Online Bingo UK which may influence how we display them.

However, we only recommend brands that we believe are safe, fair and trustworthy. The commission we receive does not affect the impartiality of our content.
1

100% Deposit
Match up to £300

Over 18s and new players only.

Sun Vegas is the newest online casino from the same company that bought you the fantastic Sun Bingo, offering a mobile friendly design and a name you can trust. Enjoy live casino games and hundreds of slots with a generous 100% match welcome bonus up to £300! 

Terms & Conditions: 100% bonus up to £300 on your first deposit · New Customers Only · Min Deposit £10 · 50x WR ·  Offer must be accepted within 72 hours. Bonus Valid for 30 Days · Max bet restrictions apply · Bonus can't be withdrawn. Bonus can only be spent on Slot Games · Skrill/Moneybookers and Neteller are not valid for this promo · Real money balance can always be withdrawn.

  • Min Deposit: -
  • Launched: 2018
2

Up to £100
Match Bonus

Over 18s and new players only.

888Casino has been dominating the online casino industry since 1997 and shows no signs of slowing down. Sign up today and be treated to £88, no deposit required. Plus, claim a 100% welcome bonus up to £100 and play the huge range of casino games including 888’s exclusive Millionaire Genie progressive jackpot.

Terms & Conditions: New players only • £20 min deposit • 100% up to £100 Bonus • Bonus wins are capped at £500 • To withdraw bonus & related wins, wager 30 x (bonus amount) within 90 days • Wagering req. vary by game • This offer may not be combined with any other offer • Deposit balance is available for withdrawal at any time. T&Cs apply.

  • Min Deposit: £20
  • Launched: 1997
3

£50 Bonus +
100 Free Spins

Over 18s and new players only.

As welcome bonuses go, FruitKings' £50 bonus and 100 free spins on Book of Dead gives new players more than enough extra to get them started! With hundreds of games to choose from, including all the top providers, this casino stands out as one of the kings.

Terms & Conditions: 18+. New players only. 100% bonus on first deposit up to £50 & 100 Bonus Spins (50 spins on day 1, 25 on day 2, 25 on day 3) for Book of Dead slot only. Min. First deposit of £20. Max bonus £50. Max bonus bet £5. Max bonus cash-out £250. 40x wagering requirements. Bonus expiry 30 days. Bonus spins expire after 48 hours. Game restrictions apply. Full T&Cs Apply.

  • Min Deposit: £20
  • Launched: 2019
4

100% Bonus +
20 Free Spins

Over 18s and new players only.

£50 bonus and 20 free spins? That's just peachy. Fans of online casino sites will find lots to love about Peachy Games, from its slick design ans impressive game selection to its generous welcome offer. With games from top providers like NetEnt, Blueprint games and many more, there's something for everyone.

Terms & Conditions: 18+. New players only. 100% bonus up to £50 on first deposit + 20 free spins on BerryBurst. Free spins are credited 24hours after first deposit as Peachy Coins which are redeemable in the Fruit Shop as free spins. Min first deposit £20. Max bonus £50. Max bonus bet £5. Max cash out £500. Wagering requirement of 40x to cash out. Games restrictions apply. Further terms apply.

  • Min Deposit: -
  • Launched: 2019
5

£50 Bonus +
50 Free Spins

Over 18s and new players only.

If Casushi's bright coloured design and japanese pop culture theme isn't appealing enough, then the welcome bonus that offers new players a £50 bonus and 50 free Book of Dead spins should be! With hundreds of games, including all your familiar favourites and new games you've yet to fall in love with, there's something for everyone.

Terms & Conditions: 18+ New players only. 100% bonus on first deposit up to £50 and 50 Bonus Spins (30 spins on day 1, 10 on day 2, 10 on day 3) for Rich Wilde and the Book of Dead slot only. Min first deposit of £20. Max bonus £50. Max bonus bet £5. Max bonus cash-out £250. 40x wagering requirements, Bonus expiry 30 days. Bonus spins expiry 2 days. Game restrictions apply. Full T&Cs Apply.

  • Min Deposit: £20
  • Launched: 2020
6

Deposit £10 +
Play with £20

Over 18s and new players only.

Lottomart's mobile app is a fresh and unique way to enjoy slot games on the go. With a wide variety of scratchcards and lotto betting too, there's plenty to enjoy here. New users can take advantage of Lottomarts welcome pack, where a £10 deposit will get you 100 free spins worth £20.

Terms & Conditions: New players only. Deposit £10 and buy the welcome bundle to recieve 100 Free Spins = 25x @ 20p Lara Croft Temples and Tombs free spins. 50x @ 20p Queen of the Crystal Rays free spins. 25x @ 20p Jungle Jim and the Lost Sphinx free spins. No wagering requirements. Full T&Cs apply.

  • Min Deposit: £10
  • Launched: 2017
7

825 bonus spins 
across your first 5 deposits

18+. New players only.

CasiGO is one of the latest online casinos launched by White Hat Gaming, who are known for creating some of the most immersive online gaming experiences. Join today to claim their newest welcome offer, a massive 825 bonus spins on the popular game Book of Dead, across your first five deposits!

Terms & Conditions: 18+. New players only. One Welcome Package per player. Max Bonus Bet £5. Get 3 Bonus spins for every £1 deposited up to 165 spins for each of your first 5 deposits. Min. deposit is £20. All spins are on Book of Dead only. Bonus funds must be used within 30 days ad bonus spins within 10 days. Spins winnings credited as a bonus and capped at an amount equivalent to the number of spins awarded. Bonus funds seperate to Cash funds, and are subject to 35x wagering and withdrawal requirements. Full T&C's apply.

  • Min Deposit: £20
  • Launched: 2020

With a huge 100 free spins and up to £50 bonus up for grabs this is one of the biggest and best casino bonuses available on the market. And as Karamba is one of the favourite online casinos , with everything from casino to slots available - there's no mistake that this is the best offer around!

Terms & Conditions: 18+, Terms and Conditions apply. New players only. 18+. Min deposit £10. Wagering requirement apply 35x. Offer valid for 72hr. 100 spins includes 3 deposit. Full terms and conditions apply.

  • Min Deposit: £10
  • Launched: 2005

At Captain Spins, players are instantly met by Captain himself, introducing a spin-tastic welcome offer. New players can claim 520 bonus spins to play on one of the most popular slot games of 2021, Book of Dead.

Terms & Conditions: 18+. New players only. One welcome package per player. Max bonus bet £5, Min deposit £20 1st deposit: get 100 bonus spins, 2nd Deposit: get 120 bonus spins, 3rd deposit: get 140 bonus spins, 4th deposit: get 160 bonus spins. All spins are on slot game Book of Dead only. Bonus funds must be used within 30 days and bonus spins within 10 days. Max winnings from bonus spins are equivalent to the number of spins awarded. Spins winnings credited as bonus. Bonus funds separate to Cash funds, and are subject to 35x wagering and withdrawal requirements. Full Terms Apply.

  • Min Deposit: £20
  • Launched: 2019

Jonny Jackpot is one of the latest online casinos by White Hat Gaming. Since its launch, the casino has been turning heads with its juicy promotions and extensive games library including a slot-tastic welcome bonus, of 500 Bonus Spins to play on Book of Dead.

Terms & Conditions: 18+. New players only. One welcome package per player. Max bonus bet £5, Min deposit £20, 1​st deposit: get 100 bonus spins, 2​nd​ Deposit: get 75 bonus spins, 3​rd​ deposit: get 125 bonus spins, 4​th deposit: get 50 bonus spins, 5​th​ deposit: get 150 bonus spins. All spins are on slot game Book of Dead only. Bonus funds must be used within 30 days and bonus spins within 10 days. Spins winnings credited as bonus. ​Max winnings from bonus spins are equivalent to the number of spins awarded. ​Bonus funds separate to Cash funds, and are subject to 35x wagering and withdrawal requirements. Terms Apply.

  • Min Deposit: £20
  • Launched: 2018
11

150 Free Spins
+ £150 Bonus

Over 18s and new players only.

New to the market, Play Magical adds a sprinkle of magic to your gameplay! Hosting a huge selection of the best slot games, why not see if Play Magical is going to be your new favourite site. And with a huge welcome bonus of £150 welcome bonus and 150 free spins you'll be spoilt.

Terms & Conditions: First 3 Deposits only. Min deposit £10 1st and 2nd deposit, min £20 3rd. Max cumulative bonus £150 and 150 spins. Bonus match amount varies per deposit. Spins awarded on one of four chosen games. 50x wagering on Deposit + Bonus, 50x on bonus spins. 10x max bonus conversion or £5,000, whichever is lower. £5 max bonus stake. Full T&Cs Apply.

  • Min Deposit: £20
  • Launched: 2019

Duelz Casino are offering a particularly eye-catching welcome bonus to new players, receive a 100% bonus of up to £100, as well as 100 free spins on Book of Dead on your first deposit. They also have other promotions up for grabs, including the Mega Moolah Jackpot, one of the biggest online jackpots in the world, and the opportunity to get 10% cashback every week

Terms & Conditions: 18+ new players only. Minimum deposit: £20. Maximum £100 bonus. Max bet with an active bonus: £2. Wagering requirement 100% match bonus: 30 times sum of deposit + bonus. Max redeemable from welcome bonus: £500. 100 Free Spins are given out 20 per day on Book of Dead for 5 days in a row, log in each day is required. Max Free Spins winnings: £100. Winnings from Free Spins are credited as bonus money with a wagering requirement of 45 times. Free Spins expire after 3 days. Full T&C's apply.

  • Min Deposit: £20
  • Launched: 2021
13

Spin the Wheel
Win 500 Free Spins!

Over 18s and new players only.

bgo is one of Blueprint's biggest and most popular casino sites. Sign up to bgo casino and deposit £10 to win up to 500 free spins by spinning the Mega Wheel!

Terms & Conditions: UK only. Win up to 500 Free Spins from Mega Wheel on 1st deposit. 24-hour expiry. Max bet £2.50, max spins win £8 per 10 spins, max Bonus win £150, selected games & 65x wagering on winnings. No Neteller/Skrill. Full T&Cs apply.

  • Min Deposit: £10
  • Launched: 2012
14

100% Bonus +
50 Free Spins

Over 18s and new players only.

Now available in the UK, new players depositing at NY Spins for the first time can take advantage of a 100% deposit match up to £50. This gives new players up to £100 to play with for only depositing £50, plus 50 free spins on Book of Dead that come with no wagering requirements!

If you continue to play you can collect points that allow you to unlock bonuses, such as free spins and bonus funds.

Terms & Conditions: 18+ new players only. Maximum bonus: £50. Minimum deposit: £20. Max bet with active bonus: £2. Wagering requirement 100% match bonus: 30 times sum of deposit + bonus. Free Spins winnings come as cash. Some games may not be played with an active bonus. Games may contribute differently when wagering a bonus.

  • Min Deposit: £20
  • Launched: 2017
15

£50 Bonus +
50 Free Spins

Over 18s and new players only.

After taking Germany by storm, Voodoo Dreams has finally launched in the UK. The welcome offer includes a 100% first deposit bonus up to £50 and 50 free spins on Book of the Dead. With an attractive VIP scheme too, you won't need voodoo magic to make you sign up and start playing!

Terms & Conditions: 18+ new players only. Maximum bonus: £50. Minimum deposit: £20. Max bet with active bonus: £2. Wagering requirement 100% match bonus: 30 times sum of deposit + bonus. Winnings from Free Spins come as cash. Some games may not be played with an active bonus. Games may contribute differently when wagering a bonus.

  • Min Deposit: £10
  • Launched: 2016
16
93%
93%

Up to 50 Wager
Free Spins

Over 18s and new players only.

Join the UK’s fairest casino and enjoy zero wagering requirements and uncapped bonus winnings. PlayOJO is offering up to 50 free spins on Book of Dead on your first deposit with all winnings paid in real cash. With cashback on every spin, a dedicated loyalty plan and an exclusive reward wheel, PlayOJO is heaving with casino bonuses.

Terms & Conditions: 1 free spin credited for every £1 deposit. Up to 50 free spins valued at £0.10 each on Book of Dead. Min. deposit £10. First time depositors only. Rewards and game play policy applies.

  • Min Deposit: £10
  • Launched: 2017