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The Top 10 UK Online Casino Bonuses

Choose Your Online Casino Welcome Bonus

If you've been searching for top online casino bonuses in the UK, you're in the right place.
Our chart provides you with rankings, ratings and reviews based on our research and industry expertise,
along with bonus information, to help you compare and find the best online casino for you.

All sites are:
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secure & trusted
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casino site
welcome bonus
rating
our score
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Min. £10 Deposit
Get a 150% Bonus
up to £150
+25 Super Spins!
Views (1,397)
9.9
Our Score
Get BonusVisit 32Red

18+. BeGambleAware.org. New accounts only. Min. £10 deposit, debit card only. Up to 50x wagering, game contributions vary, max. stake applies, 7 day expiry. See full terms

Player Favourite
Get 100% Bonus
+50 Free Spins
Views (385)
9.8
Our Score

18+. New UK customers only. Opt in required. Bonus can be activated only once. Minimal deposit required of £10. Max bonus sum = £150. Bonus money must be wagered 40x. Winnings from bonus spins must be wagered x50. 50 Spins will be credited automatically if first deposit was made in 48 hours after registration. This bonus is available till 30.09.21. General T&C apply.

Deposit £10
Get £40
+100 Free Spins
Views (868)
9.6
Our Score

New UK and IRL customers using registration code CASA30 only. Deposits through debit cards only. 35x wagering requirement on bonus, within 7 days, on eligible games. Winnings from bonus capped at £500. Free Spins available upon completion of bonus. Full T&Cs apply.

100% up to £100
Views (94)
8.7
Our Score

New users only. Min deposit £20. Deposit and spend £20-£200 on casino games in first 7 days after deposit to unlock free spins matching deposit amount. Free spins can only be used on selected games. Winnings credited in cash. Full T&Cs Apply.pe • Bonus expires in 21 days of deposit • Payment method & country restrictions apply • Withdrawal terms & T&Cs apply.

Spend £5
Get 250 Free Spins
No Wagering
Views (1,381)
8.7
Our Score

18+. BeGambleAware.org. New Customers Only. Opt in Required. 7 Day Free Spin Expiry. All Free Spins Will Auto Play on First Eligible Game Loaded. £5 Staking Requirement Must Be Met

100% up to £200
+11 Wager-Free Welcome Spins
Views (931)
8.5
Our Score

New Players Only. 1st, 2nd and 3rd Ever Deposit: 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

Deposit £20
Get 150 Free Spins
No Wagering
Views (188)
8.4
Our Score

First-deposit only • Claim in 48 hrs • RS (Real Spins) expire in 14 days • Valid for selected games • Wins credited as real money & capped at £20 • Winnings granted once all RS used or once winnings cap reached • Withdrawal restrictions & full T&Cs apply.18+ BeGambleAware

TOP ONLINE SLOTS BONUSES
TOP ONLINE SLOTS BONUSES
slots site
welcome bonus
slots games
our score
visit site
Get a 150% Bonus
up to £150
+25 Super Spins!
Starburst
Starburst
Mega Moolah
Mega Moolah
Rainbow Riches
Rainbow Riches
9.8
Our Score
Get BonusVisit 32Red

18+. BeGambleAware.org. New accounts only. Min. £10 deposit, debit card only. Up to 50x wagering, game contributions vary, max. stake applies, 7 day expiry. See full terms

100% up to £100
Book of Dead
Book of Dead
White King
White King
Starburst
Starburst
9.5
Our Score

Opt in required. New customers only. 1x per customer. Min. £20 deposit.1st deposit only. Selected games only. Max. Bonus £300 35x wagering and 50 Free Spins at £0.10/spin on Lucky Mr Green 35x Wagering. Free Spins credited once deposit amount has been wagered. Bonus and Free Spins expire 7 days after issue. Game weighting, game, player restrictions and terms apply.

Deposit £10
Get 120 Free Spins
Avalon
Avalon
Mega Moolah
Mega Moolah
Rainbow Riches
Rainbow Riches
9.1
Our Score

New customers only. 18+ T&Cs and wagering requirements apply.

Did you know? We count the number of visits to each casino site every 30 days to give you the most detailed and accurate information.

HOW TO USE TOP 10 BEST ONLINE CASINOS

Playing casino games online can be awesome fun; however, the choice of sites is now so wide that deciding which of them to try can be arduous. We are here to help you to make such a decision; on this site, we precisely detail what different sites offer across their games, bonuses and much more.

We have spent a lot of time researching and testing the UK's leading casino operators before providing in-depth reviews of our experiences. We always look at these aspects of a site, including:

  • Game selection - This includes the number, range and quality of the games. Popular ones like blackjack and roulette should have several variants, while slots should also vary hugely.
  • Bonuses - Virtually every operator offers a welcome bonus, such as free spins or more money to be added to a deposit.
  • Promotions - These can include ongoing and one-off promotions. We also negotiate exciting promotional offers from operators, which influences where they rank in our often-evolving list of the 10 best places to play.
  • Deposit/withdrawal options - Different sites offer different methods of depositing and withdrawing money. We recommend that you research sites to identify the best assortment of deposit and withdrawal options, including online wallets and credit card options. It’s also important to evaluate how quickly payments are made, which will also influence the financial returns if you go on a winning streak.
  • Customer service - Customer service can come in the form of FAQ, free tutorials and 24-hour live customer support. It’s important to find a site that demonstrates its care through its responsiveness to customer needs.

With these aspects in mind, you can find the best operator for you.

IMPORTANCE OF COMPARING ONLINE CASINOS

It bears emphasis that operators are far from identical. Yes, there are certain general features that you can realistically expect to see in all of the sites that you visit. Those include a range of games and payment methods, not to mention bonuses aimed at enticing you to join.

However, once you have spent time with various operators, the differences between them could become starker. You could notice that some sites offer a much greater range of games than others. You may also find that your favoured payment method isn't accepted at all sites.

Especially depressingly, you might realise that some of those bonuses aren't as promising as they initially seemed. A site might advertise a hefty welcome bonus that nonetheless can't be withdrawn until you bet a certain amount known as a "wagering requirement".

This hints at why you should carefully compare casino sites before selecting one. With help from our reviews, you can discern - for example - which ones offer an especially generous slots selection if you enjoy slots games, or those that accept PayPal if you would favour this.

Our reviewers have already thoroughly put different sites through their paces. For that reason, they can give you a heads-up about certain pitfalls of using what could otherwise be a very appealing site. One of those drawbacks may ultimately be a deal-breaker for you.

WHAT ARE THE IMPLICATIONS OF REGULATED ONLINE CASINOS?

Before November 2014, remote operators that provided gambling services to UK players tended to be licensed and regulated in the European Union, with Gibraltar and Malta particularly popular bases. Less than 15% of these operators were licensed by the UK Gambling Commission.

However, when the Gambling (Licensing & Advertising) Act 2014 entered force, it required all offshore operators to each hold a licence from the UK Gambling Commission. This change was aimed at further protecting UK players by making the regulation of these operators consistent.

Each of these gambling brands must adhere to particular, strict standards in order to both obtain and keep its UKGC license. These technical standards include testing its Random Number Generator software to verify that its games and payouts are fair.

Operators also need to clearly inform customers about how their funds are being protected and comply with policies and practices aimed at tackling money-laundering. They must also exercise the social responsibility of preventing minors from gambling and act to prevent compulsive gambling.

Each site that we work with has a licence from the UK Gambling Commission. This ensures that the casino is regulated and meets specific standards for safety and security.

HOW ONLINE CASINOS DIFFER IN SOFTWARE AND GRAPHICS

If you have sampled various sites and developed a strong feeling of déjà vu, this could be due to the same software purveyor providing many games for all of them. It is rare for a site to use software that it has made itself; third-party firms instead usually supply the software. Some of the most respected and well-known software providers in the industry include Playtech, Microgaming and NetEnt.

As these firms tend to supply this software to numerous brands, strong similarities can result between casinos; however, there can remain precise differences in the game selections. You should be able to trust that a reputable provider's software is stable and reliable.

If a site uses a low number of software providers, this does not necessarily mean that the game selection is narrow, as some providers offer a much broader range of games than others. The reputation of the providers, rather than their number, should hold greater weight in your thoughts.

Differences between sites can also arise in the graphics and interfaces. We favour sites that look slick and contemporary while also making useful information easy to find. Such information should cover the likes of deposit fees, payout rates and terms and conditions for specific bonuses.

DIFFERENT TYPES OF GAMES

Casino sites offer a wide variety of games. These include games like fruit slots, blackjack, roulette, baccarat, poker and more, and sometimes even tournaments. At every site, there are many variations and game types that are exclusive to one or a few specific operators. Make sure the site you choose has the games that excite you. Popular game types include, but are not limited to:

  • Roulette - Roulette, one of the most popular games, sees players bet on where a ball will fall on a revolving wheel. The odds and excitement can vary across multiple variations of roulette, which include European roulette, French roulette and American roulette.
  • Blackjack - In blackjack, players aim to obtain cards, the total face value of which is exactly 21. Online blackjack is especially exciting for offering bonuses on deposits, unlike the blackjack that is commonly available at standard land-based institutions.
  • Slots - These are the most frequently played games at both online casinos and their brick-and-mortar equivalents. Online, however, you can play slots games in a more streamlined way and enjoy a near-limitless number of bonuses.
  • Live casino - This recreates the feeling of a land-based casino by providing a live video feed of a human, rather than computerised, dealer. You can interact with this dealer and watch them as they arrange components on the table. Here are our favourite places to play.

HOW TO FIND THE BEST ONLINE CASINO

There can be noticeable, sometimes even significant, differences in features between operators. We are here to draw attention to what these differences are and, along the way, assist you in choosing the right casino for you.

You should resist simply taking the operator's word for what they offer, as this is unlikely to provide an entirely objective viewpoint. Our reviewer base includes people who are thoroughly experienced with the industry and highly enthusiastic about online gaming.

For each site that we review, we give a score out of 10 and also allow our visitors to provide their own ratings out of 5. Read each review, and you will see that we assess the site's welcome bonus, variety of games, customer support, payment options and payout policy.

However, when visiting a casino site, you should also look out for these:

  • Promotions - A site can offer both permanent promotions and one-off promotions; either way, there can be exciting cash prizes and other bonuses to win.
  • Software - Many operators source their games from third-party software providers, good examples of which include NetEnt, Microgaming and Playtech.
  • Security - It is common for a site to have an FAQ section that includes details of the procedures and policies for keeping customers' money safe.

YOU CAN ENJOY PLAYING AT ONLINE CASINOS, TOO

People who have frequented casino sites since their infancy might recall how, back then, many such sites would give players software to download straight to their desktop and laptop computers.

With this software, a player could sample the games without needing to load and play them within a web browser. While such desktop software still remains available, many operators now tend to promote their mobile apps more heavily.

It's worth pointing out that mobile casino offerings remain highly functional when you are playing within a web browser. HTML5 has enabled operators to make the quality of their desktop and mobile offerings largely equal. Nonetheless, mobile apps can differ greatly to in-browser casinos on mobile.

Some gambling brands might choose to slim down the features of certain games, like slots, on the app. You should also consider that mobile apps, unlike web-based games, will always take up space on your device, while the software updates will not necessarily occur automatically.

The question of whether you should use a website or app for your on-the-go gaming exploits is therefore very dependent on personal preference. Still, we hope that whatever way you ultimately choose to play, the decision won't be a tough one – perhaps due to valuable assistance from our reviews.

Use the ratings and reviews at Top 10 Best Online Casinos to discover and compare the leading sites operating today!

WHY CHOOSE 32Red?

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Our Score:
9.9
Top Highlights:
  • Multiple Customer Awards
  • Unique bonuses & promotions
  • Popular with UK players
Special Welcome Bonus:
Get a 150% Bonus
up to £150
+25 Super Spins!
Get Bonus
What Our Expert Has To Say:
inspirational-image
Top 10 Staff
"32Red appeals to players seeking a broad assortment of slots, roulette, blackjack, jackpot and poker games, as well as some less common options, such as Slingo. Its promotions and bonuses are also more varied and quirky compared to many obvious competitors, with both weekly and personalised promos on offer. "

WHY CHOOSE Dr. Bet?

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Our Score:
9.8
Top Highlights:
  • Many trusted game developers
  • Try games in demo mode
  • Extensive live-dealer casino
Special Welcome Bonus:
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+50 Free Spins
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What Our Expert Has To Say:
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Top 10 Staff
" Whatever you expect from your online casino experience, it will almost certainly be provided at Dr.Bet. The site is especially strong in terms of its online guides and customer support available right around the clock, although the slots, blackjack, roulette and other games here are also very wide-ranging. The latter is ensured in part by a similarly broad range of represented games providers, such as NetEnt, Microgaming, Evolution Gaming, and more. We especially like some of the more unusual live-casino titles here, such as Speed Baccarat and Monopoly Live. "

WHY CHOOSE Betfair?

inspirational-image
Our Score:
9.6
Top Highlights:
  • Trusted & familiar UK brand
  • Variety of different games
  • Large selection of slot offering
Special Welcome Bonus:
Deposit £10
Get £40
+100 Free Spins
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What Our Expert Has To Say:
inspirational-image
Top 10 Staff
"Betfair has long been considered one of the premier destinations in online gaming. The site is primarily aimed at the UK market, although they have such a wide range of slots and other options that a world-wide following has also developed. No matter if you are looking to play some slots (tons of the coolest varieties to choose amongst), wager on a game, punting around in the casino (even offer a live version), or playing a couple of quick hands of poker, Betfair has got it covered."

WHY CHOOSE Betbull?

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Our Score:
8.7
Top Highlights:
  • Offers casino & sports betting
  • Highly community-based feel
  • Almost 30 live dealer games
Special Welcome Bonus:
100% up to £100
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What Our Expert Has To Say:
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Top 10 Staff
"While BetBull is especially famous for its ‘banter’-oriented sports betting including group chat, the site’s casino section is not just an afterthought. You can enjoy casino and slots games here on the desktop site or in optimised form via your mobile device’s web browser or downloadable app. The selection of live dealer games here is especially generous, with options including Deal or No Deal and Monopoly Live. With chat support also available 24/7, BetBull caters to the basics and ‘luxuries’ alike, although the broader site is still particularly well-suited to sports betting enthusiasts."

WHY CHOOSE Sky Vegas?

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Our Score:
8.7
Top Highlights:
  • Highly trusted Sky brand
  • 100s of top-notch casino games
  • Free spins with no deposit needed
Special Welcome Bonus:
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What Our Expert Has To Say:
inspirational-image
Top 10 Staff
"Sky Vegas has long been Sky’s main online casino division, and its colourful and vibrant site certainly suggests a fun, constantly stimulating place. Its ‘no deposit, no wagering’ approach to its new customer bonus, however, helps to make it stand out even more. As for the games, those include both generic and branded slots, jackpots and Megaways games, as well as table games."

WHY CHOOSE Mr Vegas?

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Our Score:
8.5
Top Highlights:
  • More than 2,800 video slots
  • Over 280 live casino rooms
  • Wager-free welcome spins
Special Welcome Bonus:
100% up to £200
+11 Wager-Free Welcome Spins
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What Our Expert Has To Say:
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Top 10 Staff
" With almost 3,700 games in all-encompassing both obvious and less frequently spotted game types like video slots, video poker, roulette, blackjack, Slingo, and many more – you won’t be complaining about a lack of choice if you sign up to mrvegas.com. The site’s search functionality makes it easy to narrow down your gaming options, which are provided courtesy of many different respected software developers such as 1X2gaming, Evolution, and Microgaming. The customer support options here are also more extensive than many leading competitors offer. "

WHY CHOOSE 888?

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Our Score:
8.4
Top Highlights:
  • 100s of games to choose from
  • Daily live casino VIP table
  • Exclusive promos & rich rewards
Special Welcome Bonus:
Deposit £20
Get 150 Free Spins
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What Our Expert Has To Say:
inspirational-image
Top 10 Staff
"Even if you choose 888casino because of the 888 brand that’s been around for decades, you’ll probably stay for the various slots, jackpots, scratch cards, roulette, blackjack, baccarat and live casino games. Distinctive promo events run on the site from day to day, while the VIP scheme offers such rich rewards as prize draws and the chance to attend prestigious events."