The Top 10 UK Online Casino Bonuses of 2021

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.

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luckland
Welcome Bonus
100% Bonus
up to £50
+50 Free Spins
Rate it! (4836)
Read Review
8.9
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Top Slots Sites of {year}
Top Slots Sites of 2021
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Exclusive Offer
32red
Welcome Bonus
150% Bonus up to £150
+32 Super Spins
18+. BeGambleAware.org. New customers only. Min. £10 depo...18+. BeGambleAware.org. New customers only. Min. £10 deposit, debit card only. Up to 50x wagering, game contributions vary, max. stake applies, 7 day expiry. Full T&C's apply.View full terms & conditions
Starburst
Starburst
Starburst

Starburst

There's a reason it's one of the most popular slots worldwide, with free spins and bonuses galore.

Play Now
Who Wants to be a Millionaire
Who Wants to be a Millionaire
Who Wants to be a Millionaire

Who Wants to be a Millionaire

The popular TV game show from the UK has finally made it onto the slot reels.

Play Now
Mega Moolah
Mega Moolah
Mega Moolah

Mega Moolah

World-famous for a reason, see what all the fuss is about in this African-themed slot.

Play Now
Rate it! (4356)
9.8
poker-stars
Welcome Bonus
Deposit £10
Get 100 Free Spins
18+ only. New casino players only. Min. £10 deposit with ...18+ only. New casino players only. Min. £10 deposit with code ‘CASINO100’, debit card only. Valid on 7 slots. 7-day expiry. All spins must be used before cashout allowed. Terms apply.View full terms & conditions
Book of Dead
Book of Dead
Book of Dead

Book of Dead

Rich Wilde is back, and his adventures have led him to the pyramids of Ancient Egypt.

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Starburst
Starburst
Starburst

Starburst

There's a reason it's one of the most popular slots worldwide, with free spins and bonuses galore.

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Gonzo's Quest
Gonzo's Quest
Gonzo's Quest

Gonzo's Quest

Follow Gonzo's adventure to Eldorado – the legendary lost city of gold – and follow your heart's desires.

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Rate it! (4207)
9.5
777
Welcome Bonus
200% up to £500
Welcome Bonus
New customers only. 18+ T&Cs and wagering requirements ap...New customers only. 18+ T&Cs and wagering requirements apply.View full terms & conditions
A Nightmare on Elm Street
A Nightmare on Elm Street
A Nightmare on Elm Street

A Nightmare on Elm Street

Play A Nightmare on Elm Street to enjoy a thrilling slots experience!

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Starburst
Starburst
Starburst

Starburst

There's a reason it's one of the most popular slots worldwide, with free spins and bonuses galore.

Play Now
Twin Spin
Twin Spin
Twin Spin

Twin Spin

Old-skool retro slots meets new-age slot sights and sounds in this 243-ways-to-win slot.

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Rate it! (3571)
9.3
Top Live Casino Sites of {year}
Top Live Casino Sites of 2021
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Exclusive Offer
32red
Welcome Bonus
150% Bonus up to £150
+32 Super Spins
18+. BeGambleAware.org. New customers only. Min. £10 depo...18+. BeGambleAware.org. New customers only. Min. £10 deposit, debit card only. Up to 50x wagering, game contributions vary, max. stake applies, 7 day expiry. Full T&C's apply.View full terms & conditions
Rate it! (5342)
9.8
grosvenor
Welcome Bonus
200% Bonus up to £700
New customers only. 18+ T&Cs and wagering requirements ap...New customers only. 18+ T&Cs and wagering requirements apply.View full terms & conditions
Rate it! (4593)
9.4
luckland
Welcome Bonus
100% Bonus
up to £50
+50 Free Spins
New customers only. 18+ T&Cs and wagering requirements ap...New customers only. 18+ T&Cs and wagering requirements apply.View full terms & conditions
Rate it! (4836)
9.2

About Casino Bonuses

It probably isn’t a good idea to choose an online casino purely because of the available bonuses, but it is certainly something you will want to take into account. Ideally, you want a venue that offers the games you like, creates a suitably entertaining environment, treats you well, and offers great promotions. A casino bonus is a reward that you receive for completing a certain action. The most common types include:

  • Sign-up
  • First deposit
  • No deposit
  • Payment method
  • Monthly
  • Welcome
  • ‘Refer a friend’ 
  • High-roller 
  • Reload 
  • Matching deposit 

The Best Online Casino Games

One of the biggest misunderstandings about casino bonuses is the idea that this credit is somehow worthless. It is true that there can be restrictions on how this credit is used, but otherwise it is treated the same as the money you add to your account. In order words, if you don’t take advantage of your casino bonus, it does mean you will be losing out. The main reason so many of us underestimate the value of free casino bonuses is that it sounds too good to be true. Why would these online venues give away something for nothing? The reality is that there is a great deal of competition between the various casinos, and they are part of the price required to win your custom.

What to Look for When Choosing Casino Bonuses

One of the most important considerations when considering casino bonuses is the restrictions that apply to it. The less repeatable casinos can have so many strings attached to this free credit that it makes it almost worthless. One of the advantages of using a website like this one is we tell you the real value of the offers so you can base your decision on more than just hype. The most common types of restrictions that apply include:

  • Sticky – can never be cashed out; this credit stays in your account but you can withdraw any winnings you accumulate using it
  • Phantom – disappears as soon as you cash out
  • Cashable – you can turn this credit directly into cash although there may be wagering requirements that apply to it
  • Non-cashable – e.g. sticky or phantom 
  • Time-limited – you need to use it within a certain time limit
  • Insurance – this is given as a percentage of your losses

There are many players who have become obsessed with bonus hunting. It is always nice to get something for nothing, but you don’t have to waste too much time on this type of activity. We provide all the latest information you need about available bonuses here. You can use our comparison charts to quickly find the latest best deals – we recommend you check these charts regularly if bonuses are important to you. Some casinos can be generous with their first-deposit promotion but a bit stingy otherwise. We suggest that you consider the full package of bonuses before choosing one of these venues. If you are going to be returning to the same venue regularly, your loyalty should be rewarded.

The Advantages of a Casino Bonus

A casino bonus means you get to play with some free credit. It allows you to play more games, so it increases the likelihood of you hitting the jackpot – it also means that you get to spend more time playing. The availability of so many attractive promotions is one of the advantages of online casinos, and you can do well out of these special offers if you know what you are doing. You can use the information on our website to find the best casino bonuses as well as other important information you will need when choosing a venue.