Best Online Casino Sites - UK Online Casinos With Deposit Bonuses

Best Online Casino Sites

Looking for the best online casino sites? We've listed the top online casinos in the UK along with their deposit bonuses so that you can easily find the best casino to play at. Each one has been reviewed & verified by our expert team.

Our scores for each of the best casinos in the list are based on fast payout times, deposit bonuses, withdrawal options, platform security, customer support & more. You can rest assured that each casino is safe to play at.

Page updated on 23rd September 2023

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Looking for the best online casino sites? We've listed the top online casinos in the UK along with their deposit bonuses so that you can easily find the best casino to play at. Each one has been reviewed & verified by our expert team.

Our scores for each of the best casinos in the list are based on fast payout times, deposit bonuses, withdrawal options, platform security, customer support & more. You can rest assured that each casino is safe to play at.

Page updated on 23rd September 2023
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King Casino Logo

King Casino - Up To £150 Welcome Package + 50 Extra Spins

18+. New Players Only. Min. deposit £20. UK players. Max. bonus 1st deposit 100% up to £50 and 2nd deposit 50% up to £100. Max wins from spins £100. 35x wagering applies, within 21 days. 20 spins on 1st deposit and 30 spins on 2nd deposit. Spins expire after 24 hours. Full T&Cs apply.

King Casino is a hugely popular & well-known casino site offering live casino games & slots. The site boasts almost every game imaginable, including big names like Immersive Roulette, as well as jackpot slots & even game show games such as Crazy Time. On top of all that, they also offer an attractive welcome package for new players that could see them getting up to £150 + 50 extra spins.

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666 Casino Logo

666 Casino - Up To £66 + 66 Free Spins For New Players

18+. New players only. Min deposit £20. Max bonus 100% up to £66 on 1st deposit. 66 spins on Big Bass Bonanza on 2nd deposit. 35x wagering applies, within 21 days. Max wins from spins £100. Spins expire after 24 hours.

666 Casino is an online casino where you can play over 1,500 games, including over 60 jackpot slot games, blackjack, roulette and live casino games. It is very highly rated in the UK & was re-launched in 2023 with a bigger selection of games than ever before.

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Slotzo Logo

Slotzo - Up To £150 Welcome Package on First 2 Deposits + 50 Extra Spins

18+. New Players Only. Min. deposit £20. Max. bonus 1st deposit 100% up to £50 and 2nd deposit 50% up to £100. Max wins from spins £100. 35x wagering applies, within 21 days. 20 spins on 1st deposit and 30 spins on 2nd deposit. Spins available on specific games. Spins expire after 24 hours. Full T&Cs Apply

Don't be fooled by the name. Whilst Slotzo might sound like a site that only features slot games, it offers a whole lot more. Being operated by Aspire Global, Slotzo brings not only a plethora of slot games but also a plethora of casino games too, including live casino & live roulette. On top of that, the site is absolutely lightning fast meaning it's perfect for players who hate waiting around for games to load.

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Dream Jackpot Logo

Dream Jackpot - 50 Extra Spins on Big Bass Bonanza on First Deposit

18+. New players only. Min deposit £20. 1st deposit: 50 spins on Big Bass Bonanza. 35x wagering applies, within 21 days. Max wins from spins £100. Spins expire after 24 hours.

Dream Jackpot is an online casino that was launched in 2017. It offers a wide variety of games, including slots, blackjacks, table games, poker, and many more. This casino site offers a lot of bonuses, free spins, and promotions to new and existing members.

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Kong Casino Logo

Kong Casino - 100% Match Up Bonus + 50 Free Spins on Big Bass Bonanza

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&C's apply

Kong Casino offers a vast selection of top online slots, roulette, blackjack, solitaire, baccarat, and bingo. Customers can look forward to treats like a generous welcome bonus, numerous promotions, and free spins. This casino site also received a design refresh in 2022 & is now better than ever before.

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Clover Casino Logo

Clover Casino - 10 Free Spins on Aztec Gems No Deposit Required

New players only, no deposit required, valid debit card verification required, £8 max win per 10 spins, max bonus conversion £50, 65x wagering requirements, full T&Cs apply

Clover Casino has been around for some time but was brought a refresh in 2022 & now it's better than ever. They offer a wide range of games, a 10 free spins no deposit bonus & the ability for you to deposit using your phone bill. Clover Casino is a brilliant casino site to play at, especially if you love slot games.

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Thor Slots Logo

Thor Slots - Win Up To 500 Free Spins on Vikings Go Berzerk

New players only, £10 min fund, £8 max win per 10 spins, max bonus conversion equal to lifetime deposits (up to £250) to real funds, 65x wagering requirements and full T&Cs apply

Thor Slots offers a wide selection of fantastic Viking-themed games from some of the best developers in the world. In addition, you can explore the most recent releases, top-played games, and jackpot games. They also offer the highly sought-after pay-by-mobile deposit method.

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Amigo Slots Logo

Amigo Slots - Win Up To 1000% Matchup Bonus

New players only, £10 min fund, £2,000 max bonus, max bonus conversion equal to lifetime deposits (up to £250), 65x wagering requirements and full T&Cs apply

Amigo Slots is an online casino that offers players hundreds of games, including the best mobile slot machines, table games, bingo, scratch cards, and live casino. This Mexican-themed slot site launched in 2019 and is operated by well-established Jumpman Gaming Ltd, one of the leading casino operators in the UK.

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Wizard Slots Logo

Wizard Slots - Win Up To 500 Free Spins on Starburst

New players only, £10 min fund, £8 max win per 10 spins, max bonus conversion equal to lifetime deposits (up to £250) to real funds, 65x wagering requirements and full T&Cs apply.

Wizard Slots is a name you may be familiar with, as it's one of the most popular slot sites around. It's part of the Jumpman Gaming network & was launched way back in 2016. This site features all of the most popular slot games & it also has new slot games added every single week. On top of that, you can even play a good selection of casino & bingo games, so there's truly something for everybody at this casino site.

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LateCasino Logo

LateCasino - Win Up To 500 Free Spins on Starburst

New players only, £10 min fund, £8 max win per 10 spins, max bonus conversion equal to lifetime deposits (up to £250) to real funds, 65x wagering requirements and full T&Cs apply

Late Casino is the casino that never closes. Late Casino is online 24/7 & all of the games at this casino site are compatible to be played on any device. This means that you can play their casino games on your laptop, tablet or even on your mobile phone,

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King Casino - Up To £150 Welcome Package + 50 Extra Spins
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18+. New Players Only. Min. deposit £20. UK players. Max. bonus 1st deposit 100% up to £50 and 2nd deposit 50% up to £100. Max wins from spins £100. 35x wagering applies, within 21 days. 20 spins on 1st deposit and 30 spins on 2nd deposit. Spins expire after 24 hours. Full T&Cs apply.

666 Casino - Up To £66 + 66 Free Spins For New Players
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18+. New players only. Min deposit £20. Max bonus 100% up to £66 on 1st deposit. 66 spins on Big Bass Bonanza on 2nd deposit. 35x wagering applies, within 21 days. Max wins from spins £100. Spins expire after 24 hours.

Slotzo - Up To £150 Welcome Package on First 2 Deposits + 50 Extra Spins
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18+. New Players Only. Min. deposit £20. Max. bonus 1st deposit 100% up to £50 and 2nd deposit 50% up to £100. Max wins from spins £100. 35x wagering applies, within 21 days. 20 spins on 1st deposit and 30 spins on 2nd deposit. Spins available on specific games. Spins expire after 24 hours. Full T&Cs Apply

Dream Jackpot - 50 Extra Spins on Big Bass Bonanza on First Deposit
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18+. New players only. Min deposit £20. 1st deposit: 50 spins on Big Bass Bonanza. 35x wagering applies, within 21 days. Max wins from spins £100. Spins expire after 24 hours.

Kong Casino - 100% Match Up Bonus + 50 Free Spins on Big Bass Bonanza
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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&C's apply

Clover Casino - 10 Free Spins on Aztec Gems No Deposit Required
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New players only, no deposit required, valid debit card verification required, £8 max win per 10 spins, max bonus conversion £50, 65x wagering requirements, full T&Cs apply

Thor Slots - Win Up To 500 Free Spins on Vikings Go Berzerk
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New players only, £10 min fund, £8 max win per 10 spins, max bonus conversion equal to lifetime deposits (up to £250) to real funds, 65x wagering requirements and full T&Cs apply

Amigo Slots - Win Up To 1000% Matchup Bonus
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New players only, £10 min fund, £2,000 max bonus, max bonus conversion equal to lifetime deposits (up to £250), 65x wagering requirements and full T&Cs apply

Wizard Slots - Win Up To 500 Free Spins on Starburst
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New players only, £10 min fund, £8 max win per 10 spins, max bonus conversion equal to lifetime deposits (up to £250) to real funds, 65x wagering requirements and full T&Cs apply.

LateCasino - Win Up To 500 Free Spins on Starburst
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New players only, £10 min fund, £8 max win per 10 spins, max bonus conversion equal to lifetime deposits (up to £250) to real funds, 65x wagering requirements and full T&Cs apply

Affiliate Disclosure
Some of the links on this page may be affiliate links, meaning if you click via our links to visit a casino and make a deposit, we may receive a commission at no additional cost to you. This does not affect the bonus offer or the quality of the information we provide on our site. We take pride in making sure we write unbiased reviews and always strive to provide you with accurate information. You can read our full review policy here.

Best Online Casino Sites

Finding a good online casino can be daunting for a traditional player or for a new player. Here at Best Casino HQ, we aim to give you all the safety tips and information to decide where to play and what options are best for you.

How We’ve Ranked The Best Online Casinos In The UK

The best online casinos that we’ve listed on this page have been ranked not just on how they look but based on many important factors like safety, trustworthiness, reputation & selection of games to play. We know how important safety and trust are to users in an online platform, especially one that involves their money or personal information.

You can view full details on how we rank & rate casinos by reading our casino review policy.

How To Choose The Best UK Casino Site For You

Choosing an online casino will always vary from player to player. This decision largely depends on your goals and what you want to get out of your online casino experience. But rest assured, we are here to help.

Outside of your goals and all the great bonuses that online casinos have to offer, other factors are more important to you as a player to ensure you have a great experience. 

The first two are trust and safety. When choosing an online casino, one of the first things you should do is ensure they have all the necessary licenses to lawfully operate. You can do this by scrolling down to the very bottom of the casino site & looking for their license details.

After finding a licensed casino, the next thing to check is that the casino website actually loads fast & is easy to use. After all, you don’t want to find yourself playing on a website that loads slowly or on which the casino games freeze, as that will just result in frustration.

And lastly, one other important factor is banking. It’s important to check the casino’s deposit and withdrawal methods, check the fees if there are any, and check the processing time for each method to find what’s best for you.

The good news is that if you are looking for casinos with specific deposit methods, we’ve got you covered. We’ve created individual pages listing casinos by their deposit method offerings, with some of the most popular listed below:

Then, once you’ve checked all the big important boxes listed above, you can start looking at things like the variety of games, bonuses and the general look and feel of the platform.

Best Casino Website Welcome Offers

Online casinos offer bonuses and rewards to welcome you on board. These bonuses range from deposit bonuses & free spins bonuses to no deposit bonuses & sign up bonuses. Below we’ve listed a few different types of common casino bonuses and how they work.

Deposit Bonuses

For deposit bonuses, casinos will typically add a percentage of your deposit into your account or match your deposit up to a certain amount. For example, a casino may match your first deposit up to a specific amount, such as 200 pounds.

Free Spins

Another type of bonus is the free spins bonus. This means you get a specific number of free spins on some of the games. The number of spins differs from site to site.

No Deposit Bonus

Then there is the no-deposit welcome bonus, where you can get credit to your account when you sign up without making a deposit first.

How To Register at a Casino Site & Start Playing Games Online

The sign-up or registration process for most online casinos is pretty much the same as any other website. However, sometimes the information that is required may differ from platform to platform.

Once you have chosen your casino based on the criteria above, you’re going to need to visit their website to register. You can do this by browsing through our list of online casino sites above & then simply hitting the “Visit Site” button to be taken directly to their website.

Registration

The next step is registration. Here you will need to find the button that takes you there, this will typically be on the home page or in a menu on the top left or right of the screen.

During this process, you will be asked for an email address, a password, a username and sometimes your preferred currency. This is followed by more details about your age, gender, your real name and surname. Once you click sign up, you’re done.

Bonuses and Deposits

At this point, you are registered and can now start interacting. You may get a pop-up that tells you to deposit money into your account before you start playing. But before that, you will generally want to collect your bonus (if you signed up at a casino that offers a bonus).

Depending on the specific bonus offer, you may need to deposit funds before receiving your bonus. But in other cases, such as in no deposit bonuses, you can continue straight to collect your bonus and start playing.

Playing The Games

In the same menu at the top, there will usually be a link to the games. When you have clicked on this, you will be directed to a page where you can select from a variety of games. And that’s it; you’re all set.

All you need to do from this point is simply tap on a game that takes your fancy & then it’ll open up for you to play. If you’re unsure of the rules, simply look for the “Help” or “(i)” icons on the game main menu & you’ll be provided with instructions on how to play.

Responsible Gaming Guidelines For UK Players

Now that you’re all set, there are a few things to remember about gaming and online casinos.

The most important thing is to remember that these games are meant for recreation and not to be used as a source of income.

Always limit or keep track of how much time you spend on casinos and gaming. This will help you regulate how much time and money you are spending and help you set limits.

And with that in mind, you should always keep a budget or limit for how much money you will spend on gaming and stick to it. Never fall into the trap of trying to win back your losses.

Manual Flushing & Other Casino Site Features 

Manual flushing is offered by some online casinos to ensure that clients have the option to reverse withdrawal requests, in turn allowing them the opportunity to either change their mind about the withdrawal or rather continue gambling with the remaining funds.

How it works depends on the payment method the casino uses. Generally, the withdrawal request takes 24-48 hours. The casino should verify the person’s banking details, personal information, Identity Document or photo and utility bill.

The benefit of manual flushing is that most online casinos licensed by the UK Gambling Commission feature it. In addition, this feature extends beyond the UK online casinos. 

What Are The UK’s Most Popular Online Casino Games?

UK players enjoy playing a wide variety of casino games, but the 3 most popular ones are:

Online Slots

Online slots are by far one of the UK’s most popular casino games. UK players love to play online slot games & it’s easy to see why because when it comes to slots there are many variations, meaning there is something for everybody.

Whether it’s classic slot games like the fruit machines you’d typically see in pubs or the latest slot games such as Slingo (which combines both bingo & slots), there are games out there to entertain everybody.

Roulette

Also known as the “Devil’s game”, roulette is very famous in the online casino world. An interesting fact is all the numbers on the roulette wheel combined add up to 666, hence the nickname.

There are different variations of roulette, but they all feature a similar premise. Place a bet, watch the wheel spin & see if the ball lands on the number (or numbers) that you bet on.

If the ball lands on a number you’ve chosen, you win! If it doesn’t, you lose.

And this level of simplicity is likely one of the main reasons why roulette is loved by so many in the UK. It’s an easy game to play, yet the rewards for a win can still be very high.

Blackjack

A very popular online game in the UK, as one of the very few games where the casino becomes your opponent. The casino plays as the dealer, if you win, you take the money from the house. 

Blackjack begins with the player receiving two cards & the dealer gets the same amount of cards too. One card has to face up & depending on the value of the cards, you could either; Stand, Double Down, Surrender, Split Cards or even Hit for another card.

The purpose of the game is to beat the dealer by producing a hand close to or equal to 21. However, if you exceed 21 that is called going bust, which means you lost the game. If you manage to get 21, then that results in a tie, which means a draw result.

Casino Wagering Requirements Explained

Wagering requirements, also known as play-through requirements, are the number of times the player has to bet the total bonus amount before he or she can withdraw any winnings.

Some casinos require players to wager their deposit as well as the bonus to gamble a lot more before having the option of withdrawing their winnings.

Unfortunately, if the player fails to meet the wagering requirements by a specified time frame, many casinos will actually void the bonus altogether.

A typical example of how wagering requirements work is if you have £100 and the wagering requirements are 35x, this means that you would have to wager £3,500 before you can receive some returns.

UK Casino Sites FAQs

Whilst we’ve tried to cover everything there is to know about UK casino sites on the page above, we appreciate that there may still be some additional questions floating around in your mind. To help answer them, we’ve included an additional casino sites FAQ below:

Why do online casinos offer bonuses?

Online casinos offer bonuses as an incentive to get new players to join and play at their casino sites. They know that because of the house edge & wagering requirements, they will likely get their bonus money back (and more money) in the long run if the players keep playing.

Which online casino pays the quickest?

Many casinos now offer instant payouts via Ewallets such as PayPal & Skrill. If you’d like to find a fast-paying casino site, simply check out our real money casino sites page.

Are online casinos safe?

Yes, licensed online casino sites are safe as they are regulated to make sure that they are operating legitimately. Here at Best Casino HQ, we only ever featured licensed online casinos within our listings.

Can you win real money at online casinos?

Yes, online casinos have some of the best bonus offers which you can use to potentially win real money. We’ve even put together a full list of real money casino sites.

Which online casino has the best payouts?

You can check out the list of casino sites at the top of this page to find the best-paying casino. We’ve listed them together in a table to make them easy to compare.

What is the best casino for UK players?

The best casino depends on your requirements. Thankfully we’ve compared several of the best casinos for UK players & provided them in a table at the top of this page so that you can easily find the best one for you based on your individual requirements.

Which casino site has the best odds?

The odds differ from game to game, but to find the online casino with the best odds & highest-paying games, simply check out the comparison table at the top of this page.

Are online casinos rigged?

No, online casinos are not rigged. Online casinos have something known as a house edge which means that, ultimately, the casino (or “house”) always wins. So there would be no need for a casino to be “rigged” because the odds are in its favour to win in the long run.

DISCLAIMER - All promotional codes or free bet offers, welcome bonuses and promotions that are listed on this site are subject to the terms and conditions of the respective operators.

Gambling Can Be Addictive. Please Play Responsibly.

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