Best Online Casino Sites 2021

Last Updated: Feb 24th, 2020
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200% Welcome Bonus up to £500 + 50 Bonus Spins

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18+. New players only. 1 bonus offer per player. 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 200% match up to £500 + 50 bonus spins on your 1st deposit, 25% match up to £1000 + 50 bonus spins on your 2nd deposit, and 50% match up to £500 + 25 bonus spins on your 3rd 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. Terms apply. BeGambleAware.org

100% Welcome Bonus up to £400 + 50 Bonus Spins

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18+. New players only. One bonus offer per player. Minimum 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 must be used within 30 days otherwise any unused bonus shall be removed. Bonus funds are 100% match up to £400 on your 1st deposit, 40% match up to £3000 on your 2nd deposit, and 60% match up to £1500 on your 3rd deposit. Bonus funds are separate to Cash funds, and are subject to 35x wagering the total bonus & cash. Only bonus funds contribute towards any wagering requirements. Terms apply. BeGambleAware.org

121% Welcome Bonus up to £300

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18+. New players only. Min deposit £10. Bonus funds are 121% up to £300 and separate to Cash funds. 35x bonus wagering requirements apply. Only bonus funds count towards wagering requirement. £5 max. bet with bonus. Bonus funds must be used within 30 days, otherwise any unused shall be removed. Terms Apply. BeGambleAware.org

Unlock up to £100 Cash & 20 Wager-Extra Spins

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FullT&Cs apply. Extra spins - no deposit required & new players only. Claim within 3 days of registration & 3 day expiry. Extra spins worth £0.10 each on Book of Dead, winnings paid as cash. Deposit offers available across any two deposits. Both expire 7 days after registration & have 7 days to wager once claimed. Deposit £10, £25 or £50+ & wager 35x for a cash reward. Only cash stakes qualify & wagering contributions vary. 5 extra spins on Book of Dead with each qualifying deposit, 3 day expiry.18+ BeGambleAware.org.

Deposit £20, Play with £50 + 50 Extra Spins

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Deposit £20 Play With £50 : New customers. 35x wagering of bonus (% game weightings and play restrictions apply). Max bonus bet £5. 15 days to accept. 30 days to complete. Extra Spins on Starburst: 10p per spin. 7 days to use. Max withdrawal from winnings for each bonus is £500. Full T&C’s apply

Play with £88 FREE No Deposit Needed + 100% up to £100 BONUS with your 1st Deposit

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New players only • No Deposit Offer: Claim in 48 hrs • 14 day expiry • FP wins are credited as bonus and capped at £10, exc. JP win • 50x wagering • Deposit Bonus Offer: £20 min deposit • Valid for selected games • Bonus wins capped at £500 • 30x wagering – req. vary by game • Bonus expires within 90 days • Withdrawal terms, No Deposit Offer terms & Deposit Bonus Offer terms apply.

Wager £10, Get £70 in Bonuses + 50 Extra Spins

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New customers only. Opt in, Deposit via card payments only and wager £10 within 7 days of opening new account. Receive 2 x £20 bonuses, 3 x £10 bonuses for selected games up to 60x wagering. Max redeemable £3,500 from Casino bonuses. Bonuses expire in 7 days. Extra Spins credited over 5 days, no wagering requirements and expire in 1 day. Geographical Restrictions and T&C's Apply, see below. Please Gamble Responsibly 18+

100% Welcome Bonus up to £200

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18+ | New Customers Only | BeGambleAware.org | Full T&C's Apply

100+ Casino Games available now

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T&C's Apply, 18+, Please Gamble Responsibly.

50% Welcome Bonus up to £200

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50% deposit offer up to £50 x 4 claims. Total of four (4) cash bonuses available. 35x real money cash wagering of deposit offer amount must be met (30 days from deposit) before bonus amount is credited in cash.

100% Welcome Bonus up to £50 + 100 Extra Spins

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18+ New Players only. T&C's Apply. Gamble responsibly. www.begambleaware.org

Deposit £10, Get £40 + 100 Extra Spins

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New UK & IRL Customers only. Min deposit £10 . Deposits made with e-wallets are not valid for this promo. Bonus wagering x35 on eligible games.Full terms & conditions apply.

100% Buy in Bonus + 50 Extra Spins

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18+ Opt in required. New customers to Casino page only. 1x per customer. Min. Buy in £10. Bonus value 100% of Buy in. Max. Bonus £300. 40x Wagering, Max Redeemable £4,000. 50 Extra Spins with x35 wagering will be awarded after the Buy in Bonus is completed, Max Redeemable £1,000. Bonus expires after 7 days. Stake contributions, player, country, currency, payment method, game restrictions and terms apply.18+

Deposit £10, Get £50 + 100 Extra Spins

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New Customers from UK & IRL only. Deposits made with e-wallets are not valid for this promo. Bonus wagering x35 on eligible games. Winnings from bonus capped at £/€500. Spins available after bonus is redeemed/lost. Opt in required. Full T&Cs apply.

Casino at bet365 - Up to £100 New Player Bonus!

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New Casino customers only.Deposit min. £10. Applies to first deposit to Casino only. Max. bonus £100. 20x wagering (game weighting, table coverage and max. bet rules apply) on deposit and bonus to make the bonus balance withdrawable. Time limits and T&Cs apply. 18+. Gamble responsibly. www.begambleaware.org

Guide to Online Casinos UK

Do you know how to find the best casino sites UK gaming has to offer? Trusting your own judgement is one way, of course. But if you don’t have the foundation of knowledge from which to make your own decisions, it’s easy to go wrong. In this guide, we break down what you need to look for when you’re on the hunt for the top UK casinos.

What Makes the Best Online Casino Sites?

Defining what makes an online casino stand out isn’t always easy. Because players make their decisions based on personal preference, no one UK casino is going to satisfy everyone. As much as finding the best casino sites UK is an art, you can be pragmatic about the selection process. In doing so, look out for the following:

  • A Valid Gaming Licence: This is perhaps the most important point. If a UK casino site doesn’t have a licence, you shouldn’t use it. Aside from being illegal, sites without a UKGC licence don’t have to offer a secure or fair platform. Put simply, only UKGC licensees will offer a safe gaming experience.
  • Tons of Added Value: The best UK casino sites all offer a variety of promotions. A welcome bonus should be seen as standard. Beyond that, you should look for loyalty incentives such as reload rewards, free spins, VIP schemes and more. In addition to the bonuses themselves, you also need to look at an operator's wagering conditions. The top UK casino sites ensure it’s as easy for you to unlock your bonuses as it is to claim them.
  • Quality Games and Software: There are certain software providers of note in the UK gaming space. The best online casino sites will take as many games from the big brands as possible. Names you need to look out for are: Microgaming, NetEnt, Playtech and Evolution Gaming. Although there are others, these companies offer high-quality games that, in turn, means the casinos that partner with them are worth using.

Comparing the Best Casino Sites UK

Once you’ve established an outline of what the best online casino sites look like in isolation, the next step is to compare. Our reviews do this as standard, but it’s also something you should do for yourself. The reason for this is that you never know what something’s worth if you don’t hold it up against something else. In the UK casino world, this is particularly important because something can seem impressive until it's challenged. For example, a site might offer 200 different games. On first inspection, that sounds great, but when you consider the top casino sites in the UK boast upwards of 400 games, the former starts to look less appealing.

The same goes for payout percentages. All online slots and table games have a theoretical return rate. Naturally, some are better than others, but you won’t know this until you start comparing. For instance, Quickspin’s Big Bad Wolf slot game has an RTP of 97.35% that’s pretty good. Goblin’s Cave by Playtech has a 99.3% RTP. Therefore, in theory, you’ll win more in the long run when you choose the latter over the former. Again, this all comes down to your ability to take a core set of features and compare like for like.

By looking at what Casino X has compared to Casino Y, you’ll build up a list of top-rated UK casino sites and, more importantly, a selection of sites that work for you. As we’ve already said in this online casino UK guide, everything is a matter of personal preference. Just because one group of experts says Casino X is best, that doesn’t mean you’ll agree.

To help you refine the comparison process, make sure you assess these key areas:

  • Game quantity
  • Game type
  • Betting limits
  • Payout percentages
  • Mobile betting options
  • Live gaming options
  • Bonus value
  • Bonus wagering conditions
  • Personal features such as aesthetics, design and usability.

What’s Offered at UK Casino Sites?

  • Impressive Bonuses: All the best UK casinos offer large amounts of bonus cash that’s easy to access.
  • A Large Gaming Lobby: As standard, you should expect a leading UK online casino to offer at least 400 games of all types and, importantly, at all limits.
  • Mobile Betting: Without a mobile app or site, an operator can’t be listed as one of the UK’s finest.
  • Free Play: Casino gaming is all about having fun. Any site that wants to be ranked among the top UK online casino sites needs to ensure this ideal is upheld by offering free play games.
  • Licensing and Security: A UKGC licence, SSL encrypted software, ID checks and anti-fraud measures are all things the best casino sites in the UK have in common.
  • Plenty of Ways to Pay: If you can’t pay, you can’t play for real money. Leading operators will provide a range of secure payment options, including Visa, MasterCard, PayPal and Skrill.
  • Stability: The final area that all highly rated UK casinos shine in is stability. If a site is constantly crashing or taking a long time to load, it will be poorly made and run.