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Grosvenor

£20 Welcome Bonus Only 5X Wagering

500

Pros:

  • Weekend Cashouts
  • No Pay Limit Cashouts
  • 24/7 Support

Cons:

  • English Only
  • Only Takes Players from GB

Playzee

100% UP TO £300

500

Pros:

  • More than 1,000 games from the best casino game developers in the industry
  • 24/7 customer support (live chat, email)
  • Generous welcome offer followed by daily promotions
  • Available in seven languages
  • Fast and 100% secure payments
  • Mobile-friendly design that is easy to navigate

Cons:

  • Restricted in many countries, including the USA

The Sun

100% BONUS

500

Pros:

  • Live casino
  • Loyalty points
  • Daily drops and wins
  • Mobile-friendly

888

Up to £1500 welcome bonus

500

Pros:

  • Operating since 1997. Experienced and trustworthy casino
  • Mobile-friendly design. Easy to navigate
  • eCORGA certified
  • Variety of tournaments and many different promotions
  • Amazing collection of games

Cons:

  • Restricted in several countries including the USA
  • No live chat available

Aspers Casino

100% Bonus Up to £100 + 100 Free Spins

500

Pros:

  • 24/7 customer support (live chat, email and phone)
  • Mobile-friendly design. Easy to navigate
  • eCORGA certified
  • Variety of tournaments and many different promotions
  • Respected land-based brand

Cons:

  • Withdrawing money can take up to 7 days
  • Restricted in several countries including the USA

BGO

Deposit £10 Win up to 500 Free Spins

500

Pros:

  • The Rewards Hub + many other frequent promotions
  • Some of the most popular slot games from big software providers
  • Different banking options available 
  • Live chat available
  • Innovative features on live betting

Cons:

  • Restricted in several countries including the USA
  • No customer support by phone

Klasino

100% bonus up to £100

500

Pros:

  • Exclusive VIP Club (Frequent promotions, great treatment and specialized personal attention)

  • Mobile-friendly design. Easy to navigate

  • Powered by several leading software providers 

  • Different banking options available 

Cons:

  • Restricted in several countries including the USA. 

WinOMania

150% BONUS up to £100

500

Pros:

  • No withdrawal limits
  • Available live chat
  • Easy to navigate
  • Great selection of slots
  • Mobile-friendly

Cons:

  • Available only via mobile devices
  • Low withdrawal limit

Netbet

Up to 500 Free Spins

500

Pros:

  • Demo version on plenty of games
  • 20+ years of experience
  • Available live chat
  • Unlimited withdrawals
  • Very strong sportsbook

Cons:

  • Restrictions apply to players from certain countries

Betfair

Deposit £10 and get 50 Free Spins

500

Pros:

  • 20+ years of experience in the iGaming industry
  • 24/7 customer support (live chat, email and phone)
  • Frequent promotions for all new and active players
  • Different banking options available
  • Mobile-friendly design. Easy to navigate

Cons:

  • Restricted in several countries including the USA

Win British

Up To 500 Free Spins

500

Pros:

  • More than 600 slots from popular providers
  • Spin the Mega Wheel and win free spins
  • Regular bonuses and promotions
  • SSL-encrypted
  • Mobile-friendly

Cons:

  • Restricted in some countries

Paddy Power

£50 Bonus

500

Pros:

  • 1 - 4h withdrawal time frame (EWallets)
  • eCORGA and TST certified
  • No withdrawal limits
  • Live chat available 24/7
  • Great selection of games

Cons:

  • Restrictions apply to players from certain countries

Leo Vegas

100% up to £400 + 100 Free Spins

500

Pros:

  • 700+ games
  • 0 - 24h withdrawal time frame (EWallets)
  • Mobile-friendly
  • Powered by several leading software providers 
  • Different banking options

Cons:

  • Bonuses available to players from certain countries only
  • Restrictions apply to residents of several countries

Campeon

Up to £300 + 120 Spins

500

Pros:

  • More than 2000 games from all the leading providers
  • Claim different promotions and take part in the Loyalty Program
  • Easily get in touch with their customer support team (live chat, email)
  • Wide variety of deposit options and fast withdrawals
  • Take part in live casino games with live dealers

Cons:

  • Live chat is not available 24/7

Novibet

Up to £250 WB + 40 FREE SPINS

500

Pros:

  • 24h withdrawal time frame (EWallets)
  • 1,400+ games
  • Unlimited withdrawals
  • Great sportsbook
  • Live casino

Cons:

  • Small withdrawal limit
  • Restrictions for several countries

Mansion

100% up to £200

500

Pros:

  • 24/7 customer support (live chat, email and phone)
  • Frequent promotions for all new and active players
  • 150+ Playtech games
  • Mansion app
  • Mobile-friendly design. Easy to navigate

Cons:

  • Restrictions apply to players from certain countries
  • Slow withdrawal time

SlotsMagic

100% up to £50

500

Pros:

  • Available in several languages
  • VIP Lounge
  • Great welcome offer
  • Daily promotions and offers
  • Powered by several leading software providers 

Cons:

  • More deposit methods than withdrawal methods

777

100% up to £200 + 25 free spins

500

Pros:

  • VIP program for the most loyal players at 777
  • eCORGA certified
  • Impressive bonuses and promotions for new and existing players
  • Available in English, Swedish and German
  • Mobile-friendly design. Easy to navigate

Cons:

  • Restricted in several countries including the USA
  • 777 Casino doesn't support live chat

Coral

BET £10 GET £50 CASINO BONUS WHEN YOU DEPOSIT £10

500


Casino Bonus Calculator

We've created this free casino bonuses calculator to help you decide whether the casino bonus that you've chosen is the best for you. The calculator is easy and simple to use and will calculate the total amount you'll need to wager before making a withdrawal.

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Once you find a casino bonus that you like, we highly recommend calculating the wagering percentage, before you deposit and claim that bonus. Sometimes it can be a bit time consuming to calculate the wagering requirements. Here at SlotsWise, we made things easy. Just enter the deposit amount, the deposit bonus percentage and the wagering requirements that a certain casino offers and click on the ‘Calculate’ button. In a split second, you will get the results of the total amount required to be wagered.  

We hope our calculator will help you decide what online casino bonuses to take. Have fun, and make sure to check the best casino offers on this page! Bonuses can change, and percentages and terms and conditions change with them, so it is always nice to stay on top of things.

Casino Bonuses

Casino Bonuses

When it comes to online gaming, online casinos use different methods to attract new players and keep existing ones. One of the main methods that almost all online casinos use is offering different types of bonuses. Casino bonuses are the enticements that keep the players interested. Casinos make sure that the latest and most appealing bonus offers will be displayed when you arrive on their page.

Here at SlotsWise, we are constantly looking for the best offers from the most reliable online casinos. All you need to do is find a site that has the most suitable offer for you and start your gaming adventure. You can even read our reviews on each of the online casinos that we recommend on our site. Casino bonuses change regularly, and we always ensure that the ones displayed here are up to date and accurate. So, on this page, you can check out the best UK bonuses for 2021.

Looking for No Deposit Bonuses?

T&Cs Apply

Types of Bonuses 

Online casinos are really creative when it comes to creating bonuses, and that’s why they come in different shapes and sizes. All types of bonuses have the same goal: to attract new players and keep those who have already started their journey. 

Even though you may come across a few types of casino bonuses, choosing either one opens the door to the roster of online slots, table and card games. Let’s get into detail about the types of casino bonuses.

Welcome Bonuses

The welcome bonuses are also known as sign-up bonuses or first deposit bonuses. No matter the name, this type of bonus has one goal: to attract new players to their casino. A welcome bonus represents the way an online casino greets its new players. Some of the most common types of welcome bonuses include free spins, free bingo tickets, match bonuses, spin the mega reel, scratch cards, and more. 

There are even online casinos that give you the chance to claim a welcome offer without making a deposit. All you need to do to claim a no deposit bonus is to register at a casino that offers this type of bonus. At SlotsWise, we constantly search for reliable online casinos that provide all kinds of welcome bonuses. Please take a look at each one of them, find one you like and then start your journey by claiming that welcome bonus.

Match Deposit Bonus or Reload Bonus

This type of bonus goes by a few different names and is really popular among the players. So, when you go through different online casinos, you might come across a match deposit bonus, matching bonus, deposit bonus or even reload bonus. The name pretty much explains this type of bonus. In short, when an online casino offers a matching bonus, it means that they will match the money that you deposit in the form of a bonus.

There are different matching bonus variations suitable for players that make small, medium and larger deposits. This bonus can be split into three different categories: first deposit bonus, compound bonuses and high roller bonus. Claiming the match deposit bonus is pretty simple and it can be done in different ways. You’ll be given a special promo code to enter after making a deposit, or the bonus might automatically be credited to your account.

Free Spins

Without a doubt, free spins are the most popular form of casino bonus. The free spins are credited to online slot games and allow you to play certain games for free, without risks. They are usually associated with a specific game that is stated in the terms and conditions of the bonus. So, depending on the number of free spins you will be given, you can spin the reels on the previously chosen slot game.

For example, if you are given 20 free spins on the Double Bubble slot, you can spin the reels on that game for 20 times without paying. If you manage to land a winning, the sum will be added to your bankroll. The free spins are played on the maximum number of paylines and on a small bet size. Keep in mind that most of the free spins bonuses usually have wagering requirements.

Loyalty Programme

Most online casinos have loyalty programmes that offer different perks to the most loyal players. Every time you play at the same casino, you collect a certain amount of points. Keep in mind that different games come with a different number of loyalty points. Usually, wagering on a slot game comes with a larger amount of points than wagering on a table game, such as poker.

Players are automatically qualified for the loyalty programme as soon as they use their welcome offer. The more you play, the more points you collect. Depending on the casino, you can exchange the points for free spins, bonus cash or even something else. Loyalty programmes have other benefits, such as custom bonus offers, faster money withdrawals, special casino tournaments, and personalised support.

Wagering Requirements 

No matter if you are new to the online casino industry or you’ve already played your fair share of casino games, you’ve probably heard about wagering requirements. If you have something that’s unclear or some questions about the concept of a wagering requirement, you are in the right place. We will try to give you a detailed explanation of the meaning and use. Also, as you’ve probably seen so far, we’ve added a wagering requirements calculator on this page, so feel free to try it and let us know what you think!

Most of the casino bonuses come with some conditions that each player must meet after they’ve claimed that bonus. So, if the players don’t meet that condition, they won’t be allowed to withdraw the money. That condition that comes with claiming and using casino bonuses is called wagering requirements. In short, a wagering requirement is the number of times that a certain player has to play the bonus money before he/she can withdraw any winnings in cash. 

So, before choosing an online casino because of a certain casino bonus, make sure that you check out the wagering requirements. Each online casino must clearly show this info, and you can most likely find it in the terms and conditions. There are even casinos that offer low or even no wagering requirements. 

You might wonder what is the purpose of wagering requirements and why do they exist. Well, actually, there’s a good reason behind this, and it’s not a way for online casinos to make more money. There are many anti-money laundering regulations and wagering requirements that exist so that the casinos can comply with those set rules and regulations. 

Promo offers

In addition to standard welcome bonus offers that you can claim when you join a casino site, you can also claim a range of other bonuses offered to existing players. These bonuses can be recurring, but they can also be tied to a specific date or event.  Let’s have a look at the different types of promo offers that you can claim at online casinos.

Refer a Friend Bonus

It’s one of the most common casino bonuses offered to existing players. The concept is pretty much self-explanatory. You recommend the casino site to a friend, and then once they join and make their first deposit, you get a bonus. It can be a fixed amount or tied to the amount that your friend deposited on their first deposit with the casino in question.

Game Bonus

It’s a bonus offer that can be used on a particular game, which can be a slot, but also any other of the games offered at a casino. It can be offered when a new game is introduced, as an incentive for people interested in it, but also without a particular purpose. Bonus funds or free spins offered as a special bonus cannot be used on other games.

Live Casino Bonus

This is a casino bonus offered on live casino games. These bonuses are fairly similar to other online casino bonuses. Still, they can be used only on live games generally or the selected live casino games that the bonus offer applies to. There are various types of live casino bonuses available at online casinos: live welcome packages, live reload bonuses, and ongoing promotions for the best live casino games.

Deposit Option Bonus

This casino bonus is tied to a specific payment method accepted at the casino in question. This means that you can claim this bonus once you make a deposit via that payment method. On the other hand, there are multiple instances where a casino wouldn’t let you claim a specific bonus if you’re using a specific payment method, so make sure to read the relevant T&Cs; before claiming it.

Casino Bonuses Conditions

We cannot stress enough how important it is to comply with the conditions that come with a particular casino bonus. Therefore, before you accept the best casino bonus, you must read the terms and conditions that come with it. You have to find out some key information about the bonus before claiming it:

  • What the minimum deposit for the bonus is;
  • Does the bonus have wagering requirements;
  • Is there a time restriction on using the bonus;
  • What games are included in the bonus;
  • Is there a promo code to enter?

Checking for these things about the best casino bonus will help you get the best out of a bonus offer and take advantage of it as much as possible. Don't worry; all of these pieces of information will properly be written in the site's Terms and Conditions section. Online casinos that we offer at SlotsWise are very transparent and don't hide any of this information.

Mobile Bonuses

We live at a time when a lot of players prefer playing casino games on their mobile devices. So, the logical question is – can I claim casino bonuses on my smartphone? The answer is yes. Casinos are aware that most of their players these days would be playing on their mobile devices, so the device makes no difference in terms of the opportunity to claim your bonus.

In fact, some casinos offer special mobile bonuses, available only to players who either register from their mobile device or log in on their mobile device for the first time. Either way, playing your favourite online slots on your smartphone will not stand in the way of you getting your bonus; it can actually improve your chances.

How Do We Review The Best UK Online Casinos 

Bonuses are just one aspect, and albeit they are the most important aspect for many players, we also have a look at a range of other features and elements when reviewing UK online casinos. The process can be summed up as follows.

Our team of experts signs up at a particular online casino and tests the speed, games, accuracy, and security level. They claim bonuses and test them to see if they work properly. All in all, for an online casino to qualify as a top-rated online casino site at SlotsWise, it must go through our in-depth process of reviewing online casinos UK. 

We spent plenty of time developing our criteria to review and evaluate the best online casinos, so here’s how we decide what online casinos make our list.

Since we already went through the bonuses, these are the other elements.

Online Casino Games

Game selection is another important criterion that we consider when we rate the best UK online casinos. The top-rated online casinos offer a complete online casino games selection that includes various slots, table games, live casino, and even some unique games. It’s also important that these games are optimised to work well on desktop and mobile devices. 

Some of the casino games that the best UK online casinos offer are:

SlotsSlots

Without a doubt, slots are the most played online casino games, especially in the UK. Slots are among the easiest games you can play at an online casino, and their popularity has resulted in launching hundreds of online slots sites. So, the best UK online casinos will provide you with hundreds of online slots with different themes and gameplay, from three-reel slots to 3D slots, progressive jackpots and branded slots.

BlackjackBlackjack

Blackjack has always been one of the most popular casino games at all land-based and online casinos. It has been around for a while and some new variants have been introduced, but the essence has always remained the same. For that reason, the greatest online casinos UK will offer a variety of blackjack games such as Blackjack Switch, Blackjack Surrender and Double Exposure Blackjack.

RouletteRoulette

The roulette wheel has been an important part of land-based casinos for hundreds of years. Now, we have online roulette games in different variants such as French, European and American roulette, plus games like Multi Wheel Roulette and Mini Roulette. The most popular UK online casinos will offer such variants of roulette that players enjoy on a daily basis.

Live CasinoLive Casino

The modern innovations and improvements in technology have revolutionised online casinos. Now you can make your online gaming experience look like the one in the land-based casinos and play with real-life professional dealers. The best casino sites in the UK have different live casino games with live dealers, such as live poker, live roulette, live blackjack, and live baccarat.

Payments
Payments

Of course, players want a variety of payment options to make deposits and withdrawals. For that reason, we always test the payment methods available at online casinos, from credit and debit cards to e-wallets like Skrill and Neteller, online payments such as PayPal, prepaid cards such as Paysafecard, and alternatives like Pay by Phone. The trusted UK online casinos offer such payment methods and have written what protocols they use for protecting your funds on their site. It’s also important to check the processing times of the deposits and withdrawals, as well as the accepted limits.

Security
Security

Playing games at online casinos involves real money. For that reason, the safety and security of an online casino is the most important feature you should consider when looking for a place to play. When you find an online casino where you want to join, the first thing you have to do is to check if it’s licenced by the official gambling authority of the country you're living in. Then, make sure to check if the casino is up to date on the latest security technologies and whether it’s certified to provide fair play and honest payouts. You can check these details at the bottom of the casino’s homepage.

Licencing
Licencing

As mentioned above, a reliable online casino must be licenced and regulated by the country's proper authority where it operates. In terms of the online casinos in the UK, always choose to play at a casino that is licenced by the UK Gambling Commission. No site makes it into our top-rated UK casinos list if it doesn’t have a proper operating licence by this regulator. In addition, other regulators ensure that online casinos provide a secure gaming environment for players outside the UK, including the Gibraltar Regulatory Authority, Malta Gaming Authority, Isle of Man Gambling Commission, and more.

Mobile Experience
Mobile Experience

These days, more than 70% of online casino players in the UK prefer to use their mobile devices to play. This means that online casinos have to be mobile optimised to meet players’ expectations. Fortunately, almost all of the best casino sites in the UK have optimised their websites for mobile use, meaning you can play your favourite games from your mobile browser. In addition, some online casinos provide dedicated apps for Android and iOS devices. The UK online casinos that we recommend are easy to navigate on mobile, and you can easily access all games, promotions, banking options, and other features.

Software Providers
Software Providers

An online casino won’t be able to operate if it weren’t for the software providers. Software providers specialise in developing high-quality and innovative games and create their own niche. The best casino sites in the UK have integrated a variety of games from many top-notch software providers, including NetEnt, Microgaming, Playtech, Evolution Gaming, Quickspin, Play N Go, IGT, Nektan, Eyecon, Scientific Games, Big Time Gaming, Red Tiger Gaming, Gamesys, and more. Go through the full list of the most popular and trustworthy software providers available at the best new online casinos in the UK.

Customer Support
Customer Support

Every reliable online casino in the UK has a 24/7 customer support service ready to help you with any issue you have. The most popular methods of contacting customer support at the best UK online casinos are email, phone and live chat. In addition, all of the online casinos that we recommend on this page have FAQ sections that consist of questions that provide answers to some of the most common concerns, including issues of payments, access to your account, current bonuses and promotions, and also the games the casino offers.

Trusted Casino Bonuses from SlotsWise

These days, online casinos provide an increasing list of bonuses and promotions to attract players. At the sites featured here on SlotsWise, you can find any type of bonus that fits your specific needs. New players who want to join an online casino can benefit from the generous welcome bonuses that the sites offer. On the other side, regular players can boost their accounts with some excellent bonuses waiting for them. Plus, no matter if you're a new or a regular player, it's always a great idea to be part of a Loyalty Program that will reward you with impressive prizes.

At SlotsWise, you have a choice of vast and flexible bonuses at the most popular online casinos, so you can easily find the one that suits you the best. Feel free to check the featured bonuses and make your pick. Happy gaming!