Best Casino Bonuses in the UK | Top UK Online Casino Bonus Offers

We’ve rounded up the best casino bonuses for UK players - and we’ve also listed the top online casinos where you can sign-up and grab these offers right now.

Roll-up, roll-up - we’ve got the best casino bonuses in the UK for you to take a look at!
Roll-up, roll-up - we’ve got the best casino bonuses in the UK for you to take a look at!

Best Casino Bonuses for UK Players and Where You Can Find Them (bonus spins, No Deposit & More)

Roll-up, roll-up - we’ve got the best casino bonuses in the UK for you to take a look at!

Like you, we firmly believe that the key to a good online gambling experience is one in which the site spoils us with bonuses and promos. From a kick-ass welcome bonus that starts the party in the right way to bonus spins, no deposit offers, and weekly specials, there’s no better way to extend your bankroll and have lots of fun online.

The saying "the house always wins" isn't just a catchphrase as it should help shape your wagering adventure

That’s why we’ve rounded up a selection of the very best casino bonuses that are available to UK players right now.

In this article, we’ll be outlining the best casino bonus offers you can claim right now, how they work - and where you can claim them. We’re starting with our top pick, Grosvenor.

Sounds good? Let’s begin.

Best UK Online Casino Bonuses

Are you suffering from a gambling problem, or do you know someone that does?

Grosvenor: Best UK online casino bonus overall

Mansion: Best welcome bonus

Genesis: Best bonus spins bonus

PlayOjo: Best no-wagering welcome bonus

mFortune: Best no deposit welcome bonus

SunVegas: Best loyalty rewards

Mr Spin: Best new game bonuses

Magic Red: Weekly magic spins bonus

Casino.com: Great happy hour bonus offers

Casino Lab: Generous monthly bonus

1. Grosvenor - Best UK Online Casino Bonus Overall

FIRST DEPOSIT ONLY. MIN DEPOSIT £20. MAX BONUS £50. 30X WAGERING. CONTRIBUTIONS DIFFER FOR SOME GAMES. Full T&Cs Apply.

Pros

Low wagering requirements

Over 600 casino games

Four mobile apps

Sports betting available

Cons

Dark site design

If you want the chance to win cash prizes and bonus spins every day of the week, that’s exactly what you’ll get at Grosvenor. It is one of the UK’s oldest and most established sites that treats you to weekly promos like daily jackpots, daily specials, and weekly bonus spins.

Bonus Offer: 4.8/5

Grosvenor’s welcome bonus offer can get you a 100% deposit match bonus up to £50 if you opt in. Interestingly, while slots contribute 100% to the wagering requirement (as usual), Dream Catcher contributes 50%. Anyone up for spinning the wheel to try their luck?

Grosvenor’s unique bonuses don’t stop there.

It’s actually unusual for online casinos to offer jackpot bonuses. Usually, you can scoop a progressive jackpot if it hits when you’re playing the slots.

But at Grosvenor, you can take part in their so-called Inferno Jackpots every day of the week, a unique promo that gives you the chance to win a chunk of the £50,000 jackpot.

Other weekly specials include Tuesday’s Bonus Vault, which releases its winnings to anyone who guesses correctly how much is inside it, and weekly drops & wins, where the jackpot often goes beyond £500,000.

There’s also a slot of the week at Grosvenor, which changes each Monday, and which lets you compete for more bonus spins.

Game Variety: 4/5

With around 700 games, Grosvenor certainly isn’t short of choice. Here, you can play just over 600 slot games, including the popular titles Rainbow Riches, Starburst, and Book of Dead, a range of drop & wins, live game shows, card games, and a very solid selection of live dealer games.

There’s also a separate section for poker games.

Sportsbook fans will love it here too. Be warned, however, that Grosvenor imposes a fairly strict cap on your maximum stake when you first sign up. This is either down to liquidity reasons or to gauge the betting habits of new players.

User Interface: 4/5

On the face of it, Grosvenor boasts a professional user layout. However, the fairly sombre colours are hardly exciting and can seem too professional to some bettors.

Moreover, while everything is neatly organised and the game software works excellently, there are one or two minor issues with the site that may frustrate players. For instance, when we first placed an in-play sports bet, it took us a while to find the bet so that we could check the cash-out availability.

Reputation: 4.9/5

Grosvenor is one of the UK’s oldest and most-loved gambling brands. Land-based Grosvenor Casinos have been around since the 1970s, with many-a-night being spent playing bingo, roulette, and card games with mates.

The online version of Grosvenor casino was launched in 2007 and continues to be one the most trustworthy UK online casino sites.

Overall: 4.7/5

There are a great many perks that come with signing up to Grosvenor, one of which is the chance to become a Grosvenor member. Doing so entitles you to discounts, exclusive promos and fast-track entry into their land-based venues.

There are also four different apps to download - one for the casino, one for the live dealer section, one for the poker room and one for the sportsbook.

2. Mansion - Best UK Casino Welcome Bonus

18+: Welcome bonus applies to new customers only. Minimum deposit £20. Maximum bonus £200. Wager 40x before withdrawing. Game weighting applies. 30 day expiry. Payment restrictions + T&Cs Apply.

Pros

100% deposit match up to £200

1,200+ games

Live casino ideal for high rollers

Cons

Website needs a revamp

Mansion casino has been around since 2003 and it has definitely established a reputation as one of the best online casinos in the UK. It continues to serve UK players not only with excellent games but with incredible bonuses as well – starting from its welcome bonus package for new players.

Bonus Offer: 4.9/5

New players at Mansion get a generous deal when they sign up for an account. There’s a 100% match up to £200 that comes with a 40x wagering requirement. It’s a pretty sweet deal to help new players get settled in.

Aside from its welcome bonus, Mansion also offers Drops and Wins that go as high as £500,000.

Game Variety: 4.9/5

Since we’ve already spoken about the sports betting section, we may as well start with the games variety here. There are currently 1,280 games available at Mansion, over 800 of which are top quality slots from highly reputable software providers.

Overall, it’s an excellent selection. There are daily jackpots, while some of the table games include Quantum Roulette, Grand Baccarat, and Speed Blackjack.

The maximum and minimum stake is clearly labeled for the live dealer games.

User Interface: 4/5

Mansion looks professional enough, with its black, white, and red colors, but it also looks a tad dated and doesn’t scream fun. Still, it’s horses for courses. Some players will prefer the fairly serious site design, while others might not. But Mansion does at least spice things up by plastering its daily drop & wins and ads for promos all over its homepage.

The site layout is simple and quite easy to navigate. Overall, it could use a little touch up but other than that, we’re quite satisfied with Mansion’s user interface.

Reputation: 4.8/5

Mansion was founded almost 20 years ago, it’s fully licensed and, as the former shirt sponsors of Tottenham Hotspur FC, it’s easily one of the most recognisable UK gambling sites and brands. The site is safe and secure to use. Mansion has never run into liquidation issues, and indeed it welcomes high rollers.

Overall: 4.6/5

Mansion currently accepts over 10 payment methods, including PayPal and Neteller, but hasn’t yet jumped on the crypto bandwagon. Minimum deposit is $10 for some methods while maximum deposit can go as high as $50,000.

3. Genesis - Best UK Casino Bonus Spins Promos

18+. New players Only. £10 min deposit. £5 max bet using bonus. 40x wagering applies. Bonus valid for 14 days. bonus spins valid for 72 hours from credit. Max bonus spins winnings £100. Ewallets excluded. Full T&Cs Apply.

Pros

100% deposit match up to £100 welcome offer

300 bonus spins part of the welcome package

1,800+ games

Unique galaxy theme

Several bonus spins bonuses up for grabs

Cons

Would benefit from more online poker games

Genesis has the title of one of the best themed UK casinos out there but it offers a lot more. Aside from its extensive games library, the site also offers several bonuses that offer bonus spins to its avid slots fans.

Bonus Offer: 4.7/5

As mentioned, new players at Genesis are entitled to a 100% up to £100 welcome offer. You’ll also be treated to a whopping 300 bonus spins to be used on Starburst. The minimum deposit for this offer is £10 and the wagering requirements are set at 40x, which is a tad higher than average, but still very decent.

Aside from the bonus spins that you get upon signing up, there are other promotions that slots fans will appreciate. There’s a bonus spins for 30 seconds promo when you play Gonzo’s Quest Megaways. Lightspeed Monday is another promo that grants you more bonus spins when you wager £10 or more from Thursday to Sunday.

Game Variety: 4.4/5

Genesis currently has an arsenal of 1,800+ games. Almost 1,700 of these are online slots, one of the reasons why the site is generous when it comes to bonus spins bonuses.

While a huge chunk of its library is dedicated to slots, there are still lots of other games to choose from here. Alongside slots, you can also play 70+ blackjack variants, which means that anyone who fancies themselves as a skilled card sharp should find something they like. There are 9 poker variants as well as 50+ roulette games and a handful of live dealer games.

User Interface: 4/5

Genesis has a galaxy theme that looks very fetching. Indeed, site design and the user interface are two of Genesis’s biggest strengths, with the developers not holding back when it comes to creating a site that not only looks aesthetically pleasing but which is also super intuitive. It works really well even on mobile.

Reputation: 4.4/5

Having been launched in 2018, Genesis is still a relatively new online gambling site. But it’s owned by Genesis Global Limited, which also owns a range of other reliable and well-known online casino sites.

Indeed, the name “Genesis” is practically synonymous with online gambling, and as such, we feel that Genesis, despite only being around for less than five years, will soon be seen as one of the UK’s biggest casino sites.

Overall: 4.3/5

There are plenty of things to love about Genesis. It’s mainly a slots site and it’s not surprising that its promotions are centered on those games. Still, it does not fail to deliver variety, not only with the games it offers but also with the promotions that players can take advantage of.

4. PlayOjo - Best No Wagering Welcome Bonus in the UK

18+. First time depositors only. Min. deposit £10. Maximum amount of bonus spins is 50. OJO's Reward and Game Play Policy Applies.1 Welcome Package per player. Players cannot claim both Casino and Bingo bonus.

Pros

Excellent no wagering welcome offer

3,000+ games

10 bingo rooms

13 payment methods

Cons

Some deposit fees apply

PlayOjo’s no wagering welcome bonus is actually a rarity in the online gambling world - and it takes our top spot as the best casino bonus for no wagering requirements. While it’s not the grandest welcome bonus package out there, the no wagering policy means you can withdraw your winnings anytime.

Bonus Offer: 4.7/5

The great thing about PlayOjo’s no wagering welcome offer is that there are also no maximum wins. This offer, however, does have its pros and cons. Its biggest pro is obviously being able to withdraw your winnings anytime and there’s no limit to how much you can win from this bonus.

On the flip side, this isn’t a cash bonus - it’s instead 50 bonus spins to be used on Book of Dead. However, you get to play for real cash, and whatever you win is yours to keep.

Game Variety: 5/5

On top of its exciting welcome offer, Playojo spoils its players with over 3,000 games, including jackpot slots like Age of the Gods and Fluffy Mega Jackpot, as well as megaways slots and popular classic slot games.

There’s a separate section for bingo games, where players can check-out 10 different bingo rooms and grab a 10% cash back bonus on all bingo games. On top of that, there are 50+ live dealer games at PlayOjo, too. It’s worth mentioning here that high rollers are welcome, with some of the live tables accepting £10,000+ bets.

User Interface: 4/5

PlayOjo’s user interface is a bit like marmite - you’ll either love it or hate it. Most players love the fluffy, colourful site design, and it’s clear that this is a gambling site aimed at those who want to have a bit of fun. Its vast games library can be a bit overwhelming, though. Having all of these options may be too much especially for newbie players who are still exploring.

Reputation: 4/5

Despite being a relatively young site, PlayOjo has spent so much on marketing itself that it’s now one of Britain’s biggest and most well-known online gambling sites. It might not have as big a reputation as even more established casinos, but it’s certainly one that we trust.

Overall: 4.3/5

PlayOjo is about as British as online gambling sites come these days, and to that end has a number of themed slots and bingo games, such as Masked Singer UK Bingo. Banking here is quite smooth with several fast and reliable options including Paypal, Skrill, and Neteller on offer.

The casino also spent a lot of its resources making sure their app serves its purposes of allowing UK players to enjoy their favorite casino games anytime, anywhere, and without any hassle.

5. mFortune - Best UK No Deposit Welcome Bonuses

18+. New players only. 7 day expiry. Verification required. 20x wagering requirement. £50 Max withdrawal from bonus win. Full T&Cs apply.

Pros

£10 no deposit welcome offer

Exciting daily jackpots

Bingo available

Cons

Fees on £10 or less withdrawals

mFortune may not have the biggest library of casino games out there but it definitely knows how to welcome its players right. A no-deposit bonus to help players get settled in and try out available games is definitely something to get excited about.

Bonus Offer: 4.5/5

No deposit welcome bonuses are eye-catching because they come with fairly advantageous terms and conditions. You just need to create an account and grab the bonus without even making an initial deposit first.

That’s the score here at mFortune. Just create an account to unlock a free £10 bet to be used on whatever game you like. The only catch is that you will need to meet the 20x wagering requirements (very fair) before any winnings are yours.

Maximum winnings are capped at £50, and - as mentioned - we think this no deposit bonus stands out because it’s actually unusual for such a bonus to offer free cash (no deposit bonuses typically are limited to extra spins.

Speaking of bonus spins, though, you can swerve the no deposit bonus and grab a 200% match deposit bonus that also comes with 100 bonus spins instead. It’s up to you.

Game Variety: 3.5/5

One of the things about mFortune is that it’s very focused on jackpot slots and games.

When you arrive on the homepage, you’ll see the total current jackpot labeled clearly at the top of the screen.

Underneath, you’ll see rows and rows of all the latest and most popular jackpot slots, including Pick A Pot O’ Gold, Immortal Souls, and Money Grows on Trees. The jackpot for each game is listed underneath their respective thumbnails.

Bingo is another mFortune specialty, and you can indeed grab free bingo tickets on the regular.

On the other hand, while there are a handful of roulette and blackjack games, card, table, and skill games aren’t really what mFortune excel at.

User Interface: 3.8/5

mFortune is one of those slots sites that splashes its slot games all over its homepage. That’s not exactly a bad thing - at least it makes it easy for you to find a slot game that catches your eye.

It’s also a super colourful casino where everything is clearly laid-out and easy to find.

We like that when you click on the “casino games” section mFortune lists all the latest jackpot winners. Not only do they include the total amount they won, they also include their stake. It’s just a neat way of showing you what can be won off the back of very low stakes.

Reputation: 4/5

mFortune Casino has been around since 2007, and has therefore entered its fifteenth year. It’s owned and operated by ITG, a company that runs a number of other dependable UK online casino sites and has developed a reputation for being a favourite among those who want to win life-changing jackpots.

Overall: 4/4

With millionaire-making jackpots, daily winners and bingo rooms, mFortune is very much aimed at those who just want to strike it lucky. If, on the other hand, you want to play poker or blackjack, you might be suited better elsewhere.

For everyone else, you can also play mFortune on the move via the app. Payment options are a bit limited but processing times are well within industry standards.

Runners-up:

How We Chose the Best UK Casino Bonus Offers

Casino Bonus Offer

The casinos we added to our review guide all excel for specific bonuses – deposit bonuses, weekly offers, or sportsbook bonuses. But aside from the value of each bonus that these casinos offer, we also took into consideration the terms and conditions that apply. We checked the wagering requirements and maximum winnings that are attached to each bonus.

Game Variety

Because a casino is much more than just its bonus offers, we made sure to add online casino sites that not only offer excellent bonuses, but which also offer a wide-range of games for you to play. We wanted to include variety so you don’t get stuck playing the same games over and over. We also looked at the software providers that supply these games to each online casino.

User Interface

Another important consideration when selecting the best casinos with the best bonuses was the casino sites user interface. All the casinos we chose are easy to navigate, they work excellently on both desktop and mobile devices, and they load quickly.

Reputation

Lastly, you can be sure that your bonus balance won't go awry with any of the casinos we've selected. This is because they're all fully-licensed, reputable, safe, and secure to use. Some of the casinos on top of our list have been around for more than a decade, a testament to their performance and credibility as online gambling platforms in the UK.

Best UK Casino Bonuses: FAQ

Why Should I Use a Bonus at a UK Casinos?

The real question is, why shouldn’t you? Casino bonuses grant you extra funds to play around with (or extra spins)! Given that each bonus comes with bonus terms and conditions you need to consider carefully, it doesn’t change the fact that it gives you some advantage as you get settled in, especially if you’re trying out a new gambling site.

What Is the Best Casino Bonus in the UK?

There's no universal best online casino bonus, but the best types of bonuses include welcome offers, such as the one available at Genesis Casino, and weekly specials, such as those up for grabs at Grosvenor Casino.

How Do I Claim a Bonus at a UK Casino Site?

Most bonuses are available on the casinos website, and you can usually just grab them by opting-in. This is especially the case with a deposit bonus or extra spins. Some, however, might require a promo code instead.

You must also make sure you're eligible for a bonus before you grab it. For example, you can only claim a welcome bonus if you're a new customer.

What Are Wagering Requirements?

Wagering requirements are the exact amount you need to bet before any bonus money or free spin winnings are yours.

For instance, if the wagering requirements for an active bonus are 30x your deposit, and if your deposit is £100, you must meet 30x wagering requirements in order to trigger any casino games bonus winnings, which in this case would be £3,000.

What is a Bonus Spins Promotion?

A bonus spins bonus is offered by multiple online casino sites, and it's essentially what it sounds like - extra spins that you can use on specific slots. These will usually come with a wagering requirement (but not always), and the beauty is that, while you can win real money, you can't lose anything.

What’s the Maximum Bonus I Can Win?

Total bonus cash that you can win depends entirely on the type of bonus bets, as well as the casino you sign up to. Just make sure to read the terms and conditions thoroughly before grabbing any bonus.

What Is a Max Bet?

A max bet is the most you can bet on a casino game, either with or without a bonus.

Practically all casino sites have maximum bet amounts, and this is to protect the casino itself from going bankrupt, as well as to protect the players from losing control.

What Is a Promo Code?

A promo code (otherwise known as a bonus code) is a piece of text that you sometimes need to enter in order to trigger a bonus (usually a deposit bonus). A promo code can usually be found on the casinos website, as well as bonus code websites.

When Does a Bonus Expire?

Bonus funds must be used by 7 days - typically. However, each casino and each bonus has different terms and conditions about when bonus funds must be used (and the same for when bonus spins expire).

What Other Types of UK Casino Bonuses Are There?

As well as the aforementioned bonuses we've listed above, other kinds of bonuses you can look out for include reload bonuses, cashback bonuses, extra spins, and VIP programs.

Summary of the Best Casino Bonuses UK Players Can Get Today

Grosvenor - Excellent weekly bonus in place with very low wagering requirements, diverse games library from top game software providers, convenient banking methods available.

Mansion - Simple and slick website design, generous welcome bonus for new players, extensive games library from huge game software companies, decent banking options with industry standard payout times.

Genesis - Best online casino theme with an intuitive site design, several bonus spins bonuses available for slots fans, decent wagering requirements, diverse and extensive games library, convenient and flexible banking with over 20 options available.

PlayOJO - Biggest games library on our list, unique welcome offer with bonus spins, no wagering requirements and no max wins, colorful and exciting website layout, ideal for slots and bingo fans.

mFortune - Perfect site for players looking for a refreshing gambling experience, unique games on offer which you can’t find elsewhere, generous no deposit bonus that includes a cash bonus and not just extra spins, low wagering requirements.

How to Claim One of the Best UK Casino Bonuses

Signing up to top online casinos in the UK is pretty straightforward, but it might not be the case for some newbie players out there. To help you out, here’s a step-by-step guide on how you can get started at Grosvenor.

Step 1: Create your account.

Go to Grosvenor’s site and look for the “Join Now” button at the top right corner of your screen. When you click on it, you will be asked to give an email address. Once your email address is confirmed to be an active one, you will be asked to provide additional information such as username, password, PIN, and some personal details. Fill those in and click “Register”.

Step 2: Verify your account.

After providing the necessary details, you will be asked to upload documents as proof of your identity. You need to provide a personal ID (Passport, Driving License etc.) as well as proof of address (dated within the past three months).

Step 3: Fund your account.

Once your account is verified, you can deposit some funds into your account. Don’t forget to check the welcome bonus available and the minimum deposit that is set for you to qualify for it.

Ready To Take Advantage of the Best Casino Bonuses in the UK?

These are some of the most eye-catching bonus offers that are available right now at some of the UK’s top-rated casinos. Whether you want to start off with a deposit bonus, or whether you’d rather test the waters with a no-deposit bonus, there’s something here for everyone.

And while Grosvenor’s weekly specials certainly caught our eye thanks to their huge jackpots and extra spins, it’s important that you base your decision on the bonus and the site.

Whatever you choose to do, just remember that online gambling is supposed to be fun, and to that end, we hope you gamble responsibly.

DISCLAIMER: You probably don’t need us to tell you that any form of gambling comes with risks and should not be undertaken as a solution to solve your financial troubles. It’s worth remembering the phrase…the house always wins!

If you suffer from a gambling problem or suspect somebody you know does, then we strongly suggest that you call the National Gambling Helpline at 0808-8020-133 to talk with an advisor for help and to make gambling safer for you or your loved ones. Remember all gambling sites and guides are 18+ only.

Casino sites listed on our site may not be available in your region. Check your local laws to ensure online gambling is available and legal where you live. Our reviews are independent and reader-supported and we may receive commissions for recommendations made in our websites guides, this does not affect our rankings methodology and we always recommend sites we believe will provide the most enjoyable gaming experience.

Visit these organizations for free gambling addiction resources: