400% Casino Deposit Bonus

400% Deposit Bonus

Are you searching for good online gambling sites offering a 400% casino bonus on registration? No problem! Plenty of good brands are available online. While 400% deposit bonus deals are very attractive for players, you should know a few things when looking for them.

We prepared this detailed guide to help you learn everything there is to know about these deals. On this page, you will find information about the pros and cons of claiming a 400% bonus at UK casino. We will also explain our rating process and list the best gambling operators offering 400% welcome bonus offers. Keep reading to find out more.

400% Casino Bonus List for UK Players

GoldenBet Casino
100% up to £500
  • The Best for GamStop Users
  • £20 Min. Deposit
MyStake Casino
150% Up to £200
  • Not on GamStop
  • £20 Min. Deposit
Bass Win Casino
450% + 375 FS
  • Games Demo Versions
  • For GamStop Players
Rolletto Casino
100% Up to £1500
  • £20 Min. Deposit
  • Non-GamStop Casino
Freshbet Casino
Up to £1500 Welcome Bonus
  • £20 Min. Deposit
  • Extra Loyalty Bonus
Donbet Casino
Welcome Bonus 150% + 50 FS
  • Brand New Casino
  • Licensed by Curacao
Cosmobet Casino
150% Welcome Bonus
  • Active Curacao Licence
  • Accepts GamStop Players
Nine Win Casino
£450 + 250 Free Spins
  • Brand New Casino
  • Accepts GamStop Players
VeloBet Casino
150% on Slot Games
  • Active Curacao Licence
  • €10 Minimum Deposit
Jokabet Casino
£150 + 250 Free Spins
  • Over 6,000 Casino Games
  • Multiple Bonus Offers

Rating Factors for 400% Bonus Casino Sites

Our team reviews different casino sites, and bonus offers daily. We aim to present readers with quality offers to make their gambling experience more enjoyable and exciting. We have developed a rigorous filtering system to ensure you can access only the best deals. Below we will explain our ranking criteria for different 400% welcome bonus offers in more detail.

Bonus Available on the 1st Deposit

The 400% promo would be most convenient for players if offered as a 1st deposit casino bonus. Every player appreciates a little balance boost to start their gambling journey, and a nice match percentage bonus sounds great. This is one of our main criteria, and we only put forward casino sites that offer the bonus for new depositing players.

Great Casino Bonuses Overall

While analysing an online casino website, we check all of its features and elements. Besides a good welcome offer of a 400% match deposit, we also look for other bonuses. We carefully examine the Promotions page of each casino site to see what is on offer. Only the best brands with top casino offers are featured on this page.

Low Bonus Wagering Requirements

The most important part of every bonus deal is its terms and conditions. Even the best promotion can be ruined if its playthrough requirements are too high. We aim to present you with quality casinos with low wagering bonuses. That’s why we thoroughly inspect the bonus terms before placing any operator on our list of recommendations.

Best 400% Deposit Bonus Offers in 2024

With the wide range of available options online, identifying the best UK promo offers can be challenging. But you don’t have to worry about that part because we got you. Our experts scoured the Internet and examined dozens of casinos, and their promo offers for Brits. Finally, we composed the following list of gambling operators providing the best 400% casino bonus deals.

Magic Win Casino not on GamStop

Magic Win Casino

400% + 120 FS

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Magic Win Casino is a popular gambling brand with one of the best 400% deposit bonus offers online. Magic Win casino site operates under the regulations of Curacao. As for its game lobby, it’s filled with colourful titles by Habanero, Ezugi, and more.

Magic Win is an online casino with a 400% bonus with which you can win up to £2,000. Activate the promo with a minimum deposit of £20, but remember that before withdrawing, you must wager it at least 50x. Brits can access a nicely organised game library featuring over 200 slots, table games, and live dealer tables.

MrSloty Casino Non GamStop

Mr Sloty Casino

400% Up to €2000

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Mr Sloty Casino is a great casino operator offering 400 percent casino promos to UK gamblers. The casino Mr Sloty has been around since 2022, so it’s one of the newer iGaming sites for British users.

New players at Mr Sloty can benefit from the 400% slots bonus. Thanks to this bonus deal, you can win up to £2,000; you only need £20 to claim it. Players must meet the 50x rollover requirements to turn bonus money into real cash. What we love about this site is the rich game lobby with 1,000+ games by tens of reputable providers.

Rouge Casino Not On GamStop

Rouge Casino

Up to £2000 on 1st Deposit

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Rouge Casino is a trusted online gambling destination that provides a 400% casino bonus in UK. Rouge casino operator offers a large game library supplied by world-renowned developers. British players can enjoy slot machines, table games, and multiple live dealer options.

The standout feature of Rouge Casino is its casino bonus of 400% + 100 free spins on the Narcos slot. The promo is only available for newbies and is redeemable with a £20 deposit. However, its winnings are subject to 50x rollover requirements. It’s interesting that Rouge Casino has over 500 casino games by well-known providers.

Fruity Chance Casino not on GamStop

Fruity Chance Casino

Up to 600% Bonus

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Fruity Chance Casino is a reputable 400% bonus casino for British players. The game lobby on the Fruity Chance website features a great selection of games from industry leaders like Microgaming and Evolution. You can try various slot machines, card games, and live dealer tables here.

New members can benefit from more than a 400 percent deposit bonus in slots. The welcome bonus at Fruity Chance is spread over the first three deposits. You will get 175% on the first, 200% on the second, and a 225% bonus on the third deposit. Bonuses are activated with €40, €100, and €200 and must be wagered 40x.

WG Casino not on GamStop

WG Casino

200% on Registration

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WG Casino is a well-established online gambling website with a 400% welcome bonus for UK users. Casino WG has been around for over a decade and provides a safe gaming environment and responsive customer support 24/7.

Players looking for a 400 percent bonus at online casinos will be pleased to learn that WG Casino offers much more. The welcome package is for the first three deposits. So, you get 200% on the first, 100% on the second, and 150% on the third deposit. We love how WG Casino offers multiple products, including sports, esports, lotteries, and tournaments.

Top Sites With 400% Casino Bonus for UK Players

As we said, multiple casinos with attractive bonuses are available online. Although we only listed the top five brands above, we must also provide a few other options. Here are more 400% bonus casino operators that you can try your luck with.

Pros and Cons of 400% Deposit Bonus Deals

Online casinos offering 400% welcome bonus promos are highly sought-after by worldwide players, including Brits, and for a reason. While each operator is unique and has different features and offerings, you will notice that these sites operate similarly. They also have positive and negative sides, which we will describe below.

Why People Like Using 400% Casino Bonus Promos

Advantages of 400% Deposit Bonuses

Casino players enjoy playing at 400% deposit bonus casinos for multiple reasons. Besides the fact that you are getting 400% more of your deposit to play with, there are other benefits as well. Take a look at them below.

Often Come in Lucrative Welcome Bonus Packs

One of the main benefits of playing at online casinos with sign-up bonus offers of 400% is that they are very lucrative. Most operators offer players extra benefits in addition to the match percentage. Usually, you will get a welcome package of a 400% match bonus along with free spins on popular slot machines or even loyalty points.

New Players Risk Their Money Less

As a new player at an online casino, you don’t want to spend a lot of money from the beginning. Well, one of the benefits of playing at our recommended casinos is that you get a balance boost immediately after registration. With a 400% bonus on your first deposit, you can start playing and hopefully win awesome rewards.

Often Eligible for Popular Slot Games

Another perk of these promotions is that they are also 400% slots bonus deals. Players can claim and use them to play their favourite slot games like Starburst, Narcos, and Book of Dead. Basically, you don’t have to make any compromises when you get these promos. On the contrary, the best slot games are eligible for them.

Reload Offers Are Present

Lastly, it is very convenient that players can easily get a casino reload bonus at our recommended casinos. It means existing players can benefit from these bonuses and improve their bankroll when making subsequent deposits. Overall, this is an excellent opportunity for all players who want to maximise their casino experience.

Drawbacks of Playing at 400% Bonus Casino Sites

Negative Sides of 400% Bonus Offers

As many advantages as there are for players who decide to claim a 400% deposit bonus in UK, some disadvantages also exist. Below we will list the most significant ones for your convenience.

Some Casinos Grant Only a Total of 400% Bonus

One major downside is that some online gambling sites only give a 400% bonus as a total on the first few deposits. It means you won’t get the full amount the first time you make the minimum required deposit. Instead, you must deposit several times to claim and use the bonus fully.

May Require Promo Codes

Another disadvantage is that you may have to use a promo code to claim the promo. Some online casinos will only let you claim a 400% bonus if you enter a specific bonus code. This requirement is a major inconvenience if you don’t have easy access to promo codes for online casino bonuses or forget to enter them.

Few Casinos With Less Than 50x Rollover

Wagering requirements are the most important element of every bonus. The promo is automatically less attractive for players if they are too high and impossible to meet. The problem with the 400% bonus is that most operators attach rollover requirements of 50x or above. You can only find a few brands offering the promotion with reasonable playthrough requirements.

No 400% Bonuses Without Wagering

There is nothing more attractive for casino players than no wager casino promos. They are convenient for everyone. Players can usually activate them with a small minimum deposit, win, and withdraw their earnings immediately. But you cannot find 400% bonuses without wagering online, which is very disappointing for players.

Popular 400% Welcome Bonus Alternatives

While a 400% first deposit bonus is an excellent opportunity for players, it’s not all you can get from online casinos nowadays. Each site operates differently and has different offerings for players. So, if you have already used this welcome bonus at an online gambling site, maybe it’s time to search for alternatives. We have a few listed below.

How to Start Playing at 400% Bonus Casino Websites

If you are an experienced casino player, you shouldn’t have a problem understanding how to use an online casino bonus of 400%. But if you are a beginner, you will find the following guide helpful.

How to Get 400% Bonus
Time Required: ~ 6 minutes
Tools Required: Phone / Desktop
Supply Required: Some Cash

Look Through Our 400% Deals

Check Bonuses

First of all, you should take a look at our list of the casino bonuses above. We have personally examined each brand paying a lot of attention to details. There is an honest review about every online casino with a 400% bonus for your convenience.


Select the Operator You Like Most

Register at Casino

The next thing you have to do is choose where to play. Carefully read about each brand's features and offerings and pick an online casino with a 400% bonus that best suits you.


Find Your Preferred Payment Method

Choose Billing Option

You are ready to start as a registered member of your preferred casino site. Go to the banking section and see which banking methods are available. That way, you can decide which one is most convenient for you.


Make a Deposit and Claim Your 400% Bonus

Pay and Play

Once you choose which payment method to use, you can make your first deposit. Top up your gaming account with the required minimum, claim your 400% bonus offer, and start enjoying your favourite games with a great advantage from the start.

FAQ: 400 Percent Deposit Bonus Casino Sites

Are 400% bonuses available to players from the United Kingdom?

Yes, you can find plenty of online gambling sites offering a 400% deposit bonus for UK players. You just need to pick one of our listed brands. They are all licensed and reputable operators with multiple gaming options for all players. Hence, you are sure to have an enjoyable experience.

What do I need to do to cash out my winnings from a 400% bonus promo?

Withdrawing your winnings from the 400% bonus promotion is simple and easy. Usually, you will need to use the same payment method you used to deposit. The transaction will be processed as soon as possible. But remember that to turn bonus money into real cash, you must meet the wagering requirements.

What casinos with 400% bonus offers can you recommend, in the first place?

Every online casino giving 400% bonus is unique and suitable for different types of players. But some brands certainly stand out. In this case, those are Mr Sloty Casino and Magic Win Casino. These reputable and fully regulated operators have large game libraries, excellent bonuses, and multiple banking options convenient for Brits.