400% Deposit Casino Bonuses

By Ville Saari. Edited by Elmo Kukkonen and Milla Gustafsson. Updated:

Discover 400% deposit bonus offers in the UK. On this page, we have listed all the 400% casino bonus offers you can get right now.

The bigger the bonus is, the rarer it is, and this is true about 400% deposit bonuses. However, you can still find first-deposit bonuses that quintuple your deposit.

List of Sites With 400 Casino Bonus - February 2026

Casino sites with 400% match bonus offers are extremely rare in today's online gambling industry. We have listed and tested offers that are as close to 400% deposit bonus offers as possible here on this list.

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  1. 200%/£50 + 20 bonus spins
    1st deposit bonus
    TheOnlineCasino review »
    1st deposit bonus 200%/£50 + 20 bonus spins
    Wagering requirements 10x (B)
    Forfeitable 1st deposit bonus Yes
    Minimum deposit for bonus £10
    Bonus code TOC20
    TheOnlineCasino is an easy-to-use casino site. It runs on the ProgressPlay platform, meaning it is packed with good games, solid customer support and new players are greeted wit... TheOnlineCasino review »
    Play here »
    Visa
    Mastercard
    PayPal
    Online bank transfer
    Pay by Mobile
    Skrill
    Neteller
    Payz
    Neosurf
    +2
    New Players Only, 18+. Wager from real balance first. 10x wager the bonus money within 30 days and 10X wager any winnings from the free spins within 7 days. Contribution varies per game. Available on selected games only. Wager calculated on bonus bets only. Bonus offer and any winnings from the offer are valid for 30 days / Free spins and any winnings from the free spins are valid for 7 days from receipt. Max conversion: 1 time the bonus amount or from free spins: £20. Min Deposit £10 required. Limited to 5 brands within the network. Withdrawal requests void all active/pending bonuses. Excluded Skrill and Neteller deposits. Full terms and Bonus terms apply. GambleAware.org.
  2. 200%/£20 + 50 bonus spins
    1st deposit bonus
    Betvictor casino review »
    1st deposit bonus 200%/£20 + 50 bonus spins
    Wagering requirements 10x (B)
    Forfeitable 1st deposit bonus Yes
    Minimum deposit for bonus £10
    Bonus code
    With a long history spanning over two decades, BetVictor is a well-established UK brand that needs few introductions. Many gamblers might associate the brand mainly with its ... Betvictor casino review »
    Play here »
    Visa
    Mastercard
    Apple Pay
    Google Pay
    Wire transfer
    18+ New customers only. Opt in, deposit & wager £10+ on selected games within 7 days of registration. Get £20 in Casino Bonus Funds (10x wagering. Max withdrawal £250) + 50 Free Spins for Age of the Gods: God of Storms 3. 30 days expiry. Full terms and Bonus terms apply. GambleAware.org.
  3. 200%/£20 + 50 bonus spins
    1st deposit bonus
    Mecca Games casino review »
    1st deposit bonus 200%/£20 + 50 bonus spins
    Wagering requirements 10x (B)
    Forfeitable 1st deposit bonus Yes
    Minimum deposit for bonus £10
    Bonus code
    Mecca Games comes across as a site pretty clearly aimed at slot fans. The game selection includes just over two thousand titles. The casino also promotes Megaways and Jackpot... Mecca Games casino review »
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    Visa
    Mastercard
    PayPal
    Apple Pay
    PaysafeCard
    18+, New players only. Min Deposit £10 (excl. PayPal & Paysafe). £20 bonus (x10 wagering) on selected games. Max win £50. Plus 50 Free Spins (10x wagering). Max win £50. Full terms and Bonus terms apply. GambleAware.org.
  4. 200%/£20
    1st deposit bonus
    Mr Mobi Casino review »
    1st deposit bonus 200%/£20
    Wagering requirements 10x (B)
    Forfeitable 1st deposit bonus Yes
    Minimum deposit for bonus £10
    Bonus code
    In 2016, Mr Mobi joined the ranks of UK online casinos. The then newcomer offered players an easy-to-use casino experience with good mobile support. Mr Mobi has since become ... Mr Mobi Casino review »
    Play here »
    Visa
    Mastercard
    PayPal
    Apple Pay
    Pay by Mobile
    Skrill
    Neteller
    Payz
    PaysafeCard
    +2
    New players only. Wagering from real balance first. 10X wagering the bonus money within 30 days. Contribution varies per game. Available on selected games only.  The wagering requirement is calculated on bonus bets only. Bonus offer and any winnings from the offer are valid for 30 days. Max conversion: 1 time the bonus. Limited to 5 brands within the network. Withdrawal requests void all active/pending bonuses. Excluded Skrill and Neteller deposits. Please gamble responsibly. Full terms and Bonus terms apply. GambleAware.org.
  5. 150%/£100 + 50 bonus spins
    1st deposit bonus
    Dazzle Casino review »
    1st deposit bonus 150%/£100 + 50 bonus spins
    Wagering requirements 10x (B)
    Forfeitable 1st deposit bonus Yes
    Minimum deposit for bonus £20
    Bonus code DZLBASS
    Dazzle Casino is home to many interesting casino games provided by the best game suppliers. The casino does not only offer good games, but also makes sure their game lobby is ea... Dazzle Casino review »
    Play here »
    Visa
    Mastercard
    PayPal
    Online bank transfer
    Apple Pay
    Pay by Mobile
    Skrill
    Neteller
    Payz
    +8
    New UK players only, 18+. Minimum deposit: £20. Bonus: 150% up to £100 + 50 Bonus Spins. Wagering requirement: 10x bonus. Bonus valid for 30 days. Winnings cap: 1x initial bonus. Skrill and Neteller deposits excluded. Game weightings apply. Please gamble responsibly. Full terms and Bonus terms apply. GambleAware.org.
  6. 150%/£50 + 15 bonus spins
    1st deposit bonus
    Mr Super Play casino review »
    1st deposit bonus 150%/£50 + 15 bonus spins
    Wagering requirements 10x (B)
    Forfeitable 1st deposit bonus Yes
    Minimum deposit for bonus £10
    Bonus code
    Mr Super Play has been operating since 2017, and it has everything that you need for a good casino experience. As you enter the site, you will instantly stumble upon a variet... Mr Super Play casino review »
    Play here »
    Visa
    Mastercard
    PayPal
    Online bank transfer
    Apple Pay
    Pay by Mobile
    Skrill
    Neteller
    Payz
    +4
    New players only. Wagering from real balance first. 10X wagering the bonus money within 30 days. 10x wagering the winnings from the free spins within 7 days. Contribution varies per game. Available on selected games only.  The wagering requirement is calculated on bonus bets only. Bonus offer and any winnings from the offer are valid for 30 days. Free spins and any winnings from the free spins are valid for 7 days from receipt. Max conversion: 1 time the bonus amount or from free spins: £1.50. Limited to 5 brands within the network. Withdrawal requests void all active/pending bonuses. Excluded Skrill and Neteller deposits. Full Terms apply. Full terms and Bonus terms apply. GambleAware.org.
  7. 150%/£15 + 30 bonus spins
    1st deposit bonus
    Parimatch casino review »
    1st deposit bonus 150%/£15 + 30 bonus spins
    Wagering requirements 10x (B)
    Forfeitable 1st deposit bonus No
    Minimum deposit for bonus £10
    Bonus code
    Parimatch is an online casino that opened its doors to the UK market in 2020. The brand's story goes as far back as the early 90s; it was originally established in 1994 in Kyiv,... Parimatch casino review »
    Play here »
    Visa
    Mastercard
    Apple Pay
    Google Pay
    18+ New customers only. Opt in, deposit & wager £10 on selected games within 7 days of registration. Get £15 in Casino Bonuses for selected games (10x wagering, max withdrawal £150) + 30 bonus spins for 3 Lucky Hippos. 30 days expiry. Max redeemable £150. Full terms and Bonus terms apply. GambleAware.org.

UK casino websites with 400% deposit bonuses

Best UK Casinos With 400% Deposit Bonus

Our experts have highlighted the very best 400% casino promotions. These casinos will boost your deposit with a deposit match offer and provide you with fast payments, a great selection of slots and live dealer games, well-working mobile usability and an overall top-notch experience.

The best 400% deposit bonuses are listed below:

  1. BetVictor - 200%/£20 + 50 bonus spins

1. BetVictor

BetVictor Casino logo

The best 400% bonus casino is BetVictor.

While the BetVictor bonus is not exactly 400%, it is the best you can get right now at 200%. There are so few of these bonuses that we can't even show you a single one.

The reason why we picked this one as the top offer is because of its versatility. This bonus gives you something for slots, live casino games and game shows. The two latter categories are something you don't see often.

BetVictor is a famous casino brand that made the jump to online gambling very early on. They have been honing their skills and updating the casino site to better meet players' demands. It is no surprise that our experts gave it a high rating in the review of BetVictor Casino.

The bonus here might not have a huge maximum, but it does pack quite a punch. It is the most you can get at the moment with a £10 deposit.

3.9
Bojoko rating
🎁 Bonus 200%/£20 + 50 bonus spins
❌ Drawbacks Small maximum bonus
✅ Best Features Large international brand, good customer support, all-in-one casino

Play at BetVictor »

How We Rate 400% Casino Bonuses

Illustration with a checkmark and text 'Rating factors'

We rate 400% bonuses by calculating the total value of the offer and checking the bonus terms, wagering requirements, withdrawal limits, and maximum bonus amount. After this, we compare the bonus to other current offers and industry benchmarks to give you a complete overview.

Our seasoned casino experts have been reviewing casinos and bonuses for years and are very familiar with what is available in the UK.

When testing and reviewing casinos and their bonuses, these are the features we look for:

You can learn more about our casino reviews and what is important by reading our online casino review guidelines.

What Is a 400% Casino Bonus

A 400% casino bonus is a promotional gift a casino gives you when you make your first deposit. It is relative to your deposit, and it gives you 400% of the amount in bonus money that you deposit. The bonus will also state the maximum amount in pounds that it can be.

The most common bonus offer in UK casinos is 100%, so getting a 400% deposit bonus is a big deal. These offers are very rare, and a casino website with such an offer is not easy to find.

Big bonus percentages often mean that the maximum bonus amount is small. This is why you often see these relatively small casino sign up offer deals that then pack a huge punch.

400% Deposit Bonus Calculator

Use our 400% deposit bonus calculator and see how wagering requirements and other features may affect your bonus.

400% Deposit bonus calculator
400% Match bonus Your deposit will be matched 400% up to the maximum bonus amount
£ 500
£ 0
100 %
7  days

Your deposit:

£ 0

Bonus amount:

£ 0

Total player balance:

£ 0

Wagering requirement:

£ 0

Effective wagering:

£ 0

Time limit:

0  days

New UK Casinos With 400% Deposit Bonus

New casinos are always interesting, and from time to time, fresh ones can offer you as high as a 400% bonus. These offers are not easy to come by, which also means that finding new casino websites that have 400% bonuses is not something that happens often. New casinos often go for smaller high-value bonuses.

There are currently no new UK casinos that have 400% deposit bonuses or other very big bonus offers. In case any new ones come up, we will list them here on this page.

How To Claim a 400% Deposit Bonus

Find a casino site with a 400% bonus from our list

1. Find a 400% casino bonus from our list

Here, we have listed tested and reviewed casinos with a 400% welcome bonus. Take a look at the casino list, see what is available for UK players and pick your favourite.

Read the casino review

2. Read the casino review

After picking a casino, you can read the casino review and see what our seasoned experts thought about the site. Let their experiences on the site help you make a decision.

Go to the casino

3. Go to the casino

On every casino review, there is a big green ‘PLAY HERE' button that takes you straight to the casino. If the bonus is an exclusive special offer, then this button is your way to get that deal.

Register and claim your bonus

4. Sign up and claim your bonus

When you get to the casino, you need to sign up and create a casino account. Just fill in the required information, and you are ready to deposit and claim your bonus. Just make sure you read the bonus terms.

 

Find 400% casino bonuses

Terms and Conditions

Like all other bonus offers, 400% casino bonuses have their own terms and conditions. They are basically the same as with smaller bonuses, but certain numbers might be tweaked a bit differently.

Here are the terms that are especially important:

By knowing these terms, you are ready to handle most of the bonus offers on the market. It is still always good to double-check the bonus terms and see what each bonus offer is all about.

Pros and Cons of High Bonus Percentages

Even though big welcome bonuses look good, they do have their own pros and cons. We noticed that the size of the bonus received is the biggest plus, but as a negative, we see that these offers are rare and have more restrictions.

Here are some of the biggest perks and flaws of 400% bonuses.

Pros:

Perfect for trying out a casino

Low minimum deposit requirements

Simple bonus concept

Maximises the value of your deposit

Cons:

Maximum amounts are usually small

Terms can be more difficult

Big bonus percentages are very rare

Comparison With Other Deposit Bonuses

Deposit bonuses come in all shapes and sizes. It is true that the bigger the bonus percentage is, the rarer they are on the market. Getting a 400% match bonus is not easy, but if you go lower, you will get plenty more options.

Check out some of our other deposit bonus pages and see what offers are available for each.

100% Deposit Bonus

A 100% deposit bonus is the most common and straightforward offer at online casinos. It doubles your deposit amount, providing a balanced boost to your bankroll. This type of bonus is ideal for players who prefer a direct and simple approach with friendly terms.

You can discover the best deals on our 100% deposit bonuses page.


200% Deposit Bonus

Moving up the scale, a 200% deposit bonus triples your deposit, offering a more significant boost. While the terms might be slightly heavier, these offers usually have reasonable conditions with some added punch. At the moment, these are generally the biggest bonuses you can get that are always available.

You can explore the casinos with 200% deposit bonuses to find a bonus that matches your preferences.


300% Deposit Bonus

A 300% deposit bonus quadruples your deposit amount, providing you with a huge uplift to start with. The casinos offer these generous bonuses mainly for newcomers, and you want to keep an eye out for conversion caps that may limit your winnings. We are now entering the uncommon offer range. While 200% bonuses are always available, 300% bonuses are not. These show up every now and then, but you have to keep an eye out for them.

Our experts have listed the top 300% deposit bonuses to help you. Check out the reviews and details of their terms before choosing your bonus.


500% Deposit Bonus

At the high end of the scale, a 500% bonus offers a massive increase, multiplying your deposit by six. If you think 400% bonuses are rare, these are even harder to find. They may provide the biggest match percentages seen in the UK, but it has been a while since we've seen a single one.

Check out the 500% deposit bonuses page to find deals of this calibre. Remember to evaluate the terms and conditions before your decision.

FAQ

A 400% deposit bonus is a promotional casino gift that gives you bonus money in relation to your deposit. You get 400% of your deposit in bonus money to a specified limit.

For example, if you deposit £10, you will get an additional £40 as bonus money.

You can get a 400% welcome bonus by first finding a casino that has such a deal, then signing up and making a deposit to your casino account.

You can find casinos with 400% welcome bonuses here on Bojoko, as we have listed and reviewed them for easy picking.

There are currently no casinos that offer 400% casino bonuses, but we recommend BetVictor as the next best thing.

Bonuses as big as these are rare, and we are here to help you find them.

A 400% deposit bonus is better than a 100% bonus in that you get more bonus money with the same deposit. However, the bonus terms are what matter most, and they will determine which bonus is truly better.

Ville Saari

Article by:

Ville Saari

Ville is an iGaming industry veteran who has written thousands of gambling-related reviews and articles since 2009. He is an IT engineer with a passion for game and strategy optimisation and for teaching the world to play better.
Elmo Kukkonen

Edited By:

Elmo Kukkonen

Elmo began his career in the gambling industry in 2019. Over the years, he has gained extensive knowledge of casinos, offering a unique insider perspective. With his passion for information and writing, he provides accurate and honest reviews to help players make informed decisions and confidently navigate the world of online casinos.
Milla Gustafsson

Edited By:

Milla Gustafsson

After working with casino content for a good few years, Milla now puts her heart into writing detailed articles that speak from player to player. She will investigate the smallest details and provide honest reviews.