What if your deposit grew fourfold at a casino that offers a 400% deposit bonus? A 400% bonus can turn a €100 deposit into €500, giving you unparalleled value for your money. Our Mr. Gamble experts have vetted and ranked the top casinos offering this incredible deal to ensure you find the most reliable and rewarding options.
400% Deposit Bonus Casinos Listed – Updated December 2024
Explore our list of casinos offering 400% deposit bonuses. Use our filters to find a deal tailored to your gaming preferences and start playing with confidence.
Here are the best bonuses that match what you’re looking for.
We are always on the lookout for the best deals for you. We do not list subpar or unlicensed casinos, or aggressive bonuses at Mr. Gamble. We believe the offers below are the best you can claim today.
For the safety of players and to keep operators accountable, the team at Mr. Gamble implements a world-class evaluation process for all online casinos. The team incorporates a strict due diligence process for listing casinos on Mr. Gamble by verifying the operating regions of casinos and the validity of local licenses, among other aspects such as customer service, game selection, banking methods, and bonuses.
Our editorial policy includes fact-checking all casino information while including real-world data to provide the most relevant and helpful guide for readers around the world. At Mr. Gamble, the players' safety and satisfaction are our top priority — you can rely on us to get the best possible offers from licensed online casinos.
🤔 What Is a 400% Deposit Bonus?
A 400 deposit bonus is an incentive or reward that is typically offered to new players making their first deposit at an online casino. It’s basically a fixed percentage of the deposit, up to a certain amount.
For example: you may see a 400% casino bonus up to €250. In this case, you can deposit up to €250 and still qualify for the 400% deposit bonus. The casino would match your €250 by 400%, awarding you €1,000 on top of your deposit, thus giving you a starting bankroll of €1,250.
Why Use a 400% Casino Bonus?
The 400% casino bonus is one of the biggest and best bonuses you can find at today's online casinos. But why else would you want to use a 400% casino bonus? Look, you’re going to have to deposit funds either way. So why not do so with a bonus that’s going to 5x your money. With a significantly increased bankroll, you've a great opportunity to try out a new casino, play new games, and give yourself more chances to win. With so many more bets available to you, your odds of winning are much improved.
How to Claim a 400% Deposit Bonus
The steps needed to claim a 400 deposit bonus are similar, no matter what the casino. Here’s how to claim that elusive bonus in just five short steps.
Choose a casino to play at. View our recommended list of 400 deposit casinos, and pick one to get started at.
Read the T&Cs. Look at the T&Cs for the specific bonus you're claiming, making sure you're happy with the requirements.
Create your account. Click the sign up button, enter a few personal details, and you're golden.
Make your first deposit. Visit the Cashier and choose your preferred payment method before entering the amount you wish to deposit.
Claim your bonus, and enjoy. You'll find your bankroll displays an amount 5x your deposit, so go and enjoy yourself playing whatever games float your boat.
Pros and Cons of 400% Deposit Bonus
A 400 deposit bonus might make you feel like the gaming gods are shining on you. However, the reality is that every bonus has its pros and cons. Here are some to take into account when it comes to claiming an online casino 400 bonus.
✔️Pros
❌ Cons
Quadruples your bankroll. Having 5x the amount you invested is a great return, and the perfect way to start life at a new casino.
Wagering requirements. Some 400 deposit bonuses can come with very high wagering requirements, so make sure you’re okay with these before accepting the bonus.
Low minimum deposit. Many online casinos still allow you to get started with as little as €10, so you can benefit from the bonus while still playing on a budget.
A very elusive offer. A bonus this tasty is understandably hard to find. Don't worry, we’ve taken care of this for you.
Can be claimed with other bonuses. Some welcome packages include this as just one of the bonuses, which means you may get free spins and other offers on top.
How to Choose a 400 Bonus Casino
As mentioned, the first step in claiming your online casino 400 bonus is choosing which casino to play at. So how do you do that exactly? Here's a simple 5-step process in choosing a 400 bonus online casino to get started with.
1
Select a casino
Browse through our list of recommended 400 deposit casinos.
2
Read casino reviews
Every casino listed on Mr. Gamble has been reviewed by our internal team of casino experts.
3
Read the bonus T&Cs
Read over the T&Cs of the bonus, so you know what’s expected of you.
4
Check the wagering requirements
Make sure you’re aware of what you need to wager in order to withdraw your bonus winnings.
5
Sign up and claim the bonus
Click the big sign up button, enter a few details, and make sure to claim the casino deposit bonus 400 offer when prompted.
Different Types of 400% Bonuses
There are various types of 400 deposit bonuses. Whether they’re offered to new players or existing ones, they're designed to encourage you to continue playing at the site. Here are the most common types of 400 percent bonuses you’ll see offered to you.
400% First Deposit Bonus
A 400 first deposit bonus casino offer is the most straightforward example of how a 400 deposit bonus works. All you need to do is make your first deposit, making sure that it’s the minimum amount, as specified under the bonus’ terms and conditions, and the casino will match your deposit by 400%.
400 Welcome Bonus Casino Deals
A 400 casino welcome bonus is one specifically designed with the new player in mind. You’ll need to create an account and make a deposit in order to claim the bonus, but that’s it. A casino welcome bonus 400 offer even be a part of a welcome package, which means there’d be other bonuses included, such as free spins, for example.
400 Match Bonus Casino Offers
This is similar to a first deposit bonus, but it isn’t necessarily restricted to new players. While a 400 deposit bonus most commonly a welcome offer, you might also find it promoted to existing players in the form of a reload bonus.
400 Bonus Codes
A 400 bonus code is an extra step you’ll sometimes be required to take when claiming your bonus. It’s basically a string of alphanumeric characters that you’ll need to enter on the site. Bonus codes are often required for no deposit bonuses. You’ll usually find 400 no deposit bonus codes on the casino’s homepage or Promotions page. Just make sure to enter the code exactly if you need to perform this additional step.
400 No Deposit Bonus
A 400 no deposit bonus is one in which you can claim simply by creating an account with the casino. However, while you’ll see 400 free spins no deposit offers online, promotions that include a 400 match bonus are incredibly rare.
Other Popular Deposit Bonuses
If, for any reason, you decide not to claim one of the 400 deposit bonuses we’ve highlighted here, there are a few alternative bonuses you might like to consider.
🔣 Deposit Bonus Percentage
✍️ Description
🎁 Example
100% deposit bonus
100% deposit bonus is the standard match bonus offer you’ll see at many online casinos. Once you create your account and make your first deposit, the casino will double it.
Make a deposit of €100 and get €100 in bonus money, (€200 in total).
200% deposit bonus
The 200 bonus triples your first deposit. Experience the fun of spinning the reels that much longer.
Make a deposit €00 and get €200 in bonus money, (€300 in total).
You can get this all on its own as an online casino 300 welcome bonus, quadrupling your bankroll. Or you may be lucky enough to claim other bonuses right alongside it, all in one very generous welcome package.
Make a deposit of €100 and get €300 in bonus money (€400 in total).
This is an incredible offer, especially for new players. It’s also possibly the rarest casino bonus available.
Make a deposit of €100 and get €500 in bonus money, (€600 in total).
Explore the 400% Deposit Bonus Slots & Other Games
You’ll have various gaming options on which to spend your casino bonus 400 percent offer. While this depends on the terms and conditions of the specific bonus you claim, it could include slots, table games, and other fun games, such as video poker, bingo, and scratch cards.
Online slots make up the bulk of a casino’s games library. After all, there are literally thousands of them out there. You can find thousands at individual casinos, in fact, covering various themes and styles. Some casinos allow you to try them out in demo mode first, so you can even take them for a test run before making your first deposit.
Table games are also popular among online gamblers, due to them often having minimal house edges built into the gameplay. Most leading casinos offer a strong range of roulette, blackjack, and poker options. You’ll also commonly find the likes of baccarat and sic bo among the table games offered.
There’s typically a decent variety of other casino games available too. Video poker, for example, is a popular game that comes in multiple variants. Then there are scratch cards, which offer you access to simple and fun gameplay. But again, you’ll need to check the terms and conditions as to whether or not you can use your bonus funds on these games.
New Online Casino Bonus 400 Sites
We know that new casinos are frequently appearing online, and we're constantly on the lookout for those with 400 deposit bonuses. While we've listed the best new casinos with the bonus right here on this page, you can also expect us to add to the list as new casinos pop up. So make sure to check back here soon for new online casino 400 deposit bonus offers.
Key Terms and Conditions of a 400 Deposit Bonus
A 400 casino bonus is undoubtedly a very attractive offer. However, there are some factors you should take into account before you part with your first deposit, no matter how tempted you are. Here are the key factors to consider.
Factor
Description
🤑 Minimum deposit
This is the minimum amount you’ll need to deposit in order to qualify for the 400 deposit bonus.
💳 Payment methods
Some casinos restrict specific payment methods from welcome offers, which may include 400% deposit bonuses.
💸 Withdraw limits
Gambling sites may also place a limit on the amount you can win with the bonus.
📅 Time restrictions
Almost all gambling offers have a limited timeframe, i.e., 7-14 days, or sometimes even 30.
🎲 Game and stake restrictions
There’s a limit to the amount you can bet on with this bonus, and you may be restricted as to which games you can use It on too.
Wagering Requirements for 400% Bonuses
Wagering requirements refer to the number of times you’re required to wager your bonus money before you can convert it to actual cash. When you claim your casino bonus 400 offer, the terms and conditions will include this number.
Let’s use 50x wagering requirements as an example. If you deposit €10 when claiming your 400 deposit bonus, your wagering requirements would be 50x your deposit, which means you’d have to wager €500 before you could withdraw any winnings earned from your bonus.
This is why it’s important to know the wagering requirements before you claim your bonus, so you know what you need to do in order to withdraw your cash. In some cases, the wagering requirements are the bonus funds, as opposed to the deposit. Or they could even be both. While not exclusively, wagering requirements for a 400 deposit bonus casino offer are typically from 30x-60x.
Payment Methods Available at 400 Deposit Bonus Casino Sites
When it comes to making your first deposit and claiming your casino 400 deposit bonus, you’ll need to decide on a payment method. Debit cards remain one of the most popular methods of payment, due to their familiarity and high-end bank security. In recent years, however, we’ve seen popular alternatives crop up and establish themselves in the online gambling community, such as e-wallets and cryptocurrencies.
E-wallets like Skrill and Neteller offer peace of mind, as they encrypt any data entered during transactions, meaning your financial details aren’t passed on to the casino. Cryptocurrencies such as bitcoin offer their own advantages, including the fact that they’re decentralised, and, therefore, require no intervention from financial or governmental institutions.
Frequently Asked Questions
Do all casinos offer 400 deposit bonuses?
No, not all casinos offer 400 deposit bonuses. However, we've scoured the web and have found the best ones that do, which we recommend above.
Why do online casinos give out 400 first deposit bonuses?
Online casinos give out 400 first deposit bonuses in order to encourage casino players to try out their platforms and consider playing there in the longer term.
Are the biggest casino bonuses always the best?
No, the biggest casino bonuses aren't always the best. You have to factor in terms and conditions like wagering requirements, and which games are eligible to be played with the bonus.
Where can I find casino sites that offer a 400% deposit bonus?
You can find casino sites that offer a 400% deposit bonus by scrolling up, as we've recommended the best 400 deposit casinos for you to choose from.
Are 400% deposit bonus casino sites safe?
Yes, 400 deposit bonus casino sites are safe, as long as they're licensed and regulated by a reputable body. As well as having passed our test for safety and security, each of the 400 deposit bonus casinos we've recommended here are licensed and regulated by the Malta Gaming Authority (MGA) and/or another reputable gaming authority.
How to claim a 400% casino bonus?
To claim a 400% casino bonus, scroll up to see our quick 5-step guide. In short, you need to open an account with a 400 deposit casino, make a deposit, and claim the bonus. Yep...it's that easy!
Are casino 400% bonus offers a scam?
No, casino 400% bonus offers aren't a scam, as long as you're playing at a legit casino, such as those we've recommended above.
Can I keep winnings from a 400 casino deposit bonus?
Yes, you can keep your winnings from a 400 casino deposit bonus, as long as you've fulfilled the terms and conditions of the promotion.
Can I get free spins as part of the 400 casino bonus?
Yes, you can get free spins as a part of a 400 casino bonus, if you claim the right welcome package - some welcome offers include several bonuses.
Can I win real money with a casino 400 bonus?
Yes, you can win real money with a casino 400 bonus, just as you can with any other bonus offer.
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