A 400% casino bonus is a rare sight, but some online casinos offer it to their existing players or new joiners. On this page, you can find all 400% casino bonuses that are currently active in our deposit bonus database.
A 400% casino bonus is a rare sight, but some online casinos offer it to their existing players or new joiners. On this page, you can find all 400% casino bonuses that are currently active in our deposit bonus database.
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A 400% casino bonus is a type of bonus offered in some online casinos that rewards players with 400% of their deposit. For example, if you deposit €100, the casino will send €400 your way in bonus funds, allowing you to spin your favourite slots or play other casino games.
Since the majority of 400% casino bonuses are welcome deals, it means that they’re reserved for new casino members only. So, to claim a bonus, you have to register at the casino and make your first deposit.
The casino will send the bonus funds your way, but before you can withdraw any winnings you must play at the casino. Each 400 percent bonus comes with wagering requirements which you must meet. Only after you’ve met them can you request a withdrawal.
It’s essential to see all the bonus details and read Terms and Conditions before you proceed because there could be some other restrictions that you must know about.
To claim a 400% bonus at an online casino, you can follow the instructions below:
On AskGamblers, you can find bonus details for each 400% bonus that we list, so you can also take that extra step and learn about the bonus before you proceed any further.

400% casino bonuses aren’t common, but when a casino decides to offer them, it’s usually in the form of either a welcome bonus or a high roller bonus. You can read more about them below.
Welcome bonuses are great for players who register at the casino for the first time. Almost every casino offers a welcome bonus, but it’s up to the player to either select it or proceed without claiming it.
With a 400% welcome deal, you get a great chance to explore the casino and play your favourite games. Keep in mind that this is usually a package deal, which means that you’ll have to make more than one deposit to make the most of it.
High roller bonuses are created with players who like to make bigger risks and chase bigger rewards. The minimum deposit to claim a high roller bonus is usually over €100, but it can even reach €1,000 (it fully depends on the casino and its playerbase).
Before you activate your bonus and start playing, pay attention to the following:
You won’t find an ideal bonus, but 400% bonus offers can be quite attractive.