Available in the United Kingdom

400% Match Casino Bonuses

Although rare, there are online casinos that give new customers massive bonuses where they quadruple your first deposit. We have searched to find the best casinos that offer you a 400% match bonus. Compare from our list of licensed casinos that have this offer below, make your pick and start benefiting today.

What is a 400% casino bonus?

Some online casinos offer a deposit bonus where they will match your deposit by 400%, effectively giving you 4x the money you transferred. The offer is commonly available to new customers who make their first deposit but can also come as part of a welcome page where you get a reward for your 1st, 2nd, 3rd and even the 4th deposit.

On top of the casino match bonus of 400%, you can receive additional perks like free spins for slots and other game credits.

There are very few casinos that offer this bonus because it is a costly campaign, which is why it’s so popular.

How to unlock the offer

First, you should find comparison sites like ours where you can compare safe casinos that offer 400% match bonuses. Once you find a casino and want to unlock the bonus, you will have to follow a few steps.

  1. Visit the online casino and register your account using genuine details;
  2. Verify your identity by sending the operate your documents;
  3. Go on the promotion page to claim your bonus and make your deposit;
  4. You will now receive the 400% match bonus and your own money.

You will have to verify your account before being able to play casino games for real money in the United Kingdom. The verification process usually won’t take longer than 10 minutes. You will have to send them a photocopy of your ID or passport, proof of residence and sometimes a copy of your payment details.

You must be using your correct personal details as you otherwise might get your withdrawals rejected.

Bonus conditions and limitations

While this bonus offers excellent value, the downside is that you will have to stake a lot before being eligible to withdraw your winnings, thanks to wagering requirements. The other drawback is the sheer rarity of casinos that offer 400% match bonuses, and you will most commonly only be able to use the bonus funds on bingo rooms but not casino games.

Wagering requirements

Wagering requirements are put in place by casinos to ensure the player will not just immediately withdraw his bonus and winnings. You will have to wager your bonus and winnings multiple times before being eligible to make a withdrawal.

If you are from the United Kingdom, you will never have to wager your deposit as it’s always available for withdrawal, thanks to regulations enforced by the United Kingdom Gambling Commission.


Let’s assume you claim a bonus of 400% up to £100 with 40x wagering requirements and deposit the maximum amount to claim it in full.

You will receive £400 in bonus money, which sounds fantastic, but to withdraw any of it, you will have to stake 40x your bonus which amounts to £16,000 (40x £400).

Assuming you play a slot game with a 97% RTP, you will lose 3% on average for each bet you place.

3% of £16,000 is £480, which means you will lose more than your bonus funds are worth unless you are lucky. 

This calculation clearly shows why online casinos can offer massive match bonuses, and it’s also why there are conditions like wagering contributions. 

Your match bonus can have different wagering requirements than the bonus spins.

Wagering contributions

Casino games have different RTPs, which is the mechanic that dictates how much of a bet returns to the player. And that is also why your bets don’t equally contribute to the wagering requirements. 

Bets on slots and other virtual games usually contribute 100% towards the wagering requirement, while table games only contribute 10%. That is because the RTP of table games like roulette and blackjack is higher than the RTP of video slots and virtual games.

That means that online casinos are basically trying to make your bonus unprofitable for you with the help of wagering requirements.

Withdrawal limitations and bet limits

While playing through the wagering requirement, you can’t exceed the bet limit the operator has specified. If you breach this rule, you are likely to use your bonus funds and potentially even lose your account. 

Aside from that, the operator might limit how much of the winnings you got from playing with the bonus you can withdraw.

Similar offers

We have over 200 online casinos listed on Gamblee, which is quite a bit. But we regardless only managed to find a hand full of casinos that offer new customers a 400% match bonus. These offers are sporadically available, so we recommend that you consider our page listing casinos that provide a 300% match bonus for new players, which is more widely available. If you want to get a general overview and see what is available, you can visit our page where we list all types of casino offers.

The online casino market is very competitive so brands are crafting promotions that stand out to gain the attention of new customers. 

There are casinos that offer you a spin on the Mega Reel which contains prizes including 500 free spins and 100% match bonuses. But, given that the reel has several fields with each containing different prizes, you are more likely to get a small bonus.

While you might think that casinos that offer 400% deposit bonuses are desperate for new customers, we can assure you that every brand listed on this page is licensed and has provably fair games.