Available in the United Kingdom

300% Match Casino Bonuses

If you are looking for deals with the highest value, the 300% match bonus that online casinos offer is the right choice. Using this bonus, you will have your first deposit quadrupled and sometimes get free spins on top of that. We have hunted for the best online casinos that offer new depositors a 300% match bonus. Take a look at our recommended offers below, compare and make a pick to benefit today.

300% Match Casino Bonus Offers

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bonus amount
Welcome bonus

Bet £10, Get £30

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100 Extra Spins


100 Extra Spins

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Bonus info

  • 10
  • x40
  • 03/02/2023

Bonus info

  • 10
  • x40
  • 03/02/2023

18+ Opt in. Wager £10 on selected games within 7 days of registering. Get 3x £10 bonuses, selected games, up to 40x wagering to withdraw max £750. 100 free spins on selected games, no wagering. Bonuses expire in 7 days. Card payments only. | T&C | www.begambleaware.org

What is a 300% casino bonus?

It’s an offer where the casino matches your deposit by 300%, effectively tripling your payment.

Sometimes, the 300% match bonus can come as 2nd or 3rd deposit bonus as part of a welcome package where you can receive additional perks, including free spins for slots and other game credits. 

The casino will set a minimum deposit requirement and a maximum amount you can claim, so you can choose any amount in between to unlock the bonus.

However, online casinos rarely offer 300% match bonuses as it’s a costly campaign, but some are willing to do it to attract new players.

You will be glad that all of the online casinos on this page are licensed, have provably fair games, and offer you to triple your first deposit through one of the best deposit bonuses out there. 

How to unlock the offer

First, you will have to find licensed online casinos that offer you a 300% match bonus.

The easiest way to find such offers is to look for comparison sites like ours. We test and review each casino for safety and categorize their bonus offers to present you with an accurate list of their deals. If you find a casino bonus you like, you will have to follow these simple steps.

  • Visit the casino and create your account using your personal details;
  • Verify your identity at the casino by sending in your documents;
  • Copy and use the bonus code in case that is required;
  • Visit the cashier, choose your bonus and make a qualifying deposit;
  • Once your transfer is through, you will receive the match bonus.

Once you have followed these steps, you will receive your bonus and deposit into your account. If you have received free spins as part of a package, see which slot games the credits are valid for and select it in the lobby to start playing it for free.

Bonus conditions and pitfalls

The biggest downside of using casino bonuses with massive multipliers is that you will have to wager your money before being eligible to withdraw them. The casinos impose a condition called wagering requirements on all their offers.

Wagering requirements

The online casino will specify how often you will have to stake your bonus before being eligible to withdraw money. The more bonus money you receive, the more you’ll have to stake before being eligible to withdraw your winnings. 

Your winnings can be subject to wagering requirements too, but your deposit is always withdrawable thanks to regulations enforced by the United Kingdom Gambling Commission.(1) 

Furthermore, your bets don’t contribute 100% towards the wagering requirements on all games. Generally, your bets on slots and virtual games contribute 100% towards the wagering requirements, while bets on table games often only contribute 10% or even less. 

The wagering requirements are often different for your cash bonus and free spins. 

Bet limits 

The online casino will almost always specify how high your bets can be while clearing your bonus of the wagering requirements. The limit will often be £5 or something around that number, and if you happen to bet more while playing with bonus money, your funds will likely be seized. 

Other terms

Not all offers are available in all countries, but you don’t need to worry about that as we only show you bonuses that are available in your region.

Aside from that, the online casino might limit how much of your winnings accrued from playing with bonus money you can withdraw. 

Want more?

We continuously add more brands to Gamblee to provide you with a list of the best online casino bonuses in the industry, giving you an overview of each casino and the option to share your experience. 

But we don’t just show you anything that’s out there and instead carefully review each offer to show you the fairest and biggest offers at the top of our listings. 

You can use our search function if you are trying to find anything specific, and you’ll likely find what you are looking for as we cover a wide range of anything related to online casinos.

To stand out and attract new players. The online casino industry is full of competing companies who try to get new customers by creating unique promotions.

Very few casinos offer to match your deposit by 400% or even 500%, but the maximum you can claim is often relatively low. Then, there are casinos that offer the Mega Reel bonus where the max win is a whopping 1000% match bonus or 500 free spins, but you’ll need to be lucky to hit that as you are more likely to spin a lower bonus.

No, they are as reliable and safe as all other operators. They just want to stand out to attract new customers from which they hope to generate revenue from, which is important for new brands, for example.

The most widely available casino bonus that’s similar to the ones listed on this page is a 200% match bonus.