300% Casino Bonus Sites | List of Casinos With 300% Deposit Bonuses

A 300% deposit bonus means your deposit is quadrupled, giving you four times the funds to play with. While rare, we've found plenty of offers with as high or higher bonus percentage for you.

Below, you can browse our list of casinos with a 300% deposit bonus available. If there are currently no deals reaching this percentage, we show you the closest ones from UK licensed sites.

Table of Contents

Best 300% Welcome Bonuses: Our Recommendations

The best 300% welcome bonuses give the most bonus money, have additional free spins and have the most favourable terms and conditions for the player. We handpicked the very top 300% offers for you.

1. BetVictor

Though not exactly 300%, BetVictor is offering an amazing 200% welcome bonus to kickstart your casino journey. This means that when you make your first deposit, you'll get a lot more money to play with, allowing you to enjoy your time on the site even longer. Plus, you’ll also receive some wager-free bonus spins, making the offer even more exciting.

BetVictor needs little introduction among the British public. It is one of the most popular gambling brands in the UK, and for good reason. You can read our detailed review of BetVictor casino for more information. 

No matter what type of gambling experience you’re looking for, BetVictor has something for everyone. In addition to sports betting, their casino offers a wide range of options, including slot machines, live dealer games, and bingo.

2. Mecca Games

Our honorary mention goes to Mecca Games. Their bonus is not 300%, but it's close at 200%. We picked it here thanks to its easy bonus terms.

Mecca Games is a well-known online casino that is all about the perfect user experience. Mecca Games is one of the Rank Interactive casinos, which is one of the most popular platforms in the UK. It offers quality, and good features are guaranteed when playing at this casino. 

Despite having a name that is more associated with bingo, the site offers an impressive selection of slots from some of the top developers in the industry. You'll find games from the likes of Play'n GO, NetEnt, Pragmatic Play, and BluePrint, just to name a few. Check out more information in our detailed Mecca Games casino review. 

To complement the overall user experience, Mecca Games offers excellent support through all three channels: chat, email, and phone.

What Is a 300% Casino Bonus

A 300% casino bonus is a promotion by an online casino that matches your deposit amount by 300%. This will give you extra money to play with, often tied to certain terms and conditions, though.

A typical 300% bonus offer gives you three times your deposit in bonus funds. For example, deposit £20 and get £60 in bonus money, for a total of £80 to play with.

These high-percentage bonuses are rare on our casino bonus UK listing, as most casinos prefer not to offer promotions that multiply deposits so significantly. While a 300% match sounds generous, the total bonus amount is often capped low, making it less appealing in practice.

You would also have to judge all the terms and conditions to make the final judgment on whether the offer is actually good or not. Usually, as the percentage is so high, the maximum amount will be lower. This is why many of these offers haven't probably made it to the list of the very best offers.

Deposit Bonus Calculator

Use our 300% deposit bonus calculator and see how wagering requirements and other features may affect your bonus.

300% Deposit bonus calculator

300% Match bonus Your deposit will be matched 300% up to the maximum bonus amount

Your deposit

£ 500

Maximum bonus

£ 0

Wagering multiplier

0 x

Game contribution

100 %

Time limit

7  days

Your deposit:

£ 0

Bonus amount:

£ 0

Total player balance:

£ 0

Wagering requirement:

£ 0

Effective wagering:

£ 0

Time limit:

0  days

Pros and Cons of 300% Welcome Bonus

How to Claim a 300% Deposit Bonus

Claiming your 300% deposit bonus is straightforward. Have a look at our guide below to find out how to activate your casino bonuses and benefit from the bonus funds that come with them.

1. Find a 300% casino bonus from our list

Bojoko provides first-rate UK casinos with a 300% deposit bonus offer available. You can compare and find your preferred casino using the filters our team has chosen or by selecting your own.

2. Read Bojoko's expert reviews

Bojoko's team of experts has reviewed several 300% deposit bonus casinos. Before choosing a casino, make sure to read the details provided in these reviews to get a complete picture of the site.

3. Head to the casino

On every review page, 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.

4. Claim your 300% casino bonus

The casino requires you to fill out the necessary information and possibly confirm your email address before you can create an account. You will benefit from your 300% match bonus after making your initial deposit.

New UK Casinos With 300% Casino Welcome Bonus

When you look for a new casino to play at, you need to look at certain things before making your decision. Comparing the differences in welcome offers is often the deciding factor, and for good reason. A competitive welcome offer can extend your playtime. 

The welcome offers are often one factor that players look at when choosing where to play. That's why new casinos tend to offer some of the biggest bonuses, intending to attract users to join their site.

Browsing through the numerous welcome packages and comparing them manually is an impossible task. That's why Bojoko allows you to conveniently compare all of the newest casinos and their welcome bonuses.

Newest 300% Casino Bonus Today

We keep an eye out for these sites and review them for you. BetVictor is the newest addition to our list of casinos, offering a 200% welcome bonus.Along with 50bonus spins, the casino offers a 200% deposit bonus of up to £20.

Play here »

1st deposit bonus	200%/£20 + 50 bonus spins
Bonus code:	The bonus is now activated! Get it by signing up and depositing at least £10
Minimum deposit for bonus	£10

Extra 1st deposit bonus info
Wagering requirements (bonus money)	10x (B)
Wagering requirements (bonus spins)	0x
Maximum bet for wagering	No limit
Maximum cash out	£250

Basic information
Launch date	01/2000
Minimum deposit	£5
Platform	BV Gaming
Sports betting	Yes
Live casino	Yes
Bingo	Yes

Play here » 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.

Terms and Conditions of 300% Deposit Bonus

All bonuses come with terms and conditions you must understand before claiming them. Different operators have different conditions for their bonuses, and they may even have drastic differences within their own campaigns. 

There are some main things to keep an eye out for when you browse through the terms and conditions. These naturally vary depending on the type of offer. With deposit bonuses, you should always consider the following factors:

• Minimum deposit - A casino might have a 10£ minimum for deposits, but the bonus can still require a £25 deposit
• Wagering requirements - The most critical factor to consider. It tells you how much you need to turn over to convert your bonus into real funds. Make sure to check if the wagering applies only to the bonus amount or both the deposited amount and the bonus amount. You can find out more from our full wagering requirements guide.
• Maximum conversion - Some casinos restrict the amount that can be converted to withdrawable funds. For example, a 300% casino bonus might have a 10x winnings cap. Any amount that exceeds the cap is forfeited.
• Game weightings - There are always games that are prohibited when playing with bonus funds. Furthermore, some game types might only affect your wagering partly. These limitations can be found in the casino's bonus policy.

In addition to the most important factors listed above, you should also consider betting limits, times, and payment methods. Most offers have a maximum wager of £5 and a set time period after which the bonus expires. Certain payment methods are also barred from receiving bonuses.

Comparison With Other Deposit Bonuses

Deposit bonuses are available in a variety of amounts and percentages. These offers typically start at 25% and can go all the way up to 400% casino bonuses or even 500% bonuses, though both extremes are uncommon. A 300% match bonus is already at the top end of the deposit bonus scale when compared to the other options.

100% Deposit Bonus

The most common and well-known deposit bonus is a 100% deposit bonus. Most players are familiar with these offers, which can be found at numerous casinos. The offer is straightforward: you receive the same amount of bonus funds as you deposit. 100% deposit bonuses are often matched with 100 bonus spins and a £100 maximum reward. These bonuses are commonly referred to as "100/100/100" bonuses.

200% Deposit Bonus

200% bonus casinos are the next rung up the ladder. Instead of matching your deposit, you receive double the amount in bonus funds. These offers do not typically go as high as 100% deposit bonuses in terms of amount, but they can still be found on a large scale. 

400% Deposit Bonus

A 400% deposit bonus is a less common. Who wouldn't want to start with £50 when depositing just £10?

While you get a substantial increase to begin with, you might find conversion caps and tough wagering terms with these offers. Discover the 400% casino bonuses and find your match!

500% Deposit Bonus

At the top end of the deposit bonus scale, 500% bonuses are rare but offer the most substantial increase in funds. These bonuses multiply your initial deposit by six, giving you plenty to play with. Their downside is that the maximum amount is often limited, and the fact that you don't see them often.

You can browse our 500% bonuses page for an updated list of these deals.

Some casinos do tend to ramp up their bonuses. The first bonus is good, the second is better, and the third is even greater. These ever-increasing casino reload offers can often go up to 300%.

It's a good idea to compare bonuses from all angles in order to find the one that best suits your needs.

Casino Bonuses and Responsible Gambling

300% casino bonuses and deposit offers can look attractive. Casinos use bonuses to entice new players to visit their site and deposit using their welcome offers. Even when you receive bonuses, there is still a high risk of losing money. 

This is why it's important to keep in mind that casinos always win in the end and that you should always only play with money you are comfortable losing. Gambling should only be seen as a form of entertainment.

FAQ

Article by:

Lauri Hannelin

Lauri is a casino enthusiast who began his career in the gambling industry in 2019. His journey has spanned various facets of the iGaming world, from technical and commercial roles to innovative positions in online casino and sports betting companies. This diverse experience has not only deepened his understanding of the industry but also shaped him into an all-around expert in online casinos.

Read more »

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.

Read more »