Ad Disclosure

300% Deposit bonus UK

By Lauri Hannelin. Updated:

The first thing that typically comes to mind when you think of casino bonuses is a deposit bonus. These offers are the bedrock of casino promotions, and nowadays they come in all shapes and sizes. 

With so many casinos offering deposit bonuses, it can be difficult to choose the right one for you. Increased competition among casinos has resulted in better bonuses than ever before; however, each one comes with its own set of conditions and requirements. 

This is where the experts at Bojoko come in. We help you choose the best-suited casino bonus for you. Give your gaming experience a big boost right off the bat.

300% deposit match bonuses are not the most common ones you can find at online casinos. Given that these promotions will triple the amount of your initial deposit in bonus funds, this is understandable. Compared to casinos that only offer regular deposit match bonuses, those that offer you a 300% deposit bonus give you a noticeable advantage. You can browse all of these casinos conveniently from the list below.

  1. 300%/£60 + 20 bonus spins
    1st deposit bonus
    Bingostars casino review »
    1st deposit bonus 300%/£60 + 20 bonus spins
    Bonus code -
    Minimum deposit for bonus £10
    1st deposit max bonus £ 60
    Launch date 11/2022
    Like the name implies, Bingostars is a bingo site with casino elements, or a casino site with bingo elements. It's hard to say as both of these are well done and could be the le... Bingostars casino review »
    Play here » New players only, 18+. Minimum deposit: £10. Wagering requirement: 40x. Maximum withdrawal: £250. The bonus will expire in 30 days. Bonus spins will expire in 48 hours. Game weightings apply for wagering. Full and Bonus terms apply.
  2. Up to 300%/£50 + Up to 100 bonus spins
    1st deposit bonus
    Dr Slot casino review »
    1st deposit bonus Up to 300%/£50 + Up to 100 bonus spins
    Bonus code -
    Minimum deposit for bonus £10
    1st deposit max bonus £ 50
    Launch date 01/2018
    Dr Slot is on a voyage against the same old casino experience. All games are created in-house and even the casino platform is build by them meaning the site is unique! On fir... Dr Slot casino review »
    Play here » 18+. New Players only. Up To 20 (20p) Free Spins (FS) awarded at registration. Up to 100 FS after first deposit awarded in sets over 10 days. FS locked to Full Metal Jackpot. 7 day expiry. Wins paid as bonus credit. £50 max withdrawal from bonuses without a deposit across all Intouch Games Accounts; mFortune, Mr Spin, Dr Slot, PocketWin, Casino2020, Cashmo, Bonus Boss, Jammy Monkey. Up to £1,000 Welcome Bonus available via 5 deposit boosts. Min Deposit £10. 40x wagering requirement on bonuses and FS wins. 30 days expiry from registration followed by 30 days expiry after each deposit. Withdrawal of deposit excludes player. Full terms and Bonus terms apply.

300 deposit bonus uk

Best UK sites with 300% welcome bonus

A 300% bonus gives you a significant amount of extra funds to play with. You can try out several games and perhaps even discover new favourites for the future when you have a sizable balance to begin with.  

As you might expect, such high-percentage bonuses are not available on a regular basis, with most casinos opting for smaller bonuses. Below you'll find some of the best UK sites with a 300% welcome bonus.


Bingostars Casino provides a generous 300% bonus

Bingostars is a multifaceted online casino with a ton of entertainment for all kinds of players, not just bingo players. Naturally, the site offers a great bingo experience in a social setting that welcomes both beginners and experienced players.

Given the high calibre of their table and slot games, they might as well be called casinostars. The game selection consists of releases from some of the biggest names in the industry, such as NetEnt, Microgaming, and Play'n Go. Furthermore, Bingostars has a mobile version that is highly responsive and a layout that makes playing effortless regardless of which device you prefer.

Bingostars has a tempting 300% welcome bonus, which can be activated for as low as £10.

The welcome offer comes with a fairly standard set of terms and conditions, however, it's wise to have a look at the full details from our Bingostars casino review.

Play on Bingostars Casino »

Dr slot

DrSlot has a 300 deposit bonus

Dr Slot is a truly innovative online casino. They provide a completely unique experience in comparison to other casinos, with all of their games and even the casino platform created in-house. If you're looking for a different kind of casino with a one-of-a-kind game variety, Dr Slot is the place to be.

The casino features only slots, with the exception of a single roulette table. They are all developed by the operator of the site, In Touch Games Ltd., right here in the UK.  As a result, you will not find any familiar games here. Playing at Dr Slot is a completely fresh experience.

The platform is clearly streamlined for mobile gaming, you can play on Dr Slot straight from your browser, or via their mobile app. The overall experience is seamless no matter which device you play with.

You get to start with a huge welcome offer:

In addition to the 300% bonus, there are four more deposit offers available. The package is a generous one, and you can find everything about it from our Dr Slot Casino review.

Play on Dr Slot Casino »


Bonnie Bingo has a 300% deposit bonus for new players

Bonnie Bingo is an online casino that is all about the perfect user experience. Operating on the award-winning Dragonfish platform, navigation and gameplay are as smooth as they could be. 

Despite having bingo in its name, 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 Quickspin, NetEnt, Yggdrasil, and iSoftBet, just to name a few.

To complement the overall user experience, Bonnie Bingo offers excellent support through all three channels; chat, email, and phone. 

Start off at Bonnie Bingo with a solid first deposit offer:

To claim the offer, use the promo code: WELCOME50 when you make your first deposit. You can read further details about the site from our Bonnie Bingo Casino review.

Play on Bonnie Bingo Casino »

What is a 300% casino bonus

The majority of casinos reward their players in some way. This could be cashback, deposit offers, or free spins, for example. All of these offers have one thing in common: they give the player some extra money to play with. Furthermore, the best casino bonus UK punters can get come with reasonable terms that favour the player.

A deposit match bonus is an offer in which the amount you deposit is matched with bonus funds. The percentage of the bonus essentially tells you how much is being matched, so with a 300% bonus on the line, your deposited amount would be matched by 300% in bonus funds.

A 300% casino bonus up to £60, for example, would be claimed in full with a £20 deposit, because 300% of £20 equals £60.

By depositing £20, you can receive an additional £60 in bonus funds.

Since a higher bonus percentage is more costly for the casino than a lower one, these offers typically have lower caps. Additionally, the wagering requirements differ between each offer, and they are typically a little higher for 300% bonuses. Before utilising the offer, it's wise to familiarise yourself with the casino's terms and conditions.

Deposit bonuses become more rare as the bonus percentage increases. As a result, you don't come across a casino with 300% bonus very often.

Pros and cons of 300% welcome bonus

300% welcome bonuses have their own positives and negatives, but it's safe to say that the positives outweight the negatives. Most importantly, having an extra 300% to play with is huge and gives you room to explore everything the casino has to offer. Whether you want to try some new slots or have a go at some highly volatile slots that require a large balance, it's your time to shine.

The main drawbacks of a 300% deposit bonus come from its terms and conditions. Many casinos set a low maximum cap for a bonus with such a high percentage, so you might not be able to receive as much as you can with some more traditional 100% bonuses. Additionally, these offers might come with some heavy wagering requirements.

✅ You can triple your funds to start with
✅ Most 300% welcome bonuses include bonus spins
✅ Low minimum requirements
✅ You get more bang for your buck

❌ May have higher than standard wagering requirements
❌ Maximum amount is usually capped lower than with usual deposit offers
❌ A rare offer type, limited availability

How to claim an online casino 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.

Find a casino with a 300% bonus from our list

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.

Read Bojoko's expert reviews

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.

Head to the casino

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.

Claim your 300 welcome bonus

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.


Find 300% casino bonuses

New UK casinos with 300% casino welcome bonus

300% deposit bonus is a great boost to start with

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 solid welcome offer can give you a lot of extra money to play with, increasing your chances of winning. 

Given this, it is not surprising that new casinos are developing increasingly appealing welcome bonuses. After all, the competition between casinos is fierce. Casinos offering 300% deposit bonuses are becoming more common, and we expect to see many more in the future.

Browsing through the numerous welcome packages and comparing them manually is an impossible task. That's why Bojoko allows you to compare all of the newest casinos and their welcome bonuses conveniently from our dedicated new casinos page. You can further narrow the results by using our comparison tool, which allows you to filter the newest casinos based on your preferences. You can choose whatever criteria you wish, for example, the newest casinos with 300% bonuses. 

Newest 300% casino bonus today

We keep an eye out for these sites and review them for you. Bingostars is the newest addition to our list of casinos offering a 300% welcome bonus. With an additional 20 bonus spins as the icing on the cake, the casino offers a generous 300% deposit bonus up to £60. Read our Bingostars casino review to learn more about it. 

Terms and conditions of 300% deposit bonus

All bonuses come with terms and conditions that 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:

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.

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% 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. 

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 in general are really appealing. 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.


A 300% deposit bonus is an offer in which you receive triple the amount you deposited in bonus funds. These offers are usually available as welcome offers for new players.


You can get a 300% welcome bonus by finding a casino with this type of offer. We've made it simple; simply browse the available casinos from our list of 300% bonus casinos. Once you make your pick, simply click on the green "Play here" button, and signup.

Sites that offer 300% casino bonuses are usually modern casinos, whereas old-school casinos tend to offer lower deposit bonus percentages. We have listed the sites that offer 300% casino bonuses so you can simply compare them.


Find 300% casino bonuses



Lauri Hannelin

Article by:

Lauri Hannelin

Lauri is a casino enthusiast who has been in the gambling industry since 2019. During his career in iGaming, he has worked in many fields becoming an all-around expert when it comes to online casinos.

Say "OK" to the cookies. Learn more in our privacy policy.