100% Deposit Bonus Casinos

Compare online casino sites that offer 100% deposit bonuses

Want to play at online casinos that match your first deposit up to 100%? Of course you do. Comparasino lists all 100% deposit bonus casinos available to UK players and gives you the tools you need to filter and find brands based on your own preferences.


This makes them the best 100% bonus casinos for you.

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Online casinos welcome new players with a wide range of bonuses and one of the most common is the 100% deposit match. This means the casino will match the deposit you make up to 100%, giving you even more cash to play with.


Most 100% first deposit bonuses are matched to a certain value, and this usually ranges from £50 all the way up to £1,000. Regardless of the limit, 100% bonuses essentially allow you to double your bankroll.


Once the bonus cash is in your account, you can then use it to play any of the slots, table games, live dealer titles, scratch cards, crash games and bingo titles offered by the casino. This is what makes 100% first deposit bonuses so popular with players.

What is a 100% matched deposit bonus?

The 100% deposit match is one of the most common bonuses offered by UK online casinos to encourage players to sign up and wager at their sites for the first time.

The premise is simple – the online casino will match the amount you deposit up to a set value. This can be anything from £50 all the way up to £1,000 or more.

No matter how much you deposit, with a 100% match bonus, the casino will give you the same value back in bonus cash – in short, 100% first deposit bonuses double your bankroll.

Still not sure how these bonuses work? Let’s take a quick look at an example.

The math behind a 100% first deposit bonus

Casino A offers new players a first deposit match bonus of 100% up to £100. This means that if you deposit £100 of your own money you can claim £100 in bonus cash from the casino. In total, this would give you £200 to play with, broken down as follows:

Your deposit: £100
Matched deposit bonus: £100
Total bankroll: £200

But you don’t have to deposit the full £100 to receive the 100% deposit match. Depending on the minimum deposit limit set by the casino and the terms and conditions of the bonus offer, you could deposit as little as £10 and still receive the 100% match. In this case, you’d get £10 in bonus cash, giving you £20 to play with.

You can deposit more than £100 but you'll only receive a maximum of £100 in bonus cash as this is the match limit set by the casino.

Why claim a 100% deposit match bonus

Why wouldn’t you want to double your bankroll? If you’re still not sure what value they can add to your play, here are some of the benefits of a 100% first deposit bonus.

Use the bonus cash to boost your bankroll and play for longer without having to deposit more of your own money.

The matched value can be high at some online casinos, allowing you to claim a big bonus when you sign up and play for the first time.

Use the bonus cash to try the casino. If you like what it has to offer, you can then use your own funds to keep playing and then make additional deposits.

There are plenty of UK online casinos offering 100% matched deposit bonuses so no matter what your preferences, you will find a wide selection of brands to choose from.

The bonus cash you receive can be used on all games in the casino lobby, unlike other bonuses such as free spins that have to be played on specific slots.

Find the best online casinos for you

Comparasino is here to match you up with UK online casinos that offer the bonuses and experiences you’re looking for.

When you sign up at Comparasino, we’ll ask you to tell us what you want from an online casino. Don’t worry, you can answer just three questions before firing up our powerful search engine or answer a few more questions to really narrow down the best online casinos for you.

Once you’ve told us what you like, our smart recommendation engine generates a list of online casino sites that match your preferences. We then drop these brands into your own individual portal.

Each time we onboard a new online casino that meets your preferences, it’s automatically added to your list for you to play when you’re ready. This means less time searching and more time playing. What’s not to like about that?

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How to claim a 100% deposit match bonus

Claiming a 100% deposit bonus could not be easier – simply follow these steps.

  1. Browse and compare all 100% first deposit bonuses using our tools and filters.
  2. Once you have found the brand and bonus you’re looking for, check the bonus T&Cs.
  3. If you are happy with the T&Cs, click “Play”.
  4. Follow the casino sign-up process and make a deposit using your preferred payment method.
  5. Once you’ve made your deposit, you’ll receive your 100% match bonus cash straight away.
  6. Use your bonus cash to play slots, table games, scratch cards, crash games, live dealer, bingo and more.

100% deposit bonuses and a few things to consider

There’s no such thing as a free lunch, right? The same theory applies to online casino bonuses, including 100% deposit match offers. And that’s why casino offers have T&Cs. 

The terms and conditions are specific to each online casino bonus, so it’s important to read them and understand what they mean before claiming an offer.

This is because the T&Cs can reduce the value of the bonus when you factor in things like win limits and wagering requirements.

That’s not to say the 100% deposit match bonus does not add value to your play, but being aware of the T&Cs means you know exactly what the bonus ultimately delivers.

100% deposit match T&Cs to watch out for

T&Cs can be quite lengthy, so below we have broken out the key terms to be aware of, what they actually mean and the impact they can have on the bonus offer.

Time limit to use the bonus - Once you have claimed the bonus, you will have a set period of time to use it before it expires. This can be as few as seven days, but in most cases is 30 days or more.

Win limits - Most casinos impose limits on the amount you can win from a 100% deposit bonus. Even if you win more, you will not be able to withdraw it as cash.

Wagering contributions - Some games contribute more to the wagering requirement than others. Slots tend to chip away the most so if you want to play table games, it will take longer to clear.

Minimum deposit to trigger the bonus - Most 100% deposit bonuses will have a minimum deposit you need to make to trigger the promotion, usually between £10 and £20.

Payment method restrictions - If you deposit with digital wallets such as Skrill and Neteller, some online casinos will not allow you to claim the 100% first deposit bonus.

Wagering requirements - The number of times you will have to wager the bonus or winnings from the bonus before it can be withdrawn as cash - more on this below.

Wagering requirement time limit - Casinos often set a time limit for you to complete the wagering requirement before the bonus is forfeited. This can be anything from seven days to a month.

Casino bonus wagering requirements explained

The wagering requirement is the number of times you have to wager the bonus amount or your winnings before you can withdraw the bonus amount or your winnings as cash.

Wagering requirements vary significantly. Low wagering casinos will impose playthrough requirements of between 10x and 30x, but they can be as high as 65x at some brands.

The good news is there are a growing number of UK online casino sites that impose no wagering requirements whatsoever – although the bonus value offered is usually much less, it is your money to play with and withdraw as and when you want.

Calculating the wagering requirement on a 100% deposit bonus is pretty simple. Here’s what you need to do. Take the bonus amount claimed or your winnings from the bonus (check the T&Cs to see which it is) and multiply this by the wagering requirement

This will give you the total amount you have to wager before you can unlock your bonus or winnings as cash.

How to calculate the wagering requirement

Still not sure how it works? Here’s an example of how to work out the wagering requirement:

You’re offered a 100% deposit match bonus up to £100 with a x30 wagering requirement on the bonus amount. You deposit £100 to claim the full £100 bonus match.

Bonus: £100
Wagering requirement: x30
Amount to be wagered: £100 x30 = £3,000

This doesn’t mean you have to deposit and lose £3,000, just that you need to cycle that value through the casino before you can unlock the bonus money as cash, or if the wagering requirement is applied to your winnings, your winnings as cash.

Remember – you don’t have to claim a welcome bonus to sign up to and play at an online casino. There are plenty of other factors to consider when deciding where to play and that ultimately will have a much bigger impact on the experience you receive.

An important word on responsible gambling

Online casino is fun and enjoyed by millions of people across the UK. But it’s important that it does stay fun and that you remain in control of your play. Because we only partner with UK-licenced online casinos, each of the brands listed on Comparasino offers the tools you need to do this.


But some of these tools might be unfamiliar and it can also be tough to determine if you, or a family member or friend, could potentially have a gambling problem. That’s why we’ve created a Safe Gaming Hub where you can find information about all the responsible gambling tools offered at online casinos, how they work and which ones might be best for you.


It also contains insights into some of the early signs of problem play to be aware of in yourself and others as well as direct access to charities and organisations that support those with problem gambling habits.

Head to the Safe Gaming Hub
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