The best thing about signing up to an online casino site is getting a welcome offer, or even better again – a welcome package. The UK has some of the best casino bonus offers, and we’re here to help you find the perfect one. With so many different offers, we want to make sure you understand everything there is to know about deposit bonuses, so you can get the best one.
Keep reading this guide for more information on the types of online casino bonus available, the wagering requirements you can expect, and if there’s anything you can do to ensure you continue to receive bonuses long term, because the perks don’t have to stop once you've used your welcome offer.
Within this guide, we’ll be listing some of the best UK casino bonuses on offer from Hideous Slots recommended casinos and letting you know everything you need to know about them.
If you see one you like, you can click ‘Claim Bonus’ to visit the online casino and make sure you get the casino bonus you want.
Each of the casinos listed below are licensed and regulated by the UK Gambling Commission – one of the most reputable regulatory bodies around, so you don’t have to be worried.
Because of the UKGC licence, playing at these brands will always be a fair, safe and secure experience.
We keep track of online casino promotions in the UK so you don’t have to.
Our offers are updated regularly in line with casino compliance.
This means that you can be sure that the offer you see advertised is the one you will receive upon signing up.
We even have some exclusive bonus rewards.
If an offer is exclusive it means you can only get this casino bonus when you claim it from us, exclusive to Hideous Slots UK players.
No matter whether you're a seasoned pro or you've never taken a first deposit casino bonus, we can help you further your knowledge and find the best option for you.
Put simply, casinos offer a welcome bonus so UK casino customers will sign up.
The UK is a competitive market, and each British casino is competing with all other casinos, so there has to be something to make a casino seem attractive.
If there was no welcome bonus, there’s a good chance many UK players would never change casinos after signing up.
As long as they had access to their favourite slot games, there would be no incentive for them to move.
Through offering a welcome bonus, a British casino knows players will sign up, and will then see the full experience the casino is offering.
The casino will hopefully then give the player a reason to stay.
There are a number of different casino bonuses available to UK players.
We’re going to explain the kinds of casino bonus you might see, and help you make an informed decision on which bonus will be right for you.
It’s important to have this information to hand when you do decide to sign up and take a new casino bonus, as some casinos offer multiple bonuses to choose from.
You might find a site that offers a slots bonus, a live bonus, a deposit match bonus and a free spins bonus, but you will only get to choose one to use as your offer.
Knowing how each bonus works will help you more than you realise, and ensure you find the best casino offer – including one that can be used on your favourite slot games.
Whilst some people interpret a welcome bonus as free money upon signing up to a casino, these offers are merely intended to extend your play.
They will always come with terms and conditions, and wagering requirements.
Deposit bonuses, or cash bonuses, are some of the best casino promotions.
These bonuses, which are also referred to as a deposit match bonus, are quite simple to understand.
It’s all about the percentage when you are deciding if you want to opt for this offer.
When we say the percentage, we mean the percentage the deposit match bonus will give you on your first deposit to play slot games.
So, if you have a casino offering a welcome bonus of 100% up to £100 on your first deposit, it means they will match 100% of your first deposit – all of it.
They will do this up to £100, meaning £100 is the largest amount of money they will give you.
In even simpler terms; you deposit £100, and they will give you £100 to top it up.
A 100% bonus is the industry standard, especially on a first deposit, but it’s not uncommon to see a lower match offer than this – for example, 50% up to £100.
In this instance, the casino will only match half of the money you’ve deposited, and this is again up to a maximum of £100.
So, if you deposit the £100 you deposited above, you would be given £50 to top it up.
If you wanted to receive the maximum bonus funds of £100, you would have to deposit £200.
What is slightly rarer than a 50% offer is an online casino bonus above 100% – although we really do stress that this is quite uncommon.
If you do see an offer that seems too good to be true (400% for example), you should do your research and be sure the casino is regulated and has been thoroughly vetted by someone like us before signing up.
In particular, it's rare to be offered this size of casino bonus on a first deposit, since many UK online casinos have started to wind down their cash casino deposit bonus options.
If, however, you did find a 200% casino first deposit bonus, you would be given twice the amount of cash you made as your first deposit – up to the limit.
Thankfully, as the team that scours the internet to bring you the best offers, we actually do have 200% casino bonuses on offer.
In this case, if your initial deposit was £100 you would be given £300 in bonus funds to top it up, provided this was under the limit.
You would also only have to deposit £50 to receive £100 in bonus funds with a 200% deposit bonus.
You should always check when bonus funds expire.
The best casino sites will give you at least 7 days to complete wagering, but it is important to know how long you have before accepting deposit casino bonuses.
Once your bonus funds expire, they are gone forever – you cannot get them back.
Cash bonuses are some of the best casino offers available in the UK casino market.
They can always be used on online slots, but sometimes they can also be used in the live casino.
If, however, the casino you are joining has a live bonus available, the regular casino deposit bonus will probably not be playable in this area.
When you take a casino bonus, you'll normally have to complete a wagering requirement.
Within the online slots section, game contributions vary a lot of the time depending on the game you have chosen and the wagering requirement associated with the casino deposit bonus.
You can check casino bonus FAQs to find out more about how your bonus winnings and bonus funds contribute to the wagering requirement.
Varying game contributions is just another example of how we have to be careful when taking an online casino promotion bonus.
Don't let the fact that game contributions vary put you off taking an offer. It will often be the case that wagering contributions vary depending on your play.
As a result, you should check which T&Cs apply and where you will be able to spend your bonus funds beforehand, along with any game restrictions.
Each UK casino will have their own eligibility requirements and wagering requirements, but we’ll explain more about these below in the wagering portion of this guide.
Live bonuses will be easy to understand, as they work the same as a cash bonus.
However, if you opt in to a live casino signup bonus, you will only be allowed to use the bonus cash you receive in the live games area of the casino – the live casino.
These bonuses work on a percentage basis with your first deposit, and the percentage match along with the amount you have deposited determines the bonus cash you receive.
You should always be careful when you sign up to a new casino expecting to receive a casino games bonus.
If a choice is offered, be sure to read carefully and ensure you have selected the right offer.
If you aren’t someone who usually plays live casino games, it could be quite disheartening to realise you can’t spend your first deposit bonus on casino slots.
However, if you are partial to casino games or live game shows, this bonus could be the perfect one for you.
Live Games bonuses are slightly less common to see than regular cash bonuses at a first deposit offer.
The good news is that some UK casino sites will allow you to use your generic first deposit bonus on live casino games or live casino game shows anyway.
If they don’t, it’s usually because they offer a live online casino bonus specifically for use on casino games, so you won't be disappointed either way.
No matter how you approach one of these offers, always check which T&Cs apply.
Whilst there is still a plethora of bonus cash and live casino bonuses to choose from, many UK casino sites have opted to change their welcome offers to a free spins welcome offer.
Free spins bonuses do exactly what they say on the tin – casino players are given free spins to play through.
Free spins may be awarded on one specific game, or you may be given a choice of games at a UK casino – but you must use your free spins on one of the available games.
Free spins bonuses are usually awarded on the minimum available stake; either 10p or 20p per spin depending on the game.
This may seem like a low stake, but for many casino players this is their regular stake, and we’ve seen a lot of people hit it lucky on their free games.
If you’re given 50 free spins, there’s plenty of chances, and we know it only takes one spin to see huge free spin winnings.
The most important thing to be aware of when taking an initial deposit bonus of 50 free spins or more is when your free spins expire.
With a free spins offer, you will only have a certain amount of time before the spins expire.
You might find that free spins expire after 24 hours, or you might find that spins expire after 7 days – there's no ‘rule' to this, which is why it is crucial to check.
You will often see that there is a term similar to ‘bonus spins valid 24 hours'. This is the expiry.
This doesn't just mean when your free spin winnings expire in regards to completing the wagering requirements.
This is just how long you will have to use your free spins at welcome bonus sites.
UK online casino bonuses will often come with accompanying free spins even if this is not the entire offer.
In these circumstances this will be less spins than a standalone free spin welcome offer.
You may get 100% up to £100, plus 50 free spins for example, whereas with a regular free spin offer you may be awarded 100 free spins, or even 500 free spins or more.
Casino players may even find that they are awarded 50 free spins per day over multiple days.
There is no official max free spins that you can see awarded as an initial deposit bonus.
There’s some additional good news here; free spin bonus offers can come with no wagering requirements.
This means you will see winnings paid into your cash deposit balance. Since only bonus funds count towards wagering, there is no requirement to have bonus funds with a no wagering bonus.
In these instances you get to keep your bonus spins winnings with no concern for turnover, whether you have 50 free spins or 500 free spins.
This is what makes no deposit free spins the best casino online bonus in the eyes of many players.
Nothing in life comes free, right? Wrong!
Many casinos in the UK offer a no deposit bonus, and it really is just that – a bonus that you get without depositing.
There’s no fine print that you get your no deposit bonus after first depositing and losing, it’s just an additional perk that some casinos choose to offer.
A no deposit bonus will more often than not come in the form of free spins.
This may be a 10-15 free spins no deposit bonus just for signing up, or it may be free spins in exchange for verifying your phone number.
After playing slot games bonus winnings will be subject to wagering requirements since no deposit was made – you won't see a no deposit bonus that also has no wagering requirement.
Receiving a free spins no deposit bonus is a great way to kick start your journey into a new online casino.
Alternatively, you may be given a free spins no deposit bonus for referring a friend, and the friend may not have to make a deposit either.
Although the amount of free spins awarded is quite small in these no deposit casino promotions, it is a freebie, and it would be crazy to turn it down.
Who knows what could happen in one of those 10 spins?
If you lose, you haven’t had to deposit, and if you win, you surely won’t regret taking the offer.
Welcome packages are the holy grail of casino bonuses, and for good reason.
A bonus package isn’t a different type of bonus, per se.
Instead, it’s multiple bonuses from the list above, tiered across multiple deposits, meaning you can be rewarded the first, second, third and sometimes even the fourth time that you play.
The best news? Your bonuses aren’t affected by the fact that you’re offered so many – you still get great offers at each tier, with no requirement to take the offer following the one you’ve had if you don’t want to.
A welcome package can offer different types of bonus at each stage, or it may offer multiple cash or free spin bonuses.
Alternatively, you may be given something like a package of 800 free spins, with 200 awarded across each of your four initial deposits.
You will usually find that with package casino promotions you will be awarded your free spins on classic games, like Sahara Riches Cash Collect, or new and popular games, like Big Bass Bonanza.
When a bonus package is available, you’ll be able to read about it and understand what is being offered prior to signing up.
You will be able to see which T&Cs apply, how you can use your cash stakes, max bet limits, and max free spins winnings.
It is particularly important to check which T&Cs apply with a package offer, because each individual offer may have different terms that apply.
Welcome packages are becoming rarer in the UK, so if you find a good one, we recommend snapping it up while it lasts.
There’s a reason these are widely considered the best UK casino bonuses.
Eligibility does of course vary with each casino, but there are some sure fire eligibility requirements you can expect, and we’re here to help.
We’ve reviewed dozens of deposit bonuses, and part of that is reviewing the T&Cs, so we’re able to help you know what terms you can expect, and what not to expect.
It’s important that if you see something that isn’t quite right, you recognise it and can react appropriately.
Firstly, you must be 18+ to claim deposit bonuses because you must be 18+ to sign up to a casino.
Every Hideous Slots recommended online casinos bonus is with a brand that is regulated by the United Kingdom Gambling Commission.
Part of this regulation is that an online casino is required to vet and electronically verify UK players before they sign up to play slot games.
If the casino cannot verify that someone is 18+ when they sign up, the account will be suspended until proof is offered, so there would be no point in anyone under 18 attempting to sign up.
Secondly, you must be a new customer to claim one of the best online casino bonuses we are discussing today.
No one should ever attempt to get around this rule or try to access deposit bonuses when they shouldn't – this will only lead to disappointment.
Even if you have had an account with a casino in the past and it has been closed for multiple years you still will not be allowed to open a new one; you would have to reopen your old account.
We know it can be disheartening to be a more established player that has already taken most of these bonus offers, but unfortunately you cannot sign up and attempt it again.
These players instead should keep an eye out for casino sites offering deposit bonuses to give cash funds or free spins on slot games through ongoing rewards.
Further down this guide we’ll be discussing what you can do to receive ongoing perks and promotions.
And thankfully, there are numerous casino bonus sites offering loyal players great rewards for making a qualifying deposit – as often as weekly or daily.
You must make a minimum deposit, except in the case of a no deposit bonus.
If you have a cash welcome offer, live casino bonus, a free spins bonus or a welcome package, you will always have to make a qualifying deposit.
This is normally £10 or £20.
Casinos have to set a minimum threshold for their offers but be sure to check what this value is before depositing, as you want to be sure you deposit enough to activate and trigger the bonus.
Just because the last welcome offer you took had a £10 minimum deposit does not mean the one you plan to take next will.
With the exception of a bonus package, you must activate each of these casino bonus sites offers on your first deposit.
This is why the point above is so crucially important.
If you deposit £10 on your first deposit and the minimum deposit to trigger the casino bonus is £20, you may miss out altogether.
The functionality is not usually in place to roll this offer over to your next deposit, and it would be disappointing to miss out on a casino bonus as a result of not reading the small print.
Keep an eye out for which payment methods are not eligible to claim the casino offer.
You may find that whilst e-wallets are some of the most popular methods for gambling in the UK, they can deem you ineligible to claim the offer.
Always check this before making PayPal, Skrill or Neteller deposits with the intention to claim a casino sign up bonus.
Speaking of small print – when you see a casino bonus advertised, you will always see small text underneath.
These are known as significant terms, or sig terms, and they are important to read.
There will usually be a longer list of terms available in the casino or bonus terms, but the significant terms are the ones the casino has determined to be the most important, so why would you not read them?
Finally, always be sure to check if there is a bonus code when you plan to take a casino offer.
This may be ‘WELCOME', or in the case of an exclusive offer may be something like ‘HIDEOUSSLOTS'.
Ensure you put this bonus code in if it is required – you will find it in the Significant Terms.
This is again an important thing to be aware of – in cases where a bonus code must be provided in order to claim the offer, your offer will not be activated without the bonus code.
Therefore, you always want to check this information thoroughly.
With this in mind, the best online casinos make it easier than ever to claim your casino sign up bonus – either by not requiring a code or auto filling the code for you.
One of the most important things to be aware of before claiming online casino bonuses is the wagering requirement that is associated with it.
If you aren’t sure what wagering is, it is what the casino expects from you in exchange for giving you an offer, and it needs to be completed before you cash out.
Wagering refers to the number of times you must turnover, or spend, your bonus funds.
Let's say you have claimed £100 in bonus funds and you have a 35x wager attached.
This means you must place £3,500 worth of wagers before your bonus funds will convert to cash and be able to be withdrawn.
Thankfully, each £1 spent is £1 wagered – win or lose – so wagering isn't quite as difficult as it can seem at first.
The lower the wagering requirement, the better. Always aim for anything under 35x, but anything up to 50x is fine if the bonus attached is lucrative enough.
Thanks to the UK Gambling Commission, all online casino bonuses in the UK must be non sticky.
This means your real cash deposit must be held separately to your bonus funds.
This also means that only bonus funds count towards wagering and you will only be tied into your wagering requirement once you enter into bonus funds after exhausting your cash funds.
If you win whilst you are still spending your cash stakes, you can withdraw.
Withdrawing, even if you don’t withdraw your full balance, will forfeit your bonus, and remove any bonus funds from your balance.
Outside of the UK bonuses may be sticky, where you are tied into wagering from the moment you deposit.
If you have received a wager free casino bonus, for example no wagering free spins, you will be able to withdraw at any point.
Always be aware of the fact that no wagering bonuses and no deposit bonuses in particular will often have a maximum withdrawal amount.
Once you enter into wagering, you will find that you have a number of restrictions that you must adhere to.
The first and most obvious is the maximum stake you can play at.
With most online casino bonuses, this will be £5 – but always check casino bonus terms, as the payment method you have used could lower this.
Secondly, you must be aware of the games that you choose to play.
You will usually not be able to play any jackpot games when you have an active bonus, and you will not be allowed to save any bonuses to open later; this is considered bonus abuse.
You may also find that some other slots are exempt from wagering at UK casino bonus sites.
This ranges from the game either simply not contributing to your wagering requirement, or the game rendering you ineligible to withdraw and forfeiting your bonus.
Always check terms for a list of games that are not allowed.
Finally, as we mentioned above, always look out for a max bonus conversion, which is the maximum amount you will be able to withdraw from online casino bonuses.
It should be common practice that these restrictions are made simple to adhere to, either by blocking certain games or giving warnings before attempting to play on a higher stake.
Whilst some casinos do this, most do not – the responsibility is on the player to do their research before accepting a bonus.
You are given time to get through your wagering – this is usually 7-14 days from the point of activation.
This can be from the point when you made your deposit and activated your bonus, or from the point you entered into your bonus funds, depending on the bonus.
With free spins, this clock will usually start from the moment you activate them, and it's a much shorter clock – usually around 24 hours.
With deposit bonus funds, this clock will usually start once you enter into bonus funds.
Free spins that accompany a cash bonus usually come with their own wagering requirements and a withdrawal limit of £100 or thereabouts.
However, if the casino bonus was just free spins this could be as high as £300 or unlimited.
Like we mentioned above, cash bonus offers may sometimes come with a max bonus conversion, which means you can only convert the amount of bonus you received so many times.
If you had a bonus of £100 with a max bonus conversion equal to 5x, the most you can convert or withdraw would be £500.
Of course, the conversion will always be higher than the bonus, so there’s not much to complain about when you can withdraw in profit, but it’s something to be aware of when you’re hunting for UK casino bonuses.
Always be sure to check if your wagering requirement is on your bonus funds, or on your cash and bonus balance.
A 100% up to £100 offer turned into a £200 balance may have 35x wagering on your £100 bonus balance, or it may have 35x wagering on the value of your whole balance.
This would double the wager, so check that before starting so you know what you’re in for before claiming an online casino bonus.
The above is the most traditional wagering style, but it is not the only one.
You may find a deposit bonus where wagering must be completed before you receive your bonus funds, with no limit on your deposits.
With this example, you may receive a 100% up to £100 deposit bonus and so you make a deposit of £100.
You know you’re waiting on a £100 bonus, and your wagering could be 25x, but you don’t get your bonus funds straight away.
You have to wager £2,500 before you receive your £100 bonus, but once you do receive it is not bonus money – it goes into your cash balance, available to withdraw immediately.
With these offers you can usually make multiple deposits to complete your wagering, provided you do so within the time limit (normally 7-14 days).
Placing any withdrawal will forfeit your deposit bonus.
Alternatively, you may have the above situation, but rather than waiting for you to complete wagering to give you your £100, you may be given £10 each time you complete 10% of the wagering.
This option is even better again, as you can withdraw and forfeit your bonus whenever you would like, but you may have already claimed 50% of your deposit bonus when you do this.
Knowing what to look for in a deposit bonus is crucial to making sure you get the best deal and the most bang for your buck.
Independent review sites like ours will provide you with a host of deposit bonus options to choose from, along with any relevant terms and reviews on the casino as a whole.
By choosing a deposit bonus from us, you can see exactly what deal you're getting, and know what to expect from your wider casino experience.
Always seek out a lucrative deposit bonus at a UK Gambling Commission licensed casino, with transparent terms and fair wagering requirements.
Additionally, look to take this deposit bonus at a casino that prioritises the customer experience – by offering a variety of payment methods and fast payout options, for example.
Always look for a lucrative bonus that holds value in line with your normal playing style and the online casino games you enjoy.
Ensure you are eligible to claim the bonus; you must be 18+ and a new, depositing player unless you find a no deposit bonus.
Look out for casinos that offer low or no wagering requirements to wade through, so you can request a withdrawal quickly.
Pay close attention to any restrictions in place when you are completing wagering, like maximum stakes or varying contributions.
Taking one of our recommended deposit bonus offers is a no-brainer.
Some players are still opting not to take a casino sign up bonus because they don’t like to be tied into wagering, but that’s the beauty of a bonus at online casinos in the UK – you’re never tied in.
If you’ve had enough fun with your cash and you’d rather have a fresh start on your next deposit without wagering, you can forfeit your bonus and it will be removed from your account balance.
Of course, this option doesn’t make a lot of sense.
Gambling is a source of entertainment, not a source of income, and free entertainment is the best form.
When you're wagering, you’re spending the money you were given by the casino.
Even if you complete wagering with only £50 left, it's £50 that was given to you as free money, and there's no better feeling than walking away in profit after receiving tons of entertainment.
A casino bonus is worth money, which is why they come with wagering terms attached and why they aren’t available on every deposit.
They are a second chance on your deposit, a chance to prolong your enjoyment, and a chance to see a withdrawal.
It’s a nice feeling when you reach the point in your wagering where your remaining wager is lower than your current balance.
At this point you know you’re getting a withdrawal, and you have something to look forward to whilst you’re already having fun.
Even though wagering can seem high at times, people do complete it every day, and enjoy the challenge in doing so.
You also get a great chance when in wagering to try new games that you might not otherwise want to spend your own hard earned deposits on.
We would always recommend taking a bonus when offered, as it will never hinder you to do so at online casinos in the UK.
Even if you want to cancel it, it’s better to have that option than to have opted out at the beginning.
Taking a bonus will never alter your Return to Player (RTP) or the results you will see when playing, as all results are determined by a Random Number Generator (RNG).
Why would you not opt in to one of the best casino offers?
The great news is that the best online casinos don’t stop offering you bonuses when you sign up.
Many casinos are now offering ongoing promotions, offers and perks to keep players interested as time goes on.
These perks can come in many forms, but there are some that you can expect to see time and time again.
We love cashback. It’s one of the best ongoing offers to come from a casino and can come in many forms.
Some casinos offer a set cashback (maybe 10%) on all deposits (minus any withdrawals), credited 24 hours after deposit, provided your balance is less than a certain amount.
Others will take a percentage of each win you receive (on every spin you take) and give it all back to you at the end of the week.
Others again will top up every win you receive and again give it to you at the end of the week, as a special bonus.
No matter how it comes about, it’s nice to know there are opportunities to get weekly cashback from casinos, but it’s important to check in the cashback area, as you may need to opt into this.
If you forget to opt in, it cannot be backdated, so be sure to check this as soon as you sign up.
Emails to alert you that there are free spins waiting on you are great to wake up to.
Free spins will usually be on the minimum stake, but they’re free, and who doesn’t love a freebie?
Consider opting into marketing emails to make sure you don't miss any of these random offers as they may not be around for long.
In particular, free spins offers at online casinos will often expire after 24 hours, so it's good to be on the ball with these.
Many casinos will offer weekly or random match bonuses, between 50-100%.
In fact, some online casinos have a structure in place each week, for example match bonuses on a Wednesday and Friday, and free spins on a Monday and Thursday.
Other days might include spins on bonus wheels, so be sure to check for these upon signing up if this system is in place.
If you have a friend considering signing up for the same casino offer you previously signed up for, be sure to check if the casino has a refer a friend system in place.
You could receive cash or free spins for the referral.
We recommend a number of online casinos with some of the best bonuses available in the UK, and this includes exclusive offers – reserved for UK players signing up through Hideous Slots.
Be sure to check our reviews and casino offers page to see the exclusive bonuses we have.
Our exclusive offers can include wager-free spins on popular games, or enhanced match bonuses.
These offers may include a bonus code, but this will be included in Sig Terms, T&Cs, and our review if required.
We begin to review the casinos with the best casino bonuses by looking at the bonus offer that is available to UK players.
Once we’re sure the offer is worthy of recommendation, we check the licence.
Every casino we recommend is licensed and regulated by the United Kingdom Gambling Commission.
Outside of the UK, we recommend casinos licensed and regulated by the Malta Gaming Authority.
As long as the casino has the coveted UKGC licence and a good welcome offer, we proceed to review it.
We know not everyone will agree on their favourite casino.
Some might not like a casino because the live casino game selection isn’t great, while others don’t ever visit the live casino.
For this reason we like to offer a good selection for all UK players.
We offer written reviews on all of our recommended casinos, with a host of information that we feel is pertinent to making the right decision.
In our reviews we discuss the casino bonus offer, any wagering requirements, and any max bet or withdrawal limits that apply to bonus wins.
We always make sure to include the significant terms under each offer, but it's easy to see these terms so much that you skim read them, so we also offer a written analysis of the most important terms.
Whether it's a bonus code, a maximum bet or a maximum bonus conversion, we'll let you know at the very start of our reviews.
We will also look for any ongoing perks available to regular players at the casino, including cashback offers or free spins rewards.
After this, we discuss the support available.
How much support is there, is there a Live Chat, and when is the support team available?
We always look for online casinos that offer 24/7 support – preferably in the form of a live chat.
If this isn't available we look for adequate support covering peak hours, so we know the majority of players will always have what they need available, and the rest will only have to wait a few hours at the most.
We then include details of the licence.
Even though every casino we recommend is licensed and regulated by the UK Gambling Commission we like to reiterate this in every review.
This means that every player knows they are choosing somewhere fair, safe and secure.
After the legal stuff, we discuss the game selection available.
The best online casinos offer a selection of slots, with options from the most popular providers on the market. This selection should also be regularly updated.
Alongside regular casino slots, we look for online casinos that offer jackpots slots, table games, live casino games and live casino game shows.
Finally, we look at speciality games including bingo, scratch cards, Slingo.
After looking at each of the elements above, we focus on payments at online casinos.
A good casino will make the payments process easy for you, in a number of ways.
Firstly, there should be a vast selection of payment methods to suit every player and their needs.
Whether you're looking for the privacy of an e-wallet or the security of a debit card deposit, the casino should offer you options.
Remember though: e-wallets like Neteller deposits may not be eligible to claim an offer at UK casino bonus sites.
Secondly, online casinos should offer at least one fast payment method. By fast, we mean withdrawals in as little as 24 hours or less.
Working hand in hand with this is the verification process. We always seek to recommend online casinos that make the verification process simple – so it never holds your withdrawal up.
Not every casino makes it into our recommended casino list, and not every casino is considered one of our best casino bonuses.
All casinos we recommend will be safe, properly licensed and regulated, and have a welcome offer we feel appropriately rewards UK players for signing up.
All the details you need to choose one of our best bonus casinos will be available in our reviews, to allow you to make an informed decision.
Taking an offer at a deposit bonus casino UK is absolutely the right choice to make.
We know it can be overwhelming looking for a new casino, especially if you're also searching for a great casino bonus, but there’s no need to panic – that's what we're here for.
We only review casino bonuses at casinos licensed and regulated by the United Kingdom Gambling Commission at Hideous Slots.
We provide reviews so you can be aware of things like the casino bonus or package, wagering requirements, stake or withdrawal limitations, support, game selection, payment methods, withdrawal wait times, verification, and ongoing promotions.
We want to take the hassle out of finding the best casino bonus, which is why we put this guide together.
There are so many great casino bonus offers in the UK, and the choices can seem never ending, so don’t be afraid to shop around and try different bonuses until you find the casino you want to stick with.
Don’t forget, the best casino bonus sites for you will provide a great and enjoyable experience from the moment you sign up, regardless of if you have bonus wins or you lose.
You can choose one of the bonuses we consider to be one of our best casino sign up bonuses by clicking ‘Claim Bonus’ beside the bonus on this page. Similarly, any other Hideous Slots recommended casino sign up bonus can be claimed by clicking the same button. Once you have completed the sign up process your bonus will be ready to be activated.
You can, but only after you have completed your wagering requirements, at which point your bonus wins will be moved to your real cash balance. Any money still in your bonus balance cannot be withdrawn.
Yes, casino sign up bonuses can be claimed on any device.
We recommend checking wagering contributions and always trying to play games that contribute 100%. Some slots will contribute 50%, and some will contribute 0% but still be available to play. Table games may contribute as low as 50%, unless you have a live casino bonus wherein contributions may be higher. You will also want to check for any disallowed games that will void your withdrawal.
No! Some casino sign up bonuses offer free spins with no wagering – and this includes Hideous Slots exclusive offers. These offers may come with maximum withdrawals from your bonus wins, but up to that amount, whatever you win you keep with no strings attached.
You may need a bonus code to claim an offer, especially if you are claiming an exclusive offer. If you click ‘Claim Bonus’ on any of our recommended casinos you should not need a code, but there is no harm in typing the code in when making your deposit. If there is an associated code, it will be in the Significant Terms.
Yes – there are many online casino offers that offer a package of 500 free spins or more, whilst there are others that offer a cash match offer, plus an additional smaller amount of free spins.
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