Bojoko helps you discover the best casino bonuses. Casino bonuses let you explore games with more money to bet. There are many different types of bonuses available, so choose carefully.
On this page, we explain all the perks and benefits for players old and new.
Best online casino bonuses in the UK
When compiling and updating the list below, our casino experts pay attention to many factors: wagering requirements, bonus percentage, bonus value and the fine print of the T&Cs. The result is a list of the best UK online casino bonuses found on Bojoko.
Not every player has the same taste in bonuses. Try the handy quick filters for different bonus types to find exactly what you're looking for. Find the best UK casino bonuses listed on Bojoko!
On this page
There's a vast number of online casinos operating in the UK and most of them offer bonuses. At first glance, many of these may seem appealing. However, scratching the surface often reveals terms that are less than friendly to the player.
On Bojoko, we ask the casinos to provide tons of details about their bonuses. Our casino listings display all of this info in a clear format. Use our selection tool to filter and sort casinos based on their bonus details.
In addition, you can read reviews and ratings from genuine players and experienced casino testers. As a member, you can rate casinos and write reviews as well.
Casino bonuses are a way for online casinos to attract new players, reward loyal customers and reactivate existing clientele. When you take a bonus, you can play longer and get a better idea of what the casino has to offer.
Bonuses come in many forms. The most common are:
Free spins - free rounds in pre-selected slots
Bonus funds - casino money that needs to be used in the games
Cash - money that has no strings attached and can be withdrawn
It's also important to understand the difference between deposit and no deposit bonuses:
No deposit bonus lets you try the casino without making a deposit and risking any of your own money.
Deposit bonus gives you bonus money and/or free spins, but you need to make a deposit to claim it.
We cover these in more detail below.
Different bonus types
This section gives you an overview of the most common bonus types. Check out the links to find more detailed information on dedicated pages.
No deposit bonuses
Many casinos hand out no deposit casino bonuses to new players when they first create an account. You don't need to make a deposit to claim this bonus - just register and verify your account details. No deposit bonuses usually include one or more of the following:
Bonus money or free chips
A spin of the casino wheel with random rewards
How to claim a no deposit bonus?
Choose a casino offering a no deposit bonus
Create and verify your account
Claim the new player sign-up bonus
Bonuses usually come in bonus funds, tied to wagering requirements
Complete the wagering by playing the games
When the wagering is done, the remaining bonus funds are added to your real money balance
Before you can withdraw, you'll need to confirm a banking method by making a deposit
Deposit match bonuses give you a certain percentage of your deposit sum as bonus money. If you win with your original deposit, you won't need the casino bonus. If your deposit runs out, the bonus is there as a safety net.
Deposit bonuses differ in the following ways:
Free spins and other goodies thrown on top
Other terms and conditions
The best online casino welcome bonus packages feature decent size bonuses with fair terms. On our Deposit bonuses page, we explain this in more detail. You can also return to our bonus list and apply the Best deposit bonuses quick filter.
How does a deposit bonus work?
Choose a casino with a deposit bonus
Create and verify your account
Choose your bonus and make a qualifying deposit
The bonus funds are credited to your account, separate from your deposit
You first play with your real money balance. The bonus is there as a second chance if your deposit runs out
Play the games with bonus funds to complete the wagering requirements.
After the wagering is done, the remaining bonus funds become real money which you can withdraw
Best casino bonus criteria
"The best casino bonus" doesn't mean the same thing for every player. That's why it's hard to name a single bonus that's the top choice for everyone in every situation.
However, there are some factors that make one bonus more appealing than the other. The best online casino bonus is a combination of:
Decent no deposit bonus to test the casino
Deposit match bonus up to hundreds of pounds
High bonus percentage
Low wagering requirements or no wagering at all
Low minimum deposit that qualifies for the bonus
Use our bonus tool to find the top casino bonuses in each category.
Top 5 casino bonuses
Here's a hand-picked bonus list compiled by Bojoko's experts. All of these casinos offer a top online casino bonus that ticks most boxes listed above:
Click on the links to see detailed info about the bonus. You can also read reviews from our community members and casino testers.
Best bonuses for beginners
If you're only taking your first steps in the world of online gambling, different kinds of bonuses may seem confusing. Pick the wrong bonus and you risk running foul of the terms and conditions.
That's why beginners should do two things:
Choose bonuses that are easy to understand
Manage your expectations
No deposit bonuses and free spins offer a soft landing. They're perfect for trying out the casino without risking your own money. However, think of these bonuses purely as entertainment. Although you have a theoretical chance to win real money, don't expect to break the bank with freebies.
When you're good and comfortable with the casino, you can move onto deposit bonuses. There, your preferences should be:
All casino bonuses come with some strings attached. The idea is to guide players to use the bonus on casino games and limit the risk to the casinos.
Every casino and every bonus type has its own specific terms. Some terms are very strict, while others are basically irrelevant to most players. It is always good to read the terms, so you know what you are agreeing to and how you should be playing.
Here's a quick overview of the terms and conditions you may encounter:
Wagering requirements: How much you need to be before you can withdraw your bonus
Minimum deposit: The smallest deposit sum that qualifies for a bonus
Time limits: The time you have to claim the bonus and complete the wagering
Max. bet: The largest bet per round allowed when wagering your bonus
Restricted games: Not every game helps you complete the wagering
Winning caps: The maximum amount you can withdraw even if you won more
Minimum withdrawals: Casinos can put limits on how little you can withdraw
Excluded banking methods: Deposits made with certain payment methods don't qualify for the bonus.
Forbidden strategies and irregular play: If you abuse game mechanics, your bonus will be removed
This may sound confusing and intimidating. However, we want you to be a well-informed player who's ready for everything. Below you can find all of the common terms and restrictions broken down and explained thoroughly.
Wagering requirements are the most common condition you see. It simply means the amount of money you need to bet before the bonus funds can be withdrawn. It is normally shown as a multiplier that is based on either your deposit, bonus or both.
EXAMPLE: If a bonus has a wagering requirement of 45x (D+B):
45 = number of times you have to bet
(D+B) = the sum of your deposit and bonus money you got
Wagering requirements can refer to either the bonus amount only, the deposit amount only, or both the deposit and bonus amount together. Bojoko uses the following format to help you easily compare bonus wagering requirements in our casino reviews and sorting tools:
45x (B) = bet your bonus amount 45 times
45x (D) = bet your deposit amount 45 times
45x (D+B) = bet the total sum of your deposit and bonus 45 times
Wagering requirements usually range from 20 to 50 times the original bonus amount, but this figure varies from one casino to the other and can also depend on the bonus type or percentage. Anything above 35x (B) is considered high.
The wagering for Free Spins is usually checked from the amount you win from said spins.
Minimum deposit is pretty self-explanitory. It just means the smallest deposit you can make to get the bonus.
Usually you can get the basic match bonus with a deposit of 20 pounds. The casino might have a minimum deposit of £10, but that alone won't be enough to get the deposit bonus.
Minimum deposit is something that plays a major role in high-roller bonuses. These deposit bonuses are often 300%, 400% or even 500% and can go as high as thousands of pounds. The catch is that you need to deposit a large sum to get them. A high-roller bonus with a minimum deposit of £500 is nothing odd.
Time limit is one of the least important terms simply because you are always given enough time. This term just means that you have a set amount of time to complete your wagering or the bonus will be removed.
A common time limit for a deposit bonus is 7 or 14 days. This is plenty of time for even the largest bonus.
One thing to note is that some free spin offers have very short time limits. For example, if a casino gives you 10 free spins a day, then you will have 24 hours to play those spins.
Time limit is basically there just so people don't forget about their bonuses. Casinos don't want players coming back a year later and asking about their unspent bonus funds.
Max bet simply means the maximum wager you can place with a single round while using bonus funds. Most common bet limit is £5.
This limit does include every single boost and extra feature you could add on to your bet. If the game you play has any of these alternate ways to spend money, just make sure none of it is worth more than the maximum bet limit.
If you ever make a mistake and play with a higher bet than you are allowed, immediately contact the customer support. If you are open about your mistake, they might let it slide.
This is a big one. When you get a bonus, its terms will have a list of games that you can't play and some games that aren't worth playing. Make sure you know them, because this is the most common reasons why people lose their bonuses.
When casinos talk about restricted games, they have a few categories. Some games fulfil your wagering requirement less than 100%, making them less desirable. Some on the other hand are simply forbidden and playing them with bonus funds is a breach of terms.
Casinos have three mechanisms to restrict the games:
Banned - Playing these games breaches the T&Cs and voids the bonus
Non-contributing - You can play these games, but it doesn't count as wagering
Partially contributing - The bets placed in these games only count as part of their value
EXAMPLE: Playing live dealer blackjack contributes 10% towards wagering. Every £10 bet counts as £1 in wagering.
Restricted games are most often those which have an extremely high RTP (return to player). If the game is likely to give you back what you put in, the casino doesn't want you playing it.
Winning cap is not a common term, but it shows up especially when a casino has a generous free spin offer. Winning cap is the maximum amount you can withdraw from that bonus regardless of how much you won.
Winning cap is one of the least liked bonus terms among the players. It removes the possibility of you winning big.
Some rare casinos will also cut your free spins short if you have already reached the cap. For example, if you are awarded 100 spins with a £20 cap, and you win those 20 pounds on your first ten spins. Then those last 90 spins will be removed and you just get to keep the £20.
As with deposits, also handling withdrawals costs the casinos money. Besides, they'd rather see you playing that money instead of taking it home just yet. That's why casinos have a minimum withdrawal limit.
As a UK player, you have the right to withdraw your real money balance at any time. However, if your withdrawal is below the minimum threshold, the casino can charge additional handling fees. These can be several pounds, which makes the fees swallow up a large portion of your withdrawal.
In the past, players were able to reverse a withdrawal and to essentially play with any money they had previously decided to withdraw. During the COVID-19 pandemic, the UK Gambling Commission prohibited reverse withdrawals. This measure aims to prevent players from betting away their winnings after they've requested a withdrawal.
Excluded banking methods
It is very common that casinos restrict some banking methods from deposit bonuses. eWallets like Neteller and Skrill are often listed as methods that can't be used to collect bonuses. Also PaysafeCard is occasionally on the exclusion list.
There are a couple of reasons behind these restrictions. One is that eWallets offer the players a slight anonymity, which is against the KYC regulations. Your personal bank account or debit card is easier to connect to you and to know that it is really you using it.
eWallets have been often connected to bonus abuse. Players have used them to find loopholes in the terms and increase their chances of profiting from the bonuses.
Forbidden strategies and irregular play
Casinos often outline betting strategies that are explicitly forbidden in the bonus terms and conditions. Here are the most common ones, and even though not every casino bans them, you should be aware that using any of these strategies can be interpreted as foul play by casinos at their own discretion:
Low-risk bets such as simultaneously betting on both red and black slots in roulette are forbidden with bonus money.
You're not allowed to use your bonus balance just to progress through levels in slots like Castle Builders, Devil's Delight and Robin Hood.
Using low-contribution games (e.g. table games) to grow your bonus balance and then switching to high contribution games to meet the wagering requirements is usually also forbidden.
With all these rules and restrictions, you might wonder if the casinos actually enforce them. Online casinos can and will fall back on the option of a strict interpretation of their T&Cs: if you break the rules even slightly, you lose your bonus money, deposit money and any winnings. It's a scenario you definitely want to avoid!
That said, casinos might overlook minor infractions clearly made in error. You might get away with a single larger bet than the specified maximum if you immediately tell the customer support about it. Also, accidentally playing a few rounds of a wrong game might not result in you losing everything. However, casinos won't let anybody gain an advantage from their kindness and will at least deduct the ill-gotten gains from your winnings.
Interview: Why do online casinos have bonuses?
It may sound counterproductive for casinos to offer bonuses that increase the players' chance of winning. So, why do they do it? We asked James Booth, the Acquisition Operations Manager of Lindar Media, the company behind MrQ Bingo & Slots.
Why do casinos offer bonuses?
JB: "The casino landscape is an incredibly competitive industry and welcome bonuses are used to give customers the opportunity to trial a casino with less risk and more funds (usually) to try the site before they commit to it.
Once the player is a registered customer of a casino, further bonuses are then used to promote new games, competitions and general activity on the site, again to reduce the risk of the player but also to help the casino differentiate itself from its competitors."
With the increase in taxation in regulated markets, particularly the UK, the cost of giving bonuses is a huge liability for a casino.
James Booth, MrQ
Is it expensive for casinos to offer bonuses?
JB: "With the increase in taxation in regulated markets, particularly the UK, the cost of giving bonuses is a huge liability for a casino. The UK's 'Point of Consumption' (POC) tax means that the casino must pay tax on all wagers even if they are free for the customer, so a 100% bonus can effectively double the tax the casino must pay.
So the casino must weigh up the benefits and liabilities and tread a very fine line to remain profitable. All of that is on the assumption that the player loses: if they win of course the cost to the casino is greater still!"
What kind of results do you expect when creating an exclusive offer for an affiliate like Bojoko?
JB: "Exclusive offers allow our affiliates to differentiate from their competitors so we often see different results whether that be positive or negative based on the offer itself. Giving a range of offers has the impact of broadening our appeal as a player may see an offer they prefer on one site over another. Overall we get more volume but the ROI will vary significantly."
How do you define bonus abuse?
JB: "Bonus abuse for us is a spectrum and not something we can define in a few words. All bonuses are designed to give genuine players an improved chance to test the site and ultimately win, however, we always look for individuals or groups of players who are attempting to take advantage of the site or our genuine players in whichever way, shape or form that may take.
As a UK GC regulated company, we have a responsibility to protect our customers, whether that be in terms of responsible gaming or abuse from third parties."
How do you plan campaigns that aren't easy to abuse?
JB: "This comes with experience. Every bonus is open to abuse no matter how thought through it is, so we continuously monitor current bonuses and use learnings from previous bonuses to help guide this process."
How big a percentage of players manages to complete the wagering on the 1st deposit bonus? What about the no deposit bonus?
JB: "The wonderful thing about MrQ is that 100% of our players meet our wagering requirements and they all get their winnings in cash! The same applies for our no-deposit bonus, whereby customers get spins for verifying their mobile number. Everything won by a player at MrQ.com is paid as cash and free to withdraw."
Bonuses are a paradox. If you play at the casino for the socially accepted reason (i.e. having fun), then all bonuses do the trick. They let you play for longer and enjoy the games.
As a smart player, you want to get some kind of monetary benefit from the bonuses, not just use them for fun. In that case, you have to choose your bonuses carefully.
However, gambling is a hobby where you should expect to lose money instead of winning more. That's why you shouldn't be at the casino to make money. Everything you put on the table usually ends up in the casino's pocket.
The bottom line is this: some bonuses offer you a better chance to win compared to not taking a bonus at all. However, it still doesn't make gambling a hobby with a positive expected value. Manage your expectations and focus on having fun.
Casino bonuses and responsible gaming
Casino bonuses are a gift that lets you play more, but they are there for a reason. Casinos don't hand out money just because they are altruistic. Big bonuses and free money are a way to get you to play more.
In the end, casinos are businesses and are there to make money. Gambling is enterntaining, but it can get out of hand. If you ever feel like you are losing control or playing is no longer fun, then it's time to step back. Take breaks, set limits or even stop completely.
Gambling is not a solution to any financial issues. Only play with money you can afford to lose. Play responsibly and play safely.
You want to convert your casino bonus balance into withdrawable cash. This happens by meeting the wagering requirements. Here's how wagering requirements work:
The wagering requirement may apply to the bonus sum (B), your original deposit (D) or both (D+B).
Bonus sum x wagering requirement multiplier = total amount to wager.
Wagering starts when your deposit amount runs out.
Only bets made with bonus money count as wagering.
Completing the wagering turns your remaining bonus balance into withdrawable cash.
Wagering requirements over 35x (B) can be hard to meet.
Not all sites require you to enter a casino promotional code to get your bonus. When a new UK casino reviewed on Bojoko features a first deposit or no deposit bonus code, this info is displayed on the listing page. In addition, you can see the bonus codes on our curated casino lists.
An online casino bonus code is a case-sensitive combination of letters and numbers.
Use the casino bonus code to redeem a special offer when prompted on the casino website.
You'll normally be requested to input the code when you create an account or make your first deposit.
In some casinos, you may need to contact customer support to redeem your code, although this has now become rare.
Many casinos want to save their most generous bonus offers to trusted partners like Bojoko. With a special bonus code or a unique link, you'll get exclusive casino bonus offers that can't be found anywhere else.
Take a look at our bonus list, apply the Exclusive bonuses quick filter and bag some secret goodies.
Cashback bonuses give you back a percentage of your net losses.
EXAMPLE: A casino offers a 5% cashback bonus. You play through your initial deposit of £100 without winning anything. The casino gives you £5 (5% of £100) as a cashback bonus.
Cashback bonus T&Cs may include time limits, wagering requirements and maximum bonus caps. However, cashbacks are usually given as wager-free cash.
Lauri is the Head of Content at Bojoko. He has worked in online gambling since 2016, reviewing hundreds of online casinos, bonuses and games. Lauri has a masters degree in history from the University of Tampere. He is a live casino aficionado who has also created his very own roulette strategy.