Best Casino Bonus in the UK
Our list of the best casino bonuses available right now is ideal for savvy casino players looking for extra value. From Free Spin welcome offers to 100% casino deposit matches, it’s all here. Plus, we’ll explain any fine print or t’s and c’s you need to be aware of. So, let’s reveal the best casino welcome offers for UK players to get you off to a great start.
Latest Casino Bonuses in the UK – September 2025
We’ve scoured the UK casino industry, searching for the biggest and best online casino bonuses for you. Some of these are only available through the iGamingNuts link. To claim them, just click on the green button and follow the instructions.
Top 3 Casino Bonuses in the UK in September 2025
Our casino experts have selected their best online casino bonuses for UK players. This is taking into account overall value, accessibility and wagering requirements.
LottoGo – 100% Deposit Match up to £200 + 200 Free Spins
LottoGo isn’t the most well-known online casino, but it has certainly grabbed our attention with this impressive welcome offer. All new players benefit from a deposit match bonus up to £200, as well as 200 free spins.
This is our favourite UK casino sign-up offer out there right now in terms of value, but there are some important details you need to know. The minimum deposit is just £20 which is reasonable, and anything you deposit up to £200 will be doubled. That’s the great part. The things to look out for (there’s always some) are that your initial deposit must be played through first before the bonus funds are released. In effect, you must lose the value of your initial deposit in order to receive the bonus. So keep this in mind when deciding what amount to deposit. Then once you have the bonus funds there is a 40x wagering requirement. The 200 free spins are valued at 0.10p and can only be used on designated games.
There are other terms and conditions to be aware of such as max bet and max winnings so make sure you read the full terms and conditions before signing up.
BetMGM – Up to £200 Extra + 100 Free Spins
BetMGM is one of the top brands in the UK (and worldwide), so we would expect a nice offer for new players. Thankfully, BetMGM didn’t let us down, as newcomers benefit from a deposit match bonus up to £200, as well as 100 free spins.
This is one of the fairest casino welcome offers we’ve come across. Minimum deposit is just £10 and this must be wagered 30x to release the bonus which is around average for UK casino offers. Once watering is complete, you’ll receive the full 100% match and the 100 free spins without any further wagering. The free spins are to be used on Big Bass Splash, each spin being worth 10p and you get to keep and withdraw any winnings.
Just be aware of the bonus expiry as you need to move quick with only 7 days to complete the offer.
Mr Vegas Casino – 100% Deposit Match up to £200 + 11 Free Spins
Mr Vegas casino makes our top three with a generous offer combining a high value deposit match and wager-free spins too. With a minimum deposit required of just £10, you need to wager this amount 35x to release the bonus funds. However, the funds are not all released at once, they come in 10% increments as you complete the wagering.
Some restrictions apply in terms of the games you can play but there is a reasonable 30 day expiry on activating the bonus and 60 days to wager, so you don’t need to rush.
As soon as you make the initial deposit, the 11 free spins are added to your account. These must be played on the Pink Elephants 2 Slot and come with zero wagering, so you get to keep what you win.
How We Rank the Best Casino Bonus Sites
We base our rankings for the best online casino bonuses on many factors, such as:
- Bonus amount: This is our first stop. Players naturally want high-value casino bonuses. However, its not the only factor.
- Wagering requirements: If a generous welcome bonus comes with unreasonable wagering requirements, the real value of the offer drops significantly! In the UK, the average requirement is 35x, so this should be a good indicator of a bonus’ real value.
- Game restrictions: Do the bonus funds or free spins need to be used on a specific game, or a small selection of games? We like to prioritise casinos on which you’re free to use your bonus as you please.
- Reputation & trustworthiness: All of our recommended casinos are licensed by the UK Gambling Commission (UKGC). We also make sure that the top UK casino bonuses recommended by us offer fair bonus terms and show transparency on responsible gaming and data protection.
Comparison of the Best Casino Bonuses in the UK
We’ve broken down the best UK casino bonuses into categories so if you’re looking for something specific, check out our tables below.
Best Casino Bonuses by Highest Total Value
This ranking is all about the absolute value of each UK casino bonus, not taking into account any wagering requirements. If you want to get the most out of your registration or first deposit, here’s where you should take your business:
| Casino | Bonus | Value per Free Spin | Total Bonus Value |
|---|---|---|---|
| LottoGo | 100% up to £200 + 200 Free Spins | £0.10 | £220 |
| BetMGM | 100% up to 200 + 100 Free Spins | £0.10 | £210 |
| Mr. Vegas | 100% up to £200 + 11 Free Spins | £0.10 | £201.10 |
| 888 Casino | 100% up to £200 | / | £200 |
| Casino Kings | 150% up to £150 + 75 free spins | £0.10 | £157.50 |
| 32Red | 150% up to £150 | / | £150 |
| Fun Casino | 100% up to £123 | / | £123 |
| Duelz Casino | 100% up to £100 + 100 Free Spins | £0.10 | £110 |
| Casumo | 100% up to £100 + 50 Bonus Spins | £0.10 | £105 |
| Funky Casino | 100% up to £100 plus 25 free spins | £0.10 | £102.50 |
| All British Casino | 100% welcome bonus up to £100 | / | £100 |
| Pub Casino | 100% up to £100 | / | £100 |
| Luna Casino | 100% up to £50 plus 50 free spins | £0.10 | £55 |
| Betway | 100% up to £50 | / | £50 |
| Grosvenor Casino | Deposit £20, get a £30 games bonus + 100 Free Spins | £0.10 | £40 |
Another casino that hasn’t made our list, but still offers a high value welcome bonus is Amazon Slots. It offers up to £6,000 in bonus funds over the first three deposits, however, this works out as only a 10% match and there are strict restrictions on winnings based on total deposits. It therefore requires some careful consideration with terms and conditions.
Some UK casino bonuses don’t offer the biggest value, but they have other advantages that make them appealing. Here’s a few other bonus categories you may find useful.
Low Wagering Casino Bonuses
Low wagering requirements offer more freedom to players, by allowing them to withdraw their winnings more easily. Let’s see which of our best casino welcome offers come out on top here:
| Casino | Bonus | Wagering Requirements |
|---|---|---|
| PlayOJO | Deposit £10 get 80 Free Spins | No Wagering |
| Betfred | Bet £10 get 200 free spins | 1x |
| William Hill | Bet £10 get 200 free spins | 1x |
| Lottoland | Bet £50 get 200 free spins | 1x |
| Ladbrokes | Bet £10 get 100 free spins | 1x |
| Coral | Bet £10 get 100 free spins | 1x |
| NetBet | Bet £10 get 100 free spins | 1x |
| Midnite | Bet £20 get 100 free spins | 1x |
| BetMGM | 100% up to 200 + 100 Free Spins | 30x |
| Casumo | 100% up to £100 + 50 Bonus Spins | 30x |
| Duelz Casino | 100% up to £100 + 100 Free Spins | 30x on Bonus + 45x on Spins |
| Luna Casino | 100% up to £50 plus 50 free spins | 30x on Bonus + 60x on Spins |
| Grosvenor Casino | Deposit £20, get a £30 games bonus + 100 Free Spins | 30x |
| All British Casino | 100% up to £100 | 35x |
| Mr Vegas | 100% up to £200 + 11 Free Spins | 35x |
The average wagering requirement for UK online casino bonuses is 35x, so the bonuses above either meet that or offer even better value. Some bonuses come with a 40x, 50x or even 65x wagering requirement, so make sure you understand the terms and conditions.
Best Free Spins Bonuses in the UK
Free Spins welcome offers in the UK are highly popular. Let’s find out where you can get the most value:
| Casino | Free Spins Bonus | Value per Spin | Free Spins Total Value |
|---|---|---|---|
| LottoGo | 100% up to £200 + 200 Free Spins | £0.10 | £20 |
| Betfred | Bet £10 get 200 free spins | £0.10 | £20 |
| William Hill | Bet £10 get 200 free spins | £0.10 | £20 |
| Lottoland | Bet £50 get 200 free spins | £0.10 | £20 |
| Unibet | Bet £10 get 150 free spins and £20 casino bonus | £0.10 | £15 |
| BetMGM | 100% up to 200 + 100 Free Spins | £0.10 | £10 |
| Duelz Casino | 100% up to £100 + 100 Free Spins | £0.10 | £10 |
| Grosvenor Casino | Deposit £20, get a £30 games bonus + 100 Free Spins | £0.10 | £10 |
| Ladbrokes | Bet £10 get 100 free spins | £0.10 | £10 |
| Coral | Bet £10 get 100 free spins | £0.10 | £10 |
| NetBet | Bet £10 get 100 free spins | £0.10 | £10 |
| Midnite | Bet £20 get 100 free spins | £0.10 | £10 |
| PlayOJO | Deposit £10 get 80 Free Spins | £0.10 | £8 |
| Casino Kings | 150% up to £150 plus 75 free spins | £0.10 | £7.50 |
| Luna Casino | 100% up to £50 plus 50 free spins | £0.10 | £5 |
| LeoVegas | Bet £10 get 50 free spins | £0.10 | £5 |
| Pink Casino | Bet £10 get 50 free spins | £0.10 | £5 |
| Jackpot.com | Bet £15 get 50 free spins | £0.10 | £5 |
With several online casinos offering free spins bonuses for UK players, you are spoilt for choice. Some offer it as part of a combination, while others offer free spins sign-up offers as a standalone bonus. Although not featured in our list, Slots Animal does give new players a chance to win up to 500 free spins, however, this can only be won by spinning a wheel so isn’t guaranteed.
Best No Deposit Casino Bonuses UK
No-deposit casino bonuses in UK online casinos are available, however, in most cases they are offered to registered players rather than new players. No-deposit welcome offers are, therefore, very rare. Here’s a summary of some no-deposit casino bonuses at top UK casinos.
| Casino | No Deposit Bonus |
|---|---|
| Slots Animal | 5 Free Spins on Wolf Gold (No-deposit welcome offer) |
| 888 Casino | Spin the Daily Wish wheel to win cash, free spins and bonus offers |
| Casumo | ‘Valuables’ offers such as wager £10 and receive 20 free spins (no deposit required) |
| Betway | Daily Prize Wheel to win cash or free spins |
| Grosvenor Casino | Hi-Lo Daily Game to win cash, free spins and bonus offers |
| Betfred | Mystery Spins (win up to 50 free spins every day) |
| William Hill | 5 Free Spins given weekly to existing customers |
| Lottoland | Freewheelin! weekly wheel to win free spins and a cash prize |
| Ladbrokes | Instant Spins – daily wheel to win free spins, cash prizes, bingo tickets etc |
| Coral | Rewards Grabber – daily game to win free spins and prizes |
| NetBet | Daily Wheel of Gold – to win free spins and cash prizes |
| Midnite | Casino Club – offers regular free spins offers with no deposit required |
It’s important to point out that although all of the above no-deposit casino bonuses do not require a specific deposit to take part, there may be other terms and conditions. For example, you may have had to make one lifetime deposit at some point or you may have to wager a certain amount from your account balance in order to receive the offer.
If you want to learn more, don’t hesitate to check out the best no deposit bonus offers in the UK.
Cashback Bonuses in the UK
Some of our best online casino bonuses are offered by sites that also do cashback casino offers. If you’re looking to extend your gameplay by getting some of your deposits back, this is where to go:
| Casino | Cashback Offer |
|---|---|
| All British Casino | 10% Cashback on All Lost Deposits |
| Duelz Casino | Weekly 10% Cashback on Losses |
| PlayOJO | Earn Back a Small % of All Your Bets with OJO Plus |
The best offers in this category are without a doubt the ones from All British Casino and Duelz. For every lost deposit at these casinos, you’ll get 10% back directly on your account (whenever you want on All British, once a week on Duelz). Let’s say, for example, you lose £20 on slots. With these casinos, you’ll get £2 back! Finding cashback offers higher than 10% is pretty rare, which makes those bonuses so valuable.
Why You Can Trust Our Rankings
At iGamingNuts, we take pride in providing UK players with the best information to help you make informed decisions. We believe in building trust with our readers through some fundamental principles:
- Unbiased Expertise: Our whole team here at iGamingNuts is made up of experts that have spent years immersed in the iGaming world, testing, playing and reviewing some of the best platforms and games out there. They create each review in an honest and unbiased manner, sticking to facts and observation, not speculation.
- Rigorous Review Process: Each review on our site was made thoroughly, extensively testing the casinos or slots features. This same rigorous approach also applies when it comes to finding the best casino bonuses. Not only do we look at value, but we also review each bonus T&Cs to prevent any nasty surprises on your side.
- User Feedback: One of the best ways of figuring out what could be improved at an online casino is to look at other players reviews. We often look at casino reviews on Trustpilot and other platforms to help us identify recurring issues.
- Responsible Gambling: Safe and responsible gambling is our top priority so we ensure our recommended bonuses come from casinos that provide self-exclusion and deposit limit tools. We also make sure that payments are protected and your data would be secured on each platform.
Types of Casino Bonuses
Before diving into the main types of UK casino welcome bonuses, we have to divide those offers into two main categories.
First, we’ve got the welcome bonuses, which constitute the main part of the offers we’ve presented in this article. These are available for new players only, upon registration, and often consist of deposit matches or free spins. Then we have casino bonuses for existing players, which can be claimed throughout time in the form of additional funds, a few bonus spins, or other things.
Now let’s take a look at the main types of online casino bonus offers you’ll be able to find at sites in the UK!
Deposit Match Bonus
This offer is the most common you’ll see as a welcome bonus. It basically matches your first deposit in the form of extra funds, but its percentage and maximum can vary! Some casinos will match 100% of your deposit up to £100, while others might match 150% up to £150.
Let’s take the example of BetMGM and its generous offer of 100% up to £200. If you sign-up on this platform and make a first £200 deposit, the casino will credit an additional £200 to your account! These bonus funds often come with some wagering requirements (30x for BetMGM), so keep an eye out for the T&Cs.
Free Spins Bonus Offers
Another popular type of casino bonus in the UK. It rewards you with a certain amount of free spins which you can use on online slots, which means you’ll be able to spin a few reels without betting your own money! Similar to deposit matches, it often comes with wagering requirements, but a few casinos have free spins with no wagering requirements such as PlayOJO.
If you choose to sign-up on PlayOJO, you’ll receive 80 free spins to be played on the slot Big Bass Bonanza. Each one of those spins has a fixed value of £0.10, so you’ll be able to spin the reels 80 times, betting £0.10 at a time, without using your own money.
Cashback Bonuses
If you’re an existing player at an online casino, you might be able to benefit from this type of offer. A cashback bonus consists of giving you back a percentage (usually ranging from 1 to 10) of your bets, often limited to your losses (but not always!).
At All British Casino, there’s a 10% cashback on all lost deposits, which means that if you played and lost £10, you’ll get £1 back, directly credited to your account.
Low or No Wagering Bonuses
This is one type of bonus you’re going to want to look out for. An offer with low wagering requirements (or even better, no requirement at all) is the best way for you to easily withdraw the wins you get from a bonus. Because you won’t have to go through the hassle of playing any winnings through, you simply withdraw what you’ve won.
At Betfred you only have to deposit £10 and wager it once (1x) in order to receive 200 free spins. All winnings from the free spins are then yours to keep.
Reload Bonuses
A common online casino bonus used to entice and encourage players to keep coming back. It consists of giving you bonus funds when you deposit a certain amount of money in a specific time period.
Once you’re registered with a casino, they will continue to offer promotions to encourage you to deposit again or wager funds. For example, Grosvenor Casino offer a daily ‘wager £10 and get 5 free spins promotion’ for existing players.
Loyalty Programs
These programs are designed to reward you for your loyalty. If you keep playing at the same online casino over and over again, you’ll earn points or “XP” which will give you access to new rewards such as extra funds, free spins, and more!
Let’s say a casino offers 5% of free credits if you deposit at least £100 per month. Once you reach this threshold, you’ll receive £5 in free funds, and if you deposit £10 more, you’ll receive £0.50.
At Casumo, playing helps you level up on their Adventure ladder, each new level coming with a guaranteed reward, with no wagering requirements!
Seasonal & Time-Limited Offers
Online casinos almost always offer seasonal promotions, which are time limited and thematic, depending on the time of the year. It’s pretty common to find bonuses focused on Christmas, Halloween, or even Valentine’s Day. These promotions can come in many forms and often involve playing on games fitting the theme! A good reason to come back every now and then at your favourite casino.
Terms and Conditions of Casino Offers
Before choosing a sign-up bonus, or any other promotion, you should always check its terms and conditions, to avoid any surprise that could prevent you from getting the most out of it. The main terms you should be checking are the following:
- Minimum Deposit & Payment Methods
- Bonus Expiration Date
- Wagering Requirements
- Bonus Value
- Game Limits & Contribution
- Win Limits
While some casinos offer no deposit bonuses, most will require that you make a first deposit on their platform, usually between £10 and £20. If you’re not willing to pay too much, you should be looking for low deposit requirements.
Most bonuses need to be claimed during a specific time frame. If you don’t claim your offer within this time limit, you won’t be able to benefit from the offer anymore. Most online casinos give you between 7 and 30 days to get and use the bonus.
This defines how many times you must wager the bonus before withdrawing. For example, a 30x wagering on a £100 bonus means that you need to bet £3,000 before you can cash out your wins. That’s why offers with low or no wagering requirements are so sought after.
If an offer consists of a certain amount of free spins, don’t forget to check the value of each one of those spins. They’re usually valued at £0.10, but some casinos offer higher values.
Casino offers sometimes come with a selection of games on which you can play your bonus funds or free spins (at PlayOJO, the free spins are to be played on Big Bass Bonanza). Some games might have different contributions to the wagering requirements:
For example, slot games often contribute 100% toward wagering requirements, meaning every £1 wagered counts fully. However, table games like blackjack or roulette may contribute 10% or less, so wagering £10 on blackjack might only count as £1 toward meeting the requirements.
Some online casinos bonus offers have win limits, capping the amount you can earn from them. The higher the better (and no limit is ideal), so don’t forget to check this condition before choosing your bonus.
Be sure to take a look at all those elements before making a decision on your casino bonus offer!
The Benefits of a Casino Bonus
If you’re planning on signing up for a new online casino, you should always try to find the best first-deposit bonus, as it comes with some undeniable advantages. A generous welcome bonus can boost your bankroll, giving you extra funds to play with right from the start. That way you can explore a few more games and place some more bets without risking your own money!
Many of best online casino bonuses include free spins, allowing you to try some no-risk slot spins. Plus, if you claim a bonus with no wagering requirements, you can withdraw any winnings instantly, making these offers even more appealing. Whether you’re looking to maximise your playtime or cash out winnings sooner, choosing from our list of the best UK casino bonus offers can make a big difference to your online casino experience.
FAQ – Casino Bonuses in the UK
What is the best UK casino bonus right now?
The LottoGo Casino 100% match up to £200 plus 200 free spins is currently our top-rated bonus due to its high value and fair conditions.
What are wagering requirements?
Wagering requirements determine how many times you must play through a bonus before withdrawing. The lower the requirement, the better for you!
Can I withdraw my casino bonus wins immediately?
If your bonus doesn’t come with any wagering requirements, you can withdraw any money you win through it. If there are wagering requirements, you’ll need to play your wins a certain amount of times before being able to withdraw it.
What happens if I don’t use my bonus in time?
After a certain period of time, your bonus might expire. If so, you won’t be able to benefit from it anymore. Always check a bonus T&CS for potential time limits.
Do all games count toward wagering?
No, some games contribute less or not at all. Check the casino’s terms for specific game weightings.