The Best Casino Bonus Sites and Promotions For UK | TOP Offers 2025

When it comes to finding the top casino bonus UK deals, there’s always an exciting offer around the corner. If you’re a new player looking for a sign-up bonus and free spins, casino bonus sites like Mr Play and The Vic Casino have plenty to offer. These sites regularly update their promotions to ensure you get extra value every time you play. For example, LuckyVip new depositing customers can receive a £100 Bonus and, in addition, a £7 bonus on Live Casino Games.

BritishGambler helps you find the right casino bonus and welcome offer in 2025 – view the complete bonus sites list and click to claim the promo! Terms apply.

Casino Sign-up Bonus for UK (2025 Promo)

Here are the best casino bonuses and promotional welcome offers for the UK. Claim them today by clicking on the bonus text and code.

Many UK online casinos offer not only great welcome bonuses but also ongoing promotions to keep loyal players coming back. For instance, Lucky VIP Casino rewards its players with not only a welcome offer but also weekly deals, cashback offers, and seasonal promotions that can seriously boost your bankroll. If you want to get the most from your gaming experience, keep an eye out for these bonuses.

Featured Bonuses

Kitty Bingo

Casino

Kitty Bingo: Play £5 Get £25 Welcome Bonus

18+, GambleAware.org.

£5 Deposit Welcome Offer at Kitty Bingo games: Terms: New players only, must enter code KITTY in Bingo Lobby, claim once only, min wager £5, real cash wagers on bingo only,(Exc PayPal) valid 7 days, bonus & wins playable on Bingo (excl. BOB & BGT), 3xWR. Full T&C apply.

Read Kitty Bingo Review

KITTY

Copy Code

Get Bonus

Mr Play

Mr Play Promo Code BGPLAY: Get up to £200 Match Bonus + 100 Extra Spins

18+, GambleAware.org.

MrPlay Casino: Only UK players. After first deposit made, customers will get + 20 Spin for the next 4 days: 1st day after First Deposit: 20 Spins of Finn and the Swirly Spin 2nd day after First Deposit: 20 Spins of Book of Dead 3rd day after First Deposit: 20 Spins of VIP Black 4th day after First Deposit: 20 Spins of Aloha! Cluster Pays Winnings won with spins that require deposit, have to be wagered 35x. Bonuses that require deposit, have to be wagered 35x.

Read Mr Play Review

Get Bonus

Bet365

Casino

Bet365 Casino: Stake £10, Get up to 200 Free Spins. Promo Code “365GMBLR”

18+, GambleAware.org.

bet365 New Player Offer: 10 Days of Free Spins with up to 200 Free Spins. Terms: Min £10 in lifetime deposits required. Offer must be claimed within 30 days of registering a bet365 account. Reveal prizes of 5, 10 or 20 Free Spins; 10 spins on Free Spins reels available within 20 days, 24 hours between each spin. Max. prize, game restrictions, time limits and T&Cs apply.

Read Bet365 Review

365GMBLR

Copy Code

Get Bonus

Let’s look at some top bonuses and hottest picks for UK players. View all casino promo codes here.

Casino Promotions and Exlcusive Welcome Bonus Codes

• The Vic Casino – Get up to £200 + 100 spins with the code VICGMBLR.
• Spin Rio – Up to £200 bonus + 100 free spins, perfect for slot lovers.
• Vegasland – Up to £200 + 100 spins, code: BGVEGAS
• Betfred Casino – 200 wager-free spins for just a £10 stake, no strings attached.
• Lucky VIP Casino – 100% up to £100 + £7 on Live Casino, the code LVGMBLR.

These new player online bonuses provide excellent value, whether you prefer playing slots or live casino games. Remember, that we only recommend bonuses offered by UKGC licensed and approved sites such as Bet365 and Grosvenor Casinos. These gaming platforms offer secure real money apps, fair play, secure payment methods, and responsible gamble tools. This means you can claim your bonuses with confidence, knowing you’re playing at a safe and reputable site.

Bonus Types Available at Online Casinos

The most popular of the casino bonuses is the Welcome Bonus which is for new players. For example, Bet365 Casino offers 100 bonus spins when you stake £10, you get 100 bonus spins. This is perfect if you’re just starting out. The Bet365 Casino deal is slightly better than the Bally Casino offer where players will get up to 90 free spins for betting £10.

Another popular type is the Free Spins Bonus. This is exactly what it sounds like. You heard us correct, free spins on selected slot games! For instance, Betfred Casino has a great offer where if you stake just £10, you get 200 wager-free spins. That means any winnings from those extra spins are yours to keep with no strings attached. Whereas at Quinn Casino, new players will get 50 free spins when staking £10 using the promo code FREESPINS.

Then there’s the No Deposit Bonus, which is sought after. This bonus gives you a small amount of bonus cash or free spins just for signing up with no deposit needed. Oh, and what’s there not to like about not using your own money?

Seasonal Casino Promotions and Limited-Time Offers

Don’t miss out on limited-time promotions! Many UK casinos offer seasonal deals that are worth grabbing while they last. For instance, during Christmas or other major events, casinos like Lucky VIP or Magic Red might offer special bonus spins or exclusive deposit bonuses.

It’s a good idea to regularly check your favourite casino’s promotions page to see what’s available. You might find a flash deal that includes extra spins on popular slots or enhanced deposit bonuses that aren’t always around. These time-sensitive casino promotions can be a fantastic way to get more value without having to invest more of your own money.

Exclusive Welcome Offers

If you’re in the market for a casino new customer welcome bonus offer that gives you the most value, it’s all about finding the right deal. For instance, Spin Rio is offering new players up to £200 in matched bonuses, plus 100 free spins. This kind of welcome package is perfect for those who want to try their luck on some of the hottest slots in the UK. Similarly, Rialto Casino is offering a £300 deposit match bonus along with 200 free spins.

The trick to getting the most out of these UK casino bonuses is to choose a site with lower wagering requirements. It’s all well and good to receive hundreds in bonus money, but if the playthrough requirements are too high, it can take ages to turn your bonus into real cash. Be on the lookout for offers like bet365’s free spins deal, which comes with no strings attached.

Online Casino Referral Bonus Codes

For those new to the online gambling scene, online casino promo codes are the key to unlocking some of the best offers. These codes, like VICGMBLR for The Vic Casino or SPINGMBLR for Spin & Win, are entered during registration or when you make your first deposit. They unlock exclusive deals that are only available to players who use the code, giving you access to extra funds or free spins.

It’s important to remember that some UK casino bonuses require a code, while others don’t. Always check whether you need a promo code to activate the bonus. For example, Rialto Casino requires the code RIALTOGMBLR to unlock their welcome offer of £300 and 200 free spins. On the other hand, Mr Play doesn’t require a code—just a deposit to get started.

Bet365

bet365 Bonus Code: Use 365GMBLR in UK

New to bet365 UK? Bet £10 & to get 50 Bet Credits or receive 100 free spins at bet365 casino. Bonus code: 365GMBLR (2025). T&Cs apply.

18+, GambleAware.org.

Our favourite UK-licensed gambling site. The Bet365 sign-up promo code for UK in 2025 is 365GMBLR. New customers only. Minimum deposit £10. Bet Credits are available for use upon settlement of bets to the value of the qualifying deposit. Min odds, bet, and payment method exclusions apply. Returns exclude Bet Credits stake. Time limits and T&Cs apply. Registration is Required. The bonus code can be used during registration but does not change the offer amount in any way.

Read Bet365 Review

365GMBLR

Copy Code

Get Bonus

Which is the Best Registration Casino Bonus Today?

With offers from top sites like Mr Play, The Vic Casino, and Bet365, you can enjoy a range of free spins, deposit bonuses, and cashback deals. These offers not only increase your chances of winning but also provide extra value for your money.

Sign up today and claim your casino bonus to start playing at the best UK online casinos.

• The Vic new player bonus: get up to £200 + 100 free spins. Use code VICGMBLR
• SpinWin UK: £500 Deposit Bonus, code SPINGMBLR – BEST OFFER!
• Rialto: £300 deposit bonus + 200 Free Spins, code RIALTOGMBLR
• Magical Vegas : £300 new UK player casino UK bonus
• Spin Rio: welcome £200 bonus + 100FS (selected slots)

The Perfect Sign-up Casino Deals

Some of the top casinos are offering incredible bonus deals for registration. Mr Play Casino gives new players 100 free spins and up to £200 as a deposit bonus, perfect for those who want to try different games. Bet365 offers a simpler but equally attractive deal with 100 bonus spins for a £10 stake, making it ideal for slot lovers. And if you’re looking for the best value, Betfred Casino’s 200 wager-free spins for a £10 stake is unbeatable, giving you a real chance to win without having to wager your winnings multiple times.

Our team reviewed the best new customer bonuses currently available now at the UK’s top-rated online casinos. Click “Claim Offer” link to visit the site and use the bonus.

New Customer Bonuses at UK’s Best Online Casinos

200 Spins

All British Casino gives you 200 in Bonus Spins + £100 as a Welcome. Use these credits on Starburst, Gonzo’s Quest or Twin Spin online real money games. Free Spins must be used within 72 hours, and their maximum permitted winnings are £100. The Bonus must be used within 14 days, and the maximum size of wager allowed is £5.

All bonuses and Free Spins are subject to a 35x wagering requirement. Check out our seven independent casinos and new gambling sites for other generous offers.

CLAIM OFFER!

up to £100 Deposit Match and 100 Spins

The new Rialto Casino welcome bonus is currently £100 and 100 Free Spins on Starburst games are also added. The Spin Credits are split in 10 batches of 10. The minimum deposit to qualify is £20, and the 50x wagering requirement is attached. The maximum permitted winnings are capped at 5x the bonus amount. All bonuses must be used within seven days or they will expire.

VISIT SITE CLAIM PROMOTION!

Get £200 + 100 Free Spins

The Vic Casino Welcome Offer is £200 + 100 Free Spins with 3 deposits. There are also 100 Free Spins to use on Fishin’ Frenzy Megaways slots. All welcome bonuses at this online casino are subject to a 40x wagering requirement, with the Spins and the bonus expiring after 7 days.

The maximum permitted withdrawal from the Free Spin winnings is £20. The Welcome Offer is unavailable to players who deposit via an e-wallet like Paypal or Skrill. Check out our page about top slot bonuses.

VISIT CASINO SITE CLAIM OFFER!

Deposit £10 Get 200 No Wager Spins

The Betfred (on our top 20 list) online casino welcome bonuses are the awarding of 200 Wager Free Spins. New customers only with £10 min stake in casino slots within 30 days of registration. After opt in a max. of bonus 200 Free Spins on selected games are credited. The free spins expire after seven days. iOS app restrictions may apply.

The offer, which has no wagering requirements, is not available in NI. Full T&Cs apply. How do you claim your welcome offer at Betfred if you are in the UK? The bonus can also be claimed and played via the casino’s mobile app. Here is a complete list of the best casino apps and bonuses for the UK.

VISIT BETFRED TO CLAIM OFFER!

100% Depos Match

The HeySpin current Welcome Offer is a 100% match of the initial stake, up to a value of £25 and 100 Free Spins on Starburst. The maximum bet with the bonus amount is £5, and the maximum winnings from the bonus credits are capped at £100. 50 Free Spins are added to your account immediately.

All welcome bonuses and FS at this site are subject to a 35x wagering requirement before withdrawal.

CLAIM CASINO BONUS!

Bonus 200 Spins

Buzz Casino offers 200 Free Spins as a Welcome Bonus. The minimum stake is £10. 200 Free Spins are allocated instantly. They can be used on pre-selected games only. There is a x20 WR on the Welcome Bonus before winnings can be withdrawn and the maximum winnings from the Free Spins are capped.

This UK casino site’s new customer offer must be used within 72 hours and any initial bet made via E-wallets will not be eligible for the Welcome Offer.

VISIT CASINO SITE CLAIM BONUS!

£200 New User Bonus and 50 Free Spins

To Welcome you to their Casino, Casimba offers a generous £200 bonus and 50 Free Spins for Book of Dead. The second deposit will also be matched by 50%, up to £50. 

The Free Spins must be used within 72 hours, and the maximum win from them is £100. All bonuses are subject to a 35x wagering requirement before any withdrawal can take place.

GET BONUS!

Bonus on 3 Deposits up to £200 and 100 FS

The Spin Rio Welcome Offer is £200 and 100 Free Bonus Spins with 3 deposits, and to be used on Starburst. 20 Free Welcome Bonus Spins will hit your account immediately, the rest will come in portions of 20 per day from day of registration.

The Free Spins total real money winnings are capped at £100. All bonuses and Free Spins are subject to a 35x wagering requirement. Initial deposits made via eWallets will not be eligible for this Welcome Offer.

CLAIM CASINO OFFER!

Reserved for new online sign-ups, the welcome bonus can be more generous than other online gambling offers.

A new player must deposit at a chosen gambling site to claim a 100% or 200% welcome deal. Some welcome bonuses also include free spins to use on preferred slots. One of the best casino sites for welcome bonuses is bet365.

Deposit 10 Get £100

New players in the UK are eligible for a great bonus offer at WinOmania Casino. This welcome package includes up to £100 match bonus and an additional 100 free spins.

The offer is applicable only on the first deposit with a minimum deposit requirement of £10. The maximum bet that can be placed with the bonus is £2.

The bonus amount must be wagered 40 times before it can be withdrawn. The free spins are only valid for selected games and winnings from these spins are also subject to a 40x wagering requirement. Free spin winnings and the bonus itself expire within 24 hours if not used.

This offer is applicable only for new UK players who are 18 or above. Please refer to the User Agreement and Terms & Conditions for further details. Be sure to gamble responsibly.

GET CASINO BONUS!

What is a Bonus?

Online casino incentives can take several different shapes. With different types of UK online casino bonuses, it can be overwhelming. Well, that might be the case for beginners. After all, there can be hundreds to choose from.

Any UK online casino website that has bonuses puts the users first. The point of a promotional offer is to convince users to join a particular website. Casinos offer free money, extra spins, or other promo options.

Being granted a casino bonus online can jumpstart your gambling career. However, always make sure to gamble responsibly. Do not let a single casino bonus let you become addicted to gambling.

There were over 24 million gamblers in Britain alone in 2020. That works out to roughly 45% of the nation gambling each month. With popularity rising, more UK residents are getting involved. To draw in new users, there are several UK casino promo deals.

First Deposit Bonus

• Rialto Casino: 100% match bonus up to £300 – TOP UK PROMO!
• Lucky VIP Casino: 100% up to £100
• 10bet UK: 50% up to £250, casino free bets included
• Dream Vegas Casino: 100% up to £300
• Grosvenor Casinos: Deposit £20, Play with £50
• Casumo Casino: 100% up to £25
• Lottomart Casino: 100% up to £100

These casino bonuses match a percentage of the player’s deposit, providing additional funds to play with. The match percentage can range from 50% to 200% or more, up to a specified limit.

Based on the available deposit match offers, we recommend the Rialto Casino for its superb 100% casino bonus up to £300 on your first real money deposit.

What a no deposit deal? These bonuses are given without requiring a deposit, allowing players to try out the casino with free funds or spins. Get it at Mad Slots: you receive 100 no-deposit free spins.

Free Spins

• Betfred Casino: Up to 200 wager-free spins on Age of the Gods: God of Storms
• William Hill: 200 free spins on Big Bass Splash
• Paddy Power: Up to 160 free spins on various slots
• NetBet Casino: Up to 500 free spins on various slots
• Sky Casino: 100 wager-free spins on Age of the Gods slots

Free spins are often part of a welcome package, giving players a set number of spins on specified slot games. They may (MrPlay) or may not come with wagering requirements (bet365 or Betfred).

Best Cashback Offers

These bonuses give players a percentage of their losses back as bonus money. They are designed to reduce players’ risk. All British Casino: 100% deposit bonus up to £100 plus 10% cashback on losses.

Here are some of the top UK casino bonus offers for new customers. Each welcome offer includes a unique bonus code and provides a range of benefits, from free spins to deposit matches. Select your sign-up promo and play!

UK casinos are stepping up their bonus offers in 2025! Our favourite All British Casino gives new players a 100% bonus up to £100, plus 200 free spins. Bet365 also offers up to 150 free spins for new players. These bonuses add serious value to your deposits, giving you more ways to play and win.

New Customer Bonus in 2025

• The Vic Online Casino: Up to £200 on the first deposit & 100 spins (code 2025: VICGMBLR).
• Spin&Win UK Casino: £250 (reg code for 2025: SPINGMBLR)
• Rialto Online Casino: £300 bonus plus 200 free spins (code: RIALTOGMBLR)
• Magical Vegas Casino: £300 bonus for new UK players
• Mr.Play Casino: 100 spins, £200 on £20+ deposit (code: BGPLAY)
• SpinRio UK Online Casino: 100 free bets plus £200 (code: BGRIO)
• WinOmania: 100 free spins and up to a £100 match
• MagicRed Casino: 100% up to £50 plus 110 spins
• Mr.Play: 100 free spins and up to £200

What Makes a Great Bonus?

Not all casino bonuses are created equal. The best casino promotions come with more than just big numbers—they offer flexibility, reasonable wagering requirements, and plenty of game options. A good example is bet365 Casino, where you can stake just £10 to unlock 100 free spins. The bonus spins can be used across a wide variety of games, which is great for players who enjoy variety.

It’s also worth paying attention to how quickly you can withdraw your winnings. Some casino welcome offers have restrictions on how and when you can cash out. That’s why it’s always a good idea to read the fine print and choose casinos with transparent and player-friendly terms. Casinos like Dream Vegas and Pub Casino are known for their quick payouts and low withdrawal restrictions, making them top choices for UK players.

Do you want more bonus deals from the top-rated online casinos? Here you go! At 888Casino, British players can get 88 free spins and they don’t need to make a deposit. Yes, there are no strings attached. Meanwhile, Mr Play UK Casino awards 100 free spins when players deposit £200. After your first deposit, you will receive 20 free spins each day for the next four days on different slots like Finn and the Swirly Spin and Book of Dead. Just be wary of wagering requirements. This deal has 35x wagering requirements. So, if you have a £10 stake, you will need to spend £350 before withdrawing winnings.

Why Casino Bonuses Matter

Casino bonuses aren’t just about enticing new players – they also reward loyal customers. The best casino bonus UK offers provide plenty of value, allowing you to extend your gameplay and try out new games without risking too much of your own money. Take Betfred, for example. They offer 200 wager-free spins on a £10 stake, meaning any winnings from those spins are yours to keep with no strings attached.

• Welcome Bonus: A generous offer for new players, such as Bet365’s 100 free spins when you stake £10.
• Free Spins Bonus: Play selected slots for free, such as Betfred’s 200 wager-free spins offer.
• No Deposit Bonus: Sign up and get a bonus without having to deposit any money, like Mad Slots’ 100 free spins on registration.
• Reload Bonus: A percentage bonus on subsequent deposits, perfect for regular players.
• Cashback Offers: Get a percentage of your losses back as bonus money, such as All British Casino’s 10% cashback.

Similarly, casinos like Bet365 offer simple yet rewarding bonuses, such as 100 free spins for staking £10, which are perfect for slot lovers. These bonuses can significantly improve your chances of winning real money, making them a vital part of your overall strategy.

How to Claim Your Bonus

Claiming a casino bonus is quick and easy. Simply sign up for a UKGC-licensed casino, such as The Vic Casino or Spin Rio, and follow these steps:

1. Sign up and create an account at your chosen casino.
2. Enter the promo code if required (e.g., VICGMBLR for The Vic Casino).
3. Make a deposit to qualify for the bonus (check the minimum deposit required).
4. Claim your bonus, whether it’s free spins, bonus funds, or both.
5. Start playing your favourite casino games.

Always remember to read the terms and conditions of each offer, especially the wagering requirements and game eligibility.

Best Casino Rewards and Loyalty Bonuses for Existing Customers

Best UK Casino Apps

Click to see the top mobile gambling apps for UK players

New UK Online Casinos

Click here to explore the top new UK casino sites to play in 2025!

Minimum (£5) Deposit Sites

Explore the best £5 deposit casinos in the UK and claim your bonus here!

How Do Bonus Terms and Wagering Requirements Work?

Understanding online casino rules and bonus terms is essential. All promotions come with strict play-through conditions, which you must meet to avoid forfeiting your bonus.

Wagering Requirements

All bonuses have wagering requirements, which are the amount you must wager to release the bonus funds. For example, a 30x wagering requirement means you must bet the total bonus amount 30 times before you can withdraw it.

For instance, Jackwin offers a bonus with a 30x wagering requirement on the deposit and bonus amount, a 30-day expiry, and a 20x cap on winnings.

Example:

• You claim a 100% deposit bonus up to £1,000.
• You deposit £1,000, and the casino matches it with £1,000.
• With a 25x wagering requirement, you must wager £25,000 (25 x £1,000) before you can withdraw the bonus and any winnings.

You can track your bonus progress in the casino’s account section.

Game Contribution Rates

Different games contribute various rates towards the wagering requirement:

• Slots: 100%
• Roulette, Blackjack: 20%
• Other Table Games: 10%
• Video Poker: 5%
• All Other Games: 0%

Always check the bonus terms and conditions for specific contribution rates.

Bonus Forfeit

Casinos will forfeit your bonus if you make incorrect bet types or try to use it for ineligible games. For example, you may only be allowed to place a single wager up to 50% of the total bonus amount. Minimal-risk wagering, such as betting on red and black in roulette at the same time can also result in bonus forfeiture. At MrQ, for example, the bonus must be used for the slot Big Bass Splash, and any big wins will need to undergo checks.

Time Limit & Bonus Payout

All bonuses have a time limit. You will forfeit the bonus if you don’t meet the wagering requirements within this time. If you meet the requirements in time, the casino will release the bonus cash to your account, often in increments.

Why Did My Casino Bonus Expire?

Bonuses come with expiration dates so you have a limited time to meet the requirements. Failure to do so will result in losing any remaining bonus funds. No deposit bonuses, however, may have shorter expiry periods.

With many trusted UK casinos available, take your time to compare bonuses and find those offering great value and ample time to meet the requirements.