Best Casino Bonus Sites UK 2025

Compare the Best Online Casino Bonuses UK

Rank	Casino	Bonus Offer	Minimum Deposit	Maximum Cashout
1	Slotzo Casino	100% Up to £50 + 20 Spins	£10	£100000
2	21LuckyBet Casino	100% Up To £200 + 20 Bonus Spins On Book Of Dead	£10	£100000
3	Duelz Casino	100% Up to £100 + 100 Spins	£10	£100000
4	Slots52 Casino	500 Free Spins on 1st Deposit on Starburst	£10	£100000
5	BlueFox Casino	50 Free Spins On 1st Deposit	£10	£100000
6	MogoBet Casino	100% Up To £200 + 20 Free Spins on Book of Dead	£10	£100000
7	PlayJango Casino	100% up to £25 + 25 Free Spins on Book of Dead	£10	£100000
8	SpinShake Casino	100% Up To £50 + 25 Free Spins	£10	£100000
9	The Online Casino	100% Up to £100 + 20 Spins	£10	£100000
10	Megacasino	100% up to £66 + 33 Free Spins	£10	£100000

How We Test the Best Casino Bonuses

What Is an Online Casino Bonus?

A casino bonus offer is a type of promotion provided by the best casino bonus UK sites to new or existing customers. These bonuses consist of special incentives, with the most popular ones featured on online casinos being free spins, bonus money or cashback rewards. To redeem incentives, new players usually only need to make an account, and often a first payment, to become eligible for the casino bonus. Some casinos may also require new customers to add a banking card to award them a bonus. Regarding bonuses awarded to existing customers, they commonly come in the form of daily free spins or cashback rewards.

Why Do the Best Casino Bonus Sites Offer Casino Promotions?

Online casinos offer new gamblers different types of promotions to attract them to their platform and allow them to get accustomed to a new casino site before they commit to significant real money payments. When it comes to bonuses provided for existing players, online casinos offer them different incentives to motivate them to return to their platform instead of moving on to another new site.

Find the Best New Online Casino Bonuses UK (2025)

It is common for new casino platforms to provide customers with interesting and diverse casino bonuses to motivate them to choose gambling on their sites instead of on the platforms owned by popular brands. By offering new customers top casino bonuses, online casinos allow gamblers to discover a new platform’s features and game catalogues to encourage them to keep gambling on the casino site after the promotion runs out.

How to Calculate the True Value of Your Casino Bonus UK

You need to fully understand the terms and conditions of the bonus you opt-for to calculate its true total bonus value.’ Let’s take Monopoly Casino’s promotion, “GET 30 WAGER-FREE SPINS,” as an example to fully understand how one should calculate the true value of their bonus. For a small deposit of only £10, you will receive 30 free spins on the popular slot title Monopoly Paradise Mansion. Luckily, the bonus spins don’t have any wagering linked to them, so you can keep all your winnings upon playing all the extra spins. The credited spins must be wagered with a 1p value per round, so gamblers can earn a maximum sum of 30p. However, taking into consideration the RTP level of Monopoly Paradise Mansion, which is 96.29%, gamblers may earn 28.8p upon playing their bonus.

Top-Rated Types of Casino Bonuses You Must Try Out

Bet-and-get Offers

A bet-and-get offer requires you to bet a certain amount to win bonus funds or spins. For example, a bet-and-get offer could include 50 free spins when you wager £10. Likewise, you could win £10 when you wager £5. Best Casino Bonuses Deposit and Get

• Monopoly Casino: Deposit £10 Get 30 Wager-Free Spins
• Casushi Casino: 100% up to £50 + 50 Free Spins
• Virgin Games Casino: Deposit £10 Get 125 Free Spins

Casino welcome bonus offers

Welcome offers are bonus packages used to entice new players to register for an online casino account. When you first sign-up, you get new player rewards that extend your bankroll with no additional risk. These offers are exclusive to new players and help to encourage new players to play more. This bonus can only be claimed by new players.

Deposit match bonus

A deposit match bonus increases the value of a deposit. For example, if you deposit £20, you’ll receive an extra £20. Some bonuses also include free spins offers. However, deposit match bonuses often have a limit, and casinos don’t match any deposit size indefinitely. Best Deposit Match Bonuses

• Dr Slot: 300% UP TO £50 + UP TO 100 BONUS SPINS
• Gala Spins: 400% UP TO £20 SLOTS BONUS + 50 FREE SPINS
• Matchup Casino: 200% up to £400

At Dr Slot, you can get a 300% deposit match bonus up to £50 and 100 free spins. Gala Spins offers 400% up to £20 plus 50 bonus spins. Also, Matchup Casino has a match bonus offer of 200% up to £400.

Free spins

Free spins let you play slot machines without cost. You get free rotations on popular gaming titles without taking on any additional risk. You’ll need to meet the wagering requirements to cash out your winnings using free spins. Moreover, some offers include free no-wager spins, so you don’t have to meet the wagering requirements to claim your winnings. Best Casinos with No Wager Free Spins

• Monopoly Casino: Get 30 Wager-free Spins
• Virgin Games Casino: Get 30 Free Spins No Wagering
• MrQ: Get 30 No Wagering Spins

Existing customer offers

If you’ve already claimed a new player bonus or first deposit offer, you can take advantage of an existing customer offer. These packages reward players for their loyalty by giving them perks and extra bankroll. They often come at times of account inactivity to encourage you to come back and play.

No Deposit Sign up Bonuses

A no deposit bonus gives you free spins or gameplay without the need to part with any money. Please note that while you may not need to deposit to claim these rewards, you may need to do so if you want to withdraw your winnings. Also, no deposit bonuses usually have a wagering requirement unless otherwise stated. Best Casinos with No Deposit Bonuses

• Luck.com Casino: 100 No Deposit Spins On Sky Piggies
• MadSlots: 100 No Deposit Spins On Big Bass Splash
• Immortal Wins: 5 Free No Deposit Bonus Spins on Immortal Romance

Cashback Casino Bonus Offers

Cashback bonuses are promotional offers that reward players when they meet certain criteria. They usually grant players a percentage of their deposit amount. You could get a cashback reward for making a deposit, giving you extra bankroll without increasing risk exposure. Best Online Casino Bonuses UK with Cashback

• QuinnBet Casino: 50% Cashback
• All British Casino: 10% Cashback
• No Bonus Casino: 10% Cashback

Loyalty Programmes

Loyalty programs incentivise loyal customers to increase their playtime. Some programmes are tiered, so they increase the more you play. In some instances, players have to meet game time criteria to become eligible.s

How to Choose a Casino Bonus

• Understand the Types of Casino Bonuses: You must familiarise yourself with the bonus options. If you’re new to online gambling, a no deposit or welcome bonus could be a good place to start. If you’re an experienced player, you may want to look at a reload bonus or VIP offer.
• Set Your Budget and Goals: If you set a strategy and budget, you can select a bonus offer that helps you achieve them. For example, you might set yourself a £20 deposit limit and aim to double that while meeting the wagering requirements.
• Check Wagering Requirements: See how often you need to wager your bonus spins to withdraw your winnings. The lower the wagering requirement, the quicker you can cash your bonus funds.
• Review Game Contributions: Some games contribute towards the wagering requirements more than others. For example, you might find that slots account for 80% of the wagering requirement and live dealer games 10%, which means you can meet the wagering requirement faster using slots.
• Read Bonus Terms and Conditions: Be sure to read the terms and conditions of a bonus before using it so you’re familiar with the details regarding eligibility, withdrawals, contributions, limits, and wagering requirements.
• Consider Maximum Cashout Limits: Different online casino bonuses exist in 2025 with varying cashout limits. Remember to find this by reading the terms and conditions to manage your expectations.
• Research the Casino’s Reputation: We only recommend legitimate, safe online casinos. It’s wise to read reviews and research the reputation of any site you’re thinking of using.
• Compare Bonus Offers: It’s always worth comparing rewards packages for a larger bonus amount, as they can be pretty competitive.
• Look for Additional Benefits: Some reward packages include several benefits, so it’s worth comparing the market.
• Check for Bonus Codes: Sometimes, a simple bonus code can increase your bankroll significantly.
• Consult Customer Support: If you have any queries, contact customer support by email or chat.

Best No Deposit Casino Sign-up Bonuses UK

Recommended Casino Bonuses with Bonus Codes

Bonus codes give you access to exclusive promotions unavailable to everyone. They allow you to maximize your bankroll further by entering a combination of numbers and letters that unlock a special promotion. Entering bonus codes is essential for special offers with valuable extra spins, bonus funds, and more. They often work on a specific casino’s sister sites as well, but that depends on each casino and their promotion strategies. For example, regarding the first bonus code featured in our table, new gamblers registering on MrQ casino have to enter the “BASSM30” code when opting for the promotion featured on our page to unlock the casino incentives.

UK Casino Bonus Terms and Conditions

• Minimum Deposit Requirements: This is the smallest amount of money you need to deposit to become eligible for bonuses. In the case of no deposit free spins, you may have to make a minimum deposit to withdraw your winnings.
• Wagering Requirements: The wagering requirement is how many times you need to wager your bonus funds before you can claim them. For example, if a rewards package has a 30x wagering requirement and you get £10, you’ll need to wager £300 before you can withdraw your winnings.
• Our advice: pick the lowest wagering casino bonuses!: We recommend choosing a bonus with a low wagering requirement. The less you have to play to meet these criteria, the faster you can claim your winnings. For example, Sport Bet Casino give you 50 free spins with a 10x wagering requirement on the Starburst game for deposits of £20 or more, which is lower than the average.
• Game Contributions to Wagering Requirements: Different game types vary in their contributions to wagering requirements. For example, a casino may have slot games that count for 80%, while live dealer games count for 80%. In this case, it would be much easier to meet the wagering requirements by playing slots.
• Maximum Bonus Amounts: Bonus maximums can refer to deposit maximums and withdrawals. For example, you might get a deposit match bonus that rewards 200% up to £150. You may also find that you can withdraw up to £20 in bonus winnings at some casinos.
• Spin Winnings and Bonus Money: Spin winnings are prizes you acquire from bonus spins. Bonus money is the bankroll you receive when claiming a rewards package.

It’s essential to familiarise yourself with the terms and conditions before using any rewards packages.

How to Claim a Top Casino Bonus Like a Pro – Essential Tips & Tricks

Below are some of the conditions you may have to meet to claim a rewards package:

• Some offers require players to make a deposit before they can withdraw their winnings. No deposit bonuses don’t require deposits to play. You may find that a deposit is necessary to claim your winnings.
• You may need to verify your bonus via live chat, email, or phone when claiming bonus funds. You may also need to verify your payment method before claiming a bonus.
• Always check the deposit requirement for a bonus. Some offer only reward first deposits. Others may apply exclusively to second or third deposits or require you to apply with each deposit individually.
• Check the payment methods that are eligible for claiming bonus rewards. You may need to use a secondary payment method if your regular method isn’t listed.
• In some cases, you may have to select specific games or providers to use your rewards. Always check the terms and conditions to ensure you meet this requirement.
• It’s always worth checking whether your bonus contributes to loyalty points. If they do, there may also be a delay in them appearing in your dashboard, so look out for any information referring to this.
• Bonuses don’t always have codes. When they do, it usually means they are more exclusive than typical rewards.
• Some promotional offers use a spinning wheel to determine the size and nature of your rewards. This adds an extra element of gambling that can result in smaller or larger rewards.
• Some free spins packages give you all of your free spins at once. Others give you them in batches which prevent you from using them in one go.
• Pay attention to rewards packages with multiple features and how they’re presented. For example, you might get 50 free spins when you deposit £10 with a bonus code and get 100 spins when you deposit £20 with the same code.
• There may be situations where you need to make multiple deposits for different match bonuses. These rewards are sometimes tiered, grouped, or individual.
• If you’re using a mobile device, always check to see if you’re eligible for bonuses. Some offers are not available for mobile players.
• You can’t always access your winnings immediately with rewards packages. For example, you may have to wait 24 hours after you register.

Recommended Games to Play With Top Rated Casino Promotions

Our chief editor, Tudor Turiceanu, recommends these games for their quality, the value of their bonuses, and how easy they make it to increase your earnings. Hence, we recommend Starburst and Fluffy Favourites for new players, since they are among the most-appreciated slots in our selection, so it is highly likely they will appeal to new gamblers. We also recommend Big Bass Bonanza and Book of Dead for players that prefer to play slots over any other casino games, since they are also among the most celebrated slot titles in the community. For fans of live casino games, especially if they are also high rollers, we wholeheartedly recommend Live Blackjack, Live American Roulette and Live European Roulette, since they are among the most appreciated live dealer titles out there. Lastly, we consider that Gonzo’s Quest is an ideal choice for any type of player – both new and advanced, since it is universally appreciated, and has enough special features to motivate all players to keep on gambling.

Best Payment Methods to Claim Casino Bonuses in the UK

We’ve tested over 300 casinos and claimed over 500 bonuses with deposits of £50-£500 to learn which offers are best for different payment methods. Hence, based on the results we gathered, and our own experience with playing some of the best casino bonuses, we have found the banking methods included in our table to be the best for depositing to opt-for promotions and withdrawing earnings resulting from specific bonuses.

How to Play Responsibly with Casino Promotions

• Avoid Chasing Losses: When you lose, it’s sometimes tempting to keep betting to try to regain your funds. However, this can quickly escalate, so it’s best not to chase losses.
• Set Time Limits for Gambling Sessions: It’s easy to get carried away when we’re having fun. It’s advisable to set time limits to manage your gambling sessions to avoid this.
• Don’t Rely Solely on Bonuses: Only using bonuses can affect how you play. If you’re only playing games to meet the bonus criteria, you could violate the terms and conditions.
• Play for Fun, Not Just to Meet Wagering Requirements: You should always play for fun and not just to meet wagering requirements. If it stops being fun, take a break and come back later.
• Take Advantage of Responsible Gambling Features: You can set limits on deposits and session duration to ensure you’re gambling responsibly. Most casinos offer these measures to make sure you’re not overdoing it.

Bonus abuse can occur when players collude, manipulate bets, or create multiple accounts to get around bonus rules. If you attempt to bypass the rules, you may lose your rewards or face account closure. Always adhere to the terms of any bonus to prevent this from happening.

Why Trust Our Casino Bonus Selection

As authors and casino experts, we must test every casino bonus we present to you while following our strict rules and principles from our editorial policy. To achieve the high standards set for us, we spend many hours testing every casino bonus just like an ordinary player would be able to feel the user experience. After that, we dedicate our time to creating the best selection of casino bonuses after comparing all the results we got from our tests.

Our Casino Bonus Selection