Best UK Slots Bonus Casinos

Who doesn’t like a free spin of the reels? Pretty much every top online casino offers a slots bonus to new players, so whether you’re a fan of video slots or prefer more traditional classic slot games, there’s a freebie for you. With so many offers out there, finding your perfect bonus can be tricky, which is why we’ve picked out the very best slots bonuses the casino world has to offer. Compare the top slots bonus casinos with the help of our carefully selected list and expert casino reviews, then simply sign up to claim your offer.

  1. How to claim your slots bonus

    Our top casino list is here to help you find the best online slots bonus. The biggest bonus isn’t necessarily the best- read up on the all-important terms and conditions in our casino reviews to find out the true worth of each bonus offer.

  2. Sign up

    Once you’ve settled on a slot bonus, follow our link to take you to the casino registration page. You’ll be prompted to enter some personal details to create your account, and you’ll need to upload identity documents to verify your identity before you can activate your bonus or play casino games. Don’t forget to check whether you need to enter a bonus promo code when you’re signing up!

  3. Deposit

    Unless you’ve bagged a no deposit slots bonus, you’ll need to deposit to activate your freebie. Our recommended casinos accept a range of payment methods, including PayPal, so the choice is yours.

  4. Play

    Your slot bonus funds will be added to your account as soon as your deposit is processed, which is usually instantly. All that’s left to do is head to the games library and get spinning.

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  1. 1

    2041 user ratings

    Expert Review

    Deposit £10 Get £60 + 100 Spins

    T&Cs Apply
    New Customer Offer

    UK &; IRL only. Deposits made with e-wallets are not valid for this promo. Bonus wagering x35 on eligible games. Winnings from bonus capped at £500. Spins available after bonus is redeemed/lost. 10 per day with no wagering. Full T&Cs apply

    pay £10, play with £60.

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    Deposit £10 Get £60 + 100 Spins

    T&Cs Apply
    New Customer Offer

    UK &; IRL only. Deposits made with e-wallets are not valid for this promo. Bonus wagering x35 on eligible games. Winnings from bonus capped at £500. Spins available after bonus is redeemed/lost. 10 per day with no wagering. Full T&Cs apply

    pay £10, play with £60.

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

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    Award Winning Casino

    • Full PayPal Support
    • Popular Live Casino
    • Superb Mobile App
  2. 2

    1908 user ratings

    Expert Review

    200% Up To

    £500

    Welcome Bonus

    T&Cs Apply
    New Customer Offer

    £20 min deposit, excluding deposits by Skrill or NETELLER • 200% up to £300 Bonus • Bonus wins are capped at £500 • To withdraw bonus & related wins, wager 30 x (bonus amount) within 90 days.

    Pay £100, play with £200

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    200% Up To

    £500

    Welcome Bonus

    T&Cs Apply
    New Customer Offer

    £20 min deposit, excluding deposits by Skrill or NETELLER • 200% up to £300 Bonus • Bonus wins are capped at £500 • To withdraw bonus & related wins, wager 30 x (bonus amount) within 90 days.

    Pay £100, play with £200

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

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    Highly Trusted

    • Full PayPal Support
    • Exclusive Bonuses
    • 7-Figure Jackpots
  3. 3

    463 user ratings

    Expert Review

    100% Up To

    £300

    Welcome Package

    T&Cs Apply
    New Customer Offer

    Min deposit £10. 50x wager “BONUS + DEPOSIT” amount before withdrawal. Bonus must be accepted within 72 hours, valid for 30 days & wagering must be completed within this time. Bonus amount can't be withdrawn. Not all games contribute equally to wagering requirements. Max bet restrictions apply. Deposits with Skrill & Neteller are not valid for this promotion.

    pay £100, play with £200

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    100% Up To

    £300

    Welcome Package

    T&Cs Apply
    New Customer Offer

    Min deposit £10. 50x wager “BONUS + DEPOSIT” amount before withdrawal. Bonus must be accepted within 72 hours, valid for 30 days & wagering must be completed within this time. Bonus amount can't be withdrawn. Not all games contribute equally to wagering requirements. Max bet restrictions apply. Deposits with Skrill & Neteller are not valid for this promotion.

    pay £100, play with £200

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    Modern Design & Graphics

    • Big UK Brand Name
    • Great Live Casino Offering
    • Huge Jackpot Slots
  4. 4

    218 user ratings

    Expert Review

    Enjoy Up To

    £200

    + 100 Spins

    T&Cs Apply

    New players only. 18+. Min deposit £10. Wagering requirement apply 35x. Offer valid for 72hr. 100 spins includes 3 deposit.

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    Enjoy Up To

    £200

    + 100 Spins

    T&Cs Apply

    New players only. 18+. Min deposit £10. Wagering requirement apply 35x. Offer valid for 72hr. 100 spins includes 3 deposit.

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

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    Brand New Casino

    • Perfect for VIP Players
    • Excellent Live Casino
    • Great Game Selection
  5. Casino Planet
    5

    2421 user ratings

    100% up to £300 + 200 Spins

    T&Cs Apply
    New Customer Offer

    £10 min deposit. £5 max bet using bonus. 40x wagering applies. Bonus valid for 14 days. 20 Spins on preselected games will be credited instantly + then 20 per day for 9 days. Free Spins valid for 72 hours from credit. Max Free Spins winnings £100. Skrill + Neteller excluded. Always refer to Bonus Terms - www.begambleaware.org
    Click here for full T&Cs

    Deposit £100 play with £200

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    100% up to £300 + 200 Spins

    T&Cs Apply
    New Customer Offer

    £10 min deposit. £5 max bet using bonus. 40x wagering applies. Bonus valid for 14 days. 20 Spins on preselected games will be credited instantly + then 20 per day for 9 days. Free Spins valid for 72 hours from credit. Max Free Spins winnings £100. Skrill + Neteller excluded. Always refer to Bonus Terms - www.begambleaware.org
    Click here for full T&Cs

    Deposit £100 play with £200

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

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    Brand New Casino

    • Brand New Casino
    • Modern Design
    • Great for New Games
  6. 6

    1632 user ratings

    Expert Review

    100% Up To

    £100

    +10% Cashback

    T&Cs Apply
    New Customer Offer

    Maximum bonus is 100% up to £100. No max cash out. Wagering is 35x bonus. Maximum bet while playing with a bonus is £5. Cashback is cash with no restrictions. Bonus excluded for players that deposit with Skrill or Neteller. Click here for full T&Cs

    pay £100, play with £200

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    Claim Bonus

    Click here for full terms and conditions

    100% Up To

    £100

    +10% Cashback

    T&Cs Apply
    New Customer Offer

    Maximum bonus is 100% up to £100. No max cash out. Wagering is 35x bonus. Maximum bet while playing with a bonus is £5. Cashback is cash with no restrictions. Bonus excluded for players that deposit with Skrill or Neteller. Click here for full T&Cs

    pay £100, play with £200

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    Top Games Selection

    • Excellent Live Casino
    • Perfect For VIP Players
    • Live Chat Support
  7. 7

    1076 user ratings

    Expert Review

    100% Up To

    £100

    Welcome Bonus

    T&Cs Apply
    New Customer Offer

    100% welcome bonus worth up to £100 is only valid for new players who have registered but have not made any deposit. The value of the bonus has a play through of 35 which must be met to validate any winnings deriving from it. The offer is valid for all payment methods available in Novibet, apart from Neteller and Skrill.

    pay £100, play with £200

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    100% Up To

    £100

    Welcome Bonus

    T&Cs Apply
    New Customer Offer

    100% welcome bonus worth up to £100 is only valid for new players who have registered but have not made any deposit. The value of the bonus has a play through of 35 which must be met to validate any winnings deriving from it. The offer is valid for all payment methods available in Novibet, apart from Neteller and Skrill.

    pay £100, play with £200

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

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    Editor's Choice

    • Perfect For VIP Players
    • Full PayPal Support
    • Over 1,000 Games
  8. 8

    1562 user ratings

    Expert Review

    £20 Welcome Bonus

    T&Cs Apply
    New Customer Offer

    The £20 Welcome Bonus is for open to all new customers to Grosvenor Casinos that make an eligible first deposit.
    The minimum eligible deposit is £20.
    Only one bonus per player, household and IP address is permitted.
    The bonus should be awarded instantly but no later than 72 hours after a successful deposit of £20 or more.
    To withdraw a bonus and associated winnings, players must wager a total of five (5) times the bonus amount, e.g. £20 x = £100
    Attempting to withdraw prior to meeting the wagering requirements will result in the bonus balance being forfeited.
    Customers have 30 days to meet the wagering requirements from the date of first deposit.
    The bonus is only available to players that have registered from one of our permitted and licensed jurisdictions.
    In any dispute, the Grosvenor Casinos management decision will be final.
    Employees of Rank Group or anyone associated with the offer are not permitted to participate.
    Grosvenor Casinos reserves the right to withdraw or amend this offer at any time without prior notice.
    This bonus cannot be used in conjunction with any other offer.
    We may at any point before, during or after the promotion, ask for valid proofs of identity, such as a passport to verify your identity, age and residency. If you are unable to produce such documents you will automatically be excluded from the promotion and will forfeit any prizes that have already been allocated or awarded to you, without compensation.
    Any abuse of this offer may lead to all bonus funds being withdrawn.
    Customers, whose accounts have been closed, suspended or are found to have multiple accounts when a promotion has ended will have their entry forfeited.
    We do not guarantee continuous uninterrupted access to the website. Numerous factors outside the control of the promoter may interfere with the operation of the Website. No responsibility will be accepted for any difficulties, participation or claims that are corrupted or not delivered.
    General Terms and Conditions apply.

    Deposit £20 and get £20 welcome bonus

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    £20 Welcome Bonus

    T&Cs Apply
    New Customer Offer

    The £20 Welcome Bonus is for open to all new customers to Grosvenor Casinos that make an eligible first deposit.
    The minimum eligible deposit is £20.
    Only one bonus per player, household and IP address is permitted.
    The bonus should be awarded instantly but no later than 72 hours after a successful deposit of £20 or more.
    To withdraw a bonus and associated winnings, players must wager a total of five (5) times the bonus amount, e.g. £20 x = £100
    Attempting to withdraw prior to meeting the wagering requirements will result in the bonus balance being forfeited.
    Customers have 30 days to meet the wagering requirements from the date of first deposit.
    The bonus is only available to players that have registered from one of our permitted and licensed jurisdictions.
    In any dispute, the Grosvenor Casinos management decision will be final.
    Employees of Rank Group or anyone associated with the offer are not permitted to participate.
    Grosvenor Casinos reserves the right to withdraw or amend this offer at any time without prior notice.
    This bonus cannot be used in conjunction with any other offer.
    We may at any point before, during or after the promotion, ask for valid proofs of identity, such as a passport to verify your identity, age and residency. If you are unable to produce such documents you will automatically be excluded from the promotion and will forfeit any prizes that have already been allocated or awarded to you, without compensation.
    Any abuse of this offer may lead to all bonus funds being withdrawn.
    Customers, whose accounts have been closed, suspended or are found to have multiple accounts when a promotion has ended will have their entry forfeited.
    We do not guarantee continuous uninterrupted access to the website. Numerous factors outside the control of the promoter may interfere with the operation of the Website. No responsibility will be accepted for any difficulties, participation or claims that are corrupted or not delivered.
    General Terms and Conditions apply.

    Deposit £20 and get £20 welcome bonus

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    Highly Trusted

    • Big UK Brand Name
    • New & Classic Games
    • Great Table Game Offering
  9. 9

    1187 user ratings

    Expert Review

    80 Wager Free Spins on 1st Deposit

    T&Cs Apply
    New Customer Offer

    50 Free Spins on first deposit (on Rich Wilde and the Book of Dead). Also, after the first deposit the player can claim an additional 30 Free Spins by visiting the Kicker Section. So the player can receive a total of up to 80 free spins. Please refer to the landing page for all the details.

    Deposit £10 and get 50 Free Spins + 30 Extra Free spins to claim!

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    Click here for full terms and conditions

    80 Wager Free Spins on 1st Deposit

    T&Cs Apply
    New Customer Offer

    50 Free Spins on first deposit (on Rich Wilde and the Book of Dead). Also, after the first deposit the player can claim an additional 30 Free Spins by visiting the Kicker Section. So the player can receive a total of up to 80 free spins. Please refer to the landing page for all the details.

    Deposit £10 and get 50 Free Spins + 30 Extra Free spins to claim!

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    Great on Mobile

    • Super Fast Payouts
    • No Wagering Required
    • Money Back On Every Bet
  10. 10

    1268 user ratings

    Expert Review

    100% Up To

    £100

    + 25 Spins

    T&Cs Apply
    New Customer Offer

    Min. deposit £15 (no Skrill/Neteller); 40x wagering within 15 days to convert to real money; Max winnings = 10x bonus amount; Real money balance wagered first; Free spins valid for 7 days; Free spins max. winnings = £100. Stake contribution towards wagering requirements varies between eligible games.

    pay £100, play with £200

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    100% Up To

    £100

    + 25 Spins

    T&Cs Apply
    New Customer Offer

    Min. deposit £15 (no Skrill/Neteller); 40x wagering within 15 days to convert to real money; Max winnings = 10x bonus amount; Real money balance wagered first; Free spins valid for 7 days; Free spins max. winnings = £100. Stake contribution towards wagering requirements varies between eligible games.

    pay £100, play with £200

    18+ Please Gamble Responsibly. Click 'Claim Bonus' to view full terms and conditions

    Claim Bonus

    Modern Design & Graphics

    • Excellent Live Casino
    • Big Range of Offers
    • Slots + Lots More

How we choose the casinos on our list

Our expert review team is committed to bringing you only the very best slots bonus casinos. To do this, we check out the slots welcome bonus, promotions and VIP rewards on offer at each site. Of course, we also pay close attention to the terms and conditions, such as wagering requirements and game restrictions, to ensure you get a good deal. We don’t only review the bonuses on offer, though. Our expert reviews give you the lowdown on game libraries, software, payment methods and withdrawal times so that you can easily pick out the casino that’s best for you. It goes without saying that we only recommend UK licensed casinos, which means your account is secure and the slots you play are

Types of slots bonuses

There are a number of different slot bonuses on offer at the best UK online casinos. Let’s take a look at the most popular deals.

Free spins

The number one online slots bonus, free spins do exactly as the name suggests – let you play online slots without dipping into your bankroll. Lots of top UK casinos offer 100 free spins, while you can claim as many as 200 free spins at some slot sites. You’ll usually need to make a minimum deposit in order to access your bonus- some casinos award a set number of spins, while others will reward spins depending on the size of your first deposit.

Matched deposit

A matched deposit usually comes with free spins as part of a welcome bonus package, and rewards players with bonus funds worth a percentage of their first deposit, up to a certain amount. For example, a ‘100% deposit match up to £200’ bonus would bag you an extra £200 in bonus funds if you make a £200 deposit. These bonuses can be used on table games like roulette and blackjack, but can also be used on slots.

No deposit

Some casinos go one step further and offer free no deposit slots bonuses which give you bonus funds simply for signing up- no deposit required. Most of these bonuses are no deposit free spins, though a few casino sites offer no deposit bonus funds. These offers are generally more modest—-20 free spins or £5 cash, for example—-but they give you the chance to play real money slots and try out a new casino at no expense.

Promotions

The slots bonuses don’t dry up after you’ve used your slots welcome bonus- there’s a whole range of regular promotions on offer at the top slot sites. Happy hour free spins is a pretty common bonus, where you can bag some weekly free spins during a specified timeframe, while some casinos also offer free spins to promote new slots releases. These are just a couple of the many slots promotions available at online casinos, so don’t forget to weigh up the regular deals when comparing sites to find the best suited to you.

VIP rewards

While free spins promotions are usually open to all players, some slot sites have VIP schemes to reward frequent players with bonuses and perks. These VIP schemes are usually tired, and your tier level depends on how often you play real money casino games. Free spins are just one of many potential VIP bonus rewards, while some casinos also offer other VIP perks such as exclusive access to the latest slots and personal account managers.

Mobile slots bonuses

Want to claim your bonus and play slots while on the move? You can do just that, thanks to mobile slot sites. All of the best online casinos have a mobile optimised website, which means you can sign up and claim your slot bonus via a smartphone or tablet browser. However, we’d recommend checking out casino mobile apps, which can provide super speedy access to your favourite slots, as well as smoother mobile gaming. If you activate push notifications on your casino app, then you’ll never have to worry about missing out on a slots bonus or promotion. Some casinos even offer mobile-exclusive bonuses that can be used on slot games, which is music to the ears of mobile slots players.

Claim bonuses at new slot sites

When searching for your ideal online slots bonus, don’t forget to check out the hottest new slot sites. These new casinos are always competing with the bigger brands to attract players, so it’s not uncommon for them to take it up a notch with their slots bonus. That’s not the only benefit of new slot sites, though- these casinos are always up to date with the latest games and freshest casino technology, which is always good news to casino fans.

Slots bonus terms and conditions

A casino slots bonus can be a handy bankroll boost, but the only way to judge the true value of an offer is by reading the terms and conditions. Here are the key factors to look out for when reading the small print.

Wagering requirements

Unless you bag a no wagering bonus for slots, you’ll have to wager your bonus winnings a set number of times before they can be withdrawn as real money. Wagering requirements can vary massively between sites, ranging from 25 times to over 60 times your bonus fund. So if you win £10 from your free spins with a 30x wagering requirement, you’ll have to bet £300 before you can cash in any returns.

Some casinos state that the wagering requirement also applies to your qualifying deposit, which can significantly increase how much you’ll need to wager before you can withdraw any winnings.

Wagering contribution

Luckily for slots players, 100% of wagers placed on most slots contribute to the completion of the wagering requirement. However, if you want to play table games like roulette or blackjack to complete the wagering, you should check the terms and conditions. The contribution percentage of these games can be as low as 10%  at some sites, meaning only a small portion of your bets contributes. Some casinos even exclude these games from wagering completion altogether, so pay close attention to the small print.

Game restrictions

While some of the best bonus slot offers give you access to most titles in the games catalogue, you may find certain deals are restricted to a select number of games. Some offers, such as Starburst free spins, can only be used on one title, and some slot sites use free spins to promote brand new games. Keep in mind that most casinos exclude certain progressive jackpot slots from slot bonuses and promotions.

Maximum winning caps

You’ll usually be able to win real money from your slots bonus, but the amount of money up for grabs depends on the casino. Some slot bonuses have relatively small win limits, such as £5, while others are much more generous. Make sure you check the win limits beforehand, as they have a big influence on how valuable a casino’s slots bonus really is.

Time limits

Just like other casino bonuses, you’ll have a limited amount of time to use your slots bonus. After this time your bonus will expire and the bonus funds or free spins will become void. The time limits can range from a day to a month, depending on the casino.

Payment method restrictions

Not all deposits are always eligible for bonuses! It’s fairly common for casinos to exclude Neteller and Skrill deposits from bonuses and promotions. A few casinos may also exclude other payment methods like PayPal and pay by phone bill casino deposits, so check this out before signing up to a bonus.

Claim your slots bonus today

Ready to spin the wheels for free? Whether you’re on the hunt for a no deposit slots welcome bonus or are searching for the best VIP schemes, our list of the best slots bonus casinos has got you covered. Compare bonuses with the help of our carefully crafted list, and check out our expert reviews to learn more about each casino site. Compare, sign up and claim your online slots bonus today!

Frequently asked questions

  • Can I make a withdrawal before completing the wagering requirements?

    Yes. You’re able to withdraw from your real money balance, but this will almost always mean that your bonus becomes void and any bonus winnings will be removed from your account.

  • Will I get all my free spins at once?

    For some bonuses, yes. However, while some casinos release all your spins at once, others release a set number each day. For example, a casino may offer 100 free spins and reward you with 20 spins daily for five days.

  • Do I get to keep the bonus funds as well as the winnings?

    This varies between online casinos. While some state that you can withdraw the original slots bonus amount after satisfying the terms and conditions, others only allow you to keep what you win.

  • Can I claim multiple slot bonuses at once?

    Not usually. You’ll find that most bonus terms and conditions state that slots bonuses can’t be used in conjunction with other offers, which means you’ll have to wait until you’ve used your bonus before claiming another promotional reward.

  • Are 100 free spins better than 20 free spins?

    This depends on what you want to get out of your online slots bonus, as well as the terms and conditions. For example, if you’re looking to increase your chances of turning a bonus into withdrawable cash, then 20 free spins bonus with low wagering requirements of 25x may be preferable to 100 free spins with 60x wagering.