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Best UK Slots Bonus Casinos

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

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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Best UK Slots Bonus Casinos - September 2021

icon UK Licensed
icon Expert Reviews
icon Mobile Friendly
icon Fast Payouts

TopRatedCasinos.co.uk is dedicated to helping customers find the best place to play online. Your safety and well-being is a priority, which is why all of our expert casino reviews are 100% honest and unbiased, and we highlight the key terms and conditions of every casino bonus we advertise. Whilst we accept commission from the casinos on our list of recommendations, and this may affect where they’re positioned on our lists, we only recommend casinos that we truly believe are safe and fair. Of course, we can’t rate and review every casino site, but we do make sure that only the best UK-licensed casinos make it onto our lists.

TopRatedCasinos.co.uk is dedicated to helping customers find the best place to play online. Your safety and well-being is a priority, which is why all of our expert casino reviews are 100% honest and unbiased, and we highlight the key terms and conditions of every casino bonus we advertise. Whilst we accept commission from the casinos on our list of recommendations, and this may affect where they’re positioned on our lists, we only recommend casinos that we truly believe are safe and fair. Of course, we can’t rate and review every casino site, but we do make sure that only the best UK-licensed casinos make it onto our lists.

Rank Online Casino Casino Rating Sign-up Bonus Score Key Features Sign Up Terms & Conditions
1
1076 User Ratings
Expert Review

100% Up To £150 + 15 Free Spins

9.9
  • Perfect For VIP Players
  • Full PayPal Support
  • Over 1,000 Games
100% welcome bonus worth up to £150 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. 18+ Please Gamble Responsibly. Click 'Claim Bonus' to view the full terms and conditions.
2
814 User Ratings
Expert Review

100% Up To £50 + 50 Bonus Spins

9.7
  • Brand New Casino
  • Modern Design
  • 7 Figure Jackpots
New players only. 100% bonus on first deposit up to £50 & 50 Bonus Spins (30 spins on day 1, 10 on day 2, 10 on day 3) for Rich Wilde and the Book of Dead slot only. Min first deposit of £20. Max bonus £50. Max bonus bet £5. Max bonus cash-out £250. 40x wagering requirements. Bonus expiry 30 days. Bonus spins expiry 2 days. Game restrictions apply. 18+ Please Gamble Responsibly. Click 'Claim Bonus' to view the full terms and conditions.
3
1430 User Ratings
Expert Review

100% up to £100 + 100 Spins

9.6
  • £10K Prize Draw
  • 400+ Casino Games
  • Live Dealer Tables
New players only. Min deposit £20, Max bonus £100. 50x WR, 100 Free Spins - 10 batches of 10 Free Spins Daily - No WR - Max Win £10 per batch. T&Cs Apply 18+ 18+ Please Gamble Responsibly. Click 'Claim Bonus' to view the full terms and conditions.
4
361 User Ratings

100% up to £250 + 100 Spins

9.6
  • Great Slot Selection
  • Full PayPal Support
  • Generous Welcome Bonus
Minimum deposit of £20 is required. Minimum withdrawal from cash funds is £10. Cash deposits can be withdrawn at any time, barring reasonable grounds to suspect promotional abuse or irregular play. The 100 Yoo Spins will be credited to your player account in increments. According to wagering requirements bonus funds must be turned into cash funds, equal to 35 times the initial value of bonus fund + the total amount of your cash deposit. 18+ Please Gamble Responsibly. Click 'Claim Bonus' to view the full terms and conditions.
5
945 User Ratings
Expert Review

Up to £200 + 100 Bonus Spins

9.5
  • Exclusive VIP Benefits
  • Tons of Slot Games
  • Private VIP Tournaments
First Deposit: 100% up to £50 + 20 Spins on Starburst *Min. Deposit £10 Second Deposit: 50% up to £75 *Min. Deposit £20 Third Deposit: 50% up to £75 *Min. Deposit £20 After first deposit made, customers will get + 20 Spin for the next 4 days 18+ Please Gamble Responsibly. Click 'Claim Bonus' to view the full terms and conditions.
6
1329 User Ratings
Expert Review

100% up to £300 + 50 Spins

9.4
  • Weekly Promotions
  • Table Games + Slots
  • Accepts PayPal
1st dep. of £20-£500, max bonus £500 on selected slots; 40x wagering on the sum of deposit & bonus applies. Max convertible 5x bonus amount received. T&Cs Apply 18+ 18+ Please Gamble Responsibly. Click 'Claim Bonus' to view the full terms and conditions.
7
1268 User Ratings
Expert Review

50% up to £100 + 25 Free Spins

9.3
  • Excellent Live Casino
  • Big Range of Offers
  • Slots + Lots More
18+. New Customers only. Min. deposit £15 (no Skrill/Neteller). Wager bonus 40x within 15 days. Max winnings = 10x bonus. Free spins validity: 7 days. Free spins max. winnings = £100. Stake contribution as per eligible games. See full terms. Terms apply. 18+ Please Gamble Responsibly. Click 'Claim Bonus' to view the full terms and conditions.
8
323 User Ratings
Expert Review

100% Up To £100 + 300 Free Spins

9.3
  • Thousands Of Games To Play
  • Rapid Deposits & Withdrawals
  • Excellent Live Casino
18+ Full T&C's Apply. New players Only. £10 min deposit. £5 max bet using bonus. 40x wagering applies. Bonus valid for 14 days. 30 Spins will be credited instantly upon qualifying deposit + then 30 per day for 9 days on pre-selected games. Free Spins valid for 72 hours from credit. Max Free Spins winnings £100. Ewallets excluded. - www.begambleaware.org. 18+ Please Gamble Responsibly. Click 'Claim Bonus' to view the full terms and conditions.
9
149 User Ratings

Up To £50 Bonus + 100 Free Spins

9.2
  • Brand New Casino
  • Instant Withdrawals Available
  • Live Chat Support
Terms and Conditions Apply. New Players only. 18+. Min First Deposit £10. Min Second and Third deposit: 20. Wagering requirement apply 35x. Offer valid for 72hr. Spins expire after 24hr. 100 spins includes 3 deposits. 18+ Please Gamble Responsibly. Click 'Claim Bonus' to view the full terms and conditions.
10
712 User Ratings
Expert Review

100% up to £100 + 10% Cashback

9.1
  • State Of The Art Platform
  • Safe, Secure Casino
  • Live Chat Support
New customers only. Min deposit £10. Wagering 40x bonus. Max bet £5 with bonus funds. 100% bonus up to £100. Eligibility is restricted for suspected abuse. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Full T&Cs apply 18+ Please Gamble Responsibly. Click 'Claim Bonus' to view the full terms and conditions.

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!

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