Slots are the most popular games at online and mobile casinos. Did you know that each slot offers a different RTP though - the figure that expresses how much you should win over a prolonged period of time? You want to play the best payout online slots around, and you can learn exactly what these slot machines are when you read through this handy page…

Top 10 Best Payout Online Slots

  • Expert Reviews
  • UK Licensed
  • Fast Payouts
Casino Rating Bonus Play Now
1

JeffBet Casino

9.7/10

9.7/10

20 Free Spins On Rainbow Riches, No Wagering

Terms Apply

20 Free Spins bonus is awarded on the first deposit (after registration as a new player) of minimum £10. Only one bonus per player is available. The winnings generated from the bonus will be credited to the player's real money account up to the maximum conversion Amount of £500. If within 48 hours from crediting the bonus to player's account, player did not use the bonus, the bonus will expire and player shall not be able to receive the expired bonus. Withdrawal request voids any active/pending bonuses. Excluded Skrill deposits. Full Terms apply.

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2

XL Casino

9.4/10

9.4/10

Claim a £50 Bonus
+ 100 Free Spins

Terms Apply

New players only. Valid until further notice. Min dep £20. 100% Games Bonus [GB] max £50+ 100 Free Spins [FS] on Fluffy Favourites (split over 5 days; valid for 3 days respectively;max win cap 0.25p per spin). FS wins granted in GB & valid on selected games only. WR: 35x Games bonus & 35x FS winnings. GB wins cap: £100 + initial bonus. UK: deposit balance can be withdrawn at any time. Country restrictions apply. 18+. Full T&C apply.

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3

MrQ Casino

9.7/10

9.7/10

30 Free Spins

Terms Apply

First deposit only. Min deposit & spend £10. Max 30 spins on Big Bass Bonanza Megaways at 20p per spin. Spins credited upon spend of £10. 18+ Full T&Cs apply.

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4

Mr.Play Casino

9/10

9/10

£200 Bonus
100 free spins

Terms Apply

5

NetBet Casino

9.3/10

9.3/10

£200 Bonus
+ 10 Free Spins!

Terms Apply

New players, £10+ deposit required, no e-wallets/prepaid cards, 30x Playthrough, on Bonus and 50x on Free Spins winnings. T&Cs Apply

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6

All British Casino

9.4/10

9.4/10

100% Bonus up to £100 + 10% Cashback Always

Terms Apply

New customers only, min deposit £20, wagering 35x, max bet £5 with bonus funds. Max bonus is 100% up to £100. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Cashback is cash with no restriction. Full T&C’s apply

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7

Queen Play

9.4/10

9.4/10

£200 Bonus
+ 100 Free Spins

Terms Apply

8

The Sun Vegas Casino

9.4/10

9.4/10

£300 Bonus

Terms Apply

18+. New customers only. Min deposit £10 for 100% deposit match bonus up to £300 (accept bonus within 72 hours, wager bonus 50x within 30 days on selected games). Debit cards only. Offer Ends 31/08/2023. T&Cs apply. begambleaware.org.

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9

Karamba Casino

9.4/10

9.4/10

£50 + 20 Free Spins

Terms Apply

10

Regent Casino

8.8/10

8.8/10

£200

Terms Apply

11

Playzee Casino

9.4/10

9.4/10

£300 Bonus
+ 100 Bonus Spins

Terms Apply

18+. New players only. Min Deposit £20. Max Bonus Bet £5. Winnings from spins capped at £50. 100 Zee Spins valid on Starburst (first 10 credited immediately upon first deposit; rest credited at 07:00 GMT at 10/day). Spins must be used by 23:59 GMT of the day on which they are credited to player account, any unused shall be removed. Bonus funds must be used within 30 days. Bonus funds are separate to Cash funds, and subject to 35x wagering (bonus + cash). Full terms apply. BeGambleAware.org

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12

Yako Casino

9/10

9/10

100% up to £99
& 99 Free Spins

Terms Apply

New customers only, min deposit £20, wagering 40x, max bet £5 with bonus funds. 100% up to £99 bonus + 99 free spins on 1st deposit. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Full T&Cs apply

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13

Play UK Casino

9.6/10

9.6/10

£850 Bonus
+ 25 Free Spins!

Terms Apply

New Customers only, First 3 deposits only, Min deposit £10. Max bonus £500 + 50 Spins on Starburst. Selected Slots Only, 4x conversion 30x wagering, T's & C's apply.

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14

Moon Games Casino

9.4/10

9.4/10

Spin the wheel up to 555 Spins on Fluffy Favourites

Terms Apply

New players only. 18+. Valid until further notice. Min dep £10. 1 wheel spin. Prizes and odds vary & include free spins [FS], Games bonuses [GB] and Coins. FS wins granted in GB over 4 days & valid for 3 days. GB valid on selected games only. WR: 35x Game bonus. GB wins cap: £100 + initial bonus. UK: deposit balance can be withdrawn at any time. Country restrictions apply. 18+. Full T&C apply.

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15

Cheeky Riches

9.4/10

9.4/10

£100 Bonus
+ 25 Free Spins

Terms Apply

16

Fun Casino

9.1/10

9.1/10

100% up to £123 + 10% Cashback

Terms Apply

New players only, Maximum bonus is £123, Max bet with bonus is £5, No max cash out, Wagering is 50x - Skrill & Neteller excluded, Eligibility is restricted for suspected abuse, Cashback is cash, so no wagering, Cashback applies to deposit where no bonus is included. Full T&C’s apply

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17

Wink Slots

9.1/10

9.1/10

£400 Bonus
+ 50 Free Spins!

Terms Apply

Valid until 31.12.2018. New players only. 1st deposit min £20 with code, gets 100% Bonus (max £400) + 50 FS on Kingdom of Cash. FS deposit wins are set at min £1 -max £13. Bonus wins are capped at £400, exc. jp win. To withdraw games bonus & related wins, wager 30x the bonus funds. Wagering reqs vary by game. Withdrawal restrictions & full T&C apply.

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18

Fruity King Casino

8.6/10

8.6/10

£200 Bonus
+ Free Spins!

Terms Apply

Opt-in Required. Wagering occurs from real balance first. 50x wagering the bonus or any winnings generated from free spins, contribution may vary per game. The wagering requirement is calculated on bonus bets only. Bonus is valid for 30 Days/ free spins valid for 7 days from issue. Max conversion: 5 times the bonus amount or from free spins: $/£/€ 20 or 200 kr. Full Terms apply.

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19

William Hill Casino

8.6/10

8.6/10

£300 Bonus
+ 5 Daily Free Spins!

Terms Apply

*Opt in required. Available 1x per customer. First deposit only. Minimum £10 deposit. Maximum £300 bonus. 40x wagering. Bonus expires 7 days from issue. New customers to casino page only. Player, currency, country, game restrictions & terms apply.

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20

Plush Casino

5/10

5/10

£500 Bonus
+ 50 Free Spins!

Terms Apply

New Customers only, First 3 deposits only, Min deposit £10, Max bonus £500 + 50 Spins on Starburst, Selected Slots only, 4x conversion, 30x wagering, T's&C's apply.

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21

Conquer Casino

5/10

5/10

£200 Bonus
+ 100 Free Spins!

Terms Apply

Opt-in Required. New Players Only. Wagering occurs from real balance first. 50x wagering the bonus or any winnings generated from free spins. Contribution may vary per game. The wagering requirement is calculated on bonus bets only. Bonus is valid for 30 days / Free spins valid for 7 days from issue. Max conversion: 5 times the bonus amount or from free spins: $/£/€ 20 or 200 kr. Full Terms Apply.

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22

Jackpot Fruity

8.5/10

8.5/10

£500 Bonus
+ 25 Free Spins

Terms Apply

23

Monster Casino

8.7/10

8.7/10

£500 Bonus
+ 50 Free Spins

Terms Apply

24

The Gold Lounge

9.4/10

9.4/10

£400 Bonus
150 Free Spins

Terms Apply

25

Spinzwin Casino

7.9/10

7.9/10

£1000

Terms Apply

Recommended Top Payout Online Slots

20 Free Spins On Rainbow Riches, No Wagering
  • Welcome bonus of 20 Free Spins on Rainbow Riches (no wagering requirements)
  • Bet £10 and get a £30 Free Bet for sports bettors
  • Fully Licensed and regulated by the UK Gambling Commission

Terms Apply

20 Free Spins bonus is awarded on the first deposit (after registration as a new player) of minimum £10. Only one bonus per player is available. The winnings generated from the bonus will be credited to the player's real money account up to the maximum conversion Amount of £500. If within 48 hours from crediting the bonus to player's account, player did not use the bonus, the bonus will expire and player shall not be able to receive the expired bonus. Withdrawal request voids any active/pending bonuses. Excluded Skrill deposits. Full Terms apply.

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Claim a £50 Bonus + 100 Free Spins
  • Fantastic welcome bonus worth £50 + 100 free spins
  • Licenced and regulated by the Gambling Commission
  • Huge range of online slots from major software providers

Terms Apply

New players only. Valid until further notice. Min dep £20. 100% Games Bonus [GB] max £50+ 100 Free Spins [FS] on Fluffy Favourites (split over 5 days; valid for 3 days respectively;max win cap 0.25p per spin). FS wins granted in GB & valid on selected games only. WR: 35x Games bonus & 35x FS winnings. GB wins cap: £100 + initial bonus. UK: deposit balance can be withdrawn at any time. Country restrictions apply. 18+. Full T&C apply.

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£200 Bonus + 10 Free Spins!
  • Over 500 slots titles.
  • Lavish welcome bonus of £300 plus 20 free Vegas spins.
  • Mobile casino with over 200 slots.

Terms Apply

New players, £10+ deposit required, no e-wallets/prepaid cards, 30x Playthrough, on Bonus and 50x on Free Spins winnings. T&Cs Apply

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100% Bonus up to £100 + 10% Cashback Always
  • Packed to the rafters with crowd-pleasing titles
  • Software developers include Microgaming and NetEnt
  • Super user-friendly website

Terms Apply

New customers only, min deposit £20, wagering 35x, max bet £5 with bonus funds. Max bonus is 100% up to £100. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Cashback is cash with no restriction. Full T&C’s apply

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£300 Bonus
  • Highly trusted brand
  • Massive bonus up to £300
  • Playtech and Microgaming Games

Terms Apply

18+. New customers only. Min deposit £10 for 100% deposit match bonus up to £300 (accept bonus within 72 hours, wager bonus 50x within 30 days on selected games). Debit cards only. Offer Ends 31/08/2023. T&Cs apply. begambleaware.org.

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£300 Bonus + 100 Bonus Spins
  • Use a range of deposit methods
  • Choose from a variety of games
  • Quick deposit and withdrawals

Terms Apply

18+. New players only. Min Deposit £20. Max Bonus Bet £5. Winnings from spins capped at £50. 100 Zee Spins valid on Starburst (first 10 credited immediately upon first deposit; rest credited at 07:00 GMT at 10/day). Spins must be used by 23:59 GMT of the day on which they are credited to player account, any unused shall be removed. Bonus funds must be used within 30 days. Bonus funds are separate to Cash funds, and subject to 35x wagering (bonus + cash). Full terms apply. BeGambleAware.org

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100% up to £99 & 99 Free Spins
  • 100% up to £99 + 99 Free Spins
  • Loads of different games
  • Some huge progressive jackpots

Terms Apply

New customers only, min deposit £20, wagering 40x, max bet £5 with bonus funds. 100% up to £99 bonus + 99 free spins on 1st deposit. No max cash out on deposit offers. Welcome bonus excluded for players depositing with Skrill or Neteller. Full T&Cs apply

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£850 Bonus + 25 Free Spins!
  • Great for Progressive Gambling
  • Mobile Gaming for Android and iOS
  • PayPal Enabled Casino

Terms Apply

New Customers only, First 3 deposits only, Min deposit £10. Max bonus £500 + 50 Spins on Starburst. Selected Slots Only, 4x conversion 30x wagering, T's & C's apply.

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Spin the wheel up to 555 Spins on Fluffy Favourites
  • 24/7 live chat support
  • Added security via SSL encryption
  • Titles from the top software companies

Terms Apply

New players only. 18+. Valid until further notice. Min dep £10. 1 wheel spin. Prizes and odds vary & include free spins [FS], Games bonuses [GB] and Coins. FS wins granted in GB over 4 days & valid for 3 days. GB valid on selected games only. WR: 35x Game bonus. GB wins cap: £100 + initial bonus. UK: deposit balance can be withdrawn at any time. Country restrictions apply. 18+. Full T&C apply.

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100% up to £123 + 10% Cashback
  • 100% up to £123 + 10% Cashback
  • Stunning selection of online slots
  • Huge progressive prizes

Terms Apply

New players only, Maximum bonus is £123, Max bet with bonus is £5, No max cash out, Wagering is 50x - Skrill & Neteller excluded, Eligibility is restricted for suspected abuse, Cashback is cash, so no wagering, Cashback applies to deposit where no bonus is included. Full T&C’s apply

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£400 Bonus + 50 Free Spins!
  • Free phone line available for UK gamers
  • Enticing welcome bonus
  • Massive selection of slots

Terms Apply

Valid until 31.12.2018. New players only. 1st deposit min £20 with code, gets 100% Bonus (max £400) + 50 FS on Kingdom of Cash. FS deposit wins are set at min £1 -max £13. Bonus wins are capped at £400, exc. jp win. To withdraw games bonus & related wins, wager 30x the bonus funds. Wagering reqs vary by game. Withdrawal restrictions & full T&C apply.

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£200 Bonus + Free Spins!
  • Fantastic selection of slot games available for mobile and desktop platforms
  • 24/7 customer support convenience
  • Nicely themed

Terms Apply

Opt-in Required. Wagering occurs from real balance first. 50x wagering the bonus or any winnings generated from free spins, contribution may vary per game. The wagering requirement is calculated on bonus bets only. Bonus is valid for 30 Days/ free spins valid for 7 days from issue. Max conversion: 5 times the bonus amount or from free spins: $/£/€ 20 or 200 kr. Full Terms apply.

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£300 Bonus + 5 Daily Free Spins!
  • Highly trusted and experienced UK betting brand
  • Great mobile optimisation
  • Over 200 slots from multiple providers

Terms Apply

*Opt in required. Available 1x per customer. First deposit only. Minimum £10 deposit. Maximum £300 bonus. 40x wagering. Bonus expires 7 days from issue. New customers to casino page only. Player, currency, country, game restrictions & terms apply.

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£500 Bonus + 50 Free Spins!
  • Features an astounding number of slot titles
  • Convenient instant-play format
  • Huge list of first-rate game developers

Terms Apply

New Customers only, First 3 deposits only, Min deposit £10, Max bonus £500 + 50 Spins on Starburst, Selected Slots only, 4x conversion, 30x wagering, T's&C's apply.

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£200 Bonus + 100 Free Spins!
  • A healthy selection of slot titles including several lucrative jackpots
  • Generous welcome bonus
  • Fully licensed in the UK

Terms Apply

Opt-in Required. New Players Only. Wagering occurs from real balance first. 50x wagering the bonus or any winnings generated from free spins. Contribution may vary per game. The wagering requirement is calculated on bonus bets only. Bonus is valid for 30 days / Free spins valid for 7 days from issue. Max conversion: 5 times the bonus amount or from free spins: $/£/€ 20 or 200 kr. Full Terms Apply.

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The Slots with the Best RTPs

The first thing we’re going to do is show you a list of the top 15 highest paying online slots, all of which have RTPs of 98% or more. Play one of these loosest online slots and you’ll be giving yourself a great chance of winning some real money!

  • Mega Joker
  • Cosmic Quest - Mystery Planet
  • Jackpot 6000
  • Chess Mate
  • 1429 Uncharted Seas
  • Cinema Classic
  • Lucky Mermaid
  • Golden Legacy
  • Sports Fishing
  • Taxi Movida
  • Lucky Pets
  • Diamond Diggin
  • Jump
  • Ways of Fortune
  • Ragnarok

Of course, extra slots are being added to casino sites all the time, so check back regularly to make sure our list of the best online slots payout percentage UK players can find hasn’t changed.

How to Find the RTP of a Slot Machine

Finding the RTP of a slot machine is generally pretty easy. This is because every casino has to show the payout percentages to players, and these are usually found on a dedicated page. We’d always recommend looking at this page first before you play a slot machine, just to ensure you’re not playing a game with a ridiculously low RTP.

Some gambling sites hide their information on payouts deep within their site though, making them tough to locate. If you can’t find the information you need at your chosen casino, just Google the game’s payout percentage instead. There are plenty of sites that will have the information you need.

Progressive Slots Explained

Progressive slots generally have the biggest jackpot prizes around. This is because the top prize keeps on building up as more and more people play the game. When a player manages to win this progressive jackpot, it will reset back to its minimum amount, before starting to build up all over again.

Many people are really attracted towards progressive games, thanks to the big prizes. We’ve got news for them though: progressive jackpot slots generally have the lowest RTPs around. While you could win millions, you’ve got a much better chance than other games of not winning anything at all. Whether you still choose to play progressive jackpot slots is completely down to the type of casino player you are.

Playing Real Money Slots on Mobile

If you want to play slots using a mobile, there’s no need to worry. This is because the best payout online slots have the same RTPs, regardless of how you play them. So, whether you gamble using a desktop or a mobile, you’ll have exactly the same chance of winning. Mobile players will also find that the bonus game features found on slots are exactly the same, plus they’ll find that the graphics are still very good. Basically, when you have a few spins using your mobile, you’ll be treated exactly the same as desktop casino players.

It should also be mentioned that mobile slots players can also receive the same bonuses as desktop players, including welcome bonuses. What’s more, it isn’t just slots on offer to mobile players, as they can also play table games, live casino games and more. This will apply to pretty much everyone, regardless of the mobile device they choose to use.

Most Popular Slots Software Producers

There are many online slots software providers out there, however the top three are definitely Microgaming, NetEnt and Playtech. They produce some of the slots with the most recognisable themes, as well as many slots with absolutely gigantic prizes. What’s more, they usually have stunning graphics and the gameplay is incredibly easy.

Unfortunately, the best looking and most popular slots aren’t always the best payout online slots. This is why we’d encourage you to also look at the slots from smaller software providers too. These smaller software providers are often trying to get a foothold in the industry, therefore they deliberately produce some of the best payout online casino games. This allows them to attract new players as quickly as possible.

Play the Best Slots at Online Casinos Today

Now you know about the slots with the best online casino payouts, you’re ready to head to one of our recommend casino sites and start playing. Hopefully you’ll be able to have some luck when you play one of the best payout online slots featured further up this page! Should you be looking for a list of fastest payout online casino sites, be sure to visit our dedicated page.

FAQs

What casino has the best paying slot machines?
We’ve created a list of the casinos with the best paying online slots further up this page. Check it out to see which casino is currently giving you the best chance of winning money when you play.

Can I make money playing online slots?
Yes, you can. Many people have won thousands and thousands of pounds playing online slots after making just a small deposit, however whether you win is completely down to luck.

How can I increase my chances of winning?
You can increase your chances of winning by playing the slots with the highest RTPs. You should also play for free before playing for real money, so you can practice without risking your own cash.

Are online slots rigged?
No, slots are not rigged. All slots at casinos we have recommended have been tested and all use completely honest and fair random number generators to decide the outcome of every spin.

Are slots the best paying online casino games?
No, they aren’t. Video poker is actually the best paying online casino game, and some video poker games can have RTPs of over 100%, which is amazing!

Charles Baxendale

A keen researcher in the development of methods and theories for computer sciences. A lover of algorithms and mathematical computation. Consultant to online slots software companies and a player in my spare time.