Best Payout Online Slots UK - 2019

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

Casino Rating Bonus Site

9.3/10

£499 Bonus
& 100 Free Spins

Terms Apply

9/10

£222 Bonus
& 22 Free Spins

Terms Apply

9.6/10

£100 Bonus
100 Free Spins

Terms Apply

9.6/10

£50 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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5/10

£300 Bonus
+ 20 Free Spins!

Terms Apply

18+. New customers only. 30x wagering requirements apply for bonuses and winnings. - Full Terms Apply

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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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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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9/10

£200 Bonus

Terms Apply

1. Currencies: 888casino offers play in one of the three following currencies in accordance with the member's personal preference: US Dollars, GBP, Canadian Dollars or Euros. Whenever a currency is mentioned (in connection with bonuses, deposit eligibility, bets, JP, etc) it will be calculated in US Dollars and converted to other currencies according to suitable methods determined by 888casino.

2. Payments:
- Bonuses (Welcome Bonus and others) and any winnings derived from a bonus may be withdrawn only after an amount totalling no less than 30 (thirty) times the initial bonus amount received has been wagered, unless otherwise stated (40 (forty) times if the bonus amount if received by funds deposited by NETeller, (except for players from Japan where the wagering for the bonus is 20 (twenty) times the bonus for first time deposits made via NETeller). For example, to withdraw each bonus of $10 and any related winnings, a member needs to wager $300 and the entire bonus criteria must be fulfilled.

- Wagering on all games at 888casino contributes towards the wagering requirement but certain games contribute greater amounts than others. The following is a list of contributions towards wagering requirements for each individual game type.

Wagering Contributions:
Video Slots & Slots, Scratch card, Keno, Race, Arcade, Dice and all other games that do not appear in the table: 100%

All versions of Roulette, Pai Gow Poker, Caribbean Poker, Triple Card Poker & Poker table games: 20%
All versions of Blackjack, Live Casino games, Hi-Lo, VideoPoker, Power Video Poker, Baccarat: 10%

Craps: 5%
- Any winnings made under the bonus, may be withdrawn only after the wagering requirement has been fulfilled. If you wish to remove the Welcome Bonus and winnings in order to withdraw your initial deposit please contact our Member Support Department.

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8.8/10

£200 Bonus

Terms Apply

UK & IRL only. Deposits made with e-wallets are not valid for this promo. Bonus wagering x50 on eligible games. Game weighting apply. Min deposit €20. Golden chips available after bonus is redeemed/lost and worth €1 each. Full T&Cs apply. - Full Terms Apply

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9.5/10

£1200 Bonus
+ 100 Free Spins!

Terms Apply

Register at Dunder casino today and receive up to $/€/£ 600 + 200 free spins welcome bonus on your first 4 deposits. Get 200 free spins + 100% match bonus up to €50 on your first deposit. Second deposit 50% up to €100. Third deposit 25% up to €150. Fourth deposit 25% up to €300.

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Recommended Top Payout Online Slots

£50 Bonus + 50 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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£300 Bonus + 20 Free Spins!
  • Numerous and unique slots offered
  • A reported 97.27%-win rate for players
  • Lavish welcome bonus

Terms Apply

18+. New customers only. 30x wagering requirements apply for bonuses and winnings. - Full Terms 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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£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.

Claim Bonus
£200 Bonus
  • 888 Casino Android/ iOS Mobile App
  • High RTP Portfolio
  • VIP Benefits for Loyal Punters

Terms Apply

1. Currencies: 888casino offers play in one of the three following currencies in accordance with the member's personal preference: US Dollars, GBP, Canadian Dollars or Euros. Whenever a currency is mentioned (in connection with bonuses, deposit eligibility, bets, JP, etc) it will be calculated in US Dollars and converted to other currencies according to suitable methods determined by 888casino.

2. Payments:
- Bonuses (Welcome Bonus and others) and any winnings derived from a bonus may be withdrawn only after an amount totalling no less than 30 (thirty) times the initial bonus amount received has been wagered, unless otherwise stated (40 (forty) times if the bonus amount if received by funds deposited by NETeller, (except for players from Japan where the wagering for the bonus is 20 (twenty) times the bonus for first time deposits made via NETeller). For example, to withdraw each bonus of $10 and any related winnings, a member needs to wager $300 and the entire bonus criteria must be fulfilled.

- Wagering on all games at 888casino contributes towards the wagering requirement but certain games contribute greater amounts than others. The following is a list of contributions towards wagering requirements for each individual game type.

Wagering Contributions:
Video Slots & Slots, Scratch card, Keno, Race, Arcade, Dice and all other games that do not appear in the table: 100%

All versions of Roulette, Pai Gow Poker, Caribbean Poker, Triple Card Poker & Poker table games: 20%
All versions of Blackjack, Live Casino games, Hi-Lo, VideoPoker, Power Video Poker, Baccarat: 10%

Craps: 5%
- Any winnings made under the bonus, may be withdrawn only after the wagering requirement has been fulfilled. If you wish to remove the Welcome Bonus and winnings in order to withdraw your initial deposit please contact our Member Support Department.

Claim Bonus
£200 Bonus
  • Huge and reputable brand since 1988
  • Available in PC, mobile, and download
  • Very prompt withdrawal rates

Terms Apply

UK & IRL only. Deposits made with e-wallets are not valid for this promo. Bonus wagering x50 on eligible games. Game weighting apply. Min deposit €20. Golden chips available after bonus is redeemed/lost and worth €1 each. Full T&Cs apply. - Full Terms Apply

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£1200 Bonus + 100 Free Spins!
  • Massive selection of slots from leading developers
  • Fresh and modern site design
  • Awesome 3-tier welcome deposit

Terms Apply

Register at Dunder casino today and receive up to $/€/£ 600 + 200 free spins welcome bonus on your first 4 deposits. Get 200 free spins + 100% match bonus up to €50 on your first deposit. Second deposit 50% up to €100. Third deposit 25% up to €150. Fourth deposit 25% up to €300.

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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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£100 Bonus + 200 Free Spins!
  • Huge selection of slots games from different developers
  • Modern and stylish design
  • Privacy protection via SSL encryption

Terms Apply

New players only. 18+. 35x wagering applies to Bonus Cash and Free Spins. Deposit of £20+ unlocks a 100% Match Bonus up to £100 in Bonus Cash, subsequent wager of £20+ on slots unlocks 100 Free Spins and 20 Free Spins per day over 5 days on selected games. BeGambleAware.org - Full Terms Apply

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£1200 Bonus + 100 Free Spins!
  • Remarkable customer service with 24/7 live chat
  • SSL encryption
  • Generous welcome bonus of up to £1200 + 100 free spins

Terms Apply

The welcome offer is split into 3 deposit bonuses. Deposit 1, 100% up to £500 + 50 spins. Deposit 2, 50% up to £200. Deposit 3, 125% up to £500 + 50 spins. Enjoy up to £1200 welcome package plus 100 spins

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£200 Bonus + 20 Free Spins!
  • Great selection of slots
  • Generous welcome bonus for new players
  • SSL encrypted

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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£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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£200 Bonus
  • Well-rounded collection of slots from various developers
  • 24/7 toll-free phone support available for UK players
  • Secured with SSL encryption technology

Terms Apply

The Welcome Bonus consists of a FreePlay bonus of 100% of your first deposit, up to $/€/£200 or 2000 SEK (depending on your chosen account currency). For example, if you deposit $200 as your first deposit, you will receive a bonus of $200 in FreePlay In order to receive the Welcome Bonus, you must make a single first time deposit with the promotion code: WELCOME777.

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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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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!

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!