Best payout online casinos in the UK

Getting the best value for money is vital for players signing up for and using online casino sites.

High payout rates (known as RTP, or return to player) detail the percentage of funds that will be returned to customers playing casino games online.

As part of The Independent’s drive to deliver impartial and reliable insights, we aim to use our expertise, in-depth research, testing and third-party data to evaluate the UK’s best payout casinos.

We want to provide readers with an accurate and up-to-date guide on different categories of casino, so we’ve provided a rundown of the best high payout online casinos in the UK across various game types, helping players to make an informed decision before choosing their preferred casino.

Before we look at the highest payout casinos, it’s important to know what RTP is. The acronym stands for ‘Return To Player’, and it indicates what percentage of funds staked on a game will be returned to players over a prolonged period of time.

It is important that punters are not misled by the RTP on a game. For example, if a slot game has an RTP of 97 per cent , it doesn’t mean you’ll get £97 back if you gamble £100 - far from it. Instead, your losses contribute to the overall RTP of the game, and someone will be paid out sooner or later.

For more information on the concept, read our guide to RTP.

An online slot game with a 97 per cent RTP means the game will return £97 for every £100 wagered by all players, but the percentage is calculated over millions of spins. Therefore, RTP cannot be used to estimate your own winnings when setting out a budget.

Casino sites are required to stick to the RTPs set by online game providers, and governing bodies such as the UK Gambling Commission (UKGC) and eCommerce Online Gaming Regulation and Assurance (eCOGRA) ensure regulated operators adhere to the percentages.

Bet365 Casino came out on top for the highest paying online casino for slots.

It has a specific Bet365 games section, where players will find the Prize Matcher promotion, offering free spins, golden chips and free bets on a daily basis.

Bet365 have all the best online slots, including Megaways and jackpot slots, and though these types of games don’t have as high an RTP as some, they offer a chance to win bigger rewards.

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Bet365 also boasts a competitive casino sign up bonus compared to their rivals in the industry. New users can claim up to 100 free spins on slot games after depositing and wagering £10 online.

Though there is little negative to say about such an established brand, it is worth noting that Bet365 operate a strict verification process, and occasionally their site can be a little confusing due to the range of options they offer.

For reference, below are the best payout slots on Bet365 Casino:

10Bet stands out as the highest paying online casino for live dealer games.

There are over 35 live dealer games available at 10Bet casino, including Evolution Gaming, which offers new customers a 50 per cent bonus on initial deposits, worth a maximum of £250.

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10Bet has live casino-specific promotions and offers, including the chance to get a cash reward worth up to £50 when you spend £200 or more on live casino game shows.

In addition, 10Bet clearly advertises the RTP of a specific live casino or slot game, particularly on their offers page, in contrast to some online casinos, who make it more difficult to find out that information. 

There are a couple of negatives to 10Bet, though they may not trouble some users – customer support is not available 24/7, and a lot of games don’t have a particularly high RTP.

On average, blackjack has the highest RTP of any traditional casino game, reaching over 99 per cent in most cases, although it does require skill and strategy to win.

When researching the best blackjack sites, we found Grosvenor Casino to be the highest paying blackjack casino.

Grosvenor has a number of different types of blackjack, both in their online casino and live casino.

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In the online casino, you can play traditional blackjack, blackjack surrender and multi-hand blackjack. Blackjack in the live casino can vary in RTP, but not massively, ranging from between 99.28 per cent and 99.50 per cent.

The blackjack game with the highest RTP on Grosvenor is European blackjack at 99.60 per cent.

Among Grosvenor’s many promotions, bettors will find a blackjack-specific offer. Just stake £5 or more on selected blackjack games, and if a lucky card appears, users could win a cash prize or a free bet for the sportsbook, both worth up to £25.

In terms of negatives, Grosvenor can take a while to process withdrawals and they do carry fewer payment methods than some other casino sites.

Betway is among the best high RTP roulette casinos, and it offers all types of roulette, with 70 different versions of the game to be found across their site. Roulette is their most popular dealer game on their casino product.

Roulette sites often feature games with lower RTPs compared to some casino games like blackjack, primarily due to the house edge inherent in roulette’s design, especially in variations like American roulette.

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Most roulette games have an RTP ranging from 94.74 per cent to 97.30 per cent, although you can play French roulette on Betway which has an RTP of 98.65 per cent when played using La Partage rules.

The Betway sign up offer rewards new users with 100 free spins. Once you’ve completed the welcome bonus, fans of roulette can enjoy the Lucky Numbers promotion to win up to £50 in bonus funds if a bettor’s chosen lucky number comes up.

On the negative side, this bonus only really caters to slot players, while withdrawal can take longer than on some competitor sites.

Game volatility differs from RTP as it refers to the level of risk involved in terms of the size and frequency of payouts.

The volatility, or variance as it is sometimes referred to, allows different types of players to choose games that suit their budget and intentions.

A low volatility game should provide frequent wins of a small nature – these are aimed at players who enjoy steady gameplay with a small amount of risk.

High volatility games, on the other hand, are aimed at players who want a high payout, though they must accept that returns are few and far between.

The latter is a more risky approach but it appeals to some casino players as payouts on high volatility games are higher than low volatility online slots.

Whether we’re testing a new UK casino or an established brand, we use a set of stringent criteria to rank and review the best casinos for payouts. These are discussed below.

All of the online casinos that we recommend must be licensed and regulated by the UK Gambling Commission. This ensures that they operate legally and fairly – this licence is non-negotiable.

In addition to licensing, the best payout casinos will use up-to-date security measures such as SSL encryption and two-factor authentication. These help to keep player data and details secure.

The best payout casinos will be transparent with their RTP percentages, while offering several games with a range of RTP rates.

The best payout online casinos will have a great selection of games in multiple forms, from new slots to table games and live dealer offerings. We have checked the number and variety of titles, as well as checking how often they update their library with new and exclusive titles.

Trusted online casinos offer a range of secure payment methods for deposits and withdrawals, including debit cards, bank transfer, PayPal casino and e-wallets. A pay by mobile casino can also be considered as they allow users to transfer credit from their phone to their casino account. Generally, a fast withdrawal casino provides modern methods of banking - the more options, the better.

The highest paying online casinos should offer the best casino sign up offers, as well as plenty of promotions for existing customers, from free spins and betting offers to jackpots.

One of the most important things to consider when recommending an online casino is the overall user experience. Welcome offers, existing promotions and a variety of games all contribute to this, as does the functionality of the desktop sites and casino apps.

The casinos that we recommend will offer a range of customer service tools including live chat, email and phone options. Ideally, these will be accessible 24/7 too.

Licensed and trusted online casinos will be fully committed to safer gambling, and will offer a host of responsible gambling tools, including loss limits, deposit limits and time-outs. We will not recommend casinos that don’t do their best to promote healthy, socially responsible gambling.

Responsible gambling is extremely important when playing on a high paying online casino. Never be tempted to chase any losses, and the same applies if you’re playing on betting apps, bingo sites, poker sites or any other type of gambling medium.

It’s particularly important not to get carried away by free bet offers or casino offers, both of which are available in abundance on gambling sites, but must be approached with caution.

Use responsible gambling tools to ensure that your gambling remains a form of entertainment. Tools should be available to all customers who require assistance. These include deposit limits, loss limits, self-exclusion and time outs.

Should you wish to seek help for gambling-related issues, there are several charities and healthcare providers who offer support and information:

One of the most important things to consider when choosing an online casino is the game types you prefer. We’ve broken down the key criteria for our recommended highest paying online casinos.

All the best gambling sites mentioned on this page are fully licensed and regulated by the UK Gambling Commission, ensuring a safe and fair gaming experience - all you need to do is evaluate our criteria for yourself.

Be sure to pick the game and casino site that matches your preference and enjoy your experience of gambling online.

We may earn commission from some of the links in this article, but we never allow this to influence our content. This revenue helps to fund journalism across The Independent.

What are the best payout online casinos?

Casinos differ in offering the best payouts based on sections of their site. For example, Bet365 is the best payout online casino for slots, while Grosvenor is the standout for blackjack, according to our research.

What does RTP mean?

RTP stands for ‘Return To Player’ and signifies the rate of which funds are returned to customers that play casino games online. For a full breakdown of the meaning, read our RTP explainer.

Do the best payout online casinos provide promotions?

Yes. The best payout online casinos offer a variety of promotions for wagering online, including welcome casino bonuses, cashback, reload deposits and free spins among others.

Are these highest payout online casinos safe?

Yes. We only recommend casino sites that are licensed by the UKGC, ensuring that customers’ data is safe and secure when wagering online. You may wish to try out the best low deposit casinos to test the waters with minimal spend before settling on your favoured high payout casino.