Online casinos are a regular part of the gambling landscape in Great Britain. But many people wonder: how much money do these websites actually bring in each day?
Whether you're curious about how the industry works, or you're a beginner exploring what gambling online involves, this guide can help explain it clearly.
You’ll learn how earnings are measured, which games generate the most revenue, and why these figures matter. We’ll also look at how online casinos keep a small edge over time, what this means for you as a player, and how some games may offer slightly better chances than others—though nothing is ever guaranteed.
All information is based on Gambling Industry Statistics published by the UK Gambling Commission (UKGC), which cover activity between April 2023 and March 2024. These reports show how much licensed operators earn, how many accounts are active, and how the market has changed over time. Let’s start by looking at what online casinos earn on an average day in Great Britain.
How Much Do Online Casinos Make In a Day?
To understand how much online casinos make, it helps to know how the industry measures revenue. The main term used is Gross Gambling Yield (GGY). This is the amount of money taken from player stakes, minus the amount paid back in winnings. It reflects the operator’s income before deducting business costs such as staff wages, technology, licensing, and tax.
According to the UKGC, remote gambling (which includes online casino, sports betting, and bingo) generated £6.9 billion in GGY between April 2023 and March 2024. Of that, £4.4 billion came from online casino games. These include everything from slot machines to table games and live dealer options.
Slots generated the highest amount—£3.6 billion. The remaining £800 million came from online sports betting, bingo and other casino games.
If you divide the yearly online casino total (£4.4 billion) by 365 days, the daily average works out at just over £12 million across all licensed operators in Great Britain. This number isn’t fixed. It may rise or fall depending on the season, player activity, and the popularity of certain games or promotions. Some individual sites may earn significantly more or less than others, especially if they offer a wider variety of games or have a larger player base.
It’s worth noting that these figures represent a nationwide average. Each casino operator is different, and their results depend on many factors including their games library, potential payout structures, customer terms, and how they manage promotions.
How Do Online Casinos Make Profit?
Online casinos are built to earn money over time. This happens through something called the house edge. This is a built-in percentage that ensures the game is slightly in the operator’s favour, over many plays.
What Is the House Edge?
The house edge is the built-in statistical margin that gives the casino a long-term advantage in every game it provides. It represents the average percentage of each bet that the casino expects to retain over time, meaning that, across many bets and players, the casino is likely to take in more money than it pays out.
For example, if a game has a house edge of 4%, then the casino expects to keep £4 out of every £100 wagered over the long term. This doesn’t mean every player loses exactly that much—it just means that across millions of bets, the operator will earn a small percentage on average.
Each game has a different house edge. Slot games usually range between 3% and 20%, depending on how they are designed. Table games like roulette or blackjack often have a lower edge, depending on the version you’re playing and how you play it.
The important thing to remember is that all casino games involve random outcomes. There’s no method or strategy that removes the house edge or guarantees consistent wins. Outcomes can go in either direction at any time, so while one player might win, the overall structure tends to favour the casino.
Which Online Casino Game Has The Lowest House Edge?
Some games have a smaller house edge than others, which means you may see your balance last longer if you play carefully. That said, all games rely on chance, so nothing is ever guaranteed.
Blackjack is known for having one of the lowest house edges among casino games. When played using standard rules and basic strategy—a guideline based on maths that tells you the best action for every possible hand—the house edge can potentially drop to around 0.5%. This means that, on average, the casino may retain about 50p for every £100 wagered over time.
Baccarat is another popular option with a relatively low house edge. Betting on the banker hand offers an edge of around 1.06%, making it one of the better-value bets in the casino. However, it's important to note that most casinos apply a small commission—usually 5%—on any banker wins, which is factored into that house edge.
Video poker games—particularly Jacks or Better—can also offer a low edge when played with optimal strategy, sometimes under 1%. However, the house edge can vary between different versions of the game, so it may be useful to check the game’s rules and paytable first.
European roulette, with one zero, has a house edge of 2.7%. By contrast, American roulette, which adds a second zero, has a higher edge of 5.26%.
Slot games, which are the most widely played, usually have the highest house edge among casino games. These can vary from 3% up to 10% or more, depending on how the game is built. Because of their pace and design, slot games tend to involve faster wagering than table games.
At Clover Casino we offer some of the most popular slot games available on the market, including 9 pots of Gold, Fishin' Frenzy and the Rainbow Riches slot.
There’s no single “best” or “worst” game to choose. Some players prefer slower-paced games or those that involve a bit of decision-making, while others may enjoy games based purely on chance. It comes down to personal taste, how you like to play, and how much you’re comfortable spending.
Do Online Casinos Lose Money?
While online casinos are structured to earn money over time, they don’t make a profit on every single day. Sometimes, large potential payouts—such as jackpot wins—can temporarily outweigh what the casino takes in. Promotional offers or free spin campaigns may also lead to periods of higher player returns.
There are also costs involved in running an online casino. These include licensing, technology, customer support, payment processing, compliance, and advertising. So while the house edge helps generate consistent earnings, it’s not pure profit.
That said, the overall industry remains profitable. From April 2023 to March 2024, the online casino sector in Great Britain generated £4.4 billion in Gross Gambling Yield, according to the UKGC. This suggests a stable long-term model, even if there are short-term fluctuations.
Not all operators earn the same. The number of active accounts, games on offer, potential payout rates, and customer service can all affect how well a casino performs. If you’re thinking about joining a site, it may be worth checking the terms and conditions, wagering rules, deposit options, and available games to make sure it fits your preferences.
Play Casino Games Online
At Clover Casino, you can enjoy a wide selection of slots and table games. Our site is fully licensed and regulated by the UKGC, giving you peace of mind if you play.
Sign in or join to see what's on offer, from the latest releases to classic favourites. Whether you’re a fan of roulette, blackjack or action-packed slots, there are plenty of options to look through in your own time.
If you would like advice on safer gambling, resources are always available from GambleAware and the UKGC. You can set personal limits, manage your play, and keep things fun and safe on Clover Casino.
Now you understand the real numbers and how online casinos operate, you can make informed decisions about your play. Enjoy exploring your options responsibly.
*All values (Bet Levels, Maximum Wins etc.) mentioned in relation to these games are subject to change at any time. Game features mentioned may not be available in some jurisdictions.
**The information provided in this blog is intended for educational purposes and should not be construed as betting advice or a guarantee of success. Always gamble responsibly.