The latest online slots statistics UK data from the Gambling Commission show that players staked £93.95bn on online slots in the 2025-26 financial year. Operators kept £4.79bn of that as gross gambling yield (GGY), up 15.5% on the year before. In practice, the market paid back about 94.9% of every pound staked.
Turnover vs GGY: how much is spent on online slots
Two numbers describe the size of the market. Turnover is the total amount staked, including winnings that players re-stake, while GGY is what operators keep after paying out prizes.
In the year to March 2026, online slots turnover reached £93,951.8m, up 9.3% from £85,933.8m in 2024-25. Online slots GGY rose faster, by 15.5%, from £4,148.0m to £4,789.6m.
Turnover overstates how much people actually spend, because the same pound can be staked many times in one session. GGY is the better guide to how much is spent on online slots, since it equals players’ combined net losses.
| Financial year | Slots turnover | Slots GGY | Implied hold |
|---|---|---|---|
| 2015-16 | £34,938.9m | £1,559.1m | 4.5% |
| 2018-19 | £56,097.9m | £2,211.1m | 3.9% |
| 2020-21 | £75,406.3m | £2,921.5m | 3.9% |
| 2023-24 | £79,160.9m | £3,587.6m | 4.5% |
| 2024-25 | £85,933.8m | £4,148.0m | 4.8% |
| 2025-26 (provisional) | £93,951.8m | £4,789.6m | 5.1% |
Slots dominate online casino gambling. They made up 74.3% of the £126,489.8m staked on remote casino products in 2025-26 and 84.0% of the £5,699.4m remote casino GGY. The wider market is covered in our UK gambling industry statistics guide.
Online slots statistics UK: a decade of growth
The long-run online slots statistics UK series shows steady growth. Since 2015-16, online slots turnover has risen about 2.7 times and online slots GGY about 3.1 times, on our calculation. The period also changed how players pay: since April 2020 GB-licensed operators have not been allowed to accept credit cards, so credit card casinos serving UK players are licensed outside Great Britain.
The biggest jump came in 2020-21, during the COVID-19 lockdowns, when slots GGY reached £2,921.5m. Turnover then dipped slightly in 2021-22 and 2022-23 before growing again, and both turnover and GGY have set new records in each of the last three years.
That growth came despite tighter game design rules and, from 2025, stake limits. The operator data suggest it has come mainly from more active accounts rather than more play per account: there were about 1,821 spins per active account in March 2019 and 1,840 in December 2025.
GGY has grown faster than turnover because the share kept by operators has risen. If the hold had stayed at its 2018-19 level, 2025-26 GGY would have been well below £4.79bn.
Key point: UK players are staking more on online slots and also getting back a slightly smaller share of each stake.
The real RTP across the market
Every slot game advertises a return to player (RTP) percentage, a long-run average of how much of each stake is paid back. Dividing GGY by turnover gives the share the market actually kept, which we call the implied hold.
In 2025-26 the implied hold was 5.1%, meaning an implied RTP of 94.9% across all online slots. Put simply, operators kept about £51 for every £1,000 staked.
That figure has crept up. The implied RTP was 96.1% in 2018-19, 95.5% in 2023-24 and 95.2% in 2024-25, so the slots RTP UK real-world average has fallen by about one percentage point in seven years.
Implied hold = online slots GGY ÷ online slots turnover, from the Commission’s annual industry statistics. It is our own calculation, not an official RTP, and it reflects the mix of games people chose to play.
A lower RTP does not necessarily mean games became less generous. A shift towards games or features with higher margins would have the same effect on the average.
The market-wide figure does not tell you what any single game pays. Games can have very different RTPs, and short sessions vary widely around the long-run average. RTP also says nothing about how quickly winnings are paid out, a separate question covered in our guide to instant withdrawal casinos.
How many online slots players are there?
The Commission also publishes monthly operator data from the biggest operators, covering about 70% of the online market. In December 2025, those operators had 4,918,471 active slots accounts.
That is 5.4% more than in December 2024 (4,668,587) and 2.3 times the 2,096,377 recorded in March 2019, when the series began. Accounts are not people, because one player can hold accounts with several operators.
Survey data give a different picture of online slots players UK-wide. In the Gambling Survey for Great Britain, 3.3% of adults said they played online slots in the past four weeks, as our guide to how many people gamble in the UK explains.
Spins, sessions and session length
The same operators recorded 9,049,711,747 spins in December 2025, or about 9.05bn. That is 7.2% more than the 8.44bn spins in December 2024 and works out at roughly 1,840 spins per active account in the month.
Sessions are getting shorter. The average session length fell from 25.5 minutes in March 2019 to 17.8 minutes in December 2024 and 15.2 minutes in December 2025.
There were 71.4 million slots sessions in December 2025, of which 3.03 million lasted an hour or more. That is 4.2% of sessions, down from 6.0% a year earlier.
- More sessions: 71.4 million in December 2025, against 16.8 million in March 2019.
- Shorter sessions: 15.2 minutes on average, down from 25.5 minutes.
- Fewer long sessions: 4.2% lasted an hour or more.
Seasonality: December is the busiest month
Slots activity follows a clear calendar. December 2025 had the highest active accounts, spins, sessions and GGY of any month in 2025, with sample GGY of £283.1m.
That was 13.1% above the £250.2m recorded in December 2024. Average GGY per active account was about £58 in the month, on our calculation.
February is the quietest month, partly because it is the shortest, with £212.2m of sample GGY and 7.26bn spins in February 2025. Active accounts were lowest in July 2025, at 4.33 million.
Early summer 2025 also saw a dip that coincided with new stake limits, which makes the effect of the rules harder to isolate from normal seasonal patterns. The monthly sample covers GB-licensed operators only, so play at cryptocurrency casinos licensed elsewhere is not included.
How stake limits changed play
Online slots stake limits came into force in April 2025 under the Gambling Act 2005 (Operating Licence Conditions) (Amendment) Regulations 2025. Players aged 25 and over may stake no more than £5 per spin, and those aged 18 to 24 no more than £2.
The £2 limit for young adults followed after a further six weeks, with £5 applying to everyone in the meantime. The government’s impact assessment noted that most operators offered stakes of up to £50 per spin before the change, with some as high as £500.
- October 2021: Commission game design rules set a minimum of 2.5 seconds per spin and banned losses disguised as wins.
- April 2025: the £5 stake limit took effect for all adults.
- Six weeks later: the £2 limit for 18 to 24 year olds applied.
- 2025 onwards: a statutory levy on gambling operators also began, as noted by Playtech in its 2025 annual report.
The operator data show a short-term change. Sessions lasting more than an hour fell 23.4%, from 3.66 million in March 2025 to 2.80 million in April, and active accounts fell 7.9% between March and June 2025.
By December 2025, however, accounts, spins and GGY were all at record levels. Playtech, a major supplier of slot games, cited the stake limits and levy among the changes facing UK operators, alongside the rise in Remote Gaming Duty explained in our UK gambling tax guide.
Online slots are less common in Scotland than lottery draws or betting, as our article on gambling in Scotland shows.
FAQ: online slots in the UK
Quick answers based on Gambling Commission data.
How much is spent on online slots in the UK?
Players lost a combined £4,789.6m on online slots in 2025-26, measured as GGY. Total stakes were £93,951.8m, but most of that was won back and re-staked.
What is the average RTP of online slots in the UK?
Across the whole market the implied RTP was 94.9% in 2025-26, on our calculation from Commission data. Individual games vary.
What is the maximum stake on online slots?
£5 per spin for players aged 25 and over, and £2 per spin for players aged 18 to 24.
How many people play online slots in the UK?
Large operators reported 4,918,471 active slots accounts in December 2025. In the GSGB, 3.3% of adults said they had played online slots in the past four weeks.
Annual figures are for financial years (April to March); 2025-26 is provisional. Operator data cover about 70% of the online market and should not be compared directly with the annual GGY. Implied hold and RTP are our own calculations.
- Gambling Commission, Industry statistics, April 2025 to March 2026 (xlsx), table 10a.
- Gambling Commission, Operator data, October to December 2025 (xlsx), Online tables 1 to 4.
- The Gambling Act 2005 (Operating Licence Conditions) (Amendment) Regulations 2025 (SI 2025/215).
- DCMS, impact assessment for the Gambling Act 2005 (Operating Licence Conditions) (Amendment) Regulations 2025.
- Playtech plc, Annual Report 2025.
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