How much should a gaming machine (also known as a fruit machine or slot machine) pay out in winnings?
Gaming machines (fruit machines, slot machines) offer different
prize amounts depending on their category.
All gaming machines are required to clearly display the
percentage return-to-player figure (% RTP), or the odds of winning
a prize, from use of the machine.
It is important to realise however, that the % RTP is an average
achieved over a significant number of game plays* and not each time
the gaming machine is played. For example, if a gaming machine
displays an 85% RTP, you should not expect to win an average of 85
pence for every £1 you stake during a playing session.
*Average % RTP is generally measured over 10,000 or 100,000
games or greater for compensated (1) and random
(2) machines respectively, dependent upon their
Gaming machine (fruit machine, slot machine) minimum percentage
There is no statutory minimum percentage payout for a gaming
machine. The technical standards for legacy gaming
machines however, do put a lower limit of 70% as a % RTP.
(1) Compensated machines vary the chance of
winning a prize as a result of the outcome from previous play.
Where such a machine is below its target %RTP it may become more
generous dependent upon design and vice versa, though the prize
distribution is still determined by chance.
(2) Random machines rely purely on statistical
probabilities to achieve their target percentage return to player.
The odds of achieving a win remain constant, and are not affected
by previous wins or losses.
Gaming machines must make information available about their
category; % RTP; and whether they are compensated or random.
For further information about %RTP please see: How does the Gambling Commission ensure that the
percentage of winnings returned to players by gaming machines is
If you have experienced a problem with a gaming machine (fruit
machine, slot machine) you have played, please see: How do I complain about a gambling transaction
Last reviewed: September 2012