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B1 gaming machines

There are duties to be paid on gaming machines. You should read this information in conjunction with the guidance from HMRC on GOV.UK (opens in new tab).

Requirements for B1 gaming machines

Maximum stake:
Maximum prize:
£10,000 - with the option of a maximum £20,000 linked progressive jackpot on a premises basis only
Permitted location:
2005 Act and 1968 Act casinos
Maximum number of machines - 2005 Act large casinos:

Up to a maximum of 150

Any combination of categories B to D - subject to a machine to table ratio 5:1

Licences and permits required

B1 machines can only be made available in casinos. You must have either a non-remote 2005 Act casino operating licence or a non-remote 1968 Act casino operating licence to make them available.

Gaming machine technical standards

See our gaming machine technical standards (categories A and B1) for the full details of the technical standards which this category of machine must comply with.

All gaming machines sited on casino premises must comply with our gaming machine technical standards.

Test houses

Category B1, B2, B3 and B3A gaming machines must be tested by an independent test house to ensure they comply with the technical standards in full. Test houses are also sometimes referred to as test labs.

For categories A, B1, B2, B3, B3A, B4, C, D, server networked and downloadable, cashless payment, linked progressives and wireless networks refer to the gaming machine testing strategy.

Return to player (RTP)

B1 machines must display the 'theoretical target percentage return to player'. RTP is an average measured over a large number of games and will vary over a typical session due to normal game volatility.

The manufacturer will decide on the game RTP.

There is no minimum RTP requirement. However, the minimum average return must be displayed to the player for the game.

The value displayed must be verified either by the manufacturer or accredited test house for categories B1, B2, B3 and B3A.


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B2 gaming machines
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