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B4 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).

B4 gaming machines requirements

Maximum stake:
£2
Maximum prize:
£400
Permitted locations:
  • members' club, miners’ welfare club or commercial club
  • bingo premises
  • adult gaming centre
  • betting shops
  • tracks with pool betting
  • 2005 Act and 1968 Act casinos.
Maximum number of machines - members' club, miners’ welfare club or commercial club

Up to a maximum of 3

Maximum number of machines - bingo premises and adult gaming centre

Up to a maximum of 20% of the total number of machines available for use on the premises

Maximum number of machines - betting shops and tracks with pool betting

Up to a maximum of 4

Any combination of categories B to D

Maximum number of machines - 2005 Act large casino:

Up to a maximum of 150

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

Maximum number of machines - 2005 Act small casino:

Up to a maximum of 80

Any combination of categories B to D - subject to a machine to table ratio 2:1

Maximum number of machines - 1968 Act casino:

Up to a maximum of 20

Any combination of categories B to D - or any number of C or D machines instead

Licences and permits required

B4 machines can only be made available in casino, betting shops, tracks with pool betting, bingo halls, adult gaming centres, members' clubs, miners’ welfare clubs or commercial clubs.

Members' clubs - for example, working men’s clubs, branches of the Royal British Legion and clubs with political ties - and Miners’ welfare institutes - as defined in the Licensing Act 2003 (opens in new tab) may site up to three machines from categories B3A, B4, C or D (only one can be B3A) with a club machine permit.

Commercial clubs may site up to three machines from categories B4, C or D (not B3A machines).

AGC and bingo premises licences granted before 13 July 2011 are entitled to make available four (for AGC) or eight (for bingo) category B3/B4 gaming machines, or 20% of the total number of gaming machines, whichever is the greater.

You must have one of the following to make them available:

If you are a machine manufacturer or supplier you will need a gaming machine technical licence, which type will depend on the nature of your business.

Gaming machine technical standards

See our gaming machine technical standards (categories B3 and B4) for 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 B4, C, and D gaming machines can be tested via an independent test house or via the manufacturers own processes under strict controls. 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)

B4 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.

Files

Some files may not be accessible for users of assistive technology. If you require a copy of the file in an accessible format contact us with details of what you require. It would help us to know what technology you use and the required format.

PDF Files Some PDF files cannot be displayed in a browser, you will see a message saying "Please wait...". If you see this message, you will need to download the file and open it in Adobe Acrobat Reader (opens in a new tab).

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C gaming machines

Last updated: 11 December 2023

Show updates to this content

Following an audit corrected link formatting issues only.Test house link updated

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