The Ministerial and Other Salaries Act 1975 (c. 27) is an Act of the Parliament of the United Kingdom that governs the salaries of ministerial and certain other political offices in the UK.
In 2003, a joint public bill committee deemed the Act one of "the fundamental parts of constitutional law..."
The Act also sets out the salaries of government ministers, opposition leaders, opposition whips and the speakers of the two houses of Parliament, as set out below:
There can be up to 100 paid posts across the following ministerial offices.
There can also be paid posts in each of the following 9 ministerial offices.
There can be up to 6 paid posts across the following opposition offices.
There can be 1 paid speaker in each House.
The Act explicitly imposes the following numerical limits on the number of ministerial salaries paid. The effect of this Act is that the maximum number of paid ministerial posts is 109.
The Act also explicitly imposes the following numerical limit on the number of opposition salaries paid.