In the United Kingdom, the minister without portfolio is often a cabinet position, and is sometimes used to enable the chairman of the governing party, contemporarily either the chairman of the Conservative Party or the chair of the Labour Party to attend cabinet meetings. The sinecure positions of Lord Privy Seal, Paymaster General, and Chancellor of the Duchy of Lancaster which have few responsibilities and have a higher rank in the order of precedence than minister without portfolio can also be used to similar effect. The office is currently held by Richard Holden.

The Cabinet of the United Kingdom is the senior decision-making body of His Majesty's Government. A committee of the Privy Council, it is chaired by the Prime Minister and its members include Secretaries of State and other senior ministers. Members of the Cabinet are appointed by the Prime Minister and are by convention chosen from members of the two houses of the Parliament of the United Kingdom, the House of Commons and the House of Lords.