The Public Services, Tax and Commerce Union (PTC) was created on 1 January 1996 by the merger of the National Union of Civil and Public Servants (NUCPS) and the Inland Revenue Staff Federation (IRSF). Plans for this merger had been agreed between the two unions in October 1994. In March 1998 the PTC amalgamated with the Civil and Public Services Association (CPSA) to form the Public and Commercial Services Union (PCS).
The PTC represented executive, directing, support, manual and industrial grades of the Civil Service and other public organisations (including the Post Office, Girobank, the British Airports Authority, the Civil Aviation Authority, the Crown Agents, British Nuclear Fuels Ltd, the UK Atomic Energy Authority, the National Computer Centre, national museums and galleries, the Palace of Westminster, and civilian staff employed by the armed forces, the Prison Service and the Metropolitan Police). These grades included, among others, executive officers, revenue officers, immigration officers, customs officers, instructors, communications staff, technicians, craftsmen, Coastguards up to the rank of District Officer, Royal Parks Constabulary officers up to the rank of Chief Superintendent, foresters, storekeepers, catering staff, cleaners, security officers, messengers, paperkeepers, library assistants, museum warders and sales staff, court ushers, laboratory assistants, photographic and reprographic staff and Metropolitan Police traffic wardens.