The Undertakers' Assistants & Cemetery Employees' Union of Australia was registered with the Commonwealth Conciliation & Arbitration Court on 27 March 1916. The federal union was formed from the Undertakers Assistants' Union of Victoria and amalgamation with the New South Wales union was achieved in late 1919 when it became the NSW Branch, followed by the amalgamation of other states. The Federal Office was conducted from Trades Hall, Melbourne, along with the Victoria Branch. The Union operated until 1988 when it merged into the Australian Workers' Union.

The Undertakers Assistants' Union of Victoria was formed in Melbourne on 26 September 1890 and reformed on 24 August 1900. By November 1914 it was known as the Federated Undertakers' Assistants & Cemetery Employees' Union of Australia and by August 1915 it became the Victorian Branch of the Undertakers' Assistants & Cemetery Employees' Union of Australia.