Federalism in Australia

Federalism was adopted, as a constitutional principle, in Australia on 1 January 1901 – the date upon which the six self-governing Australian Colonies of New South Wales, Queensland, South Australia, Tasmania, Victoria, and Western Australia federated, formally constituting the Commonwealth of Australia. It remains a federation of those six original States under the Constitution of Australia.

Australia is the sixth oldest surviving federation in the world after the United States (1789), Mexico (1824), Switzerland (1848), Canada (1867), and Brazil (1891).

Relatively few changes have been made in terms of the formal (written) constitution since Australian federation occurred; in practice, however, the way the federal system functions has changed enormously. The most significant respect in which it has changed is in the degree to which the Commonwealth government has assumed a position of dominance.