Australian Tax Office
Includes information on the new tax system, income taxes for individuals, and business taxes.

Australian Security and Investment Commission
National regulator of Australia's 1.2 million companies.

Australian Valuation Office
Commonwealth's primary source of advice and information on valuations of real property, intellectual property, and non-current assets.

Office of State Revenue
OSR administers State taxation, collects revenue, develops policy and implements legislation relating to State taxation for and on behalf of the people of NSW.