Stamp Duty is a tax levied by states on various types of transactions such as transfers and agreements for the sale of real estate.
The amount of stamp duty you pay is based on the price of the property you buy. The amount varies from state to state.
Visit the revenue office website of your state for further information:
South Australia www.revenuesa.sa.gov.au
Western Australia www.dtf.wa.gov.au
Northern Territory www.nt.gov