Prostitution in Australia is governed by state and territory laws, which vary considerably, although none ban the selling of sex itself.
There is no evidence of pre-colonial prostitution amongst Indigenous Australians, however sexual practices more consistent with the modern understanding of polygamy were common, such as the exchange of women to demonstrate friendship. Colonial-era prostitution was controlled via legislation such as the colonial versions of the Contagious Diseases Acts, passed in Victoria and Queensland. Although colonies such as South Australia chose not to pass any CD Act, seeing it as "infringement on the rights of women and official condoning of immorality".[10] After Federation, criminal law was left in the hands of the states, which by and large did not make selling of sex itself illegal, although many acts associated with it such as solicitation, brothel keeping, and leasing accommodations were made illegal.[11]
From the 1970s onwards, prostitution restrictions have generally eased. A 1990 Australian Institute of Criminology report recommended decriminalization of prostitution.[12] New South Wales decriminalized street-based sex work in 1979, using a model subsequently adopted by jurisdictions such as New Zealand, and made brothels legal in 1995.[13]
The United Nations Programme on HIV and AIDS (UNAIDS), which issues regular statistics on sex work, estimated there were around 20,500 sex workers in Australia in 2016.[14] Scarlet Alliance, a national peer sex worker NGO, provides advocacy for sex workers in Australia.
Queensland since 2 August 2024[15] is the most recent state to decriminalise sex work, removing most criminal penalties associated with sex work and abolishing the brothel licensing systems.[16][17][18] Victoria decriminalised sex work in 2023.[19] The Northern Territory decriminalised sex work in 2019.[20]