Australia Age of Consent Laws and Regulations
Australia operates as a federation of States and Territories, meaning that the primary jurisdiction over the age of consent—the legal age at which a person is considered capable of agreeing to sexual activity—rests with each individual state and territory. While laws vary by region, a significant shift occurred following a 1997 United Nations Human Rights Committee ruling. Leveraging the international affairs power of the Australian constitution, states repealed rules that previously created differences in the age of consent based on whether the individuals were homosexual or heterosexual.
Beyond state borders, federal legislation ensures that Australian citizens, residents, or corporate bodies are held accountable for sexual offenses committed outside of Australia. Specifically, it is a federal offense to have sexual intercourse with, or induce a child under the age of 16 to engage in sexual acts, while abroad.

Key Facts
- The general age of consent across most Australian jurisdictions is 16, though it is 17 in South Australia and Tasmania.
- Many states provide a close-in-age defense (or exemption), allowing sexual activity if the age gap between partners is small.
- The Human Rights (Sexual Conduct) Act 1994 protects the right of consenting adults (18+) to engage in private sexual conduct regardless of gender or orientation.
- Stricter laws typically apply when one party is in a position of authority (such as a teacher or guardian) over a person under 18.
State and Territory Regulations
Because jurisdiction is decentralized, the specific legal requirements and available defenses vary. The following table provides a comparative overview of the age of consent and the minimum age for which a close-in-age exemption may apply.
| State/Territory | Age of Consent | Difference in Age Exemption Applies From |
|---|---|---|
| New South Wales | 16 | 14 |
| Queensland | 16 | – |
| South Australia | 17 | 16 |
| Tasmania | 17 | 12 |
| Victoria | 16 | 12 |
| Western Australia | 16 | 13 |
| Northern Territory | 16 | – |
| Australian Capital Territory | 16 | 10 |
New South Wales, Victoria, and Western Australia
In New South Wales, the age of consent is 16. Under the Criminal Legislation Amendment (Child Sexual Abuse) Act 2018, a close-in-age defense exists for those aged 14 and 15 if the partner is less than two years older. In Victoria, the age is 16, with a defense for those 12 and older if the partner is no more than two years older or if the parties are married. Western Australia also sets the age at 16 and prohibits sex between a person under 18 and someone in a position of authority.
Queensland and the Northern Territory
Queensland maintains an age of consent of 16 with no close-in-age exception. Notably, legislation in September 2016 equalized the age of consent for anal sex to 16. However, the age may be raised to 18 if the adult is a carer or supervisor. Similarly, the Northern Territory sets the age at 16, with additional offenses for those in positions of care over persons under 18.
South Australia and Tasmania
These two jurisdictions have a higher general age of consent. In South Australia, the age is 17. A defense exists if the person is 16 and the partner is under 17 or reasonably believed to be 17 or older. In Tasmania, the age is 17, but defenses apply if the younger person is 12+ and the partner is no more than 3 years older, or if the younger person is 15+ and the partner is no more than 5 years older.
Territories and Special Jurisdictions
The Australian Capital Territory (ACT) sets the age of consent at 16, with a defense if the younger party is 10 or older and the partner is no more than two years older. These ACT laws also apply to the Coral Sea Islands Territory. In Norfolk Island, it is an offense to have sexual intercourse or commit an act of indecency with anyone under 16, with proposals to introduce laws regarding persons under special care based on the ACT model.
Frequently Asked Questions
What is a close-in-age defense?
A close-in-age defense is a legal provision in several Australian states that may excuse sexual activity involving a person below the legal age of consent, provided the age difference between the two individuals is within a specific, small limit (e.g., two or three years).
Does the age of consent differ based on sexual orientation in Australia?
No. Following a 1997 United Nations Human Rights Committee ruling, Australian states repealed laws that differentiated between homosexual and heterosexual individuals regarding the age of consent.
Are there stricter rules for teachers or guardians?
Yes. In many jurisdictions, including New South Wales, the Northern Territory, and the ACT, it is an offense to have sexual intercourse with a person under 18 if that person is under the care of the offender, such as a teacher or guardian.
Do Australian consent laws apply outside of the country?
Yes. Under federal legislation, it is an offense for Australian citizens, residents, or corporate bodies to have sexual intercourse with or induce a child under 16 to engage in sexual acts while outside of Australia.
What is the age of consent in South Australia and Tasmania?
In both South Australia and Tasmania, the general age of consent is 17, which is higher than the age of 16 found in most other Australian states and territories.