New South Wales
The issue of a person are that person’s lineal descendants, namely, the person’s children, grandchildren, great grandchildren etc, whether or not the person was married. Issue includes children officially adopted by that person but does not include the person’s biological child who was adopted by others. Stepchildren are not issue.
Parentage may be established by presumption, as set out in ss 9–14 of the Status of Children Act 1996 (NSW).
Victoria
The issue of a person are that person's lineal descendants, namely, the person's children, grandchildren, great grandchildren etc, whether or not the person was married. Issue includes children officially adopted by that person but does not include the person's biological child who was adopted by others. Stepchildren are not issue.
Queensland
The issue of a person are that person's lineal descendants, namely, the person's children, grandchildren, great grandchildren etc, whether or not the person was married. Issue includes children officially adopted by that person but does not include the person's biological child who was adopted by others. Stepchildren are not issue.
Western Australia
Reference to the issue of a person is a reference to that person's lineal descendants. Issue includes the person's children, grandchildren, great grandchildren etc. Adopted children are treated as children of their adopting parents: s 75(1)(a) of the Adoption Act 1994 (WA)
For the purposes of the Administration Act 1903 (WA), issue includes children, grandchildren and great grandchildren.
South Australia
Reference to the issue of a person is a reference to that person's lineal descendants. Issue includes the person's children, grandchildren, great grandchildren etc.
Tasmania
Reference to the issue of a person is a reference to that person's lineal descendants. Issue includes the person's children, grandchildren, great grandchildren etc. Adopted children are treated as children of their adopting parents: s 10(b) Intestacy Act 2010 (Tas).
Australian Capital Territory
The issue of a person are that person's lineal descendants, namely, the person's children, grandchildren, great grandchildren etc, whether or not the person was married. Issue includes children officially adopted by that person but does not include the person's biological child who was adopted by others. Stepchildren are not issue.
Parentage may be established by presumption, as set out in ss 7–11 of the Parentage Act 2004 (ACT).
See Who are the issue?.