(1) For the purposes of paragraph 2D(b), a person is in a de facto relationship with another person if the persons:
(a) are not legally married to each other; and
(b) are not related by family (see subsection (6)); and
(c) have a relationship as a couple living together on a genuine domestic basis.
(2) In determining for the purposes of paragraph (1)(c) whether 2 persons have a relationship as a couple, all the circumstances of their relationship are to be taken into account, including any or all of the following circumstances:
(a) the duration of the relationship;
(b) the nature and extent of their common residence;
(c) whether a sexual relationship exists;
(d) the degree of financial dependence or interdependence, and any arrangements for financial support, between them;
(e) the ownership, use and acquisition of their property;
(f) the degree of mutual commitment to a shared life;
(g) the care and support of children;
(h) the reputation and public aspects of the relationship.
(3) No particular finding in relation to any circumstance mentioned in subsection (2) is necessary in determining whether 2 persons have a relationship as a couple for the purposes of paragraph (1)(c).
(4) For the purposes of paragraph (1)(c), the persons are taken to be living together on a genuine domestic basis if the persons are not living together on a genuine domestic basis only because of:
(a) a temporary absence from each other; or
(b) illness or infirmity of either or both of them.
(5) For the purposes of subsection (1), a de facto relationship can exist even if one of the persons is legally married to someone else or is in a registered relationship (within the meaning of section 2E) with someone else or is in another de facto relationship.
(6) For the purposes of paragraph (1)(b), 2 persons are related by family if:
(a) one is the child (including an adopted child) of the other; or
(b) one is another descendant of the other (even if the relationship between them is traced through an adoptive parent); or
(c) they have a parent in common (who may be an adoptive parent of either or both of them).
For this purpose, disregard whether an adoption is declared void or has ceased to have effect.
(7) For the purposes of subsection (6), adopted means adopted under the law of any place (whether in or out of Australia) relating to the adoption of children.