Skilled Migrant Investor, Entrepreneur, Residence from Work and other residence categories:
Dependent children of a principal applicant are children aged up to 24 years who are unmarried and who have not married, in a civil union, or in a defacto relationship, and who have no children of their own. They need not live with you but must at least rely mainly on you or your partner for financial support.
Temporary Work, Study, Visit or Limited Purpose Visas:
Dependent children of a principal applicant are children aged up to 19 years who are unmarried, in a civil union, or in a de facto relationship, and who have no children of their own. They need not live with you but must at least rely mainly on you or your partner for financial support.