The following people are considered Australian residents for tax purposes by the ATO:
- those who have always lived in Australia
- those who have moved to Australia permanently
- those who have been in Australia for more than six months working the same job and living in the same place
- those who have been in Australia for more than half the financial year (unless they maintain a home overseas and do not intend to live in Australia)
If none of these conditions apply, you are most likely a nonresident for tax purposes.
If there’s any ambiguity regarding your residency status, the determination may depend on your intentions.
If you leave Australia permanently, you will cease to be a resident on the day you depart. For the fraction of the year before that, you will be treated as a resident.