Doesn't personally affect me, but nevertheless, out of curiosity, it took about 30 seconds to complete the ATO Residency Determination Calculator.
Tax Tools -
CONTEXT=&KBS=residency_leaving.XR4
Determination of residency status – leaving Australia
Residency status
Version 2.0.0
You are not an Australian resident for taxation purposes following your departure from Australia.
You provided the following information
Are you under 16 years of age? No
Are you or your spouse an eligible employee in the CSS or a member of the PSS? No
Are/were you an Australian resident for tax purposes immediately before leaving Australia? Yes
Are you a temporary resident leaving Australia to live in another country (or countries)? No
Are you an Australian resident who is emigrating to live permanently in another country? No
Where were you born? Australia
What do you consider to be your home country? Australia
Will you spend the majority of your time based in any one place while overseas? Yes
How long will you be based in that place while outside Australia? 2 to 5 years
What accommodation will you occupy most of the time that you are in this place? Rented dwelling house, flat, etc
Are you a dependent child? No
Are you travelling with or joining family members (e.g. spouse, dependent children) overseas? All family members
Do you plan to return to Australia more than four times every year? Yes
What are your plans for your Australian home? Sell ASAP / Already sold
How often do you expect to visit Australia while you are based overseas? At least every 3 months
You should keep a copy of this decision for your taxation records.