To become an Australia citizen, permanent residents must:
- Have been living in Australia – on a valid Australian visa – for 4 years immediately before applying which must include the last 12 months as a permanent resident, and
- Not have been absent from Australia for more than one year in the past 4 years, including no more than 90 days in the last year before applying.
The Department has a handy Citizenship Wizard and some other helpful information.