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Australia decides who becomes a citizen — and who keeps the right to come home — largely by counting days. The thresholds are specific, and the arithmetic is unforgiving.
Citizenship: four years, and two absence caps
Most people apply for Australian citizenship "by conferral". Under the general residence requirement, you must have:
- lived in Australia on a valid visa for the 4 years immediately before you apply;
- held a permanent visa (or a Special Category subclass 444 visa) for the 12 months immediately before you apply;
- been absent from Australia for no more than 12 months in total across those four years; and
- been absent for no more than 90 days in the 12 months immediately before you apply.
The last two are hard limits on time away, and they are where applications stumble. You may spend up to a year outside Australia across the four-year window — but no more than 90 days of it can fall in the final twelve months before you lodge. Cross either line, even by a few days, and you generally wait until you qualify again.
The 12-month permanent-residence condition is separate from the four-year presence count: you have to actually hold a permanent visa for that final year, and stay a permanent resident throughout any absences in it. Because the sums are fiddly, Home Affairs publishes a Residence Calculator that works off your entry and exit dates and tells you whether you currently satisfy the rule.
There are other routes — citizenship by descent, applicants aged 60 or over, and limited exemptions and ministerial discretion — and the requirements can change. Always check the official guidance for your own situation.
Permanent residence doesn't expire — the right to return does
A common and costly misunderstanding: permanent residence in Australia does not lapse just because you live abroad for a while. What lapses is the travel facility attached to your permanent visa.
That facility is valid for 5 years from the date the visa was granted. While it is valid, you can leave and re-enter as a permanent resident. Once it expires, your status stays intact as long as you are inside Australia — but you can no longer use the old visa to travel back into the country.
The Resident Return Visa, and its 730-day test
To keep travelling as a permanent resident after those five years, you apply for a Resident Return Visa (subclass 155 or 157). Which one you get — and how long it lasts — again comes down to days.
| If you have… | You may be granted |
|---|---|
| At least 2 years (730 days) in Australia as a permanent resident in the past 5 years | An RRV with a 5-year travel facility |
| Less than that, but substantial ties of benefit to Australia (business, employment, cultural or personal) | An RRV with a 12-month travel facility |
If you fall short on both counts, re-entry can become genuinely difficult. The safe habit is to know, at any moment, how many days you have actually spent in Australia over the last five years — not a rough guess based on memory.
Why the exact dates matter
The thread running through all of this is that Australia's decisions turn on a precise, defensible count of days present and days absent — and the government holds its own copy of that record. Movement is logged at the border, so an application whose dates disagree with those records invites questions.
People routinely try to reconstruct years of travel from old boarding passes and passport stamps the moment a form asks for every entry and exit date. It is slow, and it is easy to be off by the handful of days that decides a 90-day cap or a 730-day threshold. The same care pays off well beyond immigration: tax residency is a separate regime with its own tests (see Who has to prove where you were?), and Australia's immigration day counts should never be conflated with the Schengen 90/180 rule or any 183-day tax rule.
If you also track another country's system, the companion piece on how Canada counts your days for PR and citizenship covers a similar physical-presence model.
A contemporaneous record is the quiet answer to all of it. Countly counts your days in each country automatically and privately, on your own phone — no account, no analytics — so when a residence calculator, an RRV application or a citizenship form asks exactly how long you were in or out of Australia, the dates are already there.