
Australia is relaxed on passport validity — but you still need a visa (ETA or eVisitor) for nearly every nationality, and that requires a valid passport to apply.
Duration of stay only. Must be valid for the duration of your stay.
Must be valid for the duration of your stay.
Australia's official requirement is that your passport is valid for the duration of your stay — no six-month buffer. In practice, Qantas, Emirates, Singapore Airlines and Qatar all apply the same rule at check-in via Timatic, so if you're covered for your booked return you'll clear the desk. The bigger problem is the Electronic Travel Authority (ETA) or eVisitor visa, both of which are locked to the passport number on the application.
Renew your passport after being granted an ETA and it's automatically invalid. You'll need to reapply through the Australian ETA app before departure — approval is usually within minutes but the app rejects some card types and expat email domains, which turns a five-minute job into a next-morning problem. Handle it more than 48 hours before your flight.
SmartGate at Sydney, Melbourne, Brisbane and Perth accepts ePassports from a growing list of countries. The gates read both the chip and the expiry date, and a passport with under a month of validity will fail even if you're only staying two weeks.

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