กฎเกณฑ์เกี่ยวกับอายุการใช้งานของหนังสือเดินทางสำหรับชาวออสเตรเลียภายใต้ระบบ eVisa ของกัมพูชา: กฎ 6 เดือน (ปี 2026)

Worked timeline: trip in 4 weeks, passport expires in 5 months — what to do this week

• This week (week 0): book the DFAT priority passport appointment in person at your nearest Australian Passport Office. Bring the renewal form, fresh passport photos, your old passport, and payment for both the standard fee and the priority uplift. Total cost in June 2026 is roughly $251 AUD plus the standard $325 AUD adult fee.
• Week 0 to week 1: priority processing runs at roughly 2 business days. New passport is in your hand within 2-3 calendar days, often less. Note the new passport number — you will need it for the eVisa application.
• Week 1: apply for the Cambodia eVisa using the new passport number and a fresh scan of the new bio page. Through us, this is 3 business days at $80 USD (~$122 AUD) tourist, with free resubmission if Immigration flags anything.
• Week 2: the approved eVisa PDF lands in your inbox. Print it out and clip it inside the new passport, or save it to your phone with offline access.
• Week 3: submit the Cambodia e-Arrival Card within 7 days of your flight. Separate form, $5 USD (~$7.50 AUD), 14 fields, end-to-end check before it reaches Cambodian Immigration.
• Week 4: fly. The check-in system reads the new passport, the validity passes the 6-month rule comfortably, and you board.

This sequence has roughly 7-10 days of slack built in across the priority renewal and the visa processing — enough to absorb a postal delay, a one-day Immigration flag for a photo retake, or a busy DFAT office on the day you walk in. If the trip is closer than 4 weeks, the same sequence still works but the buffer thins out; we have run it inside 14 days more than once. The Cambodia visa edge cases for Australians guide covers the genuinely tight cases — under 14 days from rejection to flight, for example — where the priority lever is the only path through.

Edge cases — emergency replacement abroad, child passports, new passport in transit

Recently renewed but new passport hasn't arrived yet. If your renewal is in progress with DFAT but the physical passport is not yet in your hand, do not apply for the Cambodia eVisa with the old passport number. The eVisa is tied to the passport number you applied with, and an eVisa attached to a passport you no longer hold is unusable at the Cambodian border. Wait for the new passport to arrive, then apply with the new number and a fresh bio-page scan. If you have already applied on the old passport and the new one arrives, we can update the application before submission — reply to your confirmation email with the new passport number. The Smartraveller advisory for Cambodia is worth a read in the meantime, since it covers the standing health and safety context that does not depend on which passport you hold.

Putting it together before you book

Before anything else — before you book a flight, before you apply for the eVisa, before you plan the itinerary — pull out your Australian passport, open it to the bio page, and check the expiry date against your intended Cambodia arrival date. If the gap is comfortably above 6 months, you are ready to proceed. If it is anywhere in the 6-to-7-month range, treat it as a renewal trigger rather than a borderline pass. If it is under 6 months, the trip stops here until DFAT issues a new passport. The Cambodia eVisa rejected — what to do next guide covers the broader fix flow if a rejection has already arrived in your inbox.

One small reminder that catches a few Aussies each year: the photo on the eVisa must match the photo in the passport you are travelling on. If you renew between application and flight, the eVisa attached to the old passport is no longer valid. Re-apply against the new passport number. The Cambodia eVisa photo requirements piece walks through what the eVisa portal accepts from a phone camera. When you are ready, the Australian application walkthrough takes you through the upload step-by-step.

If you want the wider eligibility picture before you commit to the validity check, the Do Australians Need a Visa for Cambodia explainer covers the eligibility, fee, and pathway picture in full.

Next steps and related reading for Australians: apply for your Cambodia eVisa when you are ready to lodge, bookmark our Cambodia visa hub for Australian citizens as the single canonical reference, skim the FAQ on Cambodia visa passport requirements for quick answers, and use our glossary of Cambodia visa terms to decode any acronym in this guide.