Returning to Cambodia on a Different Passport: The Aussie 2026 Guide
Renewed your Australian passport? Married and on a new surname? Travelling on a second passport for business? Cambodia treats every fresh passport number as a fresh applicant — here's what changes, what stays the same, and what biometrics still catch.
I'm an Aussie returning to Cambodia on a different passport — what do I need to know about the eVisa?
Each Cambodia eVisa application is keyed to the passport number, not your underlying identity. A renewed Australian passport, a second passport for business travel, or a passport in a new married surname produces a fresh application with no carry-over from prior trips — same $80 USD (~$122 AUD) Tourist or $90 USD (~$137 AUD) Business fee, approved in 3 business days, delivered as a printable PDF by email. Cambodia's MFAIC has no visibility on your prior visa history under the old passport number, so you apply as a 'new' applicant. The one place identity does resurface is at Immigration biometrics on entry — face match and fingerprint can still tie you back to a prior Cambodia record, which only matters if your earlier history included an overstay, deportation, or fraud flag.
Wichtigste Erkenntnisse
- Cambodian Immigration keys to passport number, not person identity. A renewed, replaced, or post-name-change passport produces a fresh eVisa record with no link to prior trips on the previous passport number.
- Your prior visa history isn't visible to MFAIC under the new passport — you apply as a 'new' applicant with $80 USD (~$122 AUD) Tourist or $90 USD (~$137 AUD) Business, approved in 3 business days.
- Name-change marriage, DFAT renewal, second passport for business, and emergency replacement all produce the same application shape — what differs is the supporting paperwork you may need to carry on the plane.
- Biometrics on entry (face match, fingerprint) can still surface a prior Cambodia record even when the passport number is new — relevant only if your earlier history included an overstay, deportation, or fraud flag.
- The fix for a passport number mismatch on an existing eVisa is a free resubmission with the new details — never travel on a PDF that shows the old number.
Why Cambodia treats a new passport as a new applicant
Cambodia's eVisa system is built on the passport number as the primary key. Every application opens a fresh record, every approval pairs the visa to that exact passport number, and every entry at KTI, SAI, or KOS is checked against the passport you're physically holding. Person-level identity — your name, your face, your date of birth — sits in supporting fields, but it is the passport number that the database treats as canonical.
This has a clean practical consequence for Aussie returning travellers. A renewed Australian passport carries a different number from the old one. A second passport for business carries a different number again. A post-name-change passport replaces the surname field and the passport number. In every case, the Cambodian system sees a new applicant. The prior trips on your previous passport are not deleted — they sit against that earlier number — but they don't transfer, don't pre-populate, and don't generate any kind of returning-traveller flag at MFAIC's end.
The four Aussie scenarios — different passport, different paperwork
Four scenarios make up the bulk of 'different passport' cases we see on the Aussie returning-traveller desk. Each one produces the same shape of eVisa application, but each one carries different supporting paperwork you may need to show at check-in, at transit, or on rare occasion at Cambodian Immigration. Knowing which scenario you're in upfront keeps the trip clean.
Scenario 1: DFAT-renewed passport (same name)
The most common Aussie 'different passport' situation is a straightforward DFAT renewal between Cambodia trips. Your previous passport approached its expiry, you renewed it through Australia Post or a DFAT office, the new passport arrived with a different number and a fresh ten-year validity. Apply for the Cambodia eVisa on the new number — $80 USD (~$122 AUD) Tourist or $90 USD (~$137 AUD) Business, approved in 3 business days, delivered as a printable PDF by email. The old passport doesn't need to be carried, though some Aussies bring it as a souvenir; the cancelled stamps on the old one have no operational role at Cambodian Immigration.
Scenario 2: post-marriage name change
If you've married and updated your surname on the passport, the new document carries both a new name and a new passport number. The eVisa application uses the name exactly as it appears on the new passport's machine-readable zone. If the airline booking is still in your maiden name from before the change, fix that before flying — Cambodian Immigration cross-checks the passport name against the boarding pass on arrival. Carry the marriage certificate and a statutory declaration of name change in your carry-on; you almost certainly won't be asked for them at KTI, SAI, or KOS, but they are useful for airline check-in if the boarding-pass and passport names diverge slightly.
Häufig gestellte Fragen
I just renewed my Australian passport — does my old Cambodia visa history carry over?
No. Cambodia keys every eVisa record to the passport number, so your renewed passport produces a fresh applicant record with no link to prior trips on the old number. Apply on the new passport — $80 USD (~$122 AUD) Tourist or $90 USD (~$137 AUD) Business, approved in 3 business days, delivered as a printable PDF by email. The cancelled stamps on the old passport are not operationally relevant at KTI, SAI, or KOS.
Do I need to mention previous Cambodia visits when applying on a new passport?
No. The eVisa form has no field for prior Cambodia history under a different passport number and does not require you to declare it. Type the new passport details exactly as they appear in the machine-readable zone, apply, and treat the application as you would a first-time application. Cambodian MFAIC has no system view of the prior record under the old number.
I got married and my passport is in a new surname — what does the eVisa application look like?
A fresh application on the new passport, using the name exactly as it appears on the new passport's machine-readable zone. Same $80 USD (~$122 AUD) Tourist or $90 USD (~$137 AUD) Business fee, 3 business days, printable PDF by email. Carry the marriage certificate and a statutory declaration of name change in your carry-on for airline check-in scenarios where booking details still reference the maiden name.
I travel on a second Australian passport for business — does Cambodia accept it?
Yes. DFAT-issued second passports are valid Australian travel documents and Cambodia processes them like any other Australian passport. The eVisa is keyed to the second-passport number; carry the DFAT authorisation letter that links the two passports in case an airline flags the second-passport boarding pass. The Cambodia eVisa second passport guide for Australians has the full mechanics.
Can my biometrics still tie my new passport back to my old Cambodia visits?
Yes — Cambodian Immigration runs face-match and fingerprint biometrics on air arrivals at KTI, SAI, and KOS. The system can link your new-passport entry back to a prior visit on the old passport. For travellers with clean prior history, this surfaces nothing the officer cares about. For travellers with a prior unpaid overstay, deportation, or fraud flag, the biometric link is the moment Immigration brings it up — clear the prior issue before returning.
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