Cambodia visa on arrival is cash-only USD — no card terminal at the booth, no friendly ATM beside it. Here's the honest Aussie guide to sourcing $40–$50 USD in clean small notes before you board, and what the AUD-to-USD spread actually costs in 2026.

Cambodia visa on arrival is cash-only USD at all three airports (KTI, SAI, KOS) because the booth has no card terminal and no ATM directly beside it. Australian dollars are never accepted, and the airport ATM after Immigration dispenses Khmer riel rather than USD. The safest plan for Aussies is to bring $40–$50 USD in clean small notes ($5, $10 and $20 denominations, post-2006, no tears or ink marks) sourced before flying. A pre-ordered bank cash collection from ANZ, CBA, Westpac or NAB sits at roughly 2.5–3.5% over the spot AUD/USD rate in 2026. Travelex and airport currency counters run 5–7% over. With AUD/USD trading around 1.52–1.55 through 2026, a $40 USD VoA budget costs around $61–$65 AUD. The eVisa at $80 USD (~$122 AUD) all-in sidesteps the USD-cash problem entirely.
Every airport in Cambodia bills in US dollars at the visa-on-arrival booth, and every Aussie who turns up without cash discovers the rule the hard way. The booth itself is unforgiving — no card terminal, no contactless, no AUD, no Khmer riel. The ATMs on the Cambodian side of Immigration are designed to dispense Khmer riel for taxis and dinner, not USD for visa fees. The cash-USD trap is the single most common reason Australian travellers end up annoyed at the VoA queue.
The fix is genuinely simple if you sort it in Australia before you board: walk into your bank or a Travelex branch a week out, ask for $40 USD in $5, $10 and $20 notes, and put them in a clean envelope inside your carry-on. The catch is that nobody tells you this until you are already at the airport in Phnom Penh wondering why the friendly ATM beside you is spitting riel. This guide walks through where to source clean small USD in Australia, what the AUD-to-USD margin actually costs in 2026, and why the on-arrival ATM is not the fix some Aussies assume it is.
If you are still weighing visa on arrival against the eVisa, the airport-by-airport reliability guide and the head-to-head comparison cover that decision in more depth. If you have already chosen VoA, this guide is the cash-prep walkthrough that should sit beside your passport. For the umbrella view across cost, processing time, and documents, see the Cambodia visa for Australians hub.
The Cambodian VoA booth has run on US dollars for over twenty years. The country itself uses USD alongside the Khmer riel for almost every higher-value transaction, and Immigration has standardised on USD because it keeps the booth process consistent across all three airports and both land borders. What changes in 2026 is the stricter enforcement of note quality. The officer at the booth is now expected to refuse any note with visible damage, ink, fold creases through the serial number, or tears at the edge — and Aussies in 2026 are being sent back to the ATM more often than they used to.
A $20 USD note with a small ink dot near the corner has been refused at the SAI booth in our most recent visit. Cambodian Immigration officers are following a stricter note-quality rubric in 2026 than they were even two years ago, and the booth supervisor will side with the officer if you push back. The booth does not give USD change either — only Khmer riel — so handing over a $50 for the $30 fee leaves you with around 80,000 riel (~$20 USD) that you did not plan for. Bringing $5, $10 and $20 notes in a clean envelope is the cleanest way to avoid both issues.

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Ya sea que necesites una Tarjeta de Llegada Electrónica de Camboya (y una eVisa de Camboya) durante una escala en el Aeropuerto Internacional Techo (KTI) o Siem Reap (SAI) depende de una pregunta: ¿cruzarás la línea de inmigración? Aquí está el reglamento exacto de 2026 para transferencias aéreas, boletos separados y saltos domésticos.
Las reglas fronterizas de Camboya cambiaron significativamente hacia 2026: Phnom Penh abrió el Aeropuerto Internacional Techo (KTI), los sellos de papel fueron reemplazados por el V-Pass digital, y todas las fronteras terrestres entre Tailandia y Camboya permanecen cerradas. Aquí está la lista completa de entrada para viajeros canadienses en 2026.
Los ciudadanos británicos que viajan a Camboya en 2026 requieren tanto una visa válida de Camboya como una Tarjeta de Entrada Digital e-Arrival (CeA). Aquí está cómo los titulares de pasaporte del Reino Unido pueden elegir entre la eVisa Turística (Clase T), la eVisa Ordinaria (Clase E) y la Visa a la Llegada en el Aeropuerto Techo (KTI) o Siem Reap (SAI).
Sourcing $40–$50 USD in Australia is a five-minute job if you start a week before flying. The trick is to pre-order through your home bank rather than walking up to a counter on the day. Pre-orders use the bank's wholesale AUD/USD rate, while walk-up counters and airport kiosks layer a retail margin on top. The difference is real money on a $40 USD purchase — you pay roughly $61 AUD with a pre-order and $66–$68 AUD with an airport walk-up.
Travelex branches in CBDs and shopping centres typically charge 4-5% over spot. Travelex airport counters at Sydney, Melbourne, Brisbane and Perth charge 5-7% over spot — sometimes more during peak holiday weeks. The 'no commission' sign at the airport kiosk is technically true and operationally meaningless; the margin is built into the buy rate, not added as a separate fee. A $40 USD purchase at an airport Travelex in 2026 costs around $66-$68 AUD. The same purchase pre-ordered through CBA a week earlier costs around $61 AUD.
For a deeper read on the AUD-to-USD margin and how it shows up across the whole Cambodia trip — not just the VoA — the dedicated AUD conversion guide covers card statements, dynamic-currency-conversion traps, and what Aussies actually pay across a 14-day itinerary.

The Australian dollar has traded in a 1.52-1.55 band against the US dollar through the first half of 2026, with the mid-point around 1.535. That means each $1 USD costs roughly $1.53-$1.55 AUD before any retail margin. For a $40 USD VoA budget — enough for the $30 (~$46 AUD) fee plus a buffer — the table below shows what you actually pay across the common sourcing channels.
The honest takeaway: the difference between the best and worst USD-cash channels is around $5-7 AUD on a $40 purchase. That is not enormous in isolation, but it is the gap between a relaxed pre-flight stop at your branch and a rushed airport-kiosk queue with a worse rate. The bigger story is the 30-60 minute VoA queue on arrival — which the eVisa skips entirely — rather than the FX margin itself.

The Cambodia eVisa is billed in AUD at checkout — Visa, Mastercard, Apple Pay, Google Pay and PayPal all work — at a fixed $80 USD (~$122 AUD) all-in. No USD-cash sourcing, no airport ATM round trip, no note-quality refusals. Approved in 3–5 days, delivered as a printable PDF by email, and walking straight to the e-gate lane at KTI, SAI and KOS on arrival.
The headline price gap — $30 (~$46 AUD) versus $80 (~$122 AUD) — is real, but the operational gap closes faster than most Aussies expect. Pre-ordering USD costs roughly $63-64 AUD at a bank, the booth queue adds 30-60 minutes after a long flight, and the on-arrival photo and unofficial-tip layers add a further $5-10 USD on a bad day. The eVisa is also checked end-to-end before it reaches Immigration, which means a free resubmission if any field needs a correction rather than a queue reset at the booth.
If you are landing within 72 hours and the eVisa window is too tight, the cash-USD prep above is the right call. Otherwise the eVisa application is a faster route once the FX, queue, and photo costs are added up honestly. The Australian application walkthrough covers every field on the eVisa form, and the broader country guide covers eligibility.

Run this checklist a week before flying and the VoA booth becomes a non-issue. None of the steps takes more than ten minutes, and the worst case is one walk-in trip to your bank branch.
Próximos pasos y lecturas relacionadas para australianos: solicite su eVisa de Cambodia cuando esté listo para presentar su solicitud, marque nuestro centro de visas de Cambodia para ciudadanos australianos como la única referencia canónica, lea rápidamente las preguntas frecuentes sobre el costo de la visa de Cambodia para obtener respuestas rápidas, y use nuestro glosario de términos de visa de Cambodia para descifrar cualquier acrónimo en esta guía.
Vuela vía KTI/SAI/KOS en lugar de por tierra desde Bangkok.
Lea la actualización de 2026 →USD cash still needed at Bavet VoA if you go that route.
Ver la guía de combinación →The quietest USD-cash VoA route into Cambodia.
Planifique la ruta por Laos →Donde la mayoría de los australianos se detienen de camino.
Organiza la escala →¿Bali o Cambodia para tu próximo viaje — o ambos?
Compara los dos →