Two honest products for two different trip shapes. Multi-entry is for in-and-out travel with short stays; the 1-year extension is for one long continuous stay. The cost gap is ~$120 AUD but the choice comes down to whether you plan to leave Cambodia.

Multi-entry if you plan to leave Cambodia at least once during the year; 1-year extension if you plan to stay continuously without leaving. The multi-entry 12-month Business eVisa costs roughly $220 USD (~$336 AUD) upfront, gives you twelve months of in-and-out travel, but caps each individual stay at 30 days. The 1-year extension path costs roughly $300 USD (~$457 AUD) total — a $90 USD (~$137 AUD) single-entry Business eVisa plus the in-country extension fee — and gives you one twelve-month continuous stay, but any exit voids the extension and forces a fresh application to come back. The AUD gap is ~$120 AUD, which is small enough that the right answer is mostly about your trip shape rather than the dollar figure.
This guide walks through the trade-off in detail. If you have not yet looked at the upfront multi-entry application, the Cambodia multi-entry application process for Australians has the field-by-field walkthrough, and the Cambodia 12-month visa extension for Australians covers the in-country extension flow if that turns out to be your fit. The smoothest way to get sorted before your flight is to Cambodia visa for Australians on our site.
The wider Cambodia visa cost guide for Australians has the full pricing landscape including single-entry options, the Tourist class, and the e-Arrival fee that every air arrival pays on each entry. If you're going through the multi-entry vs extension decision, you'll also want the broader Cambodia multi-entry guide for context on where these two products sit relative to repeat single-entry Tourist eVisas.

If retiree planning is your shape, the Cambodia retiree long-stay guide for Australians covers the wider lifestyle picture, and the Cambodia first-trip planning checklist for Australians covers the first 30-day stay setup if you've never been before. The trade-off question is mostly answered by whether you can predict your travel pattern across the year.

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首次赴柬埔寨旅行?以下是面向美国人的诚实首次旅客清单——签证、美元货币特点、安全现状、疫苗接种、寺庙着装规范,以及2026年新机场的实际抵达体验。
自2025年6月以来,泰国与柬埔寨之间的全部七个陆地边境已关闭,因此在2026年,美国人从泰国进入柬埔寨的唯一方式是乘坐飞机。以下是曼谷至暹粒和曼谷至金边航线的工作方式、登机前所需的柬埔寨电子签证,以及为何旧的波贝陆路计划已不再可行。
三种方式跨越柬埔寨首都与吴哥窟之间的195英里:15美元的特快巴士、45分钟的航班或缓慢的河流渡轮。以下是每种方式对美国旅行者的实际费用、所需时间以及哪种适合您的行程。
Two helpful frames for the decision. First, ask whether a single unplanned flight home — sick parent, urgent meeting, child's surgery — would break your plan. If yes, lean multi-entry. Second, ask whether you genuinely need a continuous stay longer than 30 days, or whether you could space the stays into 25-30 day blocks with short trips out. If the spacing works, multi-entry is fine; if you need an unbroken stretch, the extension is the only path. The Cambodia visa extensions vs fresh eVisa guide for Australians has the wider context on the cost-of-switching question.

Multi-entry holders can still do Bangkok weekends — flights only.
阅读2026年最新动态 →The classic mid-year out-and-back trip for a Cambodia multi-entry holder.
Compare the combo →Overland re-entry resets the 30-day stay clock without flights.
Plan the Laos route →A quick Singapore weekend is the cleanest mid-year reset.
Sort the stopover →Bali mid-engagement is a common Aussie multi-entry use case.
Compare the two →The e-Arrival Card is mandatory on every air arrival into Cambodia regardless of which product you bought, and that includes every re-entry on the multi-entry product. The Cambodia e-Arrival 14-fields walkthrough for Australians covers the form, and the Cambodia returning traveller faster flow guide covers what changes for an Aussie on entry two and beyond.

Short version for Aussies: if you plan to leave Cambodia at least once during the twelve months, buy the multi-entry 12-month Business eVisa at $220 USD (~$336 AUD) all-in. If you plan to stay continuously without leaving, buy the single-entry Business eVisa at $90 USD (~$137 AUD) and extend inside Cambodia for a total of around $300 USD (~$457 AUD). The Cambodia Business visa for Australians anchor covers the underlying Business product, and the Cambodia business visa extensions guide for Australians has the in-country extension mechanics if that route fits.
If you're still unsure, default to multi-entry — leaving Cambodia does not break it, and an unexpected need to fly home or to a regional meeting will not cost you the rest of your year. The Cambodia first-trip planning checklist for Australians is the right next read if this is your first Cambodia trip, and the Do Australians need a Cambodia visa pillar covers the underlying eligibility for Aussie passport holders, permanent residents, and dual citizens.
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 extending stay for quick answers, and use our glossary of Cambodia visa terms to decode any acronym in this guide; for a structured side-by-side evisa vs visa on arrival comparison, see the dedicated comparison page.