Can Americans Convert a Cambodia eVisa to a Long-Stay Extension In-Country?

Why the Tourist eVisa is a dead end past 30 days

The Tourist eVisa (Type-T) is built for a single, capped trip. It gives you 30 days of stay, single entry, on a visa valid for 3 months from issue. That is the whole envelope. There is no lever inside Cambodia that stretches it.

Two things make this firmer than a lot of travelers expect. First, the tourist auto-extension that some older blog posts and forum threads still mention ended in November 2025. If you read a 2024 guide telling you that you can grab a one-time 30-day extension on a tourist visa at an immigration office, that information is out of date and will strand you. Second, the 30-day cap is enforced on exit through the overstay penalty — $10 USD per day, payable in cash at the airport when you leave, from day one of the overstay. A few extra days is an irritation; a few extra weeks is real money and a mark that can complicate future applications.

Read the bottom three rows together and the picture is clear. The Tourist eVisa has no in-country future past 30 days. The Business eVisa is the only class that keeps working once you have landed. Everything in this guide flows from that one structural fact.

Already in Cambodia on a Tourist eVisa? The real path

Say you flew in on a Tourist eVisa for what you thought was a two-week trip, fell for Kampot or Siem Reap, and now want to stay three months. You cannot convert, and you cannot extend the Tourist eVisa. So what actually works?

The clean route is a "visa run" with a class change baked in: exit Cambodia before your 30 days run out, apply for a Business eVisa while you are out (it approves in 3 business days, so plan a few days outside the country), and re-enter on the new Business eVisa. From that point you are on the extendable class, and you can lodge a 1, 3, 6, or 12-month extension in-country through an immigration agent. This is not a loophole — it is simply how the system is designed to be used. Each entry is a fresh application, and you are free to choose a different class on the way back in.

1. 1
   Exit before day 30

   Leave Cambodia before your Tourist eVisa 30-day stay runs out so you never trigger the overstay penalty.

2. 2
   Apply for the Business eVisa

   While outside the country, lodge a fresh Business eVisa — $90 USD all-in, approved in 3 business days.

3. 3
   File the e-Arrival Card

   Submit a new e-Arrival Card for the return flight: 14 fields, $5 USD, within 7 days before you arrive.

4. 4
   Re-enter on the Business eVisa

   Fly back into Techo International Airport (KTI) and enter Cambodia on the new Business eVisa class.

5. 5
   Extend through an immigration agent

   Once in-country, lodge a 1, 3, 6, or 12-month extension on the Business eVisa via a Cambodian immigration agent.

Where do Americans typically exit to for this? The air option is easiest in 2026. A short hop to Bangkok, Singapore, Ho Chi Minh City, or Kuala Lumpur, a few days while the Business eVisa is approved, and a flight back into Phnom Penh's Techo International Airport (KTI). On the land side, the realistic crossings are into Vietnam at Bavet or into Laos at Tropaeng Kreal — all seven Thailand-Cambodia land borders have been closed since June 2025, so an overland hop to Thailand and back is not an option this year.

A word of caution on timing: do not leave the re-entry to the last day. Apply for the Business eVisa with a few business days of buffer before you exit, so the approval PDF is in your inbox by the time you are ready to fly back. And remember that re-entry is a brand-new air arrival, which means a brand-new e-Arrival Card before you land. If you would rather avoid the whole exit-and-return dance, the lesson most long-stay Americans take away is to start on the right class — our explainer on the EB visa extension for Americans walks through what the extendable path looks like end to end.

Do it right the first time: enter on the Business eVisa

The whole conversion problem disappears if you make one decision before you fly: if there is any realistic chance your trip runs past 30 days, enter Cambodia on the Business eVisa (Type-E). It is $90 USD all-in — a $10 difference from the Tourist eVisa — approved in 3 business days, and delivered as a printable PDF by email. The same short online form, the same documents, and it is the only class that lets you extend without ever leaving the country.

Here is the part that surprises Americans coming from heavier regional processes: the Business eVisa requires no extra paperwork to apply. No sponsor letter from a Cambodian company, no employment contract, no formal invitation, no return flight ticket, no hotel booking, no bank statement. The application pack is the same five items as the Tourist eVisa — US passport with 6 months validity and a blank page, a plain-white-background photo, a clear passport bio-page scan, a working email, and a payment method. You do not need to be on a payroll or have a business in Cambodia to use it. Sabbatical retirees, digital nomads, and long-stay travelers all enter on it.

Once you are in-country on the Business eVisa, the extension is straightforward. A Cambodian immigration agent in Phnom Penh or Siem Reap takes your passport, lodges the extension, and returns it stamped 7 to 14 days later. Four lengths are available — 1, 3, 6, and 12 months — and they are renewable, so you can stack them and run a full year or more on the same original Business eVisa. The 12-month extension is multi-entry, which matters if you plan to slip out to Bangkok or Singapore midway through a long stay. Start the paperwork at least 2 weeks before your initial 30 days expire so you never brush the overstay penalty.

On value: the 1-month extension carries the highest per-month rate, so it is poor value for anything longer than a few weeks. The 3-month and 6-month extensions are the sweet spots — the per-month rate drops sharply, and most long-stay Americans land in one of those two buckets. The 12-month extension is the cheapest per day, but only worth it if you genuinely plan to use most of the year.

Edge cases and the mistakes that cost Americans the most

A handful of situations come up again and again on the long-stay desk. Getting them right is the difference between a smooth year in Cambodia and an expensive scramble at the airport.

You overstayed the Tourist eVisa thinking you could fix it later

You cannot retroactively extend or convert a Tourist eVisa once you are over the 30 days. The overstay penalty of $10 USD per day accrues from day one and is collected in cash at the airport on exit. The fix is to leave, pay the penalty, and re-enter clean on a Business eVisa if you want to come back for a longer stretch. There is no in-country amnesty path that turns a tourist overstay into a long-stay visa.

You assumed the Business eVisa extension happens online

The upfront Business eVisa is online, but the in-country extension is not a self-service portal step. It runs through a Cambodian immigration agent who physically handles your passport. Budget for that — both the agent's turnaround time (7 to 14 days) and the fact that your passport is out of your hands during that window, which can clash with a planned side-trip out of the country.

You planned a Thailand land-border visa run

This was the classic move pre-2025: pop over to Thailand by road and come back. It does not work in 2026. All seven Thailand-Cambodia land borders have been closed since June 2025. If you need to exit and re-enter for a class change, plan an air route or a Vietnam/Laos land crossing instead.

The last and most common mistake is simply guessing the visa class. If you are weighing whether a 30-day cap will hold for your trip, do the maths honestly before you fly — and if the answer is "maybe not," start on the Business eVisa. Our decision guide on which class to enter on for a long stay maps real American trip shapes to the right visa, so you do not end up planning an exit run you never needed.

Putting it together before you book

So, can Americans convert a Cambodia eVisa to a long-stay extension in-country? Not from the Tourist eVisa — and not by changing class once you have landed. The Tourist eVisa is a hard 30 days. The Business eVisa is the one that extends, in 1, 3, 6, or 12-month blocks, arranged in-country through an immigration agent. If you are already here on the wrong class, the fix is an exit and a fresh Business eVisa re-entry. If you are still planning, the fix is to choose the Business eVisa up front — $90 USD all-in, approved in 3 business days, delivered as a printable PDF by email. The Type-T vs Type-E breakdown lays the two classes side by side if you want the full comparison.

One reminder before you book anything. Every air arrival in Cambodia — including a re-entry on a fresh Business eVisa — needs its own e-Arrival Card, filed within 7 days before the flight. Long-stay Americans who plan the visa and the e-Arrival together avoid the most common 2026 trip-stopper at the kiosk. The EB visa extension explainer walks through the in-country side in detail if you want the full extension picture.

Next steps and related reading for US citizens: apply for your Cambodia eVisa when you are ready to lodge, bookmark the long-stay hub as the single canonical reference, compare the two classes with the Type-T vs Type-E guide, and read the converting tourist to business visa explainer if you are still deciding which class to enter on.