Cambodia Visa Overstay Fines for US Travelers: Costs and How to Avoid Them
A Cambodia visa overstay costs US travelers $10 per day, charged in cash at the airport when you leave. Here is exactly how the per-day fine works, how it escalates past the cheap zone, and how to make sure you never pay a cent of it in 2026.
How much is the Cambodia visa overstay fine per day for US citizens?
Cambodia charges US citizens a visa overstay fine of $10 USD per day, collected in cash at the airport Immigration counter on the day you leave. A 3-day overstay costs $30, a week costs $70, and the meter keeps running for every day past your 30-day stay. This per-day fee applies to short overstays. Once an overstay runs long — roughly past 30 days — Cambodian Immigration can stop treating it as a fee and start treating it as an immigration offense, which opens the door to detention, deportation at your own cost, and a ban on returning. Your 30-day stay is counted from the day you enter, single entry, and the tourist auto-extension ended in November 2025, so the only legal way to stay longer is a Business eVisa you can extend in-country. The reliable way to pay nothing is to count your days from the entry stamp and leave on time.
Punti chiave
- Cambodia charges a visa overstay fine of $10 USD per day, paid in cash at the airport Immigration counter when you depart — not at the start of your trip.
- A short overstay is treated as a fee; a long overstay is treated as an immigration offense. Past roughly 30 days the math stops being a number on a receipt and starts risking detention, deportation, and a re-entry ban.
- Your 30-day clock starts the day you enter Cambodia, not the day your eVisa was issued. The eVisa is valid for 3 months from issue, but the stay itself is a hard 30 days, single entry.
- The tourist auto-extension ended in November 2025, so a Tourist eVisa is now a firm 30-day ceiling. The only legal way to stay longer is a Business eVisa, which can be extended from inside Cambodia.
- The cheapest overstay fine is the one you never pay. Counting your days from the entry stamp, setting a phone reminder for day 28, and choosing the right visa up front costs nothing and removes the risk entirely.
The per-day fine, in one number
Below you will find the exact per-day cost, how the fine escalates from a fee into a serious problem, where your 30-day clock actually starts, and the cheapest move of all — never triggering the fine in the first place. The short version: count your days from the entry stamp, not the eVisa issue date. If you are still planning the trip, our guide to how long US citizens can stay in Cambodia sets the baseline this whole article is built on, and you can always apply online when you are ready.
How the $10-per-day overstay fine actually works
You pay in cash, at the airport, on the way out
When the fine stops being a fee and becomes a problem
For US citizens, a serious overstay also pulls in the US Embassy in Phnom Penh, which can help with a replacement passport or welfare contact but cannot waive a Cambodian fine, reverse a deportation, or lift a re-entry ban — those are entirely Cambodia's call. The practical takeaway is that a short overstay is a cash inconvenience and a long overstay is a genuine travel emergency, so the moment you realize you might run long, the right move is to fix your stay legally rather than let the days accumulate. If your trip is open-ended, our guide on whether you can still extend a Cambodia tourist visa explains why the answer changed in late 2025.
Where your 30-day clock actually starts
The number that matters for overstay purposes is the entry stamp in your passport. Count 30 days from that stamp and that is your last legal day. Do not count from your eVisa email, your flight booking, or the day you applied. Because the eVisa is single entry, there is no re-entry buffer and no grace period built into the stay — day 31 is an overstay even if your eVisa technically still shows months of validity left. Our breakdown of single-entry versus multiple-entry Cambodia visas for Americans explains why that single-entry rule is the trap that catches the most travelers.
Domande frequenti
How much is the Cambodia visa overstay fine per day for US citizens?
Cambodia charges $10 USD per day for a visa overstay, collected in cash at the airport Immigration counter when you depart. A 3-day overstay costs $30, a week costs $70, and the charge keeps adding $10 for each calendar day past your 30-day stay. For a short overstay this is a routine fee you settle at the counter; for a long overstay it can become an immigration offense with far more serious consequences.
When and how do I pay a Cambodia overstay fine?
You pay in US dollars in cash at the Immigration counter at the airport, on the day you leave Cambodia. There is no online portal and no card terminal for the overstay fine. The officer checks your entry stamp against your departure date, calculates the days over, and collects the fee before clearing you to board, so have the cash ready if you know you have run over.
What happens if I overstay my Cambodia visa by a long time?
A long overstay — in practice past roughly 30 days — can stop being a simple fee and become an immigration offense. That can mean detention while your case is processed, deportation at your own expense, and a ban on returning to Cambodia for a period of years. There is no published bright line, and the longer you stay the more an officer can escalate, so a long overstay is a genuine travel emergency, not a budget line.
Does my 30-day stay start when my eVisa is issued or when I arrive?
When you arrive. The eVisa is valid for 3 months from issue, which is your window to enter Cambodia, but the 30-day stay starts the day you actually enter and get your passport stamped. Overstay fines count against that 30-day stay, not the 3-month validity. Count 30 days from your entry stamp to find your last legal day — counting from the eVisa email is the most common way Americans overstay by accident.
Can I extend my Cambodia visa to avoid an overstay fine?
Only on a Business eVisa. The tourist auto-extension ended in November 2025, so a Tourist eVisa is a firm 30-day ceiling that cannot be extended — when it ends, you leave. A Business eVisa can be extended from inside Cambodia for 1, 3, 6, or 12 months through an immigration agent. If your trip might run long, choosing the Business eVisa up front is far cheaper and calmer than risking an overstay.
Can I cross a land border to reset my Cambodia stay?
No. All seven Thailand-Cambodia land borders have been closed since June 2025, so the old overland-hop trick is not available. Both Cambodia eVisa types are single entry anyway, which means leaving and re-entering ends the visa rather than resetting your stay — you would need a fresh eVisa to come back. There is no border run that buys you extra days.
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