Cambodia eVisa rejections are almost never about you — they are about the file. Photo auto-flags, a name that does not match the passport, a glare-blown scan. Here is every cause US applicants hit, and the exact fix for each.

Cambodia eVisa applications are rarely rejected for who you are — they are flagged for what is in the file. The top causes for US applicants are photo problems (a smile, glasses, an off-white wall, or shadows behind the head), a name that does not match the passport machine-readable zone exactly, a passport scan with glare or a cropped corner, a mistyped passport number or date of birth, and a passport with under 6 months of validity. Every one of these is correctable. A flagged file is not a forfeited fee — you get free resubmission, and once you re-upload the fix, approval still lands inside 3 business days.
This guide walks through every reason a US application actually gets flagged, ranked by how often we see it, with the exact fix for each. It overlaps closely with the broader list of application mistakes Americans make, but here the focus is narrower: the specific data points Cambodian Immigration checks, why they fail, and how to clear them on the first resubmission. When your file is clean, you can apply in a few minutes and let the approval land in your inbox.
The fix for almost all of these is the same: a fresh photo against a plain white wall, in daylight, no glasses, neutral face, taken on your phone’s rear camera and saved as a JPEG. Our full Cambodia eVisa photo requirements for Americans walk through the exact size, background, and lighting setup, and the at-home routine that produces a compliant headshot in under two minutes. If your photo was the thing that got flagged, that guide is the one to read before you re-upload.

Name mismatches are common enough that we wrote a dedicated walkthrough for them. If your file was held over a name field, our guide to passport name mismatches for US citizens
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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。


If you want the full set of inputs the form asks for, laid out so you can check each one before submitting, our Cambodia eVisa documents required for Americans guide lists the five items and what each must look like. Confirming the data against that checklist is the most reliable way to clear the validator on the first pass.

In the rare case where a file truly cannot be approved — a passport too short-dated to use at all, for example — that is a different conversation from a routine flag, and our note on refunds for rejected US applications explains where you stand. For the ordinary case, though, a flag is a fix, not a refund question. Get the correction right and the eVisa lands as a printable PDF in your inbox, backed by US-timezone support if you get stuck on what the email is asking for.
A popular pairing for Americans — but all 7 land borders into Cambodia are closed.
Check Cambodia entry rules →The classic Indochina loop. Americans need a separate Vietnam eVisa.
See the entry points guide →The quieter third stop on the regional route for US travelers.
Confirm your documents →Where many Americans connect on the way through to Phnom Penh.
Plan the connection →Your destination — get the photo, name, and scan clean, then apply.
Start your eVisa →Next steps and related reading for Americans: apply for your Cambodia eVisa once your photo, name, and scan are clean, read the photo requirements for Americans before you upload the headshot, check the documents required for Americans so every field matches your passport, and bookmark our Cambodia visa for United States citizens hub as the single canonical reference.