Almost every Cambodia eVisa correction we see from US travelers traces back to the same eight mistakes. None of them are hard to avoid once you know the list. Here is what they are and how to get the form right the first time.

The most common mistakes are: entering your name or passport number differently from your bio page, uploading a photo that gets auto-flagged (smile, glasses, off-white wall, low resolution), applying with a passport under 6 months of validity or with no blank page, leaving the e-Arrival card until the airport, and applying too close to departure. Each one is avoidable. Copy your details off the passport bio page exactly, take a clean photo against a white wall, check your passport expiry and blank pages before you start, file the separate e-Arrival card within 7 days of arrival, and apply at least a week out so the 3-business-day clock has room.
Below are the eight, in roughly the order they cost people time, with the exact fix for each. If you would rather follow the form screen by screen as you go, our step-by-step Cambodia eVisa guide for Americans walks every field in order. When you are ready, you can apply now and keep this list open in another tab.
Enter your surname (family name) and given names exactly as the bio page prints them, in the boxes the form labels for each. If your passport shows a middle name, include it in the given-names field; if it does not, leave it out. The errors we see most from Americans are splitting a two-part given name into the wrong boxes, adding a "Jr." or "III" the passport omits, and dropping a hyphen or apostrophe the passport keeps. If your name mismatches, our guide to fixing a Cambodia eVisa name mismatch with your passport walks through exactly how to correct it.
Americans default to month-day-year, and that habit causes the most date errors on the form — entering 06/12 when the field wants the day first, or putting the issue date where the expiry date belongs. Read the field label, match the format it asks for, and confirm the expiry date sits at least 6 months past your arrival. If you have already submitted with a wrong date or a typo anywhere, do not start over — our guide on how to fix wrong information on a Cambodia eVisa covers what is correctable and how.

Save the photo as a JPEG under 2 MB, ideally 600 by 600 pixels or larger. Use the rear camera, not the selfie camera, and have someone else press the shutter — arm-length selfies distort facial proportions and the validator catches that. Do not apply filters or beauty smoothing; the checker rejects heavily edited images. The full specification, with dimensions and a take-it-at-home routine, is in our Cambodia eVisa photo requirements guide for Americans.
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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。

Check both before you spend a cent on the application. Routine passport renewals through the State Department run several weeks, so if your book is getting old, that is the first thing to sort. Our Cambodia eVisa required documents checklist for US citizens lists the validity and blank-page rules alongside everything else you need on hand, so nothing about your passport surprises you at the gate.

Plan for both from the start. The visa application happens now; the e-Arrival is filed in the week before you fly, and it is verified through us for $5 USD. Our guide on what information you need for the Cambodia e-Arrival card walks the 14 fields in order so you can have everything ready when your 7-day window opens.

A declined card is the other late-stage snag. It is almost always your bank flagging an unfamiliar online charge rather than anything wrong with the application — a quick approval through your banking app and a retry usually clears it, and the charge is in US dollars so there is no currency math. If your file does get flagged after you pay, resubmission is free and the clock keeps running once you reply. If you want to see what triggers an outright denial rather than a fixable correction, our guide to why Cambodia eVisa applications get rejected lays it out.
Classic Bangkok-then-Angkor pairing — but all 7 land borders are closed.
阅读2026年最新动态 →The other half of the Indochina loop, an easy add-on for US travelers.
See the combo guide →The quiet third stop most Americans overlook on the loop.
Plan the Laos route →Where a lot of US itineraries connect on the way through.
Sort the stopover →Bali or Cambodia for the next trip — or stitch both together.
Compare the two →One last reminder: the visa is one form and the e-Arrival card is a different form, and both are mandatory for every air arrival in 2026. The visa application happens now; the e-Arrival is filed within 7 days before you fly. Americans who plan for both at the start avoid the most common trip-stopper at the kiosk. The Cambodia visa guide for United States citizens stays the single canonical reference for everything around the trip.
Next steps and related reading for Americans: apply for your Cambodia eVisa when you are ready to lodge, follow the step-by-step application guide field by field, run through the required documents checklist before you upload, and read why applications get rejected so a fixable slip never becomes a denial.