Visa & Passport
A passport and visa are required. Tourists and business travelers may purchase a Cambodianvisa valid for one month at the airports in Phnom Penh and Siem Reap. Both require a passport-sized photograph. A departure tax is charged on all domestic and international flights. Airport Tax (Passenger Service Charges)

For International Travel Foreigner: Adult US$25 Under 12 years old US$13 Under 2 years old FREE	Cambodian: Adult US$18 Under 12 years old US$10 Under 2 years old FREE
For Domestic Travel Foreigner: Adult US$6	Cambodian: Adult US$5 The entry points to obtain Visa Airports: Phnom Penh International Airport Siem Reap International Airport

Cambodia-Vietnam border:
-Bavet International Check Point (Svay Rieng Province)
-Kha Orm Sam Nor International Check Point (Kandal Province)
-Koh Rohka International Check Point (Prey Veng Province)
-Banteay Chakrey International Check Point (Preyveng Province)
-Tropeang Sre International Check Point (Kratie Province)
-Prek Chak International Check Point (Kampot Province)
-Phnom Den International Check Point (Takeo Province)
-Oyadav International Check Point (Rattankiri Province)
-Tropieng Phlong International Check Point (Kampong Cham Province) 

Cambodia-Thailand border:
-Cham Yeam International Check Point (Koh Kong Province)
-Poi Pet International Check Point (Banteay Meanchey Province)
-Osmach International Check Point (Odor Meanchey Province)
-Sihanoukville International Check Point (Sihanoukville Province)
-Choam Sanguam International Check Point (Banteay Meanchey Province)
-Prum International Check Point (Pailin Province)
-Doung International Check Point (Battambang Province)
-Preah Vihear International Check Point (Preah Vihear Province) 

Cambodia-Laos border:
-Dong Krolar International Check Point (Steung Treng Province)
-Tropieng Kreal International Check Point (Stung Treng Province)

Application for Visas and Fee
It is required for the visa applicants to submit passport, application forms, a recent passport-style color photograph, and such other documents as determined by the status of stay.
-Single entry visa fee for tourist: US$ 20
-Single entry visa fee for business: US$ 25 

Visa Type
Tourist & Business Visas:
Visitors from countries not under Visa Exemption Agreements must apply for a Tourists or business visa valid for one month at the points of entry.
Siem Reap International Airport 

Visa K:
Visa K can be issued to a Cambodian national entering the Kingdom on a foreign passport. (The applicant has to provide well-documented evidence, such as proof that one’s parents were Cambodian).

Visa Exemption:
The nationals of the Philippines and Malaysia do not need a tourist visa and may stay in Cambodia for 21 and 30 days respectively.

Visa extension
Tourist & Business Visas:The tourist (T) and business (E) visas can be extended at the Immigration Department, NationalPolice. The Diplomatic (A), Official (B) and Courtesy (C) visas can be extended at the Consular Department, Ministry of Foreign Affairs. A tourist visa can be extended only once for up to one month (single entry).

A business visa can be extended for:
-One month (Single entry)
-Three months (Multiple entry)
-Six months (Multiple entry)
-One year (Multiple entry)
-Overstayers will be fined US$ 5 per day.