All foreigners visiting Indonesia are required to have a visa. The cost and validity of the visa depends on your nationality. Generally, visas on arrival are issued for 30 days and are not extendable.  You can also apply for a 60-day visa in advance from your home country. These are also not extendable. These visas generally take at least 5 working days to process and may have specific requirements, so apply well in advance.

A 30-day visa on arrival is issued at no charge to passport holders of the following countries:

The official entry requirements for the issuance of a visa-on arrival are:
1. Passport must be from one of the eleven countries listed above.
2. Passport must be valid for a minimum of 6 (six) months from the date of entry into Indonesia.
3. Onward or return tickets are compulsory.
4. Visitors must enter and exit through one of the 15 airports, 21 seaports or 1 overland border post officially approved as an “international gateway” by the Indonesian Immigration department.

Visitors from the following counties may get 7-day visa for US$10, or a 30-day visa for US$25 (Updated May 2007):

Algeria
Argentina
Australia
Austria
Bahrain
Belgium
Brazil
Bulgaria
Cambodia
Canada
Cyprus
Czech Republic
Denmark
Egypt
Estonia
Fiji
Finland
France
Germany
Greece
Hungary

Iceland
India
Iran
Ireland
Italy
Japan
Kuwait
Laos
Latvia
Libya
Liechtenstein
Lithuania
Luxembourg
Maldives
Malta
Mexico
Monaco
New Zealand
Norway
Oman
Panama

People’s Republic of China
Poland
Portugal
Qatar
Romania
Russia
Saudi Arabia
Slovakia
Slovenia
South Africa
South Korea
Spain
Suriname
Switzerland
Sweden
Taiwan
The Netherlands
Tunisia
United Arab Emirates
United Kingdom
United States of America

The official entry requirements for the issuance of a visa-on arrival are:
1. Passport must be from one of the countries listed above.
2. Passport must be valid for a minimum of 6 (six) months from the date of entry into Indonesia.
3. Payment of US$10 or US$25 must be paid at the gateway, depending on the length of visa required.
4. Onward or return tickets are compulsory.
5. Visitors must enter and exit through one of the 15 airports or 21 seaports officially approved as an “international gateway” by the Indonesian Immigration department.

Visas-on-arrival are non-extendable and non-convertible to another class of visa. Overstays are charged US$20 per day for over stays up to 60 days. Overstay violations over 60 days are liable to 5 years imprisonment or a fine of Rp. 25 million.

All other Nationalities must get a visa in advance from their local Indonesian Embassy, but should check to see if their country has been added to the visa on arrival list.