The 36 countries that require a VOA are listed below:
Argentina - Australia - Austria - Belgium - Brazil - Canada - China - Denmark - Egypt - Finland - France - Germany - Hungary - India - Ireland - Italy - Japan - Kuwait - Luxembourg - Maldives - New Zealand - Norway - Oman - Poland - Portugal - Qatar - Russia - Saudi Arabia - South Africa - South Korea - Spain - Switzerland - Taiwan Territory - UAE - United Kingdom - USA

It is also worth remembering that a Rp.150,000 exit tax is payable on departure and that passports must be valid for at least 6 months on arrival.