Visitors to Thailand who hold valid passports or travelling documents issued by any country included in an officially issued list of eligible countries are permitted one-month visa-free visits. This means that you can book your hotel in Bangkok for a few weeks without running into complications. If planning a longer stay, a Tourist Visa valid for 60 days must be obtained from a Royal Thai Embassy or Consulate abroad. Visa extensions can be applied for at the Immigration Department in Bangkok.
List of eligible countries
Argentina, *Brazil, Canada, Chile, Cyprus, Mexico, *Peru, U.S.A.
Bahrain, Brunei, Hong Kong,Indonesia, Israel, Japan, Kuwait, Malaysia, Myanmar, Oman, Philippines, Qatar, *Republic of Korea, Saudi Arabia, Singapore, Turkey, United Arab Emirates
Australia, Fiji, New Zealand, Papua New Guinea, Vanuatu, Western Samoa.
Djibouti, Egypt, Kenya, Mauritania, Morocco, Senegal, South Africa, Tunisia, Yemen.
Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Slovene, Spain, Sweden, Switzerland, U.K.
* Persons meeting the above conditions are exempted from a visa and are permitted to remain in the Kingdom for a period not exceeding 30 days, except for the nationals of the Republic of Korea, Brazil, and Peru who are permitted to stay in Thailand for a maximum of 90 days from the day of entry.