The applicant must possess a passport with at least six-month validity to enter the Kingdom of Thailand.
Citizen from following countries can enter Thailand for 30 days without a Visa:
Australia, Austria, Belgium, Brazil, Bahrain, Brunei Darussalam, Canada, Denmark, Finland, France, Germany, Greece, Hong Kong SAR, Iceland, Indonesia, Ireland, Israel, Italy, Japan, Republic of Korea, Kuwait, Luxembourg, Malaysia, Monaco, Netherlands, New Zealand, Norway, Oman, Peru, Philippines, Portugal, Qatar, Singapore, Spain, South Africa, Sweden, Switzerland, Turkey, United Arab Emirates, United Kingdom, United States of America and Vietnam.
Citizen and passport holders from following countries may apply for visas at the immigration checkpoints Thailand for the purpose of tourism for the period of not exceeding 15 days:
Bhutan, China, Cyprus, Czech Republic, Estonia, Hungary, India, Kazakhstan, Latvia, Liechtenstein, Lithuania, Maldives, Mauritius, Oman, Poland, Russia, Saudi Arabia, Slovakia, Slovenia, Taiwan, and Ukraine.
Anyone who is not listed or plans to stay longer in the Kingdom must apply for a valid tourist visa before traveling to Thailand from a Royal Thai Embassy or a Royal Thai Consulate-General. As visa regulation can changed please always check for the latest update under: http://www.mfa.go.th
Exports of Buddha images (except small ones carried on person), antiques and genuine works of art require export license from the Fine Arts Department. The shop you deal with can provide such service for you.
Any amount of traveler’s cheques or drafts may be imported, but cash in excess of US$ 10.00 must be declared. Not more than 50.000THB in cash may be exported. It is prohibited by law to bring any of the following items into Thailand: Drugs or any kin of narcotics, pornographic material in any kind, firearms and certain species of fruits, vegetables and plants.
For more information regarding customs regulation please contact above government WebPage's.