List of countries NOT requiring visa: (TOURIST VISA EXEMPTION)
Passport holders from 48 countries and 1 special administrative region - Hong Kong SAR - are not required to obtain a visa when entering Thailand for tourism purpose and will be permitted to stay in Thailand for a period of not exceeding 30 days on each visit.
If such foreigners enter Thailand at the immigration checkpoints which border neighboring countries, they will be allowed to stay for 15 days each time, except 1) Malaysian nationals who cross the borderline from Malaysia , 2) nationals of G7 contries : USA, UK, Canada, France, Germany, Italy and Japan, whose granted period of stay will not exceed 30 days each time.
Foreigners entering Thailand under the Tourist Visa Exemption category must possess adequate finances for the duration of stay in Thailand (i.e., cash 10,000 Baht per person and 20,000 Baht per family).
*Tourists who enter Thailand without visa are required to possess a passport with at least six-month validity and round trip ticket.