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Foreigners who wish to work, conduct a business or undertake investment activities in Thailand must apply for a Non-Immigrant Visa at the Royal Thai Embassies or Royal Thai Consulates-General.

The Non-Immigrant Visa Category “B” (Business Visa) is issued to applicants who wish to enter the Kingdom to work or to conduct business.

The holder of this type of visa is entitled to stay in Thailand for a maximum period of 90 days. Afterwards, it's required to apply for a one year extension of stay at the Office of the Immigration Bureau in Thailand.


The retirement visa (non-immigrant O-A visa) is available for foreigners 50 years old or older who have sufficient financial means to retire in Thailand.


The visa can be valid either for a single entry or multiple entries for a stay of 1 year in Thailand. The visa is renewable every year and the renewal process can be done inside Thailand.


Main requirements:

  • Applicant must be 50 years old or older

  • Applicant must meet one of the following financial requirements:   

  1. deposit of THB 800,000 in a Thai bank account; or

  2.  monthly income of at least THB 65,000.

  • Other documents that may be required to be presented (e.g. Police Clearance and Medical Certificate).


Marriage visa (non-immigrant O) is a long term Thai visa issued to a foreign national who is married with a Thai citizen and meets the other requirements of the immigration bureau.

The Thai marriage visa holder is entitled permission to stay for a full year in Thailand without the need to exit the country. The visa is renewable every year and the renewal process can be done inside Thailand.

The Thailand Marriage Visa also allows the holder to work in Thailand when the visa holder is able to obtain a valid Thai Work Permit to go along with the visa.

Supporting documents to be submitted, but not limited to:

  • Copy of Marriage Certificate for spouse 

  • Copy of passport and ID card of the Thai spouse (All copies must be signed by the Thai spouse)

  • Sponsorship letter from the Thai spouse

  • Applicant’s bank statement showing at least THB 400,000 or equivalent in other currencies for the past two months.


A work permit allows a non-Thai citizen to work and operate a business in Thailand. Once the foreigner obtains a non-immigrant visa, he may apply for a work permit in Thailand.


In order to apply for a work permit for a foreign employee, the employer company must have least at two million baht fully paid-up as registered capital for each work permit application. However, if the foreign employee has a Thai spouse, its only required a registered capital of one million baht.

Thai limited companies may be granted to maximum 10 work permits each. However, the BOI-promoted companies have special right concerning the issuance of work permit and visa for foreign employees working on specific projects as technical experts.