Please send TDS your current valid and signed passport. It must not expire within 6 months and must have at least one blank visa page. If you do not have any blank visa pages in your passport, TDS can assist you in applying for additional pages. If your passport expires within 6 months, you must renew your passport and then we will secure your visa with the new passport.

Please send 2 recent professional passport-type photographs.
Digital and non-passport photographs are not acceptable.

A business letter of responsibility (sample) is required, to be typewritten on your company letterhead and addressed to:
Embassy of Thailand, Visa Section, Washington DC
The letter must explain all of the following:
Nature of business to be performed
Name and address of reference to be visited
This letter should request Multiple Entries visa if required
Guarantee of return transportation and sufficient funds for the visit
The letter should be signed by an officer of the company other than the applicant.

A copy of the applicant's recent bank statement or evidence of adequate finance($500 per person and $1000 per family) such as a letter from a bank, or money market statement. It is advisable to erase account numbers.

Letter of invitation on letterhead from a host company or organization in Thailand. Invitation should detail intended dates of arrival and departure from the country, your name and passport number, and request any special visa conditions (Multiple Entries visa) if required. Fax or scan is accepted.