TDAC exemptions: who does not need to fill it in

Why exemptions exist

Exemptions reflect the fact that not every person crossing a Thai border counts as a regular arrival under immigration law. Some travellers do not formally enter the country, while others fall under specific rules for residents or special categories.

Thai nationals

Thai citizens do not need to submit a Thailand Digital Arrival Card. The TDAC is part of the immigration process for foreign nationals; Thai passport holders use the dedicated Thai national lanes and procedures at border checkpoints.

Transit passengers who do not enter Thailand

Travellers connecting through a Thai international airport without passing through immigration are generally not required to complete a TDAC. This typically applies when:

• The transit takes place entirely inside the international transit area.
• The traveller has an onward boarding pass for a connecting flight.
• Baggage is checked through to the final destination.

If the layover requires collecting baggage, leaving the airport or staying overnight in Thailand, the traveller is considered to enter the country and the TDAC normally applies. The dedicated article on transit, cruise and land border arrivals discusses these situations in more detail.

Certain diplomatic and official travellers

Some categories of travellers, such as accredited diplomats on official duty, may be processed under separate arrangements. These travellers are usually guided by their embassy or mission and do not rely on standard tourist procedures.

Crew members on duty

Airline crew, ship crew and some land transport crew arriving in Thailand on duty are processed through specific crew procedures. Their employers normally manage the relevant declarations. Crew members travelling for personal reasons rather than on duty are usually subject to the regular rules.

Edge cases and uncertainty

In practice, the boundary between an exempt traveller and a regular arrival is not always obvious. Examples include:

• Long layovers where the traveller is offered a transit hotel inside the airport.
• Cruise itineraries that include both shore excursions and overnight stays.
• Land arrivals where part of the journey crosses a third country.

When in doubt, the safer choice is to complete the TDAC. There is no penalty for submitting a form that turns out to have been unnecessary, but arriving without one when it was required can cause delays.

Where official guidance comes from

Exemptions are defined by the Thai Immigration Bureau and may be revised. Travellers in unusual situations are encouraged to consult the official government website or, where relevant, the nearest Royal Thai Embassy or Consulate before relying on an exemption.