TDAC Thailand Health Declaration Requirements

Understanding TDAC Health Declaration

The Thailand Digital Arrival Card (TDAC) includes a mandatory health declaration section that all travelers must complete. This health declaration is designed to protect public health in Thailand by screening for potential health risks and ensuring that travelers meet specific health requirements.

Since the implementation of the TDAC system on May 1, 2025, the health declaration has become an integral part of the digital arrival process.

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Health Declaration Questions

The TDAC health declaration includes several questions that all travelers must answer truthfully. These questions are designed to identify potential health risks and ensure the safety of both travelers and the Thai population.

Recent Health Status

Fever or Respiratory Symptoms - Whether you have experienced fever, cough, sore throat, or difficulty breathing in the past 14 days
COVID-19 Status - Whether you have tested positive for COVID-19 in the past 14 days
Other Infectious Diseases - Whether you have been diagnosed with any other infectious diseases

Recent Travel History

Countries Visited - A list of all countries you have visited in the 14 days before arrival
Duration of Stay - How long you stayed in each country
Purpose of Travel - The purpose of your visit to each country

Exposure to Infectious Diseases

Contact with Infected Individuals - Whether you have had close contact with anyone diagnosed with an infectious disease
Healthcare Facilities - Whether you have visited any healthcare facilities in the past 14 days
Animal Contact - Whether you have had contact with animals that may carry diseases

Vaccination Status

COVID-19 Vaccination - Your COVID-19 vaccination status and dates
Yellow Fever Vaccination - Required for travelers from certain countries
Other Vaccinations - Any other relevant vaccinations

Yellow Fever Vaccination Requirements

Thailand requires Yellow Fever vaccination certificates for travelers arriving from countries with risk of Yellow Fever transmission. This is a mandatory requirement that must be declared in your TDAC health declaration.

Countries Requiring Yellow Fever Vaccination

Travelers must have a valid Yellow Fever vaccination certificate if they are arriving from or have transited through countries with Yellow Fever risk, including:

African Countries - Most of sub-Saharan Africa
South American Countries - Parts of South America including Brazil, Peru, Colombia
Transit Requirements - Even transit through these countries may require vaccination

Important: The Yellow Fever vaccination must be administered at least 10 days before travel to be valid.

Health Documentation Requirements

When completing your TDAC health declaration, you may need to provide supporting documentation for certain health conditions or vaccination requirements.

Required Documents

Vaccination Certificates - Official vaccination records, especially for Yellow Fever
Medical Certificates - If traveling with medical conditions or medications
COVID-19 Documentation - Test results or vaccination certificates as required
Health Insurance - Travel health insurance documentation

View All Requirements

Important Tips for Health Declaration

Accuracy is Essential

Answer all health questions truthfully and accurately
Double-check all dates and information before submission
Update your TDAC if your health status changes before travel

Preparation Tips

Gather all health documents before starting your TDAC
Check Yellow Fever requirements based on your travel history
Consult a travel medicine specialist if needed

Common Mistakes to Avoid

Providing incomplete travel history
Forgetting to declare medication or medical conditions
Not having required vaccination certificates ready

At Immigration

Have all health documents ready for inspection
Be prepared to answer additional health questions
Follow any additional health screening procedures

Ready to Complete Your TDAC Health Declaration?

Ensure you have all required health documentation before starting your application

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