What is the Thailand Digital Arrival Card (TDAC) and how do I fill it out?
The TDAC is Thailand's free online arrival card. Submit it within 3 days before you arrive - here's how to fill it in, with your trip1 hotel address ready.
Updated
What is the TDAC?
The TDAC is Thailand's digital version of the old paper arrival card (TM.6), in use since 1 May 2025. As of September 2026, it is still required for every non-Thai traveler, including children and infants. If you've booked your stay on trip1, keep your booking confirmation handy - the hotel name and address go straight into the form.
The TDAC is not a visa. It only records your arrival details, so you still need to check whether you need a visa or qualify for visa-free entry. Travelers who transit without passing through immigration, and those entering with a Border Pass, don't need to submit one.
How to fill out the TDAC - step by step
Step 1: Open the official TDAC site
Go to tdac.immigration.go.th within 3 days of your arrival date. The form is free, and you must fill it in in English.
Step 2: Enter your personal details
Add your passport details, nationality, and personal information. You can scan your passport's machine-readable zone to fill fields automatically, but check every entry before moving on.
Step 3: Add your trip and accommodation
Enter your arrival date, flight or vehicle number, purpose of travel, and planned departure. Then add where you're staying - copy the hotel address exactly as it appears on your trip1 booking confirmation.
Step 4: Complete the health declaration
Answer the health questions from Thailand's Ministry of Public Health. You may see extra questions if you've recently visited certain countries.
Step 5: Review and submit
Check all details, use Edit to fix mistakes, then enter your email address and submit. You can add up to 10 travelers in one group submission.
Step 6: Save your TDAC
Download your arrival card with its QR code and keep the copy sent to your email. Show it on your phone or as a printout at immigration.
Can I change my TDAC after submitting?
Yes - use Update Arrival Card to change most details, such as your flight or hotel. You can't change your full name, passport number, nationality, or date of birth. If one of those is wrong, submit a new TDAC - the most recent submission counts.
Important: Some unofficial websites look like the TDAC site and charge a fee to submit the form for you. The official TDAC is free - only use tdac.immigration.go.th, and check official Thai immigration sources before you travel as rules can change.
Thailand Digital Arrival Card (TDAC) - FAQ
Yes. US citizens, like every non-Thai traveller, must submit the Thailand Digital Arrival Card before entering by air, land or sea, including children and anyone entering visa-free. You need a new TDAC for every entry. It is not a visa, so check separately whether your passport needs one for the length of your stay.
You can submit the TDAC within 3 days before your arrival date, including the day you arrive. Fill it in once your flight and hotel are confirmed, using the hotel address exactly as it appears on your trip1 booking confirmation. You can add up to 10 travellers in one group submission.
Nothing. The TDAC is free on the official site, tdac.immigration.go.th. Some lookalike websites charge a fee to submit the form for you, and Thai authorities warn travellers to avoid any site that asks for payment. If a site wants your card details, you are not on the official TDAC site.
No. After you submit, download your arrival card with its QR code and keep the copy sent to your email. You can show it on your phone or as a printout at immigration. A screenshot or printout is a sensible backup in case you have no signal when you land.
Yes, for most details. Use Update Arrival Card to change things such as your flight or hotel. You cannot change your full name, passport number, nationality or date of birth, so if one of those is wrong, submit a new TDAC. The most recent submission is the one that counts.