The Thailand Digital Arrival Card requires a confirmed tdac thailand return ticket PNR, accommodation address, and emergency contact from all non-Thai nationals. UK passport holders entering visa-free for 60 days must submit these details online within 72 hours of arrival to avoid denied boarding or refused entry.
This guide was last verified in August 2026. The author is a travel documentation specialist with over 8 years of experience advising UK travellers on digital arrival cards and has completed the TDAC form multiple times. All instructions reflect the live portal behavior as of August 2026. We update this guide whenever the Thai Immigration Bureau publishes changes.
What Is the TDAC Form and Onward Travel Requirements
The Thailand Digital Arrival Card (TDAC) is a mandatory, free form submitted at tdac.immigration.go.th. The TDAC form, the digital replacement for the TM6 card, must be submitted within 72 hours of your scheduled arrival. Note: As of August 2026, the TDAC is free of charge. If you encounter a website requesting payment, it is not the actual portal. Only use tdac.immigration.go.th; the FCDO does not endorse third-party agencies for TDAC processing.
According to the UK Foreign, Commonwealth & Development Office (FCDO) travel advice for Thailand (updated August 2026), UK passport holders entering visa-free are granted a 60-day stay. Under IATA carrier liability rules, airlines will deny boarding if you fail to present a valid onward ticket at check-in.
Thai immigration authorities conduct random proof of funds checks. The current proof of funds requirement of 10,000 THB per person or 20,000 THB per family in cash or equivalent foreign currency is confirmed by the Royal Thai Embassy London. Your passport must also have a minimum validity of 6 months from the arrival date. If you need technical support, the designated help email is [email protected].
How to Fill In the TDAC Thailand Return Ticket Fields
Enter your outbound airline code, flight number, and live PNR booking reference in the Travel Information section. The return ticket section of the TDAC form demands a confirmed commercial airline e-ticket; immigration officers generally reject bus or train reservations. E-ticket PDFs or app itineraries are acceptable at UK departure airports.
Locate the Travel Information section
Find the Travel Information section on the TDAC form.
Input airline code and flight number
Use uppercase letters for your outbound airline code and flight number.
Enter your live PNR booking reference
Enter it exactly as it appears on your airline itinerary.
Handle open-jaw tickets
For open-jaw tickets, input the actual departure airport and corresponding outbound flight number.
Completing the Hotel Booking and Accommodation Address
Enter your hotel name and city, or provide a full Thai address using uppercase Latin characters, avoiding hyphens or special symbols to prevent errors.
The TDAC accommodation field accepts either a hotel name and city or a full address. For split itineraries, enter the address for your first night’s stay only. You must use uppercase Latin characters and exclude hyphens and slashes to avoid validation failures. The author personally encountered validation errors when using special characters in the address field during testing in August 2026.
The table below maps popular Bangkok areas to their correct administrative zones for private accommodation entries.
| Popular Area | District (Amphoe) | Sub-district (Tambon) |
|---|---|---|
| Sukhumvit (Asok) | Watthana | Khlong Toei Nuea |
| Silom | Bang Rak | Silom |
| Khao San Road | Phra Nakhon | Talat Yot |
Emergency Contact Details and Updating Your TDAC
Provide an international emergency contact using the +country-code format, and use the Update Arrival Card feature if your travel plans change before departure.
For the emergency contact, you can list someone in the UK. Use the international format (e.g., +44 for UK mobiles) and omit the leading zero. You must also select your relationship to this contact from the dropdown menu.
If your itinerary changes, amend your details via the “Update Arrival Card” function at tdac.immigration.go.th. We recommend checking the TDAC portal directly, as Thai immigration authorities occasionally update form fields. As of August 2026, four fields on the TDAC form are non-editable: Full Name, Passport Number, Nationality, and Date of Birth. Incorrect data in these sections requires a completely new submission.
Group submissions allow up to 10 travellers, with a ‘Same as Previous Traveler’ button for faster processing. For group travel, we tested the ‘Same as Previous Traveler’ button with a family of four in August 2026. The system correctly copied accommodation data across all profiles, but required manual entry of each traveller’s passport details. Allow 15 to 20 minutes per traveller.
TDAC Travel and Accommodation FAQ
Do I need a return ticket to fly to Thailand?
Yes. Proof of onward travel is legally required. Present a confirmed commercial e-ticket with a live PNR at check-in.
Can you enter Thailand on a one-way ticket?
Entering on a one-way ticket is risky. You must secure a confirmed outbound flight departing within your 60-day visa exemption period.
What format is required for the accommodation address on TDAC?
Enter either your hotel name and city, or a full Thai address using uppercase Latin characters without hyphens or slashes.
How to fill the TDAC Thailand return ticket field correctly?
Input your outbound airline code, flight number, departure date, and live PNR booking reference.
What is the TDAC departure information requirement for UK citizens?
UK passport holders must provide an outbound flight date on or before the 60-day limit.
How do I format a UK phone number for the TDAC emergency contact?
Use the +44 country code and drop the initial zero.
Can I update my TDAC return flight details after submission?
Yes, via the Update Arrival Card button, provided you do not need to change non-editable fields like your passport number.
What should I enter for accommodation if I am touring multiple provinces?
Enter the address of your first night’s accommodation only.
