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TDAC transit or entry: what travellers should know

TDAC transit or entry: what travellers should know

Updated 2026-10-24

TDAC Transit or Entry: What Travellers Should Know

The Thailand Digital Arrival Card (TDAC) is a mandatory travel document for visitors entering Thailand. Whether you're transiting through the country or planning a longer stay, understanding the TDAC requirements is essential to ensure a smooth journey. This article provides clear, factual information to help you navigate the process and avoid unnecessary delays.

What is the Thailand Digital Arrival Card (TDAC)?

The TDAC is an electronic form that must be completed by all travellers entering Thailand, regardless of their nationality or purpose of visit. It replaces the traditional paper-based arrival card and streamlines the immigration process. The TDAC collects essential information such as personal details, travel itinerary, and health declarations.

Who Needs to Complete the TDAC?

All travellers entering Thailand, including those transiting through the country, are required to complete the TDAC. This applies to both short-term visitors and long-term stays. However, there are a few exceptions. For example:

If you're unsure whether you need to complete the TDAC, it's best to check the official portal at https://tdac.immigration.go.th for the most accurate and up-to-date information.

  • Thai nationals returning to Thailand.
  • Travellers with specific diplomatic or official statuses.

TDAC for Transit Passengers

If you're transiting through Thailand and not leaving the airport, you may wonder whether you need to complete the TDAC. The answer is yes. Even if you're only in Thailand for a few hours and staying within the transit area, you are still required to submit the TDAC. This ensures that immigration authorities have your information on file and can facilitate your journey.

TDAC for Entry Passengers

For travellers entering Thailand for tourism, business, or other purposes, the TDAC is a mandatory step in the immigration process. You must complete the form and submit it within 3 days before your arrival. Failure to do so could result in delays or denial of entry.

How to Complete the TDAC

The TDAC can be completed online through the official portal or via independent services like ours. Here's a step-by-step overview of the process:

Please note that applythaicard.com is an independent paid service and is not affiliated with any government entity. Our service fee is $15 per traveller, and we assist with the application process to make it faster and more convenient.

  • Visit the official portal or an independent service provider.
  • Fill in your personal details, travel itinerary, and health information.
  • Review your submission carefully to ensure accuracy.
  • Submit the form within the required timeframe (3 days before arrival).

Key Tips for a Smooth TDAC Process

To avoid issues with your TDAC submission, keep the following tips in mind:

  • Submit your TDAC within the 3-day window before arrival.
  • Double-check all information for accuracy.
  • Keep a digital or printed copy of your submission confirmation.

Common Questions About TDAC Transit or Entry

Here are answers to some frequently asked questions about the TDAC:

1. Do I need to complete the TDAC if I'm only transiting through Thailand?

Yes, all travellers transiting through Thailand, even if they don't leave the airport, are required to complete the TDAC.

2. Can I complete the TDAC at the airport?

It's recommended to complete the TDAC online before your trip. While some airports may offer on-the-spot submission, this could lead to delays.

3. Is the TDAC the same as a visa?

No, the TDAC is separate from a visa. While the TDAC is mandatory for all travellers, a visa may be required depending on your nationality and the purpose of your visit.

Why Use an Independent Service for Your TDAC?

While the official portal is available for TDAC submissions, many travellers choose independent services like applythaicard.com for added convenience. Our service ensures that your application is completed accurately and efficiently, saving you time and reducing the risk of errors. For a fee of $15 per traveller, we handle the process so you can focus on preparing for your trip.

Final Thoughts

The Thailand Digital Arrival Card (TDAC) is a crucial step for all travellers entering or transiting through Thailand. By understanding the requirements and submitting your form within the specified timeframe, you can avoid delays and enjoy a hassle-free journey. Remember to use reliable sources like the official portal or trusted independent services to complete your TDAC.

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TDAC transit or entry: what travellers should know