How to Easily Update Your Thailand Digital Arrival Card (TDAC) After Submission in 2025

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Excited for your trip to Thailand? but accidentally enter the wrong info on your Thailand Digital Arrival Card (TDAC)? You’re not alone, and thankfully, in many cases, you can fix it. How to easily update your Thailand Digital Arrival Card is a question many travelers ask, and the good news is, there are solutions. Whether it’s a last-minute flight change or an error in your hotel address, Thailand’s TDAC system allows some corrections even after you have submitted the form.

But there is a catch: not everything is editable

A simple guide helps you understand what details can be updated, what cannot, and how to do it the right way, so your journey starts stress-free at immigration.

How to Update Thailand Digital Arrival Card

What Exactly Is TDAC?

Think of the Thailand Digital Arrival Card as your digital welcome pass to the country. Instead of filling out forms on the plane or at the airport, you complete this online document before your arrival. It includes basic but vital information like:

  • Your passport number
  • Flight Details
  • Planned arrival date
  • Your accommodation address in Thailand

It helps Thai immigration authorities pre-screen and speed up the entry process for millions of travelers. But if you made a typo or your plans changed, don’t panic. There’s usually a fix unless the mistakes involve your personal identity details.

Can you update TDAC after submission?

Yes, you can update certain details on your TDAC after it has been submitted.

Allow up to 215 characters in the address input field of Submit Arrival Card and Update Arrival Card.

Save accommodation details (province, district, area, subdivision, subdivision, postcode, address) without selecting the type of accommodation.

Thailand’s immigration system allows corrections to non-personal data, such as:

  • Flight Number
  • Arrival date
  • Accommodation details
  • Contact information

You can do this easily by visiting the official TDAC portal and selecting the “Update Arrival Card” option.

What cannot be updated on TDAC?

Key personal identifiers cannot be changed after submission. These include:

Not editable on TDAC

  • Full Name
  • Passport Number
  • Nationality
  • Date of Birth

If you have made a mistake in any of the above fields, you will need to submit a new TDAC form from scratch.

How to update your TDAC (Step-by-Step)

Follow these simple steps to make changes to your TDAC:

1. Visit the official TDAC website

Navigate to the portal where you originally submitted your arrival card.

2. Click on “Update Arrival Card.”

This option is usually visible on the homepage or under the “My Submission” tab.

3. Log in using your passport number & email.

Input your original details to access your existing TDAC record.

4. Edit Allowed fields

You will be able to change:

  • Arrival Date 
  • Flight Number
  • Accommodation
  • Contact Details

5. Review and Resubmit 

Make sure all the information is correct before submitting the updated form.

6. Download or screenshot the updated TDAC

Keep a copy on your device or print it to present at immigration.

What to do if you made a major error?

 If your name, passport number, nationality, or date of birth is incorrect:

  • You cannot edit the fields
  •  You must submit a brand new TDAC form using the correct information
  •  Do this well in advance of your travel date to avoid entry delays.

Why does accurate TDAC information matter?

Immigration authorities in Thailand strictly verify TDAC details. Even minor discrepancies can lead to:

  •  Delay at the Immigration counter
  •  Possible denial of entry
  •  additional questioning or paperwork

Ensuring your TDAC is accurate and up-to-date will help you avoid unnecessary stress and speed up your arrival process.

Tips for TDAC  updates

  •  Always double-check your information before submitting your original TDAC.
  •  If your travel plans change (like a new arrival date), update your TDAC immediately.
  • Save a digital copy of your printout to show at immigration.

FAQs About how to Update TDAC

Yes, if what you ever need has changed, you can easily update your TDAC. Just go to the official Tdac website, click on ”update arrival card,” modify the arrival card, and resubmit the form. Make sure to download the updated version for immigration.

Unfortunately, you cannot correct your name, passport number, nationality, or date of birth once the TDAC is submitted. If any of these details are incorrect, you must submit a new Thailand digital arrival card form from scratch using the accurate information.

While there is no official deadline, it is best to update your Thailand digital arrival card at least 24 to 48 hours before your flight, this ensures your updated information is available to the immigration officer upon arrival. Last-minute changes may not reflect in time and could lead to delays.

Conclusion


Mistakes happen, but Thailand’s digital arrival card system offers flexibility for travelers to correct most non-personal errors. For any changes related to your flight, accommodations, or arrival date, simply log in to the official TDAC portal and make the necessary updates. If you have made an error in an unchangeable field like your name or passport number, submitting a new TDAC is your best option.

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