How to Edit or Update Your Thailand TDAC

Last verified: 3 October 2026 · Independent guide · Not affiliated with the Thai government

Made a typo, changed flights or never got the confirmation email? Most TDAC details can be fixed on the official portal in a couple of minutes. A few can't — for those you submit a new one.

Who this is for: travellers who already submitted a TDAC and need to change or recover it.

Open the official TDAC form →tdac.immigration.go.th · Immigration Bureau of Thailand · Free

Keep this page open in another tab if you get stuck on a field.

How to update your TDAC

Open tdac.immigration.go.th.
Choose Update Arrival Card.
Correct the details that changed — flight, dates, accommodation and so on.
Resubmit and save the new QR code. The most recent submission is the valid one.

What you can and can't change

Detail	How to fix it
Flight number, arrival details	Update Arrival Card
Accommodation address	Update Arrival Card
Purpose, departure details, contact info	Update Arrival Card
Full name	Submit a new TDAC
Passport number (incl. renewed passport)	Submit a new TDAC
Nationality	Submit a new TDAC
Date of birth	Submit a new TDAC

Common situations

My flight was delayed or rebooked

Update your flight details. If the new arrival date falls outside the 3-day window, wait until the window opens and submit a new TDAC.

I didn't get the confirmation email

Check spam, junk and promotions folders.
Check you typed the email correctly.
If you downloaded the TDAC after submitting, that file is enough — immigration needs the QR code, not the email.
Still nothing? Submit a new TDAC; the latest one counts.

I lost my QR code

Search your inbox for the TDAC email. If it's gone, submit a new TDAC before you travel.

I'm arriving on a different day than I entered

A TDAC is valid only for the arrival date on it. Update it, or submit a new one once you're within 3 days of the new date.

I made a mistake in a family group submission

Fix the affected traveller's details with Update Arrival Card. If the mistake is in that person's name, passport number, nationality or date of birth, submit a new TDAC for them.

Avoid "TDAC correction" services. Fixing a TDAC is free on the official portal. Sites charging to edit or "expedite" it are third parties. How to spot fake TDAC sites →

Frequently asked questions

How do I edit my TDAC?

Go to the official portal tdac.immigration.go.th and use Update Arrival Card. Fix the details and resubmit. The latest submission is the one that counts.

What can't I change on my TDAC?

Full name, passport number, nationality and date of birth. If one of these is wrong, submit a brand-new TDAC with the correct details.

My flight changed. Do I need a new TDAC?

Update the flight details using Update Arrival Card. If your new arrival date is outside the 3-day window, submit a new TDAC once the window opens.

I didn't receive the TDAC email. What should I do?

Check spam and promotions folders and confirm the email address you entered. If you downloaded the TDAC after submitting, that copy with its QR code is enough. If you can't find it at all, submit a new one on the official portal.

Can I submit the TDAC more than once?

Yes. You can submit again with corrected information, and the most recent submission is treated as valid.

I renewed my passport after submitting. What now?

Passport number can't be edited, so submit a new TDAC with your new passport details.

Official sources

Thailand Digital Arrival Card — official portal (tdac.immigration.go.th)
Official TDAC FAQ — Immigration Bureau, Royal Thai Police
Immigration Bureau of Thailand
Thailand e-Visa — official site (Ministry of Foreign Affairs)