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When is the best time to submit TDAC when traveling to Thailand?

May 6, 2025
25 days ago
Uhapuk ******
ORIGINAL POSTER
Question:

So...

If I leave the USA on June 6,@1230(Friday)..with lay over in Japan ,and touch down, in BKK @1155(Saturday june7th)...

When would be the best time to put in the TDAC?

Wendy? Or Thursday?

) being it has to be 3 days exact...

ThankI for the info.😊
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TLDR : Answer Summary
The TDAC (Thailand Declaration of Arrival Card) should be submitted anytime within 3 days before your arrival in Bangkok. You can do this as early as June 5th or during your layover in Japan. Submitting it before leaving home or during online check-in is a convenient option, as it doesn't need to be exactly 3 days before arrival.
Thailand Digital Arrival Card (TDAC)

WARNING: Only trust Thai government websites with .go.th domains or Thai agent websites with .co.th or .in.th domains, as these require verified Thai registration and cannot be registered anonymously.

The official TDAC form is available at tdac.immigration.go.th, which uses the official .go.th government domain.

The services by AGENTS CO., LTD. does NOT charge any fees for arrivals within 72 hours. If you need to book more than 72 hours in advance, there is a service fee of $8.

Do not trust other sites pretending to be a trustworthy agency. Pay attention to delivery time - the service operated by AGENTS CO., LTD. has 1 minute delivery time for arrivals within 72 hours.

Don't fall for sites pretending to be tdac.in.th or the official government tdac.immigration.go.th website. Always double-check the exact domain in your browser.

Scam services may take days to process your application, others may not even do anything. With these TDAC scam services you also need to worry about double charges.

Please watch out for TDAC misinformation spread by fugitive Jesse Nickles and his many fake accounts on Quora, TripAdvisor, Reddit, and other platforms.

TRUSTED TDAC LINKS:

Official Government TDAC Form: tdac.immigration.go.th
Official TDAC form by AGENTS (https://tdac.agents.co.th)
Official TDAC information page by AGENTS (https://tdac.in.th)

Anna *********
I do it when I do online check in Super easy to remember and the timing works
Robbie *******
FFS
Uhapuk ******
ORIGINAL POSTER
Thanks for the info peeps.

😊
Ernst *********
So do it on the 5th, leisurely at home.

Or 6th, before you go to the airport.

You can also do it on your flight if you have wifi. Do it in Japan while on your layover with airport wifi.

Or do it when you land at Bangkok before you get to immigration.

I would do it before I leave home.
Bob **********
You can do it from Japan on your layover if not do it when you arrive
Marco *******
Anytime from 72hr before your arrival, even 5 minutes before
Phil *******
Wayne *********
It doesn’t have to be exactly 3 days, you can do it anytime within 3 days of arrival.

There are a number of medical questions, some of which would be useless if answered two weeks prior, hence the narrow timeframe.
Stuart *********
It doesn’t need to be exactly 3 days, just within 3 days of your arrival date.

If you have no access to a phone or computer you can do it at one of the terminals in the airport prior to immigration.
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