Can I submit the TDAC at any time before my arrival in Thailand?

How easy is the form to fill in and what questions are asked!? Thanks 🙏🏿

I arrived on Thursday (BKK)and didn’t even get asked for the TDAC. I had a digital version on my phone ready just in case. Big line of people doing them prior to immigration to.

You answered your own question…

"Withìn"

You can get it at the airport as well before immigration but better to get before

No.

How can you ask this?

The official TDAC form ( only allows submissions within 72 hours of your arrival in Thailand. Once you’re within that window, you can even submit after landing, directly from the airport.

If you'd prefer to complete your submission earlier, we offer an optional early submission service for 272 THB here:



With this option, your form is automatically submitted at the very first minute you're eligible—midnight at the start of your 72-hour window—ensuring the fastest possible approval (can be useful depending on connecting flights, layovers, and travel plans).

More details about this system, its also free if you are within the 72 hour window:

Within 3 days.