This situation has nothing to do with the TDAC, as the TDAC does not determine the authorized length of stay in Thailand. Your son does not need to take any further steps. What matters is the stamp placed in his passport upon arrival. It is very likely that he entered under the visa exemption scheme, which is common for French passport holders. Currently, this exemption allows a stay of 60 days (instead of the previous 30), which explains why he had no problem despite dates exceeding 30 days. As long as he respects the exit date indicated in his passport, no further action is necessary.

Thank you very much for your response, which helps me. So, if for any reason the indicated deadline of August 11 is exceeded, what steps should my son take? Especially if it is an unplanned overstay of the exit date from Thailand? Thank you again in advance for your next response.

It seems there is some confusion. Your son actually benefits from a 60-day visa exemption, which means his expiration date should be September 8, not August. Ask him to take a photo of the stamp placed in his passport upon arrival and send it to you; you should see a date in September indicated there.

Submitting your TDAC within 72 hours after arrival is free of charge.

Submitting your TDAC within 72 hours after arrival is free of charge.

TDAC (Thailand Digital Arrival Card) is required only for entering Thailand. It is not necessary to complete the TDAC when departing from Thailand.

You do not need to submit the TDAC repeatedly. The QR code is not intended for you to scan yourself; it is for immigration to scan upon arrival. As long as the information on your TDAC is correct, everything is already in the immigration system.

The TDAC QR code is not a scannable QR code for you. It represents your TDAC number for the immigration system and is not intended for you to scan yourself.

If you do not yet have a return flight, please leave all fields in the return flight section of the TDAC form blank. You can then submit the TDAC form as usual without any issues.

Postcode may be slightly off due to sub districts.

Try entering the province and seeing the options.

Hello, my question is about the address of the hotel I have booked in Pattaya City. What else do I need to include?

Yes, you should never pay more than $8 for early TDAC submission services.

There is a whole TDAC page here which lists trusted options: 
https://tdac.agents.co.th/scam

TDAC is only required for international flights to Thailand. You do not need another TDAC for domestic flights.

If you are not yet in Thailand then yes you need to modify the return date.

You can do this by logging into https://agents.co.th/tdac-apply if you used agents, or logging into https://tdac.immigration.go.th/arrival-card/ if you used the official government TDAC system.

For your TDAC address have you tried choosing Chon Buri instead of Pattaya, and making sure the Zip Code is correct?

If you used the government portal for your TDAC application, you may need to submit it again.

If you applied for your TDAC via agents.co.th, you can simply log in and download your document here:
https://agents.co.th/tdac-apply

Yes, you can use the same email for everyone's TDAC, or use separate emails for each person. The email will be used for logging in and receiving the TDAC only. If traveling as a family, one person can act on behalf of everyone.

Thank you very much.

For the TDAC when you have no family name you just can put a dash like "-"

What is the 90-day digital card? Do you mean e-visa?

If you leave the plane, you must fill out the TDAC.

Yes, you still have to fill out the TDAC if you leave Thailand for two weeks and then return. It is required for each entry into Thailand, as the TDAC replaces the TM6 form.

Please turn off the browser's automatic translation feature when applying for the TDAC. Using automatic translation may cause issues such as your name being incorrectly converted into kanji. Instead, please use the language settings on our site and ensure that it is displayed correctly before submitting your application.

For your TDAC, use the final leg of your journey, meaning the country and flight that brings you directly into Thailand.

You don’t need to update your TDAC after entering Thailand.

Just like the TM6, once you’ve entered, no further updates are required. The only requirement is that your initial information is submitted and on record at the time of entry.

TDAC approval is instant if you apply within 72 hours of your arrival.

If you applied earlier than that for your TDAC using AGENTS CO., LTD., your approval is typically processed within the first 1–5 minutes of entering the 72-hour window (midnight Thailand time).

You can download the eSIM after submitting your TDAC at agents.co.th/tdac-apply

If there are any issues, please email: support@agents.co.th

If you have a separate ticket / flight number then you use the last leg for your TDAC.

Flight number is different but the PNR is same for the KUL-SIN-BKK

For your TDAC, you should enter the flight number of your final flight into Thailand, as that’s the arrival flight immigration needs to match.

For the TDAC you can put a "-" in the family name field if there is no family name.

For the TDAC you do not need to add departure details unless you will be only staying for 1 day, and do not have any accommodation.

Yes, you can apply for your TDAC early if you use the agents link:
https://agents.co.th/tdac-apply

If you have purchased an eSIM, a download button should be visible immediately after purchase. You can download the eSIM right away.

Your TDAC will be automatically sent to you by email at midnight, exactly 72 hours before your arrival date.

If you need assistance, you can contact us anytime at support@agents.co.th.

I had bought it earlier and it seemed to be downloaded, but now it's not there, what should I do?

For each international entry into Thailand, you need to complete a new TDAC. Since you're entering Thailand once before and once after visiting Malaysia, you'll need two separate TDAC applications.

If you use agents.co.th/tdac-apply, you can log in and copy your previous submission to quickly get a new TDAC issued for your second entry. 

It saves you from having to re-enter all your details.

Everyone needs the TDAC, you can do it while in line.

The TDAC is not a visa.

You can apply early via the agents TDAC system, and update your visa number once it's approved.

The TDAC is NOT a visa.

It is just a required step for reporting your arrival.

Depending on your passport country you may still need a visa, or you may qualify for a 60-day exemption (which can be extended for an additional 30 days).

For the TDAC, it is not necessary to cancel the application. If you do not enter Thailand on the arrival date indicated in your TDAC, the application will be automatically canceled.

If you filled out the information through the website tdac.immigration.go.th (domain .go.th) and entered the email incorrectly, the system will not be able to send the documents. It is recommended to fill out the application again.

But if you applied through the website agents.co.th/tdac-apply, you can contact the team at support@agents.co.th for us to help check and resend the documents.

If traveling to the country by bus, please specify the bus number in the TDAC form, you can enter the full bus number or just the numeric part.

If traveling to the country by bus, please specify the bus number in the TDAC form, you can enter the full bus number or just the numeric part.

We used agents.co.th/tdac-apply, which is valid in China

The TDAC is free for all nationalities.

For both the official TDAC and the agents TDAC, the additional travelers option comes after you submit your first traveler.

With a group that large, you may want to try the agents form just in case anything goes wrong.

Sometimes the Cloudflare check just doesn’t work. I had a layover in China and couldn’t get it to load no matter what.

Thankfully, the agent’s TDAC system doesn’t use that annoying barrier. It worked smoothly for me without any issues.

If you used the Agents TDAC, you can just log in and edit your TDAC, and it will reissue for you.

But if you used the official government form, you will have to submit the whole thing again as they do not allow editing the passport number.

You cannot update your departure details on the TDAC after you’ve already arrived.

Currently, there's no requirement to keep the TDAC information updated after entry (just like the old paper form).

I have also contacted via email and Line, just awaiting feedback, but I am unsure what’s going on.

You can always contact support@agents.co.th

It sounds like you made a typo in your email for your TDAC.

For Thai eSIM cards, you must be in Thailand to activate them, and the process occurs while connected to a Wi-Fi network.

You’ll need to apply for two TDACs.

With the TDAC agents system, you can first complete one application, then log out and log back in.

You’ll then see an option to copy your existing TDAC, making the second application much faster.

Yes, I used that one to apply for my 2026 trips TDAC.

The official form does not allow you to, but you can do it through the TDAC agents.

Please contact support@agents.co.th — it seems you forgot to download the eSIM card, if that is the case, the amount will be refunded to you.