When to Submit Your TDAC?
You can submit your Thailand Digital Arrival Card (TDAC) up to 3 days before your arrival date, and on the arrival day itself. If you land on 15 January, the portal accepts your card from 12 January. Earlier than that, it won't take the date. New to the TDAC? Start with our complete Thailand Digital Arrival Card guide.
Verified: October 28, 2026
Your window isn't open yet?
The short answer
- Earliest
3 days before your arrival date
- Latest
On arrival day, before you reach immigration
- Days you can submit
4 calendar days: the 3 days before arrival and the arrival day
- Price on the government portal
Free
- How many cards
One per traveller, for every entry into Thailand
The window counts in calendar days, not in hours. For example, on 20 December the portal accepts arrival dates of 20, 21, 22 and 23 December. An arrival on 24 December isn't possible yet.
Find your dates
| Your arrival date in Thailand | First day you can submit | Last day you can submit |
|---|---|---|
| 10 December | 7 December | 10 December |
| 20 December | 17 December | 20 December |
| 15 January | 12 January | 15 January |
| 25 January | 22 January | 25 January |
| 14 February | 11 February | 14 February |
Landing in the first days of a month? Count back three days on a calendar. Your window then starts at the end of the previous month.
Enter your arrival date in the calculator to see your first and last day.
If you try too early
The portal doesn't let you pick an arrival date outside the window. A trip next week can't be entered yet, and some travellers see an "arrival date not allowed" message. Nothing is wrong with your details. You only have to wait until the window opens.
The portal also sends no reminder when your window opens. The Immigration Bureau says so in its own FAQ. You have to remember the date yourself. Other TDAC errors and their fixes.
Don't want to watch the calendar? Apply now and we'll submit your TDAC on the day your window opens.
Can you leave it until arrival day?
Yes. Submitting on the day you land is allowed, and the Immigration Bureau says it provides kiosks and Wi-Fi on arrival for travellers without a phone or internet.
The risk is time. If you make a typo, if the QR code email is slow to arrive, or if the connection drops, you have to fix it in the arrivals hall. Submitting a day or two before you fly leaves room to check the card and correct it calmly. What to do if your QR code doesn't arrive.
The best time to submit
Before the window: collect your details
Passport, flight number, arrival date and the address of your first night. The form, field by field · Printable TDAC checklist.
On the first day of the window: submit
This gives you the most time to fix anything. Each traveller, including children, needs their own card. A family of four can still do it in one go: the portal takes up to 10 travellers per submission and gives each person their own card.
Right after: check and save
Compare the name and passport number with your passport. Save the QR code on your phone so you can show it without internet.
Booked months ahead? Apply now, we file when your window opens
Most people book a trip weeks or months before the TDAC window opens. Then they have to remember a date three days before the flight, in the middle of packing. Say you book in October for a trip that lands on 15 January. With ThaiDigitalCard you apply today, and we submit your TDAC on 12 January:
- Apply up to 12 months before your trip.
- A person checks your details against your passport right away.
- We submit your TDAC on the day your window opens. Your payment confirmation and your tracking page show that date.
- Your TDAC arrives by email as a PDF with the QR code as soon as it's issued.
- Changed your mind? You get a full refund at any time before we file your TDAC. Once your TDAC is filed, it can't be refunded. Refund policy.
ThaiDigitalCard is an independent service, not affiliated with the Thai government. The TDAC is free if you submit it yourself on the government portal.
If your flight or hotel changes after you submit
According to the Immigration Bureau, you can change most details of a submitted card, such as your flight or accommodation, with the portal's "Update Arrival Card" function. Your full name, passport number, nationality and date of birth can't be changed there. If one of those is wrong, submit a new card. The most recent submission is the one that counts. Make the change before you reach immigration.
If you applied with us and your plans change, contact us as soon as you know.
Frequently Asked Questions
How many days before arrival can I submit the TDAC?
Up to 3 days before your arrival date, and on the arrival day itself. For an arrival on 15 January you can submit on 12, 13, 14 or 15 January.
Can I submit the TDAC a week or a month before my trip?
Not on the government portal. It only accepts arrival dates inside the 3-day window. You can prepare your details earlier, or apply with an independent service that holds your application and submits it when the window opens.
Can I fill in the TDAC on the day I arrive?
Yes. The arrival day is inside the window, and the Immigration Bureau provides kiosks and Wi-Fi on arrival. Submitting before you fly leaves time to fix mistakes.
Will I get a reminder when my TDAC window opens?
Not from the government portal. Its FAQ says the TDAC system does not send notifications or alerts to travellers.
Do I need a new TDAC for every trip?
Yes. A TDAC is valid for one entry on the arrival date you entered. You submit a new one each time you enter Thailand.
Sources checked
- Immigration Bureau: TDAC FAQ · October 28, 2026
- Immigration Bureau: TDAC user manual · October 28, 2026
- Tourism Authority of Thailand: TDAC launch announcement · October 28, 2026