How early to file TDAC: what travellers should know

Overview

How Early to File TDAC: What Travellers Should Know Applying for the Thailand Digital Arrival Card (TDAC) at the right time ensures a smooth entry process. But how early should you submit your application? Here’s what travellers need to know about timing their TDAC submission, eligibility, and avoiding last-minute delays.

When to Submit Your Thailand Digital Arrival Card

The TDAC must be filed within 3 days before your arrival in Thailand. This means you cannot apply earlier than 72 hours before your flight or border crossing. For example:

The 3-day window balances preparation time with the Thai government’s requirement for up-to-date traveller information. Note that weekends and holidays count toward this period.

• If you land on Friday at 2 PM, the earliest you can apply is Tuesday at 2 PM.
• Submitting too early risks rejection, as the system only processes applications within this window.
• Leaving it until the last minute isn’t advised—processing times may vary.

Why the 3-Day Limit Exists

Thailand’s immigration system uses the TDAC to verify traveller details shortly before arrival. Applying too early could mean your flight or health details change, requiring re-submission. The limit ensures data accuracy while giving travellers enough time to complete the form.

Key Steps to Avoid Delays

To ensure your TDAC is processed smoothly:

While most applications are processed quickly, unforeseen delays can happen. Submitting at least 24 hours before departure is recommended.

• Check your travel dates carefully before applying—entering the wrong arrival date is a common error.
• Have your passport and flight details ready—you’ll need your passport number, airline, and flight number.
• Review all answers before submitting—errors can delay approval or require a new application.

What If You Need to Change Your Travel Plans?

If your arrival date changes after submitting the TDAC, you must reapply. The original application won’t be valid for the new date. Always double-check your itinerary before applying.

Our Independent TDAC Application Service

At applythaicard.com, we offer an independent, paid service ($15 per traveller) to simplify the TDAC process. We help you:

We are not affiliated with the Thai government. For official information or free applications, always refer to the official TDAC portal.

• Complete the form correctly the first time
• Avoid common mistakes that cause rejections
• Save time with a user-friendly platform

Can I apply for the TDAC a week before my trip?

No. The system only accepts applications within 72 hours of arrival. Applying earlier will result in rejection.

What happens if I submit my TDAC late?

If you apply after the 3-day window or too close to departure, you risk delays or denial of boarding. Airlines may require proof of approval before check-in.

Is the $15 fee for your service the same as government fees?

No. Our service fee is separate. The Thai government does not charge for the TDAC itself—it’s free when applying directly through their portal.

Final Tips for Timing Your TDAC Submission

To ensure a stress-free experience:

Remember, while we streamline the process, we cannot guarantee approval—all applications are subject to Thai immigration’s review. For complex cases or visa-related questions, consult the official resources.

• Set a reminder 3 days before arrival to submit your TDAC.
• If travelling in a group, apply together to avoid mismatched approval times.
• Keep a digital or printed copy of your approval—some airlines request it at check-in.

Special Cases: Connecting Flights and Land Borders

If entering Thailand via a connecting flight or land border, your TDAC submission time is still based on your actual entry time into Thailand, not your initial departure. Calculate carefully if crossing time zones.

For example, a flight from London to Bangkok with a layover in Dubai uses the Bangkok arrival time—not when you leave London or Dubai.

Why Choose Our TDAC Service?

While the official portal is free, our $15 service offers:

We’re ideal for travellers who value convenience and want to avoid form-filling errors. However, those comfortable with official processes can apply directly at no cost.

• Step-by-step guidance in multiple languages
• Error-checking before submission
• 24/7 customer support for application issues

Important Disclaimer

We are a private service and not part of the Thai government. Approval times, eligibility, and final decisions always rest with Thai immigration authorities. For the latest official rules, always check the government portal directly.

In Summary

The best time to file your TDAC is within the 72-hour pre-arrival window—neither too early nor too late. Our service makes it easier for a small fee, but the choice between our platform and the official route is yours. Safe travels to Thailand!