Thailand Digital Arrival Card (TDAC) group submission is useful when a family or small travel group enters Thailand together. The official guide says all non-Thai nationals entering Thailand must complete TDAC online before entry, and the FAQ says a family submission can include up to 10 entries per submission.
TL;DR: Use the official TDAC portal at tdac.immigration.go.th within the official 3-day window before arrival. Create one TDAC record per traveler, including children. Use group submission only when the shared trip details really match, and check each passport number, full name, nationality, date of birth, arrival date, accommodation, and email before previewing or submitting.
Family TDAC Quick Checklist
| Item | What to do | Common group mistake |
|---|---|---|
| Traveler records | Add one record for each adult and child | Copying one parent's passport number into a child's record. |
| Group size | Keep each submission within the official 10-entry limit | Starting a large tour group as one submission and running into the limit. |
| Shared trip details | Reuse flight and accommodation only when identical | Applying the first traveler's hotel to someone staying elsewhere. |
| Use an inbox someone can access during travel | QR email goes to one organizer who is offline at arrival. | |
| Identity fields | Check full name, nationality, and date of birth before submission | Trying to update fields that the official guide says cannot be updated later. |
| QR backup | Save each traveler's QR confirmation separately | Keeping only one screenshot for the whole family. |
Who Needs a Separate Record
For TDAC planning, treat every non-Thai traveler as a separate record. That includes children, infants, elderly parents, and travelers in the same booking. A family submission groups records for convenience; it does not turn the family into one traveler.
Before you start, prepare:
- passport details for every traveler;
- full name as shown in the passport;
- nationality or citizenship;
- date of birth;
- arrival date and mode of transport;
- flight number or other transport details;
- Thailand accommodation or address;
- email and phone details for the trip.
If a child has a different surname, a different passport nationality, or a different travel document from a parent, check that record separately instead of relying on copied family details.
How Group Submission Works
The official TDAC guide shows both individual submission and group submission. For group submission, enter the first traveler, then add the next traveler and repeat the traveler-detail steps. If travel and accommodation details are the same, the guide says you can use "Same as Previous Traveler" for the previous traveler.
Use that shortcut carefully. It is helpful for a family on the same flight and in the same hotel, but it is risky when:
- one traveler arrives on a different flight;
- one traveler stays at another hotel;
- a child or dependent has different passport nationality;
- part of the group enters by land while others fly;
- an organizer changes the itinerary after some records have been added.
For more than 10 travelers, split the work into separate submissions and label the saved confirmations clearly.
Children, Shared Email, and QR Storage
Children still need their own traveler details. The adult can prepare the information, but the child record should use the child's passport number, name, nationality, and date of birth.
For email, the safest approach is practical: use an inbox that will be checked during travel and arrival. If one parent or organizer uses a shared email for the group, save each QR confirmation separately after submission. Do not assume one family email means one family QR.
Keep backups in more than one place:
- each traveler's QR in the phone photo gallery;
- a shared folder or trip folder with clearly named files;
- a screenshot or printout for children and elderly travelers;
- offline access in case mobile data or airport Wi-Fi fails.
Fields to Check Before Preview
The official guide notes that all details must be entered in English, and that full name, nationality/citizenship, and date of birth cannot be updated later. That makes the preview step especially important for families and groups.
Check these fields for every traveler:
- full name in passport order;
- passport number and issuing country;
- nationality or citizenship;
- date of birth;
- arrival date and transportation;
- accommodation name and address;
- email and phone;
- health-related fields if the official form asks for them.
If a critical identity field is wrong, do not continue just because the other family records look correct. Fix the affected traveler record before submission.
Where Reusable Profiles Help
Family and group TDAC work is repetitive because the same passport, flight, hotel, and contact fields appear again and again. eVisaFlow Southeast Asia can keep reusable traveler details and fill saved passport, trip, stay, and contact information on the Thailand TDAC official website after you run the extension.
It is most useful when:
- a parent prepares TDAC records for several family members;
- a group uses one flight and one hotel;
- an agency prepares repeated arrival-card records for clients;
- the same travelers also handle other Southeast Asia forms such as MDAC, SG Arrival Card, Cambodia e-Arrival, or Laos eVisa.
