Parentage
The child's Thai birth certificate and legitimation registration where the father is unmarried.
Foreign parents of Thai children can obtain a Non-O and extend stay to support the child, showing parentage, genuine care, and common financial criteria of a THB 400,000 deposit or THB 40,000 monthly income.

Foreign parents of Thai children can obtain a Non-O and extend stay to support the child, showing parentage, genuine care, and common financial criteria of a THB 400,000 deposit or THB 40,000 monthly income.
This page is for parents of Thai children. Financial figures are government criteria under Immigration orders and Ministry of Foreign Affairs notices, which may change; check the latest notice before filing. Approval is at officials' discretion.
The child's Thai birth certificate and legitimation registration where the father is unmarried.
The child is within the age criteria and lives with or is cared for by the applicant.
Deposit or income per the current order.
This basis may end; plan a change.




Full coverage
Documents accepted nationwide
Ask our team; confirmed in writing before work starts
Most clients pair these services together
Fees and turnaround depend on the document type and receiving authority — please contact our staff by phone, LINE or email.
Supporting documents and the certification route differ by country of origin. Pick your nationality to see the Royal Thai Embassy that accepts the application, the source language requiring certified Thai translation, and the applicable Apostille or legalisation path.