Expats in Thailand
Clear guidance in English on every step.
Civil and Commercial Code \u00b7 District office
Child legitimation and adoption in Thailand
Child legitimation and adoption in Thailand for foreign parents: district office registration, consent, court steps, translation and legalisation. Ask on LINE @NAATI.
What you should know
A foreign father who is not married to the Thai mother can register legitimation of the child at a district office, usually with the consent of the mother and child, or through the court. Adoption has its own procedure involving the Department of Children and Youth. Foreign documents need translation and legalisation.
Who we help
Thai–foreign families
Bilingual documents and translations prepared in-house.
Companies & employers
Support for staff and corporate documents.
How it works
1. Free review
Send your documents on LINE @NAATI and we review your situation.
2. Document checklist
A tailored list of what you need for your case.
3. Translation & certification
Foreign documents translated and certified where required.
4. Filing
We prepare and file, or accompany you to the office.
5. Follow-up
We handle officer requests until the case is complete.
6. Next steps
Reminders for renewals and related obligations.
Frequently asked questions
Why legitimate a child?
It establishes the father's legal parentage under Thai law, with rights and duties for both.
Is consent needed?
Usually the mother and, if old enough, the child must consent; otherwise a court order is needed.
Can a foreigner adopt in Thailand?
Yes, through the official adoption process, which has eligibility checks.
Do documents need translation?
Yes, certified translation and usually legalisation.
How much does it cost?
Our service fee is quoted per case. Government fees are paid at the official rate.
Related services
One team handles the full chain — translation, notarisation, MFA legalisation and embassy attestation — so your document is accepted the first time.
Certification & legalisation
Translation
Personal records & immigration
Not sure which route your document needs?
Send a photo or scan and our staff will confirm the exact steps, supporting documents and realistic turnaround under the receiving authority's current rules.
Free document check
Send your documents on LINE @NAATI or call 094-8958999. Service fees are quoted per case; government fees are paid at the official rate.