{"id":215,"date":"2025-01-11T15:11:13","date_gmt":"2025-01-11T08:11:13","guid":{"rendered":"https:\/\/www.thailawonline.com\/legalization-of-fathers-rights-in-thailand\/"},"modified":"2026-08-08T04:35:33","modified_gmt":"2026-08-07T21:35:33","slug":"legalization-of-fathers-rights-in-thailand","status":"publish","type":"page","link":"https:\/\/www.thailawonline.com\/fr\/legalization-of-fathers-rights-in-thailand\/","title":{"rendered":"L\u00e9gitimation des droits paternels en Tha\u00eflande : Guide complet"},"content":{"rendered":"
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Short answer:<\/strong> if you were not married to the mother, you are not the child’s legal father in Thailand, whatever the birth certificate says. Under section 1546<\/a> of the Civil and Commercial Code the child is the legitimate child of the mother alone, and section 1547<\/a> gives exactly three ways to change that: marry the mother, register the legitimation, or obtain a court judgment<\/strong>. Nothing else works, and time does not do it for you.<\/p>\n

The trap:<\/strong> registration needs the mother’s consent, and under section 1548<\/a> silence counts as refusal<\/strong>, not agreement. If she neither objects nor consents within 60 days of being notified, she is presumed not<\/em> to consent and the registration fails. Waiting achieves nothing. See the three routes<\/a>.<\/p>\n<\/div>\n\n

The Three Routes to Becoming the Legal Father<\/h2>\n\n
\n\n
Route<\/th>What it requires<\/th>Suits you when<\/th><\/tr><\/thead>\n
1. Marry the mother<\/strong><\/td>A registered marriage after the birth. Legitimation follows automatically.<\/td>You are together and marrying anyway. Simplest route by a distance.<\/td><\/tr>\n
2. Register the legitimation at the amphur<\/strong><\/td>The consent of both the child and the mother<\/strong>, given before the registrar.<\/td>Relations are good and she will attend. Cheap and quick when it works.<\/td><\/tr>\n
3. Court judgment<\/strong><\/td>An action for the child to be declared yours. Does not depend on her agreement.<\/td>She refuses, cannot consent, is unreachable, or simply does not respond. This is the route most contested cases end on.<\/td><\/tr>\n<\/tbody><\/table><\/figure>\n\n

Legitimation takes effect from the date of the child’s birth<\/strong>, not from the date of registration or judgment, although it cannot be used to prejudice third parties who acted in good faith in the meantime. So the delay costs you time, not the child’s status.<\/p>\n\n

The Consent Sequence, and Why Waiting Fails<\/h2>\n\n

This is the part that catches foreign fathers, because it runs opposite to the intuition that silence means acquiescence.<\/p>\n\n

\n\n
Stage<\/th>What section 1548 provides<\/th><\/tr><\/thead>\n
You apply<\/td>The father may register the child as legitimate only with the consent of the child and the mother<\/strong>.<\/td><\/tr>\n
They do not attend<\/td>The registrar notifies the child and the mother of your application.<\/td><\/tr>\n
60 days pass with no answer<\/strong><\/td>They are presumed NOT to consent.<\/strong> The registration does not go through. If the child or mother is outside Thailand the period is 180 days<\/strong>.<\/td><\/tr>\n
She objects, refuses, or cannot consent<\/td>Registration must<\/strong> be effected by a judgment of the court.<\/td><\/tr>\n
You obtain the judgment<\/td>Produce it to the registrar and the registration is made.<\/td><\/tr>\n<\/tbody><\/table><\/figure>\n\n

Read that third row again. A father who files at the amphur and waits, expecting silence to carry the day, is simply out 60 days and no further forward. Where you have any reason to think consent will not come, the court route is not the fallback, it is the plan.<\/p>\n\n

Registration Does Not Automatically Give You Parental Power<\/h2>\n\n

Even a successful registration can be hollowed out, and this is separately provided for in section 1549<\/a>.<\/p>\n\n

Within 90 days<\/strong> of being notified of your application, and whether or not they object to the legitimation itself, the child or the mother may notify the registrar to record that you are not a suitable person to exercise parental power<\/strong>, in part or in whole. If they do, then even though the legitimation is registered<\/em>, you cannot exercise the parental power covered by that notice until a court rules that you may, or until 90 days have run from the notification.<\/p>\n\n

So there are two distinct fights available to the other side, on two different clocks:<\/p>\n\n

\n\n
<\/th>Section 1548<\/th>Section 1549<\/th><\/tr><\/thead>\n
What it controls<\/td>Whether you become the legal father at all<\/td>Whether you can exercise parental power once you are<\/td><\/tr>\n
Clock<\/td>60 days from notification, 180 if abroad<\/td>90 days from notification<\/td><\/tr>\n
Effect of silence<\/td>Presumed refusal, registration blocked<\/td>No objection recorded, parental power unaffected<\/td><\/tr>\n
How it is resolved<\/td>Court judgment on legitimation<\/td>Court ruling that you may exercise parental power<\/td><\/tr>\n<\/tbody><\/table><\/figure>\n\n

The practical lesson is that “getting my name on it” is not the finish line. A father who wins legitimation and stops there can still find he has no lawful say in schooling, medical decisions or travel.<\/p>\n\n

What Legitimation Actually Gives You, and What It Does Not<\/h2>\n\n
\n\n
You gain<\/th>You do not automatically gain<\/th><\/tr><\/thead>\n
Legal fatherhood, retroactive to the birth<\/td>Custody. Parental power is decided separately, and section 1549 can block it<\/td><\/tr>\n
Standing to apply to the court about the child at all<\/td>Sole custody, which remains a separate application on the child’s best interests<\/td><\/tr>\n
The child’s inheritance rights from you, and yours from the child<\/td>A right to remove the child from Thailand without the mother’s agreement<\/td><\/tr>\n
The maintenance duty under section 1564, which cuts both ways<\/td>Any change to the child’s nationality or passport by itself<\/td><\/tr>\n<\/tbody><\/table><\/figure>\n\n

That last row in the left column matters. Legitimation is what makes you liable to maintain the child, so it is not a costless step, and the money question is set out in our guide to child support in Thailand<\/a>. The custody question is in child custody in Thailand<\/a>.<\/p>\n\n

Being on the Birth Certificate Is Not Legitimation<\/h2>\n\n

The single most common misunderstanding we see. A Thai birth certificate recording your name is evidence about a fact. It is not a legal status, and it does not make you the child’s legal father under section 1547. Fathers discover this at the worst possible moment: at a hospital, at a school, at an immigration counter, or after the mother has died.<\/p>\n\n

If your name is on the certificate and you have never registered legitimation or obtained a judgment, you are in the third row of the first table on this page, not the second.<\/p>\n\n\n\n

Legitimation of father’s rights in Thailand is often misunderstood. The complexity of child custody laws in Thailand can be daunting, particularly for fathers seeking to establish their parental rights. The process involves understanding a myriad of legal requirements, including legitimization and securing legal recognition on the birth certificate. Understanding these procedures is capital for any father aiming to acquire rights over the child. This article provides a comprehensive overview of the steps involved in legitimizing a father’s rights and obtaining child custody in Thailand<\/a>. It also highlights the importance of mutual agreements and the challenges encountered in the family court system. The legitimation of father’s rights in Thailand is an essential topic for many expatriate fathers. <\/p>\n\n

Legitimation is the gateway to every other parental right described in our guide to Thai family law<\/a>.<\/p>\n\n\n\n\n

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\"Legitimation<\/figure>\n<\/div>\n\n\n

Table of Contents<\/h2>