Livre 6 : Succession

Article 1629: Six classes of statutory heirs detailed

Depuis le 22 janvier 2025, le conjoint survivant, y compris le conjoint de même sexe, est un héritier légal à égalité avec les autres.

Statutory text (Thai original)

ทายาทโดยธรรมมีหกลำดับเท่านั้น และภายใต้บังคับแห่งมาตรา ๑๖๓๐ วรรค ๒ แต่ละลำดับมีสิทธิได้รับมรดกก่อนหลังดังต่อไปนี้ คือ (๑) ผู้สืบสันดาน (๒) บิดามารดา (๓) พี่น้องร่วมบิดามารดาเดียวกัน (๔) พี่น้องร่วมบิดาหรือร่วมมารดาเดียวกัน (๕) ปู่ ย่า ตา ยาย (๖) ลุง ป้า น้า อา คู่สมรสที่ยังมีชีวิตอยู่นั้นก็เป็นทายาทโดยธรรม ภายใต้บังคับของบทบัญญัติพิเศษแห่งมาตรา ๑๖๓๕

Verbatim from the Royal Gazette / Office of the Council of State

English translation

There are only six classes of statutory heir and, subject to Section 1630 paragraph 2, each class is entitled to inherit in the following order:

(1) descendants;
(2) parents;
(3) brothers and sisters of full blood;
(4) brothers and sisters of half blood;
(5) grandparents;
(6) uncles and aunts.

The surviving spouse is also a statutory heir, subject to the special provisions of Section 1635.

ThaiLawOnline translation, written from the Thai original and verified

Firm annotation

Section 1629 names the six classes referenced in §1620. Two practical points: (1) within class 1, both legitimate biological children and adopted children (§1627) inherit equally; illegitimate children inherit only if legitimated under §1547 or specifically named in a will; (2) the per-stirpes rule (§1639) means a deceased class-1 descendant's share passes to their own descendants, grandchildren take their dead parent's share.

Core section

Why this matters in practice

For lawyers: the order is strict, class (1) descendants present means parents, siblings, grandparents, and uncles/aunts receive nothing. The surviving spouse always takes alongside whichever class inherits, in proportions under §1635. Representation (§1639) applies within classes (1), (3), (4), and (6): if a class member predeceases, their descendants step in. For clients: if the deceased had children, only children (and grandchildren by representation) and the surviving spouse inherit. Parents and siblings are entirely excluded. Since 23 January 2025, a registered same-sex spouse is a statutory heir on exactly the same terms.

Legislative history

Part of the original Civil and Commercial Code codification; no major subsequent amendment. Since 23 January 2025, the Marriage Equality Act (No. 24, B.E. 2567) has been in force, giving a same-sex spouse the same inheritance rights as any spouse under this section.

  • six classes of heirs
  • statutory heirs
  • descendants
  • parents
  • siblings
  • grandparents
  • uncles aunts
  • surviving spouse

Décisions de la Cour suprême interprétant cette section

  1. Arrêt de la Cour suprême n° 6161/2548 (2005) ★ Monument

    When a class 1 statutory heir (descendant) exists, all lower classes are entirely excluded under §§1629 and 1630; a member of an excluded class is not an 'interested person' entitled to petition for an estate administrator.

    The applicant was a full-blood sibling of the deceased (class 3); the objector was the deceased's legitimate child (class 1). The court held that because a class 1 heir was present, the class 3 heir had no entitlement to any part of the estate under §§1629 and 1630 paragraph one, and therefore lacked standing as an interested person to petition for appointment of an estate administrator.

    Lire la décision complète (deka.in.th)

  2. Arrêt de la Cour suprême n° 3569/2548 (2005)

    Where the deceased leaves no descendant and no spouse, his property devolves on his mother as a statutory heir of class 2 under section 1629(2). An estate administrator who, instead of transferring it to the heir, registers a sale to a relative for a manifestly low price with no evidence that the price was paid transfers it without consideration and in bad faith, and the statutory heir may have that disposition set aside under section 1300.

    The disputed plot stood in the deceased name, which gave his mother the benefit of the presumption in section 1373. The defendant evidence that the land really belonged to his own mother, who had had the deceased named as donee on her behalf, contradicted the deed of gift itself and carried no weight. On the deceased death the land therefore devolved on the plaintiff, his mother, as a statutory heir of class 2 under section 1629(2), and the court-appointed administrator was bound to transfer it to her. Instead she registered a sale of it to the defendant - her son and the plaintiff half-brother - for 45,000 baht when that plot together with one other was worth 70,000, and no bank record supported the payment he claimed to have made. The Supreme Court held the transfer was without consideration and in bad faith, and that the plaintiff as statutory heir could have it set aside under section 1300.

    Lire la décision complète (deka.in.th)

  3. Arrêt de la Cour suprême n° 2733/2548 (2005)

    Full-blood siblings inherit as class 3 heirs when no class 1 or 2 heirs exist; if a sibling dies after the deceased without receiving a share, the sibling's descendants inherit that share by representation under §1639.

    The deceased had no children, spouse, or surviving parents. The estate passed to full-blood siblings as class 3 heirs under §1629(3). One sibling died after the deceased but before receiving a share; that sibling's share then passed to the sibling's descendants by the right of representation under §1639.

    Lire la décision complète (deka.in.th)

Curated decisions with case numbers verified against the Supreme Court database. English renderings are the firm's editorial translation for study.

Cited in 147 Supreme Court decisions (1949 to 2025)

Décisions de citation sélectionnées

Cette liste est sélectionnée automatiquement, en privilégiant les jugements qui reposent sur cet article plutôt que sur ceux qui se contentent de le citer lors du prononcé de la peine. Elle n'a pas encore été examinée par le cabinet.

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Calculé sur l'ensemble du corpus de 83 652 décisions de la Cour suprême du cabinet, de 1921 à 2026. Le décompte est exhaustif ; la plage d'années indiquée élimine les valeurs aberrantes rares afin de refléter la répartition réelle des citations. Ces chiffres sont calculés par nos soins et ne constituent pas des statistiques officielles de la Cour. Comment nous les comptons et ce que nous avons mesuré

Foire aux questions

Quelles sont les six catégories d'héritiers légaux en Thaïlande ?

Under §1629, the six classes are: (1) descendants (children, grandchildren, great-grandchildren by representation); (2) parents; (3) full-blood siblings (same father and mother); (4) half-blood siblings (same father or same mother only); (5) grandparents (paternal and maternal); (6) uncles and aunts. A class higher in the list takes to the complete exclusion of all lower classes. The surviving spouse inherits alongside whichever class takes, in proportions fixed by §1635. Since 23 January 2025, a same-sex spouse registered under the Marriage Equality Act has identical rights.

Guides connexes sur ThaiLawOnline

Citer cette section

  • Citation simple Civil and Commercial Code, s. 1629 (Thailand)
  • Citation académique Civil and Commercial Code (Thailand), s. 1629. ThaiLawOnline, https://www.thailawonline.com/fr/thai-civil-code/section-1629/ (accessed 30 août 2026).
  • Citation thaïlandaise ป.พ.พ. มาตรา 1629
  • Lien permanent https://www.thailawonline.com/fr/thai-civil-code/section-1629/
  • Intégrer sur votre site <blockquote cite="https://www.thailawonline.com/fr/thai-civil-code/section-1629/"><p>There are only six classes of statutory heir and, subject to Section 1630 paragraph 2, each class is entitled to inherit in the following order: (1) descendants; (2) parents; (3) brothers and sisters of full blood; (4) brothers and sisters of half blood; (5) grandparents;…</p><footer>Civil and Commercial Code, s. 1629 (Thailand): <a href="https://www.thailawonline.com/fr/thai-civil-code/section-1629/">ThaiLawOnline</a></footer></blockquote>

The Thai text is authoritative. The English is an unofficial translation by ThaiLawOnline, free to reuse with attribution.

Ce document a une vocation pédagogique et ne constitue pas un avis juridique. Veuillez consulter un avocat thaïlandais qualifié avant de vous fier à toute disposition de ce document.

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