SUBJECT: The Rule on ‘The Order of Intestate Succession’ (Article 978 to 1014)

I. Introduction

This memorandum provides an exhaustive analysis of the rules governing intestate succession under the Philippine Civil Code, specifically Articles 978 to 1014. Intestate succession is a mode of succession by operation of law which takes effect when the decedent dies without a valid will, or when the will is void or has been lost. The provisions establish a rigid order of preference among heirs, dictating how the estate of a deceased person (decedent) shall be distributed among surviving relatives. The fundamental principle is that the law itself steps in to write a will for the decedent, based on presumed intent and the closeness of familial ties. This order is exclusive and mandatory, meaning a person cannot inherit as an intestate heir if a relative of a nearer degree survives.

II. Foundational Principles and Key Definitions

The application of the order of intestacy rests on several key principles. First, the right of representation allows descendants of a predeceased heir to take the place of their ascendant in the inheritance. Second, the rule of proximity dictates that relatives in the nearest degree exclude those in a more remote degree, with the exception of the right of representation. Third, the principle of equal division generally applies among heirs of the same class and degree. Essential terms include: decedent (the deceased person whose estate is being distributed); estate (the totality of the decedent’s property, rights, and obligations at the time of death, net of debts); heir (a person called to the succession by operation of law or by will); legitime (the portion of the estate reserved by law for compulsory heirs); and intestate (the condition of dying without a valid will).

III. Primary Classes of Intestate Heirs and the Order of Exclusion

The Civil Code establishes a strict hierarchy among three primary classes of heirs: (1) Legitimate children and descendants; (2) Legitimate parents and ascendants; and (3) the illegitimate children and, in certain cases, the surviving spouse. The illegitimate parents and the State are residual heirs. The presence of an heir in a primary class excludes all heirs in subsequent classes. For example, the existence of a single legitimate child excludes all ascendants, the surviving spouse (from any share as an heir, though other rights may apply), and all illegitimate relatives from the intestate succession.

IV. Detailed Order of Succession by Class

IV.A. First Class: Legitimate Children and Descendants

Legitimate children inherit to the exclusion of all others. They inherit in their own right, per capita, in equal shares. If a legitimate child predeceases the decedent, his or her descendants inherit by representation, per stirpes. This means the share that would have gone to the predeceased child is divided equally among that child’s own descendants.

IV.B. Second Class: Legitimate Parents and Ascendants

This class inherits only in the absence of legitimate children or descendants. Legitimate parents inherit equally. If only one legitimate parent survives, that parent gets the entire share. If both parents are dead, the nearest legitimate ascendants inherit. In such a case, ascendants of the nearest degree exclude those of a farther degree. If there are ascendants of the same degree but different lines (e.g., paternal and maternal grandparents), the estate is divided into two equal moieties: one for the paternal line and one for the maternal line, with division within each line.

IV.C. Third Class: Illegitimate Children

In the absence of legitimate descendants and legitimate ascendants, the illegitimate children inherit. They inherit in equal shares among themselves. They do not inherit by right of representation; only the illegitimate children who survive the decedent inherit. The surviving spouse concurs with them under the conditions set in Article 1001.

IV.D. Fourth Class: Surviving Spouse

The surviving spouse inherits only in the absence of legitimate descendants, legitimate ascendants, and illegitimate children. Under Article 1001, the surviving spouse inherits the entire estate if there are no other heirs from the first three classes. The surviving spouse also has a right of usufruct alongside certain classes of heirs, which is a separate right from the inheritance share under intestacy.

IV.E. Fifth Class: Illegitimate Parents

Illegitimate parents inherit only in the absence of all heirs from the preceding classes: legitimate descendants, legitimate ascendants, illegitimate children, and the surviving spouse. They inherit in equal shares.

IV.F. Sixth Class: The State

Under Article 1011, in the absence of all heirs mentioned in the preceding articles, the estate escheats to the State. The State shall inherit the entire net estate, with the obligation to apply it to public welfare purposes, such as charitable and educational institutions.

V. The Right of Representation

The right of representation is a right created by fiction of law where the descendant is raised to the place and degree of the person represented. It takes place only in intestate succession and only in favor of descendants of a predeceased heir. It applies exclusively within the first class (legitimate descendants) and, under Article 992, never in favor of illegitimate descendants regarding the legitimate relatives of the decedent. The division is per stirpes: the estate is divided into as many shares as there are roots (living children and predeceased children with living descendants), and the share of a predeceased child is subdivided among his or her descendants.

VI. Special Rules and Prohibitions

Article 992, known as the “iron-curtain” rule, is paramount: “An illegitimate child has no right to inherit ab intestato from the legitimate children and relatives of his father or mother; nor shall such children or relatives inherit in the same manner from the illegitimate child.” This creates a complete barrier to intestate succession between the legitimate and illegitimate lines of a family. Furthermore, relatives by affinity are generally not intestate heirs, except for the surviving spouse. Bad conduct, such as being found guilty of adultery or concubinage, or an attempt on the life of the decedent, can result in disinheritance, but this is a concept more pertinent to testate succession and affects legitime.

VII. Comparative Table: Intestate Share by Surviving Heir Configuration

The following table illustrates the distribution of the net intestate estate under common scenarios, assuming no disinheritance and no outstanding usufruct rights beyond the inheritance share.

Surviving Heir(s) of the Decedent	Share of the Intestate Estate	Governing Article(s)
One or more legitimate children	Entire estate divided equally among them.	Article 979
Legitimate children & descendants of predeceased child	Division per stirpes. Living children get direct shares; descendants of predeceased child divide that child’s share equally among themselves.	Articles 979, 981
Only legitimate parents	Entire estate divided equally between them.	Article 984
Only one legitimate parent and legitimate ascendants on other side	Surviving parent gets 1/2; paternal and maternal lines split the other 1/2, with the moiety of the line with the surviving parent going to its nearest ascendants.	Articles 985, 986
Only illegitimate children	Entire estate divided equally among them.	Article 998
Illegitimate children & a surviving spouse	Illegitimate children get 1/2 (divided equally). Surviving spouse gets 1/2.	Article 1001
Only a surviving spouse	Surviving spouse inherits the entire estate.	Article 1001
Only illegitimate parents	Entire estate divided equally between them.	Article 1003
No qualified heirs from Classes 1-5	Entire estate escheats to the State.	Article 1011

VIII. Procedural Considerations for Estate Settlement

The determination and distribution of the intestate estate occur through a judicial proceeding. The interested parties must file a petition for the settlement of the estate in the appropriate Regional Trial Court. The court will appoint an administrator (or an executor if named in a will, but here it is intestate) to manage the estate, pay debts and taxes, and ultimately distribute the net assets to the heirs as determined by the court in its order of distribution. The rules on venue, notice, inventory, and claims are primarily governed by the Rules of Court.

IX. Relevant Jurisprudence and Doctrines

Supreme Court decisions have clarified these provisions. In Diaz v. Intermediate Appellate Court (1989), the Court reinforced the absolute nature of Article 992, preventing an illegitimate child from representing his deceased father in the inheritance of the father’s legitimate parent. In Uy v. Court of Appeals (1995), the Court held that an illegitimate child who was acknowledged can inherit from the illegitimate father but not from the father’s legitimate family. The doctrine of preterition (the omission of a compulsory heir in the will) applies only in testate proceedings and results in the annulment of the institution of heirs, devolving the succession to intestacy.

X. Conclusion

The order of intestate succession under Articles 978 to 1014 of the Civil Code is a comprehensive, exclusionary system designed to distribute a decedent’s estate according to a fixed hierarchy of blood and marital relationships. Its operation is mechanical, prioritizing legitimate descendants, then legitimate ascendants, followed by illegitimate children and the surviving spouse, with illegitimate parents and the State as final recourse. The critical barrier imposed by Article 992 between legitimate and illegitimate lines fundamentally shapes the distribution. Proper settlement requires strict adherence to both the substantive order of succession and the judicial procedures for estate administration.