Quick answer

Under Philippine law, inheritance rights generally arise from the moment a person dies. But an heir's exact share cannot be determined simply by looking at who is named on a land title or who is the eldest child. You must first determine the decedent's actual estate, settle applicable debts and obligations, identify any valid will, establish who the legal and compulsory heirs are, and apply the correct rules on legitimes, intestate succession, representation, marital property, and partition. When there are several heirs, they generally own the hereditary estate in common until it is partitioned, subject to the estate's debts. (eLibrary)

A valid will does not necessarily allow a person to leave everything to anyone he or she chooses. Compulsory heirs have a reserved portion called the legitime, and that legitime generally cannot be impaired except in situations specifically allowed by law, such as a valid disinheritance for a statutory cause. If there is no valid will, the estate is distributed according to the Civil Code's rules on legal or intestate succession. (eLibrary)

The rules below principally discuss succession governed by the Civil Code and Family Code. The estate of a deceased Muslim may instead be subject to the distinct succession rules of the Code of Muslim Personal Laws, including different rules on testamentary dispositions and hereditary shares. (eLibrary)

Who may have inheritance rights?

An heir is a person called to succeed to the decedent either by a will or by operation of law. Philippine succession may therefore be testamentary, intestate, or partly both.

Among the most important compulsory heirs under the Civil Code are:

legitimate children and descendants;
in their default, legitimate parents and ascendants;
the surviving legal spouse; and
illegitimate children whose filiation is duly established.

These classes do not always exclude one another. For example, a surviving spouse may inherit together with children, and illegitimate children may inherit together with legitimate children. The precise shares depend on the combination of surviving heirs. (eLibrary)

A legally adopted child is not treated as a lesser heir. Under Republic Act No. 11642, adopters and adoptees have reciprocal rights in testate and intestate succession without distinction from legitimate filiation, subject to the special rules governing biological-family ties, step-parent adoption, wills, and any later rescission of adoption. (eLibrary)

Brothers, sisters, nephews, nieces, and more remote relatives are generally not compulsory heirs merely because they are relatives. They may nevertheless inherit by intestacy when the relatives preferred by law are absent, or they may receive property under a valid will to the extent the property is freely disposable.

The first question: did the deceased leave a valid will?

A document presented as a will does not automatically control the estate. The Civil Code and Rule 75 provide that no will passes real or personal property unless it is proved and allowed by the proper court. Probate therefore matters even when family members believe the will is genuine. (eLibrary)

If a person has custody of a will, Rule 75 requires that person, within 20 days after learning of the testator's death, deliver it to the court having jurisdiction or to the named executor. A named executor likewise has a 20-day duty, under the circumstances specified in Rule 75, to present the will and state in writing whether the trust is accepted or refused. (eLibrary)

Even after a will is admitted, its dispositions remain subject to substantive succession law. A testator who has compulsory heirs cannot ordinarily dispose of the portions reserved as their legitimes.

A will cannot simply erase compulsory heirs

The legitime is the portion of the estate that the law reserves for compulsory heirs. For example, the collective legitime of legitimate children and descendants is generally one-half of the hereditary estate, although the ultimate distribution becomes more complicated when a surviving spouse, illegitimate children, or other compulsory heirs concur.

A compulsory heir may be disinherited only in a will, for a cause expressly recognized by law, with the legal cause stated in the will. If the alleged cause is denied, it must be proved as required by the Civil Code. Simply saying during one's lifetime that a child will receive nothing, executing a private affidavit, or excluding a child from an informal family agreement is not the equivalent of a valid disinheritance.

There is also a distinct rule on preterition. A total omission from a will of a compulsory heir in the direct line can have serious consequences for the institution of heirs. Whether an omission constitutes preterition, ineffective disinheritance, or some other testamentary problem depends on the wording of the will and the surrounding succession facts and should be evaluated carefully.

What happens when there is no will?

When a person dies without a valid will—or when intestacy arises over all or part of the estate—the Civil Code determines who inherits.

The following are simplified examples involving the net hereditary estate, not the family's entire gross property:

Surviving heirs	General intestate rule
Legitimate children, with no surviving spouse or competing class	Children of the same degree generally inherit equally
Surviving spouse + legitimate children	Spouse generally receives the same intestate share as each legitimate child
Surviving spouse + legitimate parents or ascendants, with no descendants	Spouse receives 1/2; legitimate parents or ascendants receive 1/2
Illegitimate children, with no legitimate descendants, legitimate ascendants, or spouse	Illegitimate children may inherit the entire hereditary estate
Surviving spouse + illegitimate children, with no legitimate descendants or ascendants	Spouse receives 1/2; illegitimate children collectively receive 1/2
Legitimate ascendants + illegitimate children, without a spouse	The respective classes generally divide the estate 1/2 and 1/2
Legitimate ascendants + spouse + illegitimate children	Ascendants receive 1/2; spouse 1/4; illegitimate children collectively 1/4
Surviving spouse + brothers/sisters or qualifying nephews/nieces, with no descendants, ascendants, or illegitimate children	Spouse receives 1/2; the collateral heirs collectively receive 1/2
No qualified descendants, ascendants, spouse, illegitimate descendants, or closer heirs	Other collateral relatives may inherit according to the Civil Code, generally only within the fifth degree
No person legally entitled to inherit	The estate ultimately passes to the State under the rules on intestacy

The Civil Code expressly provides, among other combinations, that a surviving spouse who concurs only with legitimate children receives the same share as each child; a spouse concurring only with legitimate ascendants receives one-half; and a spouse concurring only with illegitimate children receives one-half. (eLibrary)

These examples should not be used mechanically for blended families. When legitimate children, illegitimate children, and a surviving spouse all concur, the calculation can become substantially more technical.

Inheritance rights of illegitimate children

An illegitimate child can inherit from a parent. Filiation, however, must be established by legally sufficient evidence.

Under Article 176 of the Family Code, the legitime of each illegitimate child is one-half of the legitime of a legitimate child, subject to the other applicable succession provisions. That does not mean that every estate can be divided using a simple 2:1 formula. The surviving spouse's legitime, the number and classes of heirs, and the available free portion can affect the final computation. (eLibrary)

The Supreme Court's 2024 decision in Macalinao v. Macalinao illustrates why mixed-family computations must be done carefully. In the particular configuration before the Court—one legitimate child, a surviving spouse, and two illegitimate children—the Court protected the legitimate child's one-half share and the spouse's one-fourth share, leaving the remaining one-fourth to the two illegitimate children. The case should not be converted into a universal percentage formula for every family configuration. (eLibrary)

Can grandchildren inherit?

Yes, but being a grandchild does not automatically mean receiving a separate share beside a living parent.

As a general rule, the nearer degree excludes the more remote degree, subject to the Civil Code's rules on representation. Thus, when the decedent's child is alive and legally able to inherit in his or her own right, that child's own children ordinarily do not each receive an additional independent share from the grandparent.

When the law allows representation, however, descendants may step into the place of the person represented and take the share that would have gone to that branch of the family.

An important modern rule comes from Aquino v. Aquino. The Supreme Court held that Article 992's traditional barrier between the legitimate and illegitimate family lines does not apply in the same way when an illegitimate grandchild inherits from a legitimate grandparent by right of representation. The Court abandoned the older doctrine that automatically barred such representation. Article 992 was not simply erased from the Civil Code; rather, its reach was limited in the manner explained by the Court. The exact result still depends on the family tree and proof of filiation.

Determine the deceased spouse's property before computing inheritance

One of the most common inheritance mistakes is treating every marital asset as though the deceased spouse owned 100% of it.

If property belonged to the spouses' absolute community or conjugal partnership, the applicable marital property regime must first be liquidated. The surviving spouse's own share is not an inheritance from the deceased. Only the portion attributable to the deceased, after the proper liquidation and applicable obligations, becomes part of the hereditary estate. The surviving spouse may then inherit an additional share from that estate. (eLibrary)

The Family Code also contains deadlines that can become important when there is no judicial estate proceeding. For an absolute community, Article 103 provides for judicial or extrajudicial liquidation by the surviving spouse within one year from death. For a conjugal partnership of gains, Article 130 specifies six months from death. The Code provides consequences for dispositions or encumbrances made after the applicable period without liquidation. (eLibrary)

Which property regime applies can depend on the date of marriage, marriage settlements, the way an asset was acquired, and other facts. Do not assume that a title in only one spouse's name conclusively proves that the property was exclusively owned by that spouse.

Does a live-in partner automatically inherit?

A live-in partner does not automatically acquire the intestate rights of a “widow” or “widower” merely by long cohabitation. Those Civil Code provisions concern a legally recognized surviving spouse.

That does not necessarily mean that a surviving partner has no property claim at all. Articles 147 and 148 of the Family Code can create co-ownership rights over property acquired during certain non-marital unions, depending on the parties' legal capacity to marry each other, their contributions, and the circumstances of acquisition.

This distinction is critical: a surviving partner may be proving ownership of his or her existing share, rather than inheriting that share. Only the deceased partner's property becomes subject to succession. A valid will may also give a partner part of the disposable estate, subject to compulsory heirs' legitimes.

Heirs inherit rights at death, but not necessarily a specific parcel of land

The Civil Code transmits succession rights upon death. That does not mean that each heir immediately owns a physically identified room, house, farm lot, or portion of land.

When there are two or more heirs, the estate remains co-owned before partition, subject to the decedent's debts. A co-heir generally owns an undivided hereditary interest. A legally completed partition is what confers exclusive ownership of the particular property adjudicated to each heir. (eLibrary)

Consequently, an heir who sells a specific physical portion of an unpartitioned estate cannot ordinarily give the buyer greater rights than the heir actually possesses. The sale of an undivided hereditary share is different from a unilateral attempt to bind all co-heirs to a particular parcel.

There is also a time-sensitive protection when an heir sells his or her hereditary rights to a stranger before partition. Article 1088 permits the other co-heirs to exercise legal redemption by reimbursing the buyer, generally within one month from written notification of the actual sale by the vendor. (eLibrary)

Can heirs settle the estate without going to court?

Sometimes.

Under Rule 74, an extrajudicial settlement of estate is available when the decedent left no will and no debts, and all heirs are of age or any minors are represented by duly authorized judicial or legal representatives. The heirs may divide the estate through the prescribed public instrument; a sole heir may use the procedure for adjudication by a sole heir. (eLibrary)

The fact of the extrajudicial settlement must be published as required by law. For registration of an extrajudicial settlement or affidavit of adjudication, Section 86 of Presidential Decree No. 1529 requires publication once a week for three consecutive weeks in a newspaper of general circulation in the province, with proof filed with the Register of Deeds. (eLibrary)

An extrajudicial settlement is not a lawful shortcut for secretly cutting out a co-heir. Rule 74 itself states that an extrajudicial settlement is not binding upon a person who did not participate in it or had no notice. Supreme Court jurisprudence has likewise clarified that Rule 74's two-year limitation mechanisms do not automatically defeat an omitted heir who neither participated in nor had notice of the settlement, particularly when the Rule was not strictly followed. Old transactions can nevertheless raise additional issues involving prescription, laches, subsequent transfers, registration, and good-faith purchasers, so delay is dangerous. (eLibrary)

If there is a will requiring probate, unresolved estate debt, disagreement among heirs, contested filiation, disputed ownership, or another matter that prevents valid extrajudicial settlement, a judicial estate or partition proceeding may be necessary.

Estate tax must also be addressed

Succession law determines who inherits; tax law separately governs the estate's tax obligations and the requirements for transferring registered assets.

For estates of persons who died on or after the effectivity of the TRAIN Law, the ordinary estate tax rate is 6% of the net taxable estate. The law applicable to estate taxation is generally the law in force when the decedent died, so older deaths can be governed by different rules. (Bir CDN)

Under the BIR's estate tax return rules, the return is generally filed within one year from the decedent's death. The Commissioner may grant an extension for filing of up to 30 days in meritorious cases. A return may also be required where the estate contains registered or registrable property for which BIR clearance is necessary for transfer, regardless of the estate's gross value. (Bir CDN)

Do not assume that a past estate-tax amnesty remains available. Tax treatment should be checked against the decedent's date of death and the law and BIR issuances currently applicable to that estate.

Practical steps for heirs

Obtain the death certificate and establish the family relationships. Secure the relevant PSA birth, marriage, and death records and, where applicable, adoption records and other evidence of filiation.
Secure any original will or codicil immediately. Do not alter, destroy, annotate, or casually distribute the original. Remember the Rule 75 duties applicable to a custodian or named executor.
Identify every possible heir before signing anything. Include legitimate and illegitimate children, adopted children, the legal spouse, descendants who may represent a deceased heir, parents or ascendants when relevant, and collateral relatives if the preferred classes are absent.
Determine what the deceased actually owned. Separate exclusive property from absolute-community, conjugal, co-owned, corporate, partnership, trust, or other property.
Inventory the estate's liabilities. Mortgages, unpaid loans, taxes, contractual obligations, expenses of administration, and other lawful claims can affect what remains for distribution.
Determine whether probate, judicial settlement, partition, or Rule 74 extrajudicial settlement is legally appropriate. Do not use an extrajudicial settlement merely because it is faster if its requirements are not satisfied.
Compute hereditary shares before transferring specific assets. Mixed families, representation, previous donations, disputed marriages, and testamentary dispositions can materially change the computation.
Address BIR and registration requirements promptly. Estate-tax deadlines run independently of family negotiations over who gets which property.

Evidence heirs should preserve

Inheritance disputes are often won or lost on documents. Preserve, where relevant:

PSA death, birth, and marriage certificates;
adoption orders and NACC or predecessor-agency records;
the original will and any codicils;
land titles, deeds, tax declarations, surveys, and property-tax records;
bank, investment, business, and shareholding records;
marriage settlements and documents showing when and how property was acquired;
loan agreements, mortgage documents, receipts, and evidence of estate debts;
prior deeds of donation, waivers, partitions, or advances to heirs;
previous extrajudicial settlements, affidavits of adjudication, publication proofs, BIR documents, and Registry of Deeds records; and
legally relevant evidence of filiation or written acknowledgment where parentage is disputed.

Do not surrender original documents to another claimant without retaining reliable copies and a record of who received them.

Common mistakes to avoid

Dividing the entire marital property pool as though it all belonged to the deceased.
Excluding an illegitimate child simply because the parents were never married.
Treating an adopted child as having fewer succession rights than a biological legitimate child.
Assuming the eldest son, eldest child, or male heir automatically receives a larger share.
Relying on an unprobated will as though title already passed under it.
Believing a parent can disinherit a child merely by saying so.
Signing an extrajudicial settlement without identifying all heirs.
Allowing one heir to sell the whole estate or a specific property as though he or she were already its sole owner.
Assuming publication automatically cures the deliberate omission of a co-heir.
Assuming the two-year Rule 74 annotation automatically extinguishes every omitted heir's claim.
Ignoring the one-year estate-tax filing period or applicable marital-property liquidation rules.
Dividing property before checking whether the decedent actually owned it exclusively.

When legal help is urgent

Seek prompt legal advice when an heir has been omitted from an extrajudicial settlement; a title has already been transferred or is about to be sold; someone is disposing of estate assets without the other heirs; an original will is being withheld, destroyed, or challenged; filiation, adoption, or the validity of a marriage is disputed; the deceased had children from different relationships; a co-heir has sold hereditary rights to an outsider; the one-month redemption period may have been triggered by written notice; estate-tax deadlines are approaching or have passed; or the estate includes substantial businesses, foreign assets, multiple marriages, disputed debts, or Muslim succession issues.

Early action matters particularly where third parties are purchasing property or where statutory periods may be running.

FAQ

Can a parent leave everything to only one child?

Usually not if other compulsory heirs are entitled to legitimes. A parent may generally dispose freely only of the portion not reserved by law. A compulsory heir can lose a legitime through valid disinheritance only when the statutory requirements are satisfied.

Can an illegitimate child inherit from a parent?

Yes. The child's filiation must be legally established. Article 176 of the Family Code generally sets each illegitimate child's legitime at one-half of a legitimate child's legitime, subject to the other succession rules and the combination of surviving heirs. (eLibrary)

Does the eldest child inherit more?

No general Civil Code rule gives the eldest child a larger hereditary share simply because of age, sex, or birth order. Children of the same degree and legal class generally share according to the succession rules applicable to them.

Can a grandchild inherit while his or her parent is still alive?

Ordinarily, the nearer relative excludes the more remote one, so a living child generally takes ahead of that child's descendants. Grandchildren can inherit directly or by representation when the circumstances recognized by law exist.

Can a live-in partner inherit?

A live-in partner does not automatically receive the intestate share reserved for a legal surviving spouse. The partner may nevertheless have an independent co-ownership claim under Articles 147 or 148 of the Family Code and may receive property under a valid will within the disposable portion of the estate.

Can heirs divide an estate without a court case?

Yes, when the requirements of Rule 74 for extrajudicial settlement are actually satisfied. If there is a will, unresolved debt, contested heirship, disagreement requiring judicial intervention, or another disqualifying circumstance, the proper judicial procedure may be necessary. (eLibrary)

Does an heir automatically own a particular property upon death?

Not necessarily. Succession rights transmit at death, but when several heirs exist, the hereditary estate is generally co-owned until partition. Exclusive ownership of a particular estate property normally follows its valid adjudication in the partition. (eLibrary)

Official sources

General-information disclaimer

This article provides general Philippine legal information, not legal advice for a particular estate. Actual inheritance rights can change depending on the date of death, validity and contents of a will, marital property regime, validity of the marriage, filiation, adoption, prior donations, representation, debts, nationality or domicile of the decedent, location and ownership of assets, Muslim personal law, foreign-law issues, and facts established in court or administrative proceedings. Exact hereditary shares should be computed from the complete family tree and estate documents before property is transferred, waived, sold, or partitioned.

Sources and current legal rules checked as of August 26, 2026.