Quick answer

Under Philippine law, inheritance rights arise only upon the owner’s death. A valid will generally controls distribution, but it cannot ordinarily deprive compulsory heirs—such as children, a surviving spouse, and in some cases parents—of their legally reserved share or legitime. Without a valid will, the Civil Code determines who inherits and in what proportions.

Before anyone receives property, the estate must be identified, the surviving spouse’s or co-owner’s property separated, and enforceable debts, taxes, and administration expenses addressed. An heir inherits obligations only up to the value of the inheritance received. Exact shares depend on the family tree, marital status, filiation, adoption records, property regime, lifetime donations, debts, and the existence and validity of a will.

When inheritance rights begin

The owner remains free to control property during life, subject to laws on marriage, co-ownership, donations, and fraudulent transfers. A prospective heir cannot demand a future inheritance, and an agreement renouncing a future legitime is generally void.

Upon death:

Successional rights are transmitted immediately, although the estate must still be settled.
If there are several heirs, they initially hold the estate in common, subject to estate debts.
No heir automatically owns a particular house, lot, vehicle, or account until it is validly adjudicated or partitioned.
A co-heir generally cannot sell or mortgage the entire estate property without authority from the other co-owners or the court. At most, an heir may dispose of the undivided interest that ultimately belongs to that heir.

These principles appear in Articles 774–782 and 1078 of the Civil Code of the Philippines.

First determine what actually belongs to the estate

Inheritance is not calculated simply by listing everything registered in the deceased person’s name. The following must be determined first:

Ownership. Property belonging to another person or held only in trust does not become part of the estate merely because the deceased possessed it.
Marital property. The absolute community or conjugal partnership must be liquidated. The surviving spouse’s own share is separated before the deceased spouse’s net share is distributed as inheritance.
Co-owned property. Only the deceased’s ownership interest enters the estate.
Transmissible rights and obligations. Rights or duties extinguished by death are excluded.
Debts and charges. Enforceable debts, taxes, and proper administration expenses are paid from the estate before final distribution.
Relevant lifetime donations. Certain donations must be brought into the computation of the legitime and may be reduced if they impaired compulsory heirs’ shares.

Insurance proceeds, retirement benefits, SSS or GSIS benefits, employment death benefits, and accounts with beneficiary arrangements may be governed by their own statutes or contracts. They should not be assumed either to form part of the estate or to follow ordinary inheritance shares without checking the controlling instrument.

Who are compulsory heirs?

A compulsory heir is entitled to a legitime when Philippine succession law applies. The classes are not always called at the same time.

Class	General rule
Legitimate children and descendants	They are primary compulsory heirs. A nearer descendant normally excludes a more remote descendant, subject to representation.
Legally adopted children	An adoptee is treated as a legitimate child of the adopter, with reciprocal succession rights under current adoption law.
Legitimate parents and ascendants	They are compulsory heirs only in default of legitimate children or descendants, subject to special rules when other heirs concur.
Surviving legal spouse	The spouse commonly concurs with children, parents, or other heirs. The share depends on who else survives.
Children whose parents were not married	The Civil Code calls them “illegitimate children.” They are compulsory heirs, but filiation must be duly proved.
Parents of a deceased child born outside marriage	Special compulsory-share rules may apply when the deceased leaves no descendants and depending on whether a spouse or children survive.

The Civil Code’s original terminology has been modified by the Family Code. Article 176 provides that each illegitimate child’s legitime is one-half of the legitime of a legitimate child, subject to the rules protecting the surviving spouse and the available portion of the estate.

Under Sections 41–43 of Republic Act No. 11642, an adopted child is considered the adopter’s legitimate child, and adopter and adoptee have reciprocal succession rights without distinction from legitimate filiation. The adoption’s date, type, rescission history, and whether it was a step-parent adoption may affect continuing ties with the biological family.

Who is not automatically an heir?

Unless covered by another legal relationship or named in a valid will within the disposable portion, the following are not automatically compulsory heirs:

A live-in or common-law partner who is not the legal spouse
A fiancé or fiancée
A stepchild who was never legally adopted
A son-in-law, daughter-in-law, or other in-law
A friend, caregiver, godchild, or household member
Brothers, sisters, nephews, nieces, and cousins, although some may inherit in intestacy when nearer heirs are absent
A person named only in an informal note that does not qualify as a valid will

An unmarried partner may separately own part of property acquired during the relationship under the applicable co-ownership rules. That ownership must be determined before inheritance is computed; it is not an inheritance share.

If there is a valid will

A will may name heirs and give particular real property as a devise or personal property as a legacy. However, the testator may freely dispose only of the portion not reserved as legitimes.

Core rules include:

Legitimate children and descendants collectively have a legitime equal to one-half of the hereditary estate, divided under the applicable rules.
If there are no legitimate descendants, legitimate parents or ascendants may have a collective legitime of one-half.
A surviving spouse’s legitime varies depending on whether the spouse concurs with one or more legitimate children, ascendants, or illegitimate children.
Each illegitimate child’s legitime is generally one-half of a legitimate child’s legitime, but it is taken from the disposable portion and may be limited when several compulsory heirs concur.
Donations and testamentary gifts that impair a legitime may be reduced upon the affected heir’s petition.

Mixed families require special care. The Supreme Court has explained that some legitimes are fixed while the spouse’s and illegitimate children’s shares can vary with the combination of heirs. A simple “two shares versus one share” formula may produce the wrong result, particularly where one legitimate child, a spouse, and several illegitimate children concur. See Macalinao v. Macalinao, G.R. No. 250613, April 3, 2024.

Omission and disinheritance are different

A parent cannot disinherit a compulsory heir merely because they are estranged, disappointed, or prefer another child.

Valid disinheritance requires:

A will;
A legal cause expressly recognized in Articles 919–921 of the Civil Code; and
Specification of that cause in the will.

If the disinherited heir denies the cause, the other heirs bear the burden of proving it. A cause not stated, not legally recognized, or not proved results in ineffective disinheritance to the extent that the heir’s legitime was prejudiced.

Preterition is the total and generally unintentional omission from the will of a compulsory heir in the direct line. It can annul the institution of heirs, although valid devises and legacies may remain effective insofar as they do not impair legitimes. Merely giving an heir less than the proper legitime is ordinarily addressed by completing or restoring that legitime.

A person may also be legally incapable or unworthy to inherit for the specific reasons in Articles 1027 and 1032, such as specified interference with a will or certain serious acts against the deceased. These rules are distinct from disinheritance and should not be applied by private accusation alone.

If there is no valid will

Intestate succession applies when there is no will, the will is void or not allowed in probate, the will leaves part of the estate undisposed of, or a testamentary disposition fails without an applicable substitute or right of accretion.

Common uncomplicated situations include:

Surviving relatives	General intestate result
Legitimate children only	They inherit in equal shares.
Surviving spouse and legitimate children only	The spouse receives the same share as each child.
Illegitimate children only	They inherit the estate under the rules for their line, subject to proven filiation and representation.
Surviving spouse and illegitimate children only	The spouse receives one-half; the children or their descendants share the other half.
Legitimate parents or ascendants only	The nearest ascendants inherit; both parents generally share equally if both survive.
Surviving spouse and legitimate parents or ascendants	The spouse receives one-half and the ascendants receive one-half.
Legitimate ascendants and illegitimate children	Each group receives one-half.
Surviving spouse with siblings, nephews, or nieces, and no descendants, ascendants, or illegitimate children	The spouse receives one-half and the qualifying collateral relatives receive one-half.
Surviving spouse alone, with no qualifying descendants, ascendants, illegitimate children, siblings, nephews, or nieces	The spouse inherits the entire estate.
No descendants, ascendants, illegitimate children, or spouse	Siblings and their children, then other collateral relatives within the fifth degree, may inherit under the Civil Code’s order and full-blood or half-blood rules.
No qualified heir	The estate passes to the State through escheat proceedings.

This table does not cover every mixed-family configuration. Representation, half-blood relationships, adoption, legal separation, competing marriages, and the status of particular children can change the result.

Rights of grandchildren and representation

A grandchild does not ordinarily inherit directly while the grandchild’s parent—the deceased person’s nearer descendant—is alive and qualified to inherit. Representation may place the grandchild in the parent’s position when the law permits, including when the parent predeceased the grandparent or was incapable of succeeding.

Distribution by representation is per stirpes: the representatives collectively receive no more than the share their parent would have received.

A child whose parents did not marry may represent a deceased parent in inheriting from a direct ascendant such as a grandparent. In Aquino v. Aquino, G.R. Nos. 208912 and 209018, December 7, 2021, the Supreme Court held that children, regardless of the circumstances of birth, may inherit from direct ascendants by representation. The Court limited that ruling to representation in the direct line and did not decide every issue concerning inheritance in one’s own right from collateral relatives.

A repudiating heir generally cannot be represented. Different rules protect the descendants of a properly disinherited or legally incapacitated heir, so the reason the nearer heir cannot inherit matters.

The surviving spouse’s rights

Only a person who is the legal surviving spouse is automatically called as a spouse under the succession rules. A partner in a void marriage or an unmarried relationship does not acquire a spouse’s intestate share merely through long cohabitation or having children together.

Important qualifications include:

A surviving spouse’s own community or conjugal property share is separate from the spouse’s inheritance.
If there was a decree of legal separation, the spouse who gave cause for the separation is disqualified from inheriting under the applicable provisions.
A purported second marriage, an unresolved prior marriage, or a questioned marriage certificate can materially affect heirship.
Property acquired in a nonmarital union may still be co-owned under Articles 147 or 148 of the Family Code, even though the partner is not a surviving spouse.

Proof of filiation matters

Being biologically related is not always enough to transfer registered property. Filiation must be established through legally competent evidence.

Preserve:

PSA birth, marriage, and death certificates
Birth records bearing a legally effective acknowledgment
Adoption orders and amended birth certificates
Court judgments on filiation, legitimacy, adoption, nullity, or legal separation
Public documents or qualifying private handwritten documents acknowledging filiation
Records showing open and continuous possession of the status of a child
DNA evidence and related court records, where legally obtained and relevant
Earlier pleadings, affidavits, support records, correspondence, photographs, and school or medical records that may corroborate family status

The allowable evidence and deadline for an action involving filiation can depend on the claimant’s birth date, the kind of evidence available, and whether the alleged parent is alive. Prompt individual advice is essential when filiation is disputed.

How an estate is settled

Extrajudicial settlement

Under Rule 74, an estate may generally be settled without appointing an administrator when:

The deceased left no will;
The estate has no outstanding debts;
All heirs are of age, or minors are represented by duly authorized judicial or legal representatives; and
All necessary heirs participate.

The heirs execute a public instrument and file it with the Register of Deeds. A sole heir may use an affidavit of self-adjudication. The settlement must be published in a newspaper of general circulation once a week for three consecutive weeks. A bond equal to the value of the personal property involved must be filed as prescribed by the Rule.

Publication does not cure the exclusion of a known heir. An extrajudicial settlement is not binding on a person who did not participate and had no notice.

Rule 74 imposes a two-year liability period for creditors and persons unduly deprived of participation. A minor, mentally incapacitated person, prisoner, or person outside the Philippines at the end of that period may have one year after the disability is removed. These periods do not necessarily govern every possible action involving fraud, title, reconveyance, or co-ownership, so an omitted heir should not delay obtaining advice.

Judicial settlement

Court proceedings are normally required when:

There is a will;
Heirs dispute their identities, shares, or the validity of documents;
There are unresolved debts or creditor claims;
An heir is missing or inadequately represented;
Filiation, marriage, adoption, ownership, or capacity is contested;
The estate requires an administrator or court-authorized sale; or
The heirs cannot agree on partition.

A will cannot transfer estate property unless it is proved and allowed by the proper court. A person holding the will must deliver it to the court or named executor within 20 days after learning of the testator’s death. The named executor has a corresponding 20-day duty to present it and state whether the appointment is accepted.

The proceeding is filed where the deceased resided at death, or, for a person residing abroad, where Philippine estate property is located. Under Republic Act No. 11576, first-level courts have probate jurisdiction when the gross estate does not exceed ₱2 million; the Regional Trial Court has jurisdiction when it exceeds that amount.

Rule 74 also retains a judicial “summary settlement of estate of small value” procedure when the gross estate does not exceed ₱10,000. This old threshold is different from the ₱2-million jurisdictional boundary between first- and second-level courts.

The procedural rules are available in the Supreme Court’s Rules 72–109 on Special Proceedings.

Estate tax and transfer requirements

Estate tax compliance is separate from determining who the heirs are.

For deaths on or after January 1, 2018:

The estate tax is generally 6% of the net taxable estate.
The estate tax return is generally due within one year from death.
A filing extension of up to 30 days may be granted in meritorious cases; it is not automatic.
Payment is generally due when the return is filed.
If immediate payment would cause undue hardship, the Commissioner may approve an extension of up to five years for a judicial settlement or two years for an extrajudicial settlement, potentially with interest and a bond.
A CPA-certified statement is required when the gross estate exceeds ₱5 million.
A return may still be required regardless of value when the estate contains registered or registrable property requiring a BIR electronic Certificate Authorizing Registration or eCAR.
For a citizen or resident, current deductions include a ₱5-million standard deduction and a family-home deduction of up to ₱10 million, subject to statutory conditions. These are deductions in computing tax, not automatic inheritance payments to an heir.

The rates and rules applicable on the date of death control older estates. The last statutory estate-tax-amnesty filing and payment period ended on June 14, 2025. A taxpayer who timely availed may still need to complete supporting settlement requirements under current BIR guidance; late estates should not assume that a new amnesty is available.

See BIR Revenue Regulations No. 12-2018, the BIR estate-tax page, and BIR Revenue Memorandum Circular No. 33-2026.

Practical steps for heirs

Secure the death certificate and original will. Do not alter, staple, annotate, or conceal the will.
Protect the estate. Change locks only with proper authority, secure vehicles and records, photograph valuables, and record all collections and expenses.
Prepare a complete family tree. Include all children from every relationship, adopted children, predeceased children and their descendants, the legal spouse, parents, and relevant siblings.
Inventory assets and debts. Obtain titles, tax declarations, bank and investment records, corporate documents, loan statements, insurance policies, and business records.
Separate non-estate property. Determine the surviving spouse’s, partner’s, or co-owner’s share before computing inheritance.
Identify the controlling law. Check the decedent’s nationality, religion where the Muslim Personal Laws may apply, residence, marriage regime, and date of death.
Calculate shares using the net hereditary estate. Include relevant lifetime donations and do not rely only on the property’s current title or an informal family agreement.
Select the proper settlement procedure. Do not use self-adjudication or extrajudicial settlement when a will, debt, dispute, or omitted heir makes it inappropriate.
Meet BIR requirements. Obtain the estate TIN, file the proper return, pay or obtain an approved payment arrangement, and secure the eCAR when required.
Register the final transfers. Submit the settlement deed or court order and tax clearances to the Registry of Deeds and other agencies or institutions controlling each asset.
Keep an accounting. Anyone managing estate funds should preserve receipts, statements, rental records, inventories, and proof of every distribution.

Evidence worth preserving

Keep original or certified copies of:

The will, codicils, envelopes, and evidence of custody
Death, birth, marriage, and adoption records
Land titles, deeds, tax declarations, surveys, and real-property tax receipts
Bank, investment, pension, insurance, and corporate records
Loan documents, mortgages, tax assessments, and creditor demands
Prenuptial agreements and records showing when and how property was acquired
Deeds of donation, sales, waivers, prior partitions, and powers of attorney
Receipts for funeral, preservation, tax, and administration expenses
Messages or documents showing threats, concealment, forgery, undue influence, or an admission of an heir’s identity
Photographs and a dated inventory of estate property

Use copies for routine circulation and keep originals secure. Do not sign blank deeds, undated waivers, or a settlement that omits assets or relatives.

Common mistakes

Assuming the eldest child, only son, or child who cared for the parent receives a larger legal share
Treating the surviving spouse’s own property share as part of the inheritance
Omitting a child born outside marriage because the child uses another surname
Excluding an adopted child without examining the adoption order and governing law
Giving grandchildren equal shares while their qualified parent is alive
Believing a handwritten note is automatically enforceable without probate
Using an affidavit of self-adjudication when another heir exists
Publishing an extrajudicial settlement and assuming publication validates an omitted heir’s exclusion
Selling a specific estate property before partition without all required consent or court authority
Distributing cash before confirming debts, taxes, and beneficiary designations
Signing a “waiver” without understanding that a waiver in favor of selected heirs may be treated as acceptance followed by a transfer, with possible tax consequences
Assuming there is no estate-tax return because no tax appears payable
Waiting for the two-year Rule 74 period to expire before asserting an omitted-heir or fraud claim

When legal help is urgent

Consult a Philippine succession lawyer promptly when:

Someone is selling, mortgaging, withdrawing, or transferring estate assets without authority;
An heir, spouse, child, or branch of the family was omitted;
The will may be forged, concealed, destroyed, or obtained through pressure;
The 20-day will-delivery period or one-year estate-tax deadline is running;
A child’s filiation is disputed or the alleged parent has died;
There are competing spouses, a prior marriage, legal separation, or a questioned marriage;
A minor, incapacitated, imprisoned, missing, or overseas heir is involved;
The deceased had foreign citizenship, foreign property, or foreign probate proceedings;
The estate involves Filipino Muslim succession under the Code of Muslim Personal Laws;
Creditors are threatening foreclosure or collection;
A settlement, waiver, deed, or title has already been registered without an heir’s participation; or
There are signs of fraud, adverse possession, destruction of evidence, or imminent dissipation of property.

For a foreign national, Article 16 of the Civil Code generally makes the deceased’s national law controlling as to the order of succession, the amount of successional rights, and the intrinsic validity of testamentary provisions. Probate procedure and the formal validity of a will may involve different rules.

Frequently asked questions

Can a parent leave everything to only one child?

Generally, not if other compulsory heirs survive. The favored child may receive a larger amount only from the disposable portion, while every compulsory heir’s legitime must be protected. A parent may assign an indivisible business or property to one child, but the other compulsory heirs may have to be paid their legitimes in cash.

Do all children inherit equally?

Legitimate and legally adopted children in the same position generally share equally. Under Article 176 of the Family Code, an illegitimate child’s legitime is one-half of a legitimate child’s legitime. Actual intestate distribution in a mixed family must follow the specific concurrence rules and applicable caps.

Does using the father’s surname prove inheritance rights?

Not by itself. Surname use and filiation are related but distinct issues. Heirship depends on legally sufficient proof of filiation, not simply the surname used by the claimant.

Can a live-in partner inherit?

Not automatically as a surviving spouse. The partner may own part of property under co-ownership rules or receive a testamentary gift from the disposable portion, subject to the validity of the will and statutory prohibitions.

Can grandchildren inherit while their parent is alive?

Usually not from that grandparent in intestacy because the nearer relative excludes the more remote. Grandchildren commonly inherit by representation when their parent predeceased the grandparent or cannot inherit for a legally recognized reason.

Can an heir refuse an inheritance?

Yes, but repudiation must occur after death and must be made in a public or authentic instrument or by petition in the estate proceeding. A parent or guardian needs judicial authorization to repudiate a minor’s inheritance. A selective “waiver” in another heir’s favor may legally amount to acceptance followed by a transfer.

Can an omitted heir challenge an extrajudicial settlement?

Yes. Rule 74 expressly states that an extrajudicial settlement is not binding on a person who did not participate and had no notice. The correct remedy and deadline depend on the deed, registration, fraud, possession, and relief requested, so immediate advice is important.

Does an heir personally assume all the deceased’s debts?

No. Estate obligations are paid from estate assets, and an heir’s liability does not exceed the value of property received from the deceased. An heir may nevertheless become personally liable through a separate guarantee, assumption of debt, wrongful distribution, or other independent act.

This article provides general legal information, not legal advice or a determination of any person’s share. Succession results depend on the complete family tree, governing law, documents, property regime, debts, donations, and procedural history. Primary Philippine legal and BIR sources were checked as of July 29, 2026.