Quick answer

“Annulment” and “declaration of nullity” are different court remedies.

A declaration of absolute nullity applies when the marriage was void from the beginning—for example, because a party was below 18, a required marriage license was absent without a lawful exemption, the marriage was bigamous, or a spouse was psychologically incapacitated when the marriage was celebrated.
An annulment applies to a marriage that was valid until annulled because a specific defect existed at the time of the wedding, such as lack of required parental consent, legally defined fraud, force, unsoundness of mind, incurable incapacity to consummate the marriage, or a serious and apparently incurable sexually transmitted disease.

Separation, incompatibility, infidelity, abandonment, abuse, or simply agreeing to end the marriage does not automatically establish either remedy. The petitioner must plead and prove a ground recognized by law. A civil court—not a church tribunal, the spouses, the local civil registrar, or the Philippine Statistics Authority (PSA)—decides whether the marriage is void or voidable.

Do not remarry merely because the spouses have separated or even because the trial court has issued a favorable decision. Wait until the judgment is final, all required property and children-related matters have been completed, the decree has been registered, and counsel has confirmed compliance with the remarriage requirements.

The essential difference

Declaration of nullity	Annulment
The marriage is legally void from the beginning, subject to the legal consequences imposed by law.	The marriage is valid until annulled by a final judgment.
The action or defense generally does not prescribe.	Strict filing periods apply and depend on the ground.
Grounds commonly arise under Articles 35–38 and related provisions of the Family Code.	Grounds provisions are limited to Article 45 of the Family Code.
Psychological incapacity under Article 36 belongs here—not under annulment.	Psychological incapacity is not an annulment ground.

The controlling provisions appear in the Supreme Court E-Library’s official text of the Family Code of the Philippines.

When a marriage may be declared void

A marriage may be void from the beginning when an essential or formal requirement was absent, or when the Family Code or another statute expressly makes it void.

Common grounds under the Family Code

These include:

A party was below 18 at the time of the marriage. Parental permission does not make such a marriage valid. The Prohibition of Child Marriage Law also declares child marriage void from the beginning, regardless of whether it was performed through civil, religious, traditional, or cultural rites.
The solemnizing officer lacked legal authority. An exception may apply if either or both parties honestly believed that the officer had authority.
There was no valid marriage license. This does not apply when the marriage validly fell within a statutory license exemption. A claimed exemption—such as the five-year cohabitation exception—must satisfy all legal conditions, including the absence of a legal impediment throughout the required period.
The marriage was bigamous or polygamous. The narrow rules governing a subsequent marriage after a judicial declaration of presumptive death require separate analysis. A missing spouse, long separation, or personal belief that an earlier marriage was void does not by itself authorize remarriage.
One party was mistaken about the other party’s identity. This is a mistake about the actual person, not merely disappointment about character, finances, social status, or personal qualities.
A subsequent marriage was entered into without completing the requirements imposed after an earlier annulment or declaration of nullity.
The marriage was incestuous or prohibited by public policy. These prohibitions include marriages between ascendants and descendants, brothers and sisters, certain relatives within the fourth civil degree, specified adoptive and affinity relationships, and parties where one killed a spouse to marry the other.
Psychological incapacity existed when the marriage was celebrated.

A missing or erroneous entry in a PSA certificate does not automatically prove that a marriage is void. The underlying records, governing law, circumstances of the ceremony, and evidence of compliance or noncompliance must be examined.

Psychological incapacity under Article 36

Psychological incapacity is a legal concept. It is not merely a psychiatric diagnosis, marital unhappiness, incompatibility, immaturity, irresponsibility, infidelity, refusal to provide support, addiction, violence, or abandonment.

Under the Supreme Court’s current doctrine in Tan-Andal v. Andal, the evidence must establish a durable or enduring aspect of a spouse’s personality structure that makes it genuinely impossible—not merely difficult or undesirable—for that spouse to understand and comply with essential marital obligations. The incapacity must:

be serious enough to exceed ordinary marital difficulty, neglect, refusal, or ill will;
have existed when the marriage was celebrated, although its manifestations may become clear only later; and
be incurable in the legal sense, meaning that the enduring pattern is so persistent in relation to the particular spouse that the marriage cannot function as the law contemplates.

The petitioner must prove the case by clear and convincing evidence, a higher standard than ordinary preponderance of evidence but lower than proof beyond reasonable doubt.

A psychological or psychiatric examination of the allegedly incapacitated spouse is not an absolute legal requirement, and expert testimony is not automatically indispensable. Nevertheless, an expert can be useful when the opinion is properly grounded in reliable facts. Testimony from relatives, friends, household members, colleagues, or others with firsthand knowledge may also be important. What matters is the totality, credibility, and specificity of the evidence.

Grounds for annulment of a voidable marriage

Every annulment ground must have existed when the marriage was celebrated.

Lack of required parental consent

This applies when a party was at least 18 but below 21 and married without the consent required by law. The ground may be lost if, after reaching 21, that party freely continued living with the other spouse as husband or wife.

Unsoundness of mind

Either party was of unsound mind at the time of marriage. The right to annul may be affected if the spouse later regained reason and freely continued marital cohabitation.

Fraud affecting consent

Only the fraud specified by Article 46 qualifies:

nondisclosure of a final conviction for a crime involving moral turpitude;
concealment by the wife that, at the time of marriage, she was pregnant by another man;
concealment of a sexually transmitted disease existing at the time of marriage; or
concealment of drug addiction, habitual alcoholism, homosexuality, or lesbianism existing at that time.

The Family Code’s text uses those terms. Sexual orientation by itself is not listed as an annulment ground; the statutory ground concerns its concealment as defined in Article 46. Other deceit about character, health, rank, fortune, or chastity does not constitute the particular fraud required for annulment.

Force, intimidation, or undue influence

Consent was obtained through force, intimidation, or undue influence. Later free cohabitation after the coercion ended can affect the right to seek annulment.

Physical incapacity to consummate the marriage

A party was physically incapable of consummating the marriage with the other spouse, and the incapacity continues and appears incurable.

Serious and apparently incurable sexually transmitted disease

A party had such a disease when the marriage was celebrated.

Annulment filing deadlines

Missing the applicable period can defeat an annulment case:

No parental consent: The affected party must file within five years after turning 21. A parent, guardian, or person with legal charge may file before the affected party reaches 21.
Unsoundness of mind: The sane spouse who lacked knowledge, certain relatives or guardians, or the affected spouse during a lucid interval or after regaining sanity may file under the conditions stated in Article 47, generally before the death of either spouse.
Fraud: Within five years after discovery.
Force, intimidation, or undue influence: Within five years after it ceased.
Incapacity to consummate or serious incurable sexually transmitted disease: Within five years after the marriage.

Continued free cohabitation after the relevant facts become known or after the impediment ends may amount to ratification for several grounds. Obtain advice promptly rather than calculating a deadline informally.

A direct action for declaration of nullity generally does not prescribe, but delay can still cause lost documents, unavailable witnesses, property complications, and difficulties proving what existed at the time of marriage.

Who may file and where

A direct petition for declaration of nullity is generally filed by a spouse. Standing can become more complicated in bigamous-marriage cases, estate disputes, or proceedings to recognize a foreign judgment. Annulment standing depends on the particular ground and may, in limited situations, include a parent, guardian, relative, or person with legal charge.

The case is filed in the Regional Trial Court branch designated as a Family Court, which has exclusive original jurisdiction under the Family Courts Act.

Venue is ordinarily the Family Court of the province or city where either the petitioner or respondent has resided for at least six months immediately before filing. If the respondent is a nonresident, the rule permits filing where the respondent may be found in the Philippines, at the petitioner’s election.

Proof of genuine residence matters. The judiciary’s OCA Circular No. 63-2019 requires supporting residency documents. A temporary or fabricated address can lead to dismissal and other legal consequences.

How the court process generally works

The governing procedure is the Supreme Court’s Rule on Declaration of Absolute Nullity and Annulment of Voidable Marriages.

The legal ground is identified. Counsel should compare the facts and documents with the exact statutory elements. A difficult marriage is not enough.
A verified petition is prepared. It must state the complete material facts, common children and their ages, the governing property regime, and the properties involved. The petitioner must personally sign the verification and certification against forum shopping; counsel or an attorney-in-fact cannot sign those parts in the petitioner’s place.
The petition is filed in the proper Family Court. The special rule requires six copies and service of a copy on the Office of the Solicitor General and the city or provincial prosecutor within five days, with proof of service submitted within the same period. Current judiciary guidance treats initiatory pleadings differently from later electronic filings, so the filing method and branch requirements should be confirmed before submission. See the Supreme Court’s electronic-filing guidance.
Summons is served on the respondent. The ordinary answer period under the special rule is 15 days after service. If court-authorized publication is required because the respondent cannot be located despite diligent inquiry, the answer is due within 30 days from the last publication.
There is no automatic default judgment. If the respondent does not answer, the marriage is not automatically ended. The public prosecutor investigates possible collusion, and the legal ground still must be proved.
Pretrial is mandatory. The parties ordinarily must appear personally and timely submit their pretrial briefs and evidence. Property, support, custody, and visitation issues may be addressed, but the validity of the marriage itself cannot be settled by compromise.
The court conducts a trial. A confession, joint agreement, stipulation that a ground exists, or the respondent’s silence is insufficient. The judge must evaluate admissible evidence establishing the statutory ground.
The court issues a decision. A favorable decision ordinarily becomes final after 15 days from notice if no proper post-judgment remedy is filed. A party intending to appeal must first file a motion for reconsideration or new trial within 15 days; after its denial, the notice of appeal must be filed within 15 days from notice of the denial.
Property and children-related requirements are completed. When applicable, the court proceeds with liquidation, partition and distribution of property, custody and support orders, and delivery of the common children’s presumptive legitimes.
The decree and related documents are registered. Registration is required in the relevant civil registries and property registries. The prevailing party must report compliance to the court within 30 days after receiving the decree. The PSA explains how to verify and obtain an annotated Certificate of Marriage.

Evidence to collect and preserve

The necessary evidence depends on the ground. Useful records may include:

PSA marriage certificate and Advisory on Marriages;
marriage-license application, license number, and certification from the local civil registrar;
the solemnizing officer’s authority and the church, registry, court, or consular records of the ceremony;
birth certificates and proof of the parties’ ages;
records of prior marriages, deaths, final judgments, or civil-registry annotations;
contemporaneous messages, emails, letters, photographs, calendars, and journals;
medical records lawfully obtained;
bank statements, remittance records, tax documents, titles, contracts, loan records, business records, and proof of contributions to property;
school, medical, and support records concerning the children;
police, barangay, hospital, protection-order, or social-worker records where abuse occurred; and
names and contact details of witnesses with firsthand knowledge, especially people who knew the parties before and during the early marriage.

Keep original documents and unedited digital copies. Preserve message metadata and make secure backups. Do not alter screenshots, coach witnesses, create backdated records, access an account without authority, or secretly obtain protected medical or financial information unlawfully. Fabricated or suppressed evidence can damage the case and create separate liability.

Children, custody, and support

Ending or invalidating the marriage does not end either parent’s duty to support a child. During the case, the court may issue provisional orders on custody, support, visitation, and urgent property administration.

Children conceived or born before the judgment annulling a voidable marriage becomes final remain legitimate. Children conceived or born before finality of a declaration under Article 36 are also legitimate. Different rules may apply to children of marriages declared void on other grounds, subject to statutory exceptions. The exact effect should be determined from the ground, dates of conception and birth, existing acknowledgment or filiation records, and the judgment.

Custody is decided according to the child’s best interests, not as a punishment or reward for either spouse.

Property consequences

A declaration or annulment does not automatically mean that every asset will be divided equally. The result can depend on:

whether the marriage was void or voidable;
the spouses’ marriage settlement and property regime;
whether either party acted in bad faith;
whether the parties were legally free to marry each other;
each party’s actual contribution of money, property, work, or household care;
existing debts and the rights of creditors; and
earlier property judgments or agreements approved by the court.

For some void unions, Articles 147 or 148 on co-ownership apply instead of the ordinary absolute-community or conjugal-partnership rules. Do not sell, mortgage, conceal, or transfer disputed assets to defeat the other party’s rights. Urgent provisional relief may be available if property is at risk.

What these proceedings are not

Not legal separation

Legal separation may allow the spouses to live separately and may affect property, custody, and support, but it does not dissolve the marriage bond and does not permit remarriage.

Not a church annulment

A decree from a religious tribunal may affect religious status but does not by itself change civil status. A civil Family Court judgment is required for civil effects. Conversely, a civil judgment does not automatically determine a person’s status under church law.

Not a substitute for recognizing a foreign divorce

When a marriage involves a foreign spouse and an absolute divorce was obtained abroad, the appropriate remedy may be judicial recognition of that foreign divorce rather than annulment or Article 36 nullity. The Philippine court must receive competent proof of the foreign decree, the foreign spouse’s nationality at the relevant time, and the applicable foreign law allowing divorce and remarriage. The Supreme Court explains these requirements in Republic v. Manalo and its later foreign-divorce decisions.

Special rules for marriages governed by Muslim personal law

The Code of Muslim Personal Laws recognizes particular forms of divorce and assigns jurisdiction to Shari’a courts in cases within its coverage. Conversion alone should not be treated as a shortcut around an existing civil marriage. The dates, parties’ status, manner of celebration, and statutory applicability must be examined carefully.

Common and costly mistakes

Treating every failed marriage as psychological incapacity.
Filing under the wrong ground because it sounds easier or more familiar.
Confusing annulment, nullity, legal separation, foreign-divorce recognition, and church proceedings.
Using a temporary address to manufacture venue.
Waiting until an annulment deadline has nearly expired.
Assuming the respondent must consent or sign before a case can proceed.
Believing that nonappearance produces an automatic judgment.
Filing only a PSA correction request when a direct court action is required.
Omitting property, debts, children, prior marriages, or other material facts.
Relying only on conclusions such as “irresponsible,” “narcissistic,” or “abusive” without concrete events and reliable evidence.
Remarrying after the decision but before finality, registration, and completion of Article 52 requirements.
Accepting a guaranteed result, fixed completion date, or “package” involving fabricated evidence or a predetermined psychologist’s conclusion.

No law sets a universal completion time or total cost. Duration and expense vary with service of summons, publication, court congestion, contested evidence, expert work, property issues, prosecutor and OSG participation, and appeals.

When legal help is urgent

Consult a Philippine family-law practitioner promptly if:

an annulment limitation period may be running;
you received summons and the 15-day answer period has begun;
a spouse is threatening to remarry, hide assets, sell property, or take a child away;
a foreign divorce, prior marriage, missing spouse, or conflicting civil-registry record is involved;
the marriage may have involved a person below 18;
a spouse or child needs immediate support, custody, or medical relief; or
there is violence, stalking, coercion, or a threat to safety.

A nullity or annulment case is not a prerequisite to protection from abuse. Republic Act No. 9262 provides barangay, temporary, and permanent protection orders for qualifying violence against women and their children. See the official Anti-VAWC law and the Philippine Commission on Women’s VAW helplines. For immediate danger, call 911 or contact the nearest PNP Women and Children Protection Desk.

People unable to afford private counsel may ask the Public Attorney’s Office about eligibility or approach an Integrated Bar of the Philippines legal-aid office. Assistance is subject to applicable indigency, merit, conflict, and program rules.

Frequently asked questions

Can both spouses simply agree to an annulment?

No. They may agree on lawful matters such as some property or custody arrangements, subject to court approval, but they cannot create a ground or stipulate that the marriage is invalid. The ground must be independently proved.

Is the respondent’s signature or consent required?

No. Proper service and due process are required, but refusal to cooperate does not necessarily stop the case. It also does not guarantee that the petition will be granted.

Is infidelity enough for psychological incapacity?

Not by itself. Infidelity may be evidence of a broader enduring personality structure, but the required legal incapacity and its existence at the time of marriage must still be established by clear and convincing evidence.

Must the other spouse undergo a psychological examination?

Not necessarily. Current Supreme Court doctrine does not make a personal examination or expert diagnosis an absolute requirement. Whether expert evidence is advisable depends on the case.

Can I file while living abroad?

Possibly, but venue, Philippine residence, personal execution of the verification, authentication formalities, service, and attendance requirements must be planned carefully. Living abroad does not remove the six-month venue rule.

Can I remarry as soon as the judge grants the petition?

No. A trial-court decision is not enough. Wait for finality, the decree, completion of required property and presumptive-legitime matters, registration in the proper civil and property registries, and confirmation that the PSA record has been properly annotated.

Does the case automatically cancel child support?

No. Parental support duties continue regardless of the parents’ marital status.

What if we have been separated for many years?

Lengthy separation alone is not a ground for annulment or nullity. It may supply relevant evidence, but the petitioner must still prove a statutory ground that existed when the marriage was celebrated.

This article provides general Philippine legal information, not advice for a particular marriage, petition, deadline, or safety situation. The controlling law and procedure were checked against official sources through 1 August 2026. Individual outcomes depend on the marriage date, documents, citizenship, applicable personal law, evidence, court orders, and later legal developments.