Quick answer

Philippine law provides two different court remedies:

Declaration of absolute nullity applies when a marriage was void from the beginning—for example, because a legal requirement was absent, the marriage was bigamous, the parties were within a prohibited relationship, or a spouse was psychologically incapacitated under Article 36 of the Family Code.
Annulment applies to a marriage that was valid until annulled because a specific defect existed when it was celebrated, such as lack of required parental consent, fraud recognized by law, force, certain mental incapacity, incurable incapacity to consummate the marriage, or a serious and apparently incurable sexually transmissible disease.

Separation, abandonment, infidelity, incompatibility, or mutual agreement does not by itself end a civil marriage. Even a marriage considered void cannot safely be treated as nonexistent for remarriage: Article 40 requires a final court judgment declaring the previous marriage void. The decree must also be properly registered before either party remarries.

Nullity and annulment are not interchangeable

A void marriage is legally defective from its beginning. An action or defense for its declaration of absolute nullity does not prescribe under Article 39, as amended by Republic Act No. 8533.

A voidable marriage remains valid and produces legal effects unless and until a court annuls it. Annulment actions have strict filing periods and may, for several grounds, be barred when the affected spouse freely continues living with the other spouse after the defect has ended or become known.

Neither remedy is the same as:

Legal separation, which permits spouses to live separately and affects property and inheritance but does not sever the marriage bond;
A church annulment, which does not by itself change civil status under Philippine law; or
Judicial recognition of a foreign divorce, which is a separate remedy and may apply when the facts and the parties’ national laws satisfy Article 26 and controlling jurisprudence.

Marriages governed by the Code of Muslim Personal Laws may be subject to different rules.

When a marriage may be declared void

Under Articles 35 to 38 and related provisions of the Family Code, grounds include:

A party was below 18 years old. Parental consent cannot validate the marriage. Republic Act No. 11596 also declares child marriages void from the beginning.
The solemnizing officer lacked legal authority, unless either or both parties believed in good faith that the officer was authorized.
There was no valid marriage license, unless the marriage fell within a genuine statutory exemption. Exemptions include certain marriages in danger of death and marriages satisfying the strict requirements for long-term cohabitation without legal impediment. A false affidavit does not automatically create a valid exemption.
The marriage was bigamous or polygamous, unless it falls within the narrow rules on an absent spouse under Article 41. For remarriage based on absence, the spouse present generally needs a prior judicial declaration of presumptive death and must satisfy the required absence period and well-founded-belief standard.
One party was mistaken about the identity of the other. This means actual identity, not disappointment about character, finances, background, or personal qualities.
A subsequent marriage was contracted without the registrations required by Articles 52 and 53 after a prior annulment or declaration of nullity.
Psychological incapacity under Article 36 existed when the marriage was celebrated, even if it became evident only afterward.
The marriage was incestuous or prohibited for public-policy reasons, including marriages between ascendants and descendants, siblings, certain relatives within the fourth civil degree, and specified adoptive or affinity relationships.
An essential or formal requisite of marriage was absent, subject to the exceptions and legal effects stated in the Family Code.

The exact law in force when the marriage was celebrated can matter, particularly for older marriages.

Psychological incapacity under Article 36

Psychological incapacity is a legal concept, not simply a psychiatric diagnosis and not a general label for a failed marriage.

In Tan-Andal v. Andal, the Supreme Court clarified that the petitioner must prove psychological incapacity by clear and convincing evidence. The evidence must establish:

Gravity: the problem is serious, not merely immaturity, mood changes, occasional outbursts, difficulty, neglect, ill will, or refusal to perform marital duties;
Juridical antecedence: the incapacity already existed when the marriage was celebrated, although its manifestations may have appeared later; and
Legal incurability: the incapacity is enduring and persistent in relation to the spouse and makes genuine compliance with essential marital obligations impossible.

The evidence should show a durable aspect of personality, rooted before the marriage, that produces a consistent inability to understand and perform essential marital obligations. Ordinary incompatibility, infidelity, abandonment, addiction, financial irresponsibility, or abusive conduct is not automatically psychological incapacity. Such conduct may be relevant only when the totality of the evidence connects it to the serious, enduring psychic cause required by law.

A psychologist or psychiatrist is not automatically required, and the allegedly incapacitated spouse need not always be personally examined. Expert evidence may nevertheless be useful, depending on the available witnesses, documents, family history, and disputed facts. A diagnosis alone is not enough; the court decides the legal issue from the totality of admissible evidence.

Grounds for annulment

Article 45 permits annulment only for defects that existed at the time of the marriage:

Ground	Essential condition	Filing period
Lack of required parental consent	A party was at least 18 but below 21 when married without the required consent	The affected spouse: within five years after turning 21; the parent, guardian, or person with legal charge: before the party turns 21
Unsound mind	Either party was of unsound mind when the marriage was celebrated	The persons and periods depend on who files; action generally must be brought during the lifetime of the parties
Fraud recognized by Article 46	Consent was obtained through one of the specific statutory forms of fraud	Injured party: within five years after discovering the fraud
Force, intimidation, or undue influence	Consent was not freely given	Injured party: within five years after the force, intimidation, or undue influence disappeared or ceased
Physical incapacity to consummate	Incapacity continues and appears incurable	Injured party: within five years after the marriage
Serious sexually transmissible disease	Disease existed at marriage, was serious, and appears incurable	Injured party: within five years after the marriage

For statutory fraud, Article 46 recognizes only:

Non-disclosure of a prior conviction by final judgment for a crime involving moral turpitude;
Concealment by the wife that she was pregnant by another man when the marriage was celebrated;
Concealment of a sexually transmissible disease existing at the time of marriage; or
Concealment of drug addiction, habitual alcoholism, or homosexuality or lesbianism existing at the time of marriage.

The statute speaks of concealment; sexual orientation by itself is not a free-standing annulment ground. Other misrepresentations about character, health, social rank, wealth, or chastity do not constitute Article 46 fraud.

Do not assume that a filing period begins from separation. Each ground has its own starting point. Obtain advice promptly if any deadline may be approaching.

Who may file and where

Under the Supreme Court’s Rule on Declaration of Absolute Nullity and Annulment:

A current petition to declare a Family Code marriage void may generally be filed only by the husband or wife.
Annulment may be filed only by the person authorized for the particular Article 45 ground.
Questions involving a spouse’s death, an estate dispute, or a marriage celebrated under an earlier law require separate analysis. If a party dies before entry of judgment in a pending nullity or annulment case, the court generally closes the case, without prejudice to issues that may be addressed in estate proceedings.

The petition is filed in the proper Family Court, or the appropriate Regional Trial Court where no designated Family Court exists. Family Courts have exclusive original jurisdiction over these cases under Republic Act No. 8369.

Venue is generally the province or city where either spouse has actually resided for at least six months immediately before filing. If the respondent is a nonresident, the rule allows filing where the respondent may be found in the Philippines, at the petitioner’s election.

Residence must be genuine. Current court guidelines require detailed addresses and supporting proof, which may include a sworn barangay residence certification with a location sketch, counsel’s sworn verification of residence, utility bills, identification cards, a lease, or rental receipts. Filing in a convenient place where neither spouse truly resides risks dismissal.

How the case proceeds

1. Legal and factual assessment

Counsel should first match provable facts to a precise statutory ground. A petition must allege complete facts, not merely repeat words such as “psychological incapacity,” “fraud,” or “bigamy.”

2. Preparation and filing

The verified petition must identify the spouses, marriage, children, applicable property regime, properties, debts, and requested relief. The petitioner must personally sign the verification and certification against forum shopping; a lawyer or attorney-in-fact cannot sign these solely for the petitioner.

Current Rule 13-A electronic-filing requirements apply to nullity and annulment cases. The initiatory petition is filed by personal submission, registered mail, or accredited courier, followed by electronic transmission of the petition and attachments in PDF to the court within 24 hours after completion of the primary filing. The special rule also requires service on the Office of the Solicitor General and the city or provincial prosecutor within the prescribed period. Counsel should confirm the court’s current official email address, paper-copy requirements, fee assessment, and proof-of-service procedure before filing. See OCA Circular No. 116-2025.

3. Summons and response

The respondent must be formally served. If the respondent cannot be found despite diligent inquiry, the court may authorize publication once a week for two consecutive weeks, together with other court-directed service. A respondent served personally generally has 15 days to answer; one served by publication is directed to answer within 30 days from the last publication.

Failure to answer does not result in an automatic judgment or default. The petitioner must still prove the ground.

4. State participation and collusion investigation

The public prosecutor investigates whether the spouses are colluding or fabricating evidence. The Office of the Solicitor General represents the State’s interest in preserving valid marriages. A case cannot be granted merely because the other spouse agrees, signs an admission, or does not oppose it.

5. Pre-trial and trial

Pre-trial is mandatory. The court identifies disputed issues, witnesses, documents, provisional arrangements, and matters that may lawfully be agreed upon. The ground for nullity or annulment must then be proved through admissible testimony and documents. Judgment on the pleadings, summary judgment, and confession of judgment are not allowed for the marital-status issue.

6. Decision, finality, and appeal

A favorable trial-court decision is not immediately permission to remarry. Under the special rule, parties and the State receive the decision, and a motion for reconsideration or new trial may be filed within 15 days from notice. An appeal requires the prescribed prior motion and a timely notice of appeal after its denial.

Only after the judgment becomes final may entry of judgment and the necessary decree and registrations follow.

7. Property, children, and civil-registry completion

Depending on the ground, property regime, good or bad faith, and applicable law, the court may address:

Liquidation, partition, and distribution of property;
Debts and the rights of creditors;
Custody, support, and visitation;
Delivery of children’s presumptive legitimes where required;
Registration with the appropriate local civil registries and Registry of Deeds; and
Annotation of the marriage record with the Philippine Statistics Authority.

The prevailing party must cause registration of the decree and report compliance to the court within 30 days after receiving it. The PSA’s annotation guidance identifies documents commonly needed for an annotated Certificate of Marriage, including the court decree, proof of finality and registration, and related civil-registry certifications.

Do not remarry until counsel has confirmed that the judgment is final and all applicable Article 52 registration requirements have been completed.

What happens to children and property

Annulment or nullity does not erase parenthood. Both parents remain responsible for their children’s support, and custody is decided according to the children’s welfare—not as an automatic reward to the spouse who obtained the decree.

Children conceived or born before the final judgment of annulment remain legitimate. The Family Code also expressly treats children conceived or born before finality of an Article 36 judgment as legitimate. For other void marriages, the child’s status may differ unless a statutory exception applies; individualized advice is important because legitimacy affects surnames, inheritance, and civil-registry records.

Property consequences are not uniform. They may depend on:

Whether the remedy is annulment, Article 36 nullity, bigamy, or another form of nullity;
The marriage date and any marriage settlement;
Whether one or both parties acted in bad faith;
Whether the applicable arrangement is absolute community, conjugal partnership, or co-ownership under Articles 147 or 148;
The existence of children, creditors, real property, businesses, pensions, insurance, or overseas assets; and
Prior property or support cases.

Never conceal, transfer, mortgage, or dissipate property to defeat the other spouse or creditors. Ask for provisional court orders if support, custody, visitation, or property administration cannot safely wait for final judgment.

Evidence to preserve

Keep original records and secure lawful backups of:

PSA marriage and birth certificates;
Marriage-license records, applications, affidavits, and certifications from the local civil registrar;
Records of prior marriages, death certificates, court judgments, or foreign civil-status documents;
Messages, emails, letters, photographs, calendars, and contemporaneous notes;
Medical, psychological, rehabilitation, police, barangay, or employment records that were lawfully obtained;
Financial records, remittance histories, loan papers, tax documents, land titles, condominium certificates, vehicle records, insurance policies, and business records;
Proof of actual residence for the six months before filing;
Names and contact information of witnesses with firsthand knowledge, including people who knew the spouses before the marriage; and
Evidence relevant to children’s care, schooling, health, expenses, and existing living arrangements.

Preserve complete conversations rather than selected screenshots. Do not hack accounts, impersonate another person, secretly alter files, coach witnesses, or obtain confidential records unlawfully. Keep originals unchanged and record when, where, and from whom each document was obtained.

Common mistakes

Using “annulment” for every failed marriage without identifying the correct legal remedy;
Treating infidelity, abandonment, incompatibility, or abuse as automatic Article 36 grounds;
Filing after an annulment deadline has expired;
Inventing a Philippine residence or using a “friendly” court;
Assuming an uncontested case will be granted;
Paying a fixer who promises a guaranteed result or a decree without trial;
Relying only on a psychological report with no credible factual foundation;
Ignoring children, debts, property, creditors, or prior marriages in the petition;
Giving an incorrect address for the respondent instead of documenting diligent efforts to locate them;
Deleting messages or modifying electronic evidence;
Assuming a church decree changes PSA records; or
Remarrying after receiving a decision but before finality, issuance and registration of the decree, and completion of applicable property and civil-registry requirements.

When legal help is urgent

Seek a Philippine family-law lawyer immediately if:

An annulment filing period may expire soon;
A spouse is threatening violence, coercion, child removal, or destruction of evidence;
Property is being sold, mortgaged, hidden, or transferred;
Either spouse plans to remarry;
A spouse is missing, abroad, seriously ill, or has died;
There is a prior marriage, foreign divorce, foreign annulment, or foreign spouse;
A marriage license or civil-registry record appears false, missing, or inconsistent;
Criminal exposure for bigamy, falsification, violence, or another offense is possible; or
Immigration, inheritance, pension, insurance, or citizenship rights depend on marital status.

If there is violence or an immediate threat, prioritize safety rather than waiting for the marriage case. Contact law enforcement, the barangay, or the appropriate DSWD or LGU service. Women and their children may seek barangay, temporary, or permanent protection orders under Republic Act No. 9262. A protection case can proceed separately from nullity or annulment.

Frequently asked questions

Can spouses obtain annulment simply by agreeing?

No. The State participates through the prosecutor and Office of the Solicitor General, and the legal ground must be independently proved. Collusion or fabricated evidence may cause dismissal.

Is a psychological evaluation always required for Article 36?

No. The Supreme Court has ruled that psychological incapacity is a legal concept and expert testimony is not mandatory. An expert may still materially assist the case when supported by reliable facts and witnesses.

Can the case succeed if the other spouse refuses to participate?

Possibly, but refusal does not prove the ground. Proper service remains necessary, and the petitioner must present sufficient admissible evidence. The respondent is not automatically declared in default.

Can an OFW or overseas Filipino file?

Potentially, but venue, actual residence, notarization or consular execution, electronic filing, service abroad, and proof requirements must be examined carefully. Being a Filipino citizen or owning a Philippine property does not automatically satisfy the six-month residence rule.

Does a foreign divorce automatically change Philippine civil status?

No. A foreign divorce normally must be judicially recognized in the Philippines before it can be annotated and relied on for remarriage. Whether recognition is available depends on citizenship, the foreign law, the decree, and controlling jurisprudence.

How long does the case take, and how much does it cost?

There is no guaranteed national timeline or single fixed total cost. Duration depends on summons, publication, court calendars, prosecutor and OSG participation, witnesses, expert evidence, property issues, and appeals. Costs may include assessed court fees, legal fees, publication, document procurement, expert services, property proceedings, and civil-registry registration. Obtain a written engagement specifying what is and is not included.

When is a person legally free to remarry?

Only after the proper judgment is final and the decree, entry of judgment, property-related documents, and civil-registry records have been completed and registered as required. An unannotated PSA certificate does not necessarily mean nothing was filed, but it is a warning to verify completion before remarriage.

Official sources

This article provides general legal information, not legal advice or a prediction of any case’s outcome. The correct remedy depends on the marriage date, governing law, pleadings, admissible evidence, and personal and property circumstances. Sources and procedures were checked as of July 25, 2026.