The Philippines is the only country in the world (aside from the Vatican) that does not allow absolute divorce for its citizens. Once a marriage is validly contracted, the only legal remedies to end it are (1) annulment of a voidable marriage under Article 45 of the Family Code of the Philippines (Executive Order No. 209, as amended) and (2) declaration of nullity of a void marriage under Articles 35, 36, 37, 38, and related provisions of the same Code. In everyday language, Filipinos commonly refer to the entire process as “annulment,” but the two remedies are technically and procedurally distinct. This article explains every requirement, ground, step, document, cost consideration, effect, and consequence under current Philippine law.

I. Fundamental Distinction Between Annulment and Declaration of Nullity

Annulment (Voidable Marriage) – The marriage is valid until a court annuls it. It exists and produces legal effects until the decree of annulment becomes final. Only the aggrieved party may file within prescribed periods.
Declaration of Nullity (Void Marriage) – The marriage is void ab initio; it never legally existed. No prescriptive period applies. Any interested party (including the State through the Solicitor General) may impugn it, and a judicial declaration is required before either party can remarry.

The most common petition filed in the Philippines today is for nullity under Article 36 (psychological incapacity), which is technically a declaration of nullity but is popularly called “annulment.”

II. Grounds for Annulment of Voidable Marriages (Article 45, Family Code)

A marriage may be annulled only on the following exclusive grounds, and only if the petition is filed within the periods provided:

Lack of Parental Consent (for parties aged 18 but below 21) – The action must be filed within five (5) years after attaining 21. The minor must have been living with parents or guardian at the time of marriage.
Unsound Mind – Either party was of unsound mind at the time of marriage. No prescriptive period if the insane spouse never regains sanity; otherwise, within five (5) years after discovery.
Fraud – Consent was obtained through fraud. The fraud must consist of:
- Non-disclosure of a previous conviction by final judgment of a crime involving moral turpitude;
- Concealment of pregnancy by another man;
- Concealment of a sexually transmissible disease;
- Concealment of drug addiction, habitual alcoholism, or homosexuality/lesbianism. Action must be filed within five (5) years after discovery of the fraud.
Force, Intimidation, or Undue Influence – Consent was vitiated. Action within five (5) years from the time the force or intimidation ceased.
Physical Incapacity (Impotence) – One party was permanently and incurably impotent at the time of marriage. Action within five (5) years after marriage.
Serious Sexually Transmissible Disease – One party was afflicted with an STD that is serious and incurable, and the other party was unaware. Action within five (5) years after marriage.

III. Grounds for Declaration of Nullity of Void Marriages

A. Void from the Beginning (Articles 35, 37, 38)

Below 18 years of age (even with parental consent)
Solemnized by a person not legally authorized (except in cases of authority by estoppel)
Solemnized without a valid marriage license (subject to exceptions in Articles 27–34)
Bigamous or polygamous marriages (unless the first spouse has been declared presumptively dead)
Mistake in identity of the other contracting party
Marriages declared void by the Family Code (e.g., between relatives within the prohibited degrees under Article 37, or void for public policy reasons under Article 38)

B. Psychological Incapacity (Article 36)
The most widely used ground. Both parties must be shown to have been psychologically incapacitated at the time of marriage to comply with essential marital obligations (Article 68). The incapacity must be:

Grave
Juridically antecedent (existing at the time of marriage)
Incurable or permanent
Proven by clear and convincing evidence, usually through expert psychiatric or psychological testimony.

IV. Who May File and Procedural Requirements

Capacity to Sue: The petition may be filed by the aggrieved spouse (for annulment) or by either spouse or any interested party (for nullity). The Solicitor General must always be notified and is given the opportunity to oppose.
Venue: Exclusive jurisdiction lies with the Regional Trial Court (Family Court, if designated) of the place where the petitioner or respondent resides.
Parties: The respondent spouse must be impleaded. If the respondent cannot be located, service by publication is allowed after diligent search.
No Collusion: The court must ensure there is no collusion between the parties. The public prosecutor or Solicitor General represents the State.

V. Documentary and Evidentiary Requirements (Standard Checklist)

Marriage Contract (PSA-certified copy)
Birth Certificates of petitioner and respondent
Latest 3×5 or 2×2 pictures of both parties
Barangay Certification of residency (at least 6 months)
Psychological Evaluation Report (mandatory for Article 36 cases; optional but helpful for other grounds)
Medical or psychiatric records, school records, affidavits of witnesses, police blotters, or any evidence showing the incapacity existed at the time of marriage
Affidavit of Merit (if filing for annulment on fraud or vitiated consent)
Certified true copies of any previous court decisions (e.g., conviction for moral turpitude)
Proof of payment of docket fees (approximately ₱15,000–₱25,000 plus publication costs of ₱8,000–₱15,000)

Additional documents are required if there are children (birth certificates, proof of legitimation) or conjugal property (titles, tax declarations).

VI. The Step-by-Step Judicial Process

Pre-Filing Consultation and Preparation (1–3 months)
Lawyer drafts the petition and gathers evidence.
Filing of Petition
The verified petition is filed with the appropriate Regional Trial Court. Docket fees are paid and a raffle assigns the case to a branch.
Issuance of Summons
The court issues summons to the respondent. If the respondent cannot be found, an order for publication is issued (once a week for three consecutive weeks in a newspaper of general circulation).
Filing of Answer
Respondent has 15 days (or 30 days if by publication) to file an answer. Failure to answer may lead to default, but the State prosecutor still conducts an investigation.
Pre-Trial Conference
Mandatory. The court attempts mediation (usually fails in annulment cases) and defines the issues. Stipulation of facts is encouraged.
Trial Proper
- Presentation of petitioner’s evidence (testimony, psychologist, witnesses).
- Cross-examination by the respondent and the State prosecutor.
- Rebuttal evidence, if any.
  For Article 36 cases, the psychologist must testify in open court and be cross-examined.
Submission for Decision
After the last hearing, the case is submitted for resolution. The judge has 90 days to decide under the Constitution.
Promulgation of Decision
The court either grants or denies the petition. If granted, the decision becomes final only after 15 days (or after appeal is resolved).
Registration and Issuance of Annotated Marriage Contract
The final decree is registered with the Local Civil Registrar and the Philippine Statistics Authority (PSA). The marriage contract is annotated with the annulment/nullity decree. Only after this annotation can either party remarry.

VII. Timeline and Cost Considerations

Ordinary annulment/nullity cases take 2–5 years from filing to finality.
Article 36 cases average 3–7 years because of the need for expert testimony and stricter scrutiny.
Approximate total cost (lawyer’s fees, filing fees, psychologist, publication, miscellaneous): ₱150,000 to ₱500,000 for straightforward cases; ₱800,000 and above for contested or complex cases.

VIII. Legal Effects of the Decree

A. On the Parties

The marriage is dissolved or declared never to have existed.
Both parties are free to remarry after the decree attains finality and is registered.
The woman may resume her maiden name or use the husband’s surname with “née” if she wishes.

B. On Children

Children conceived or born before the decree are considered legitimate (Article 54).
Custody is awarded according to the best interest of the child (usually the mother for children under 7 under the tender-years rule).
Support and visitation rights are determined by the court.

C. On Property

The absolute community or conjugal partnership is liquidated.
If the marriage is void under Article 36, the property regime is governed by the rules on co-ownership (Article 147 or 148).
For void marriages due to bigamy, the innocent spouse retains rights under the applicable property regime.

D. On Inheritance and Insurance

The surviving spouse’s rights cease upon finality of the decree.

IX. Special Rules and Jurisprudence

Republic v. Molina (G.R. No. 108763, 1995) – Established the strict guidelines for psychological-incapacity cases that courts still follow.
Republic v. CA and Molina – The root cause must be medically or clinically identified, proven to exist at the time of marriage, and shown to be incurable.
Recent Trend (post-2010s) – Courts have liberalized slightly by accepting expert testimony from clinical psychologists (not only psychiatrists) and giving weight to behavioral evidence even without full medical diagnosis.

X. Prohibitions and Risks

Simulated or collusive petitions are punishable under the Revised Penal Code (perjury, falsification).
The State prosecutor is required to actively oppose every petition; mere agreement of spouses is insufficient.
Foreign divorces obtained by Filipinos abroad are not recognized unless the Filipino was the alien spouse at the time of divorce (Article 26, Family Code, as interpreted in Republic v. Manalo and subsequent cases).

XI. Alternatives and Related Remedies

Legal Separation (Articles 55–66) – Does not dissolve the marriage but allows separation of bed and board. Grounds are different and include abandonment, physical violence, and moral pressure.
Declaration of Presumptive Death (Article 41) – Allows remarriage if the absent spouse has been missing for the required period.
Annulment of Voidable Marriage Due to Minority – The quickest and simplest when applicable.

In conclusion, annulment or declaration of nullity in the Philippines is a rigorous, lengthy, and expensive judicial process designed to uphold the constitutional policy that marriage is an inviolable social institution. Every requirement—from the specific ground invoked to the registration of the final decree—must be strictly observed. Only after the decree attains finality and the marriage contract is properly annotated with the PSA can the parties consider themselves legally single and free to contract a new marriage.