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Nullity of Marriage Based on Psychological Incapacity: Practical Tips Before You File

By Atty. Jayson A. dela Victoria, Managing Partner  ·  October 7, 2026  ·  8 min read

Many clients come to our office saying they want an "annulment." In most cases, what they actually need is a petition for declaration of nullity of marriage based on psychological incapacity under Article 36 of the Family Code. It is one of the most common family cases we handle, and also one of the most misunderstood. These are the practical points we go through with every client before a petition is filed.

First, understand what the court is actually looking for

Psychological incapacity is not about falling out of love, frequent fighting, or a spouse who simply refuses to change. The question is whether a spouse, at the time of the marriage, was truly incapable of understanding and fulfilling the essential obligations of marriage: living together, mutual love, respect and fidelity, mutual help and support, and the obligations toward the children.

In Tan-Andal v. Andal (G.R. No. 196359, May 11, 2021), the Supreme Court clarified that psychological incapacity is a legal concept, not a medical illness. The incapacity must be shown to be:

The petitioner must prove the case by clear and convincing evidence. That is why preparation matters more than anything else.

Tip 1: Tell us the whole story, starting before the wedding

The most important part of the case is often what happened before the marriage. Because the incapacity must already exist at the time of the marriage, we ask about the spouse's upbringing, family background, past relationships, and behavior during courtship. Patterns such as irresponsibility, violence, extreme dependence, abandonment, or chronic infidelity usually have roots long before the wedding day.

In practice: before your first meeting, write a timeline from the time you met your spouse up to today. It helps us see the pattern quickly and saves you money in preparation time.

Tip 2: The right witnesses can make or break the case

After Tan-Andal, the court may consider testimony from ordinary witnesses who personally saw the spouse's behavior before and during the marriage. The best witnesses are usually people who knew your spouse before you got married: relatives, childhood friends, former classmates, or co-workers. Their testimony is presented through judicial affidavits and they will be cross-examined, so choose people who are truthful, consistent, and willing to appear in court.

Tip 3: A psychologist is no longer required, but is often still helpful

Expert testimony is no longer mandatory, and the court will not require that your spouse be personally examined. Even so, a well-prepared psychological evaluation, based on interviews with you and with people who know your spouse, can help the court connect the behavior to a genuine incapacity. What matters is the quality of the expert's basis and explanation, not the length of the report.

Tip 4: Gather your documents early

Tip 5: File in the right court

Under the Supreme Court's Rule on Declaration of Absolute Nullity of Void Marriages (A.M. No. 02-11-10-SC), the petition is filed with the Family Court of the province or city where the petitioner or the respondent has been residing for at least six months before filing. Either spouse may file, and the action does not prescribe.

Tip 6: Your spouse will be notified, and the State will take part

The case cannot be filed secretly. Your spouse will be served with the petition and may contest it. Even if your spouse does not respond, the court will not simply grant the petition. The public prosecutor is required to investigate whether there is collusion between the spouses, and the State, through the Office of the Solicitor General, takes part to protect the marriage. A case built on exaggerated or invented facts can fall apart at this stage.

Be truthful and consistent. Your testimony, your witnesses' affidavits, and the psychologist's report must tell the same story. Inconsistencies are the quickest way to lose credibility with the court.

Tip 7: Plan for your children and your property

Children conceived or born before the judgment in an Article 36 case remain legitimate. The court will also address custody and support. Property acquired during a void marriage is generally governed by the rules on co-ownership under the Family Code rather than the regular property regimes, so you should take stock of your properties and how they were acquired before filing.

Tip 8: Do not remarry until the process is complete

A favorable decision is not the end. The decision must become final, be registered with the civil registry, and comply with the requirements on property and the children's presumptive legitimes where applicable before the court issues the decree. Remarrying before these steps are completed can expose you to serious legal problems, including a possible charge of bigamy.

Tip 9: A church annulment is a separate process

A declaration of nullity from the Philippine courts has civil effects. An annulment from the Catholic Church tribunal is a separate process with its own requirements. One does not replace the other.

Tip 10: Expect a process, not a quick fix

These cases take time, involving hearings, witnesses, and the participation of the prosecutor and the State. The duration and cost depend on the court, the evidence, and whether the case is contested. We give each client a candid assessment of the strengths and weaknesses of their case before anything is filed.

What we usually ask at the first consultation

Frequently asked questions

Is psychological incapacity the same as a mental illness?

No. Under Tan-Andal v. Andal, psychological incapacity is a legal concept. It does not require a diagnosis of a mental disorder, but it must be grave, already present at the time of the marriage, and enduring.

Do I still need a psychologist?

Expert testimony is no longer mandatory, but it is often still helpful. The court looks at the totality of the evidence, including testimony from people who knew your spouse before the marriage.

Does my spouse have to agree or be examined?

No. Your spouse's consent is not required, and the spouse does not need to be personally examined. Your spouse will, however, be notified of the case and may oppose it.

Are our children affected?

Children conceived or born before the judgment in a case based on psychological incapacity remain legitimate. The court will also resolve custody and support.

Is there a deadline to file?

No. An action to declare a marriage void does not prescribe.

Considering a petition for nullity?

Start with an honest assessment of your case.

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