Understanding Psychological Incapacity (Article 36) in the Philippines: What Changed After Tan-Andal v. Andal
- DP Law

- Jul 17
- 5 min read
What the Supreme Court's 2021 Ruling Means for Anyone Considering Nullity of Marriage
If you've been researching how to end a marriage that has become truly unworkable, you've probably come across the term psychological incapacity. You may have also heard that pursuing this route means hiring a psychiatrist, undergoing testing, and paying fees that make the whole process feel out of reach. For years, that was largely true. But a landmark 2021 Supreme Court decision changed a significant part of how these cases work.
This guide explains psychological incapacity in the Philippines under Article 36 of the Family Code, what the rule used to require, and what actually changed after the Supreme Court's ruling in Tan-Andal v. Andal. If you're wondering whether your situation might qualify — and whether you really need an expensive psychological evaluation to find out — this article will walk you through what the law now says.
What Is Psychological Incapacity Under Article 36?
Psychological incapacity is a ground for declaring a marriage void from the beginning — meaning the law treats it as if the marriage never legally existed. This is different from annulment, which applies to marriages that started out valid but are later set aside for specific reasons like fraud or lack of parental consent.
Legal basis: Article 36 of the Family Code of the Philippines provides that a marriage contracted by a party who, at the time of the celebration, was psychologically incapacitated to comply with the essential marital obligations, shall be void, even if such incapacity becomes manifest only after the marriage.
In plain terms, the law is asking whether one (or both) spouses had a deep-seated inability — present from the start, even if it only became obvious later — to genuinely fulfill the basic duties of marriage, such as love, respect, mutual support, and fidelity.
The Old Standard: The Molina Guidelines
For over two decades, Philippine courts followed strict guidelines set out in a 1997 Supreme Court case.
Legal basis: In Republic v. Molina (G.R. No. 108763, February 13, 1997), the Supreme Court required that psychological incapacity be medically or clinically identified, alleged in the petition, proven by an expert witness, and shown to be grave, have juridical antecedence (existing at the time of marriage), and be medically or clinically permanent or incurable.
In practice, this meant petitioners almost always needed to hire a psychologist or psychiatrist to assess the spouse — often based on secondhand accounts, since the other spouse would rarely agree to be examined — and testify in court. That made cases slower, costlier, and harder to pursue for many Filipino families.
What Changed: The Tan-Andal v. Andal Ruling
In 2021, the Supreme Court revisited this framework and eased one of its most burdensome requirements.
Legal basis: In Tan-Andal v. Andal (G.R. No. 196359, May 11, 2021), the Supreme Court en banc held that psychological incapacity is a legal concept, not a medical one. As a result, expert testimony from a psychologist or psychiatrist is no longer mandatory in every case.
Under this ruling, a spouse's inability to fulfill marital obligations can now be proven through the observations of ordinary witnesses — family members, close friends, or even the spouses themselves — who can describe a consistent pattern of behavior showing the incapacity. The court still requires that the condition be:
Grave — serious enough to genuinely prevent fulfillment of marital obligations, not just occasional friction or incompatibility
Existing at the time of the marriage (juridical antecedence) — even if it only became clear afterward
Incurable in a legal, not strictly medical, sense — meaning it is so enduring and deeply woven into a person's character, in relation to their specific partner, that the marriage's breakdown becomes practically inevitable
The Court also raised the evidentiary bar in one respect: petitioners must now prove their case by clear and convincing evidence — a standard higher than the ordinary "preponderance of evidence" used in most civil cases, though still lower than "proof beyond reasonable doubt" required in criminal cases.
Molina vs. Tan-Andal: What's Different?
Requirement | Under Molina (1997) | Under Tan-Andal (2021) |
Nature of psychological incapacity | Treated as a medical/clinical condition | Treated as a legal concept |
Expert witness (psychologist/psychiatrist) | Effectively mandatory | No longer mandatory — lay witnesses may suffice |
Who can testify to the condition | Primarily expert witnesses | Family, friends, or the spouses themselves, describing observed behavior |
Incurability | Medically or clinically permanent | Legally enduring and persistent as to a specific spouse |
Standard of proof | Not clearly settled as "clear and convincing" | Explicitly clear and convincing evidence |
Do You Still Need a Psychologist or Psychiatrist?
Not necessarily — but don't assume the easiest path automatically applies to your case. Expert testimony is no longer a strict legal requirement, yet many judges still give real weight to a psychological evaluation when one is available, since it can make a case more persuasive. Whether your case is strong enough on lay witness testimony alone, or would still benefit from an expert opinion, is a judgment call best made with a lawyer reviewing your specific facts.
Common Mistakes to Avoid
Assuming any unhappy marriage qualifies. The law requires more than incompatibility or a spouse who has simply changed — it's looking for a deep, enduring inability to fulfill marital obligations.
Forgetting the juridical antecedence requirement. The condition must trace back to before or at the time of the marriage, even if it only became evident later.
Confusing psychological incapacity with annulment. They involve different grounds and procedures — using the wrong framework can delay a case.
Skipping legal advice because "no expert is needed now." Tan-Andal lowered one barrier, but the clear-and-convincing evidence standard is still significant, and a strong case still takes careful preparation.
Frequently Asked Questions
Do I need a psychologist to prove psychological incapacity?
Not automatically. Since Tan-Andal v. Andal, courts may accept testimony from ordinary witnesses who observed the relevant behavior, though an expert opinion can still strengthen a case depending on the facts.
What is the difference between psychological incapacity and annulment?
Psychological incapacity (Article 36) declares a marriage void — as if it never legally existed. Annulment applies to marriages that were valid at the time but can be set aside for specific grounds like fraud or lack of parental consent.
How long does a psychological incapacity case take?
Timelines vary depending on the court, the evidence, and whether the case is contested. Get a realistic estimate from a lawyer after reviewing your specific situation rather than relying on a general figure.
How much does a psychological incapacity case cost?
Costs depend on filing fees, whether expert testimony is used, and how contested the case becomes. Tan-Andal may lower costs in some cases by reducing reliance on expert testimony, but this varies, so a personalized estimate is more reliable than a general number.
Summary: Psychological Incapacity in the Philippines Today
Psychological incapacity under Article 36 remains a ground for declaring a marriage void, not merely voidable.
The 2021 Tan-Andal v. Andal ruling reclassified psychological incapacity as a legal, not medical, concept, meaning expert psychiatric testimony is no longer strictly mandatory.
Petitioners must still prove gravity, juridical antecedence, and incurability — now assessed through a legal rather than purely clinical lens — by clear and convincing evidence.
Every case is different, and whether expert testimony would still strengthen your case is a decision best made with legal guidance rather than assumptions from what you've read online.

Need Help With a Psychological Incapacity or Nullity Case?
At DPASCUAL Law Office, we assist clients with evaluating whether their situation may qualify for a declaration of nullity under Article 36, preparing the necessary evidence in light of the Tan-Andal ruling, and guiding them through the court process from filing to resolution.
Book an online or onsite consultation today to secure your transaction with legal confidence.


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