No — in most cases. Family Code Article 54 provides that children conceived or born before the judgment of annulment or absolute nullity becomes final and executory shall be considered legitimate. This applies both to annulment of a voidable marriage and to a marriage declared void on the ground of psychological incapacity (Article 36). The one ground that produces genuinely illegitimate children from the start is a marriage that was void ab initio for a reason other than Article 36 (for example, a bigamous or incestuous marriage) — and even then, the Family Code's Article 54 exception can still apply where the marriage was void under Article 53's rules on remarriage after a prior marriage's nullity.
The fear behind the question
One of the most common worries raised before an annulment or nullity petition is filed is what happens to the children once the marriage is undone. The word “annulment” sounds, to many people, like the marriage is being erased entirely — and if the marriage never legally existed, does that mean the children born of it are suddenly illegitimate? Family Code Article 54 was written specifically to answer this, and the answer is reassuring for the overwhelming majority of cases.
What Article 54 actually says
Article 54 provides: “Children conceived or born before the judgment of annulment or absolute nullity of the marriage under Article 36 has become final and executory shall be considered legitimate.” It adds that children conceived or born of a subsequent marriage under Article 53 — the provision governing remarriage after a previous marriage was annulled or declared void — are likewise legitimate.
Unpacked, this means two separate protections:
- Voidable marriages annulled under Article 45 (grounds such as lack of parental consent, unsound mind, fraud, or force at the time of the wedding): any children conceived or born before the annulment decree becomes final remain legitimate. This has long been the rule, precisely because a voidable marriage is valid and produces all its civil effects unless and until annulled.
- Marriages declared void for psychological incapacity under Article 36: the law extends the same protection. Even though a marriage void under Article 36 is treated as if it never validly existed, children conceived or born before the nullity decree becomes final are still considered legitimate.
What this does not cover
Article 54's protection is tied specifically to annulment (voidable marriages) and to nullity under Article 36. A marriage that is void from the start for a different reason — for example, because one party was already married to someone else (bigamous marriage), or because the parties are within the degrees of relationship the law prohibits — does not automatically fall under this specific Article 54 protection, and children of such unions are generally treated as illegitimate rather than legitimate, subject to whatever separate legitimation or acknowledgment routes may apply to them as illegitimate children.
Legitimate vs. illegitimate: why it still matters
The legitimacy status the Family Code assigns affects a child's surname, the amount of legitime they are entitled to as a compulsory heir in succession, and parental authority arrangements. This is precisely why Article 54 exists as a deliberate legislative choice: children should not bear the legal consequences of a marital defect that was entirely their parents' doing, and the most common paths to ending a marriage in the Philippines — annulment and Article 36 nullity — are carved out to protect the children's status.
Custody and support are separate questions
Legitimacy status is distinct from custody and support. Regardless of whether children are ultimately classified as legitimate or illegitimate, both parents remain obligated to support them under the Family Code's support provisions, and custody is decided based on the child's best interests, not on the legitimacy question.
Frequently Asked Questions
Do my children become illegitimate if I get an annulment? No, in the great majority of cases. Family Code Article 54 provides that children conceived or born before the annulment or nullity judgment becomes final remain legitimate, whether the marriage was annulled as voidable or declared void for psychological incapacity under Article 36.
What about children of a marriage declared void because it was bigamous? Article 54's specific protection is tied to annulment and to nullity under Article 36. A marriage void from the start for a different reason, such as bigamy, is generally treated differently, and children of such a marriage are usually classified as illegitimate rather than legitimate.
Does legitimacy status affect child support? No. Both legitimate and illegitimate children are entitled to support from their parents under the Family Code, regardless of the marriage's status.
Does the timing of the child's birth matter? Yes — Article 54 protects children conceived or born before the annulment or nullity judgment becomes final and executory. The precise timing can matter in edge cases, which is worth discussing directly with counsel.
This commentary is for general informational purposes only and does not constitute legal advice. For guidance specific to your situation, please consult a licensed attorney.
If you have questions about your rights or options under Philippine law, our firm is available to assist. You may reach us via Viber or WhatsApp, call us at 0995 433 5550, or send an email to vivasnobles@gmail.com. We look forward to hearing from you.