The key difference is the marriage bond. Legal separation ends the spouses' obligation to live together and separates their property, but the marriage remains valid, so neither spouse may remarry. Annulment (and declaration of nullity) ends or voids the marriage itself, so the parties are free to remarry once the decision is final and annotated. They also have different grounds: legal separation is based on marital offenses during the marriage, while annulment is based on a defect existing at the time of the marriage.
People use “annulment” and “legal separation” interchangeably, but they are different remedies with a decisive difference in outcome. Choosing the wrong one wastes years. Here is how to tell them apart.
The Core Difference: Can You Remarry?
This single question separates the two:
- Legal separation does not dissolve the marriage. The spouses may live apart and their property is separated, but they remain married — neither can remarry.
- Annulment (for a voidable marriage) and declaration of nullity (for a void marriage) end or void the marriage itself. Once the decision is final and the PSA record annotated, the parties are free to remarry.
If your goal is to remarry, legal separation will not get you there.
Different Grounds
The two look at different moments in time:
- Legal separation (Article 55) is based on things that happened during the marriage — repeated physical violence, moral pressure to change religious or political affiliation, attempt to corrupt or induce the spouse or a child into prostitution, drug addiction or habitual alcoholism, homosexuality, bigamy, sexual infidelity or perversion, an attempt against the petitioner’s life, and abandonment for more than one year.
- Annulment (Article 45) is based on a defect existing at the time of the marriage — lack of parental consent (ages 18-21), unsound mind, fraud, force or intimidation, physical incapacity to consummate, or a serious and incurable sexually transmissible disease.
- Declaration of nullity covers marriages void from the start — no license, bigamous, and psychological incapacity (Article 36).
Effects on Property and Children
Both remedies separate the spouses’ property and both address custody and support of the children. But the status of the children differs: children conceived or born of a valid marriage that is later legally separated or annulled are legitimate; children of a void marriage are generally illegitimate, except that children of marriages void under Article 36 (psychological incapacity) are treated as legitimate. In legal separation, the guilty spouse also loses the right to inherit from the innocent one and may forfeit their share of the net profits of the property to the children.
The Cooling-Off Period
Legal separation has a feature annulment does not: a six-month cooling-off period after the petition is filed, during which the court cannot try the case, meant to give reconciliation a chance (this does not apply where violence under RA 9262 is involved). Reconciliation of the spouses ends the legal-separation case.
Which Should You Choose?
Choose legal separation if you want to separate your life and property from an abusive or unfaithful spouse but do not need or want to remarry — it is often faster and its grounds are about conduct you can prove. Choose annulment or nullity if you need to be free to remarry and your facts fit a ground that existed at the marriage. Many people ultimately want the second; a lawyer can tell you whether your facts support it.
Frequently Asked Questions
Can I remarry after a legal separation? No. Legal separation does not dissolve the marriage, so you remain married and cannot remarry. Only annulment or a declaration of nullity ends the marriage and frees you to remarry.
What is the difference in grounds? Legal separation is based on marital offenses that happened during the marriage, such as abuse, infidelity, or abandonment. Annulment is based on a defect that existed at the time of the marriage, such as fraud, lack of parental consent, or psychological incapacity (for nullity).
Are the children affected differently? Children of a valid marriage that is legally separated or annulled remain legitimate. Children of a void marriage are generally illegitimate, except those from a marriage void due to psychological incapacity, who are treated as legitimate.
Which is faster or cheaper? It depends on the facts and the court, but legal separation has a mandatory six-month cooling-off period. The right choice is driven by whether you need to remarry, not just speed, so get your grounds assessed.
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 are deciding between legal separation and annulment, the right choice turns on your goals and your facts, and our firm can help you choose. 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.