Yes. An annulment or declaration of nullity is a civil action that one spouse (the petitioner) can file and pursue even if the other spouse does not consent, refuses to participate, or actively opposes it. Philippine law does not require both spouses to agree before a case can move forward — if it did, an unwilling spouse could simply block the process by staying silent. What the law requires instead is a safeguard against the opposite risk: Article 48 of the Family Code requires the State, through the prosecuting attorney or fiscal, to step in and make sure the parties are not colluding and that evidence is not fabricated or suppressed. This is also why no annulment or nullity case can ever be decided on a mere stipulation of facts or a confession of judgment — even an uncontested case must still be proven.
Why consent is not a legal requirement to begin with
A common misconception is that annulment works like a mutual decision to end a business partnership — both sides have to agree, or nothing happens. That is not how Philippine law treats it. An annulment (for voidable marriages, under Family Code Article 45) or a petition for declaration of absolute nullity (for marriages void from the start, under Article 36 and related provisions) is a civil action, filed by a petitioner against a respondent, exactly like any other lawsuit. The respondent’s agreement is not a precondition for the court to take the case, hear it, and decide it. If the law required the other spouse’s consent, a spouse who wanted to preserve the marriage for the wrong reasons — to control the other party, to avoid dividing property, or simply out of spite — could indefinitely trap the petitioner by refusing to cooperate. The law does not allow that.
What actually happens when the other spouse does not want the case to proceed
A respondent spouse who disagrees with the petition still has the right to appear, answer, and contest it on the merits — disputing the grounds alleged, presenting their own evidence, and cross-examining the petitioner’s witnesses. But choosing not to exercise that right — refusing to answer, refusing to appear, or simply going silent — does not stop the case from moving forward. It changes the dynamics of how the case is litigated, but it does not give the non-participating spouse a veto.
This is deliberately different from an ordinary civil case for money or property, where a defendant who fails to answer can simply be declared in default and lose by default judgment. Marriage cases are treated with more caution than that, for a different reason explained below — not because the respondent’s silence blocks the case, but because the State does not want a marriage dissolved on a mere technicality or a party’s failure to show up.
The real safeguard: Article 48 and the mandatory role of the State
Family Code Article 48 provides: “In all cases of annulment or declaration of absolute nullity of marriage, the Court shall order the prosecuting attorney or fiscal assigned to it to appear on behalf of the State to take steps to prevent collusion between the parties and to take care that evidence is not fabricated or suppressed. In the cases referred to in the preceding paragraph, no judgment shall be based upon a stipulation of facts or confession of judgment.”
This is the actual legal safeguard built into the process — and notice what it protects against. It is not designed to stop a genuinely unwilling respondent from being “forced” into losing the case. It is designed to stop the opposite scenario: two spouses who both secretly want out of the marriage manufacturing a fake ground, or simply agreeing between themselves that the marriage should end, and asking the court to rubber-stamp that agreement. Because marriage is a matter of public and State interest under the Family Code, the law will not allow a marriage to be dissolved merely because both parties say so, or because one side does not show up to object. The prosecuting attorney’s job is to independently verify, through investigation and by testing the evidence, that the ground alleged is real — regardless of whether the respondent cooperates, opposes, or stays silent.
The identical safeguard exists for legal separation under Article 60: “No decree of legal separation shall be based upon a stipulation of facts or a confession of judgment. In any case, the Court shall order the prosecuting attorney or fiscal assigned to it to take steps to prevent collusion between the parties and to take care that the evidence is not fabricated or suppressed.” The two provisions work the same way, for the same reason.
The practical effect: the petitioner still has to prove the case
Because Article 48 bars a judgment based on stipulation of facts or confession of judgment, a non-participating respondent does not make the petitioner’s job easier. The petitioner must still present competent evidence — testimony, documents, and where relevant, an expert or psychological evaluation — to actually establish the ground alleged, whether that is psychological incapacity, a vitiated marriage license, fraud, or another recognized ground. The prosecuting attorney’s presence exists precisely to test that evidence on the State’s behalf when the respondent does not.
This cuts both ways for anyone evaluating whether to file: a spouse who wants an annulment cannot simply count on the other spouse’s absence to win easily, because the case still has to be proven on its merits with the prosecutor scrutinizing it. But equally, a spouse who wants to prevent an annulment cannot do so by refusing to engage with the process — silence is not a strategy that stops the case.
What this means if you are the one being served a petition
A spouse who receives a summons for an annulment or nullity petition and does not want the marriage to end still has real options: filing an answer, participating in hearings, presenting evidence contesting the alleged ground, and raising any available defense. Choosing to ignore the case entirely is legally risky precisely because it removes your own voice from a proceeding that will continue regardless — with only the petitioner’s evidence and the prosecuting attorney’s independent scrutiny shaping the outcome, rather than your own testimony and evidence as well.
What this means if you are the one filing
A spouse considering filing does not need to secure the other spouse’s agreement first, and should not delay a case simply because the other spouse is expected to refuse to cooperate. What does matter is being prepared to actually prove the ground alleged with real evidence, since the case cannot be won on the respondent’s absence alone — the prosecuting attorney’s mandatory participation exists specifically to prevent that outcome.
Frequently Asked Questions
Can my spouse block an annulment just by refusing to sign anything or cooperate? No. An annulment or nullity petition is a civil action that one spouse can file and pursue without the other's consent. A respondent's refusal to participate does not stop the case from proceeding, though the petitioner must still prove the ground alleged with real evidence.
Does the case become easier to win if my spouse doesn't respond at all? Not automatically. Family Code Article 48 bars any judgment based on a stipulation of facts or confession of judgment in annulment and nullity cases, and requires the prosecuting attorney to independently guard against fabricated or suppressed evidence. The petitioner still has to prove the case on the merits.
Why does a prosecutor get involved in a private annulment case? Because marriage is treated as a matter of State interest under the Family Code. Article 48 requires the prosecuting attorney or fiscal to appear on the State's behalf specifically to prevent collusion between the parties and to make sure evidence isn't fabricated or suppressed -- a safeguard against two spouses agreeing to manufacture a case, not a mechanism to protect an unwilling respondent.
Is this the same rule for legal separation? Yes. Family Code Article 60 imposes the identical collusion safeguard for legal separation cases: no decree may be based on a stipulation of facts or confession of judgment, and the prosecuting attorney must take steps to prevent collusion and guard against fabricated or suppressed evidence.
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.