Short answer. No. Marriage in the Philippines is a special contract whose nature, consequences and incidents are fixed by law and not subject to stipulation. The one thing you may agree on is property: a marriage settlement can fix your property relations, within the limits the Family Code allows.

What the law says

It is the foundation of the family and an inviolable social institution whose nature, consequences, and incidents are governed by law and not subject to stipulation, except that marriage settlements may fix the property relations during the marriage within the limits provided by this Code.

Family Code, Article 1 — Nature of Marriage. Read the full provision →

The law, not the couple, writes the terms

Article 1 of the Family Code describes marriage as a special contract of permanent union between a man and a woman entered into in accordance with law, and then draws the line that answers this question: it is an institution whose nature, consequences, and incidents are governed by law and not subject to stipulation. Ordinary contracts run the other way — the parties supply the terms and the law fills the gaps. Here the content of the relationship arrives fixed. You consent to marriage as the Code defines it, or you do not marry; you cannot consent to a modified version of it that suits the two of you better.

Property is the one thing you may negotiate

The article carves out a single exception: marriage settlements may fix the property relations during the marriage within the limits provided by this Code. A prenuptial agreement is therefore real and enforceable here, but its subject matter is narrow. It chooses the regime that will govern what the two of you own and earn, and it must be made before the celebration of the marriage; afterwards the Code allows changes only in the limited situations it names. Even within property, the freedom is bounded — a settlement cannot be used to defeat rights the Code gives a spouse or a creditor.

What a private agreement between spouses cannot achieve

This is the paragraph most couples need. An agreement that the marriage will end after a fixed number of years, that neither party is obliged to live with the other, that one spouse waives support, or that infidelity carries an agreed penalty, has no legal effect however carefully it is drafted and notarised. The same is true of an agreement to separate: spouses cannot dissolve their own marriage by consent, because the grounds and the procedure for ending a marriage are among the incidents the law reserves to itself. A signed separation agreement may still matter as evidence of what the parties intended about their property, but it changes nobody's civil status.

What to do with this before the wedding

If what you want is control over money and property, the document to prepare is a marriage settlement, and the deadline is the wedding itself. Bring a lawyer a list of what each of you owns coming in, what either of you expects to inherit, and any business one of you runs, because those are the facts that decide whether the default regime is a problem for you. If what you want is control over the personal terms of the marriage, no document will deliver it, and it is far better to learn that before the ceremony than to discover it in the middle of a dispute years later.

Cases citing this provision

These Supreme Court decisions cite the provision above. We list them so you can read them yourself; the summaries of what each decided are not ours to give.

Related provisions

Note. Statute text quoted on this page is reproduced from the official enactment and is linked to the full provision. The explanation around it is general legal information from Vivas & Nobles Law Office, not legal advice. Whether it applies to your situation depends on facts only a lawyer reviewing them can assess.