In the Philippines, marital infidelity is not merely a ground for domestic discord or civil separation; it is a criminal offense. Rooted in historical Spanish legal traditions, the Revised Penal Code (RPC) of the Philippines penalizes marital unfaithfulness under two distinct crimes based strictly on the gender of the erring spouse: Adultery for wives and Concubinage for husbands.
Understanding the nuances, elements, penalties, and civil implications of these laws is essential for navigating the complex legal landscape of Philippine marriage.
1. Adultery (Article 333, Revised Penal Code)
Adultery is committed by a married woman and by the man who has carnal knowledge of her, knowing her to be married, even if the marriage is subsequently declared void.
Elements of Adultery
For a charge of adultery to prosper, the prosecution must prove the following elements beyond reasonable doubt:
- The woman is legally married.
- She has sexual intercourse with a man other than her husband.
- The man having intercourse with her knows that she is married at the time of the act.
Key Characteristics
- A Single Act is Sufficient: Each individual sexual act constitutes a separate count of adultery. The husband does not need to prove a prolonged affair; a single, proven instance of sexual intercourse is enough to secure a conviction.
- Liability of the Paramour: The male lover is equally liable for adultery, provided he had knowledge of the woman's marital status.
Penalty: The penalty for both the guilty wife and her paramour is prision correccional in its medium and maximum periods (ranging from 2 years, 4 months, and 1 day to 6 years of imprisonment).
2. Concubinage (Article 334, Revised Penal Code)
Concubinage is the counterpart offense committed by a married husband. However, unlike adultery, the mere act of a husband having sexual intercourse with another woman does not automatically constitute concubinage.
Elements of Concubinage
To convict a husband of concubinage, the wife must prove that her husband committed any of the following specific acts:
- He keeps a mistress in the conjugal dwelling; or
- He has sexual intercourse with a woman under scandalous circumstances; or
- He cohabits (lives together as husband and wife) with his mistress in any other place.
Key Characteristics
- Higher Burden of Proof: It is significantly harder to convict a husband of concubinage than a wife of adultery. Simple, clandestine sexual encounters by a husband outside the marital home without "scandalous circumstances" or "cohabitation" do not meet the criminal definition of concubinage.
- Liability of the Mistress: The mistress is not sent to prison. Instead, she faces a unique penalty.
Penalties: > * Husband: Prision correccional in its minimum and medium periods (ranging from 6 months and 1 day to 4 years and 2 months).
- Mistress: Destierro (banishment). She is prohibited from entering a designated radius (typically 25 to 250 kilometers) from the place agreed upon by the court, usually the vicinity of the marital home, for a specified duration.
3. Comparative Summary: Adultery vs. Concubinage
The disparity between how the law treats male and female infidelity is one of the most heavily debated aspects of Philippine criminal law.
| Feature | Adultery (Wife) | Concubinage (Husband) |
|---|---|---|
| Offender | Married woman and her lover. | Married man and his mistress. |
| Requirement of Act | A single act of sexual intercourse is sufficient. | Requires cohabitation, keeping in the conjugal home, or scandalous circumstances. |
| Imprisonment for Spouse | 2 years, 4 months, and 1 day to 6 years. | 6 months and 1 day to 4 years and 2 months. |
| Penalty for Paramour/Mistress | Imprisonment (same as the wife). | Destierro (Banishment; no imprisonment). |
4. Procedural Rules and Defenses (Article 344, RPC)
Because these are classified as private crimes, unique procedural rules apply to their prosecution:
- The Offended Spouse Must File: The criminal case cannot be initiated by the police, neighbors, or relatives. Only the offended spouse can file the complaint.
- Joint Prosecution: The offended spouse must bring the charge against both guilty parties (the erring spouse and the paramour/mistress) jointly, if both are alive. The case cannot be filed against the lover alone while sparing the spouse.
- The Bar of Pardon or Consent: The case will be dismissed if the offended spouse has consented to the infidelity or has expressly or impliedly pardoned the guilty parties.
- Implied Pardon: Continued cohabitation or sexual relations after the discovery of the affair is generally interpreted by courts as an implied pardon.
5. Civil and Family Code Implications
Beyond criminal jail time, marital infidelity carries severe civil consequences under the Family Code of the Philippines:
Legal Separation
Sexual infidelity or perversion is a valid ground for Legal Separation (Article 55, Family Code). If granted:
- The spouses are allowed to live separately, but the marital bond is not severed (they cannot remarry).
- The guilty spouse is disqualified from inheriting from the innocent spouse by intestate succession.
- The guilty spouse forfeits their share of the net profits of the conjugal properties.
Psychological Incapacity (Article 36)
While sexual infidelity per se is not automatically equivalent to psychological incapacity, persistent, habitual, and flagrant infidelity combined with an utter refusal to fulfill essential marital obligations can be used as strong evidentiary symptoms of a deeply rooted psychological incapacity, which may lead to the total declaration of nullity (voiding) of the marriage.
Custody of Children
The law states that no child under seven years of age shall be separated from the mother unless the court finds compelling reasons. Moral depravity, flagrant adultery, and exposing children to an illicit affair are recognized by Philippine jurisprudence as compelling reasons to deny custody to an unfaithful parent.
6. Modern Legal Outlook
The gender disparity between Adultery and Concubinage has been criticized by human rights groups, legal scholars, and lawmakers as discriminatory and violative of the Philippine Constitution's equal protection clause and the Magna Carta of Women.
Repeated legislative bills have been introduced in the Philippine Congress aiming to repeal Articles 333 and 334 of the RPC, seeking to replace them with a single, gender-neutral offense called "Marital Infidelity." However, until such legislative amendments are passed into law, the traditional distinctions and strict requirements of Adultery and Concubinage remain the enforceable law of the land.