Legal Consequences of Adultery and Concubinage in the Workplace Under Philippine Law

In the Philippines, the line between private morality and professional conduct is often blurred by stringent legal standards. While matters of the heart are generally considered private, they carry significant weight when they manifest as Adultery or Concubinage within a professional setting. Under Philippine law, these acts are not merely social indiscretions; they are criminal offenses and valid grounds for the severance of employment.


I. Criminal Definitions: Adultery vs. Concubinage

Under the Revised Penal Code (RPC), the law distinguishes between infidelity committed by a wife and that committed by a husband.

1. Adultery (Article 333)

Adultery is committed by any married woman who has sexual intercourse with a man not her husband, and by the man who has carnal knowledge of her knowing her to be married.

  • Key Element: A single act of sexual intercourse is sufficient to constitute the crime.

2. Concubinage (Article 334)

Concubinage is committed by a married man under three specific circumstances:

  • Keeping a mistress in the conjugal dwelling;
  • Having sexual intercourse under scandalous circumstances; or
  • Cohabiting with a mistress in any other place.
  • Key Element: Unlike adultery, a single act of infidelity by a husband is generally insufficient for a criminal conviction of concubinage unless it meets the specific criteria of "scandalous circumstances" or "cohabitation."

II. Administrative and Labor Consequences

In the workplace, the standard of evidence is lower than in criminal court. While criminal conviction requires proof beyond reasonable doubt, administrative or labor cases only require substantial evidence—that amount of relevant evidence which a reasonable mind might accept as adequate to justify a conclusion.

1. Private Sector: The Labor Code

Under Article 297 (formerly 282) of the Labor Code, an employer may terminate an employee for Serious Misconduct or Conduct Unbecoming.

  • Immorality as Serious Misconduct: Jurisprudence (notably Santos vs. NLRC) dictates that for an extra-marital affair to warrant termination, it must be "disgraceful and immoral."
  • The "Work-Related" Requirement: To justify dismissal, the employer must prove that the conduct affects the employee’s fitness to perform their work or that it prejudices the employer's interests (e.g., tarnishing the company’s reputation).
  • Company Policy: Most Employee Handbooks contain a "Code of Conduct" that explicitly prohibits immoral acts. Violation of these policies constitutes willful disobedience of a lawful order of the employer.

2. Public Sector: Civil Service Commission (CSC) Rules

For government employees, the standard is even stricter. "Disgraceful and Immoral Conduct" is a grave offense under the Revised Rules on Administrative Cases in the Civil Service (RRACCS).

  • Penalties: A first offense may result in suspension for six months and one day to one year. A second offense warrants dismissal from the service.
  • Definition of Immorality: The CSC defines it as conduct which is willful, flagrant, or shameless, and which shows a moral indifference to the opinions of the good and respectable members of the community.

III. Professional Licensure Consequences

Beyond losing a job, professionals (lawyers, doctors, teachers, etc.) face the revocation of their licenses to practice.

Profession Governing Body Legal Basis
Lawyers Integrated Bar of the Philippines (IBP) Violation of the Code of Professional Responsibility (Grossly Immoral Conduct).
Teachers Professional Regulation Commission (PRC) Violation of the Code of Ethics for Professional Teachers.
Medical Professionals PRC / Board of Medicine Immoral or dishonorable conduct under the Medical Act of 1959.

For lawyers, the Supreme Court has frequently ruled that a lawyer’s personal life is not completely isolated from their professional life. Maintaining a "concubine" or committing "adultery" can lead to disbarment, as it demonstrates a lack of the "good moral character" required to remain a member of the Bar.


IV. The "Scandalous" Requirement in the Workplace

A common defense in labor cases is that the affair was "private" and did not affect work. However, Philippine courts often rule that if the affair is common knowledge among co-workers, it creates a toxic work environment, affects morale, and sets a poor example.

If the parties involved are both employees of the same company, the situation is exacerbated. This is often treated as a breach of the fiduciary trust placed in employees, especially those in managerial positions.


V. Summary of Legal Risks

  1. Criminal Liability: Imprisonment under the Revised Penal Code (Adultery/Concubinage).
  2. Termination of Employment: Dismissal for "Just Cause" without separation pay.
  3. Administrative Sanctions: Permanent disqualification from holding public office (for civil servants).
  4. Professional Ruin: Stripping of professional titles and licenses.
  5. Civil Liability: Damages under Article 26 of the Civil Code for violating the "peace of mind" and "family relations" of the aggrieved spouse.

While the Philippine legal system continues to debate the decriminalization of adultery and concubinage to align with modern international standards, they currently remain potent tools for both criminal prosecution and administrative discipline in the workplace.

Disclaimer: This content is not legal advice and may involve AI assistance. Information may be inaccurate.