I. Introduction

The Affidavit of Cohabitation is a frequently used legal instrument in the Philippines, particularly in matters involving family relations, property regimes between unmarried couples, access to social benefits, and the solemnization of marriage. It serves as a sworn declaration attesting to the existence, duration, and circumstances of a man and a woman living together as husband and wife. Given its widespread use, a critical question arises: does this affidavit carry an expiration date or period of validity under Philippine law? This article provides a comprehensive examination of the topic, grounded in the Family Code of the Philippines, the Rules of Court, notarial rules, principles of evidence, and practical application across various legal and administrative contexts.

II. Definition, Nature, and Primary Legal Basis

An Affidavit of Cohabitation is a written statement executed under oath by the parties concerned, declaring that they have lived together exclusively as husband and wife for a specified period, usually at least five years, and that no legal impediment exists to their marriage. It is typically sworn before a notary public, a judge, a clerk of court, or any other person authorized by law to administer oaths. When properly notarized, it becomes a public document.

The principal statutory basis is Article 34 of the Family Code of the Philippines (Executive Order No. 209, as amended), which states:

“No marriage license shall be necessary for the marriage of a man and a woman who have lived together as husband and wife for at least five years and without any legal impediment to marry each other. The contracting parties shall state the foregoing facts in an affidavit before any person authorized by law to administer oaths. The solemnizing officer shall also state in an affidavit that he ascertained the qualifications of the contracting parties and found no legal impediment to the marriage.”

This provision creates an exception to the general rule under Article 3 of the Family Code that a valid marriage requires, among other essential requisites, a valid marriage license. The affidavit substitutes for the license by establishing the parties’ compliance with the five-year cohabitation requirement and the absence of impediments under Articles 35, 36, 37, 38, and 39 of the Family Code (void and voidable marriages).

The affidavit must reflect that the cohabitation was continuous and immediately preceding the intended marriage. It is not merely historical; it must support the conclusion that the qualifying period exists up to the moment of solemnization.

III. Other Legal Contexts Where the Affidavit is Used

Beyond marriage license exemption, the Affidavit of Cohabitation or a substantially similar “Joint Affidavit of Common-Law Spouses” is employed in:

Property relations under Articles 147 and 148 of the Family Code. Article 147 governs cohabitation between parties capacitated to marry each other (no legal impediment), providing for equal sharing of wages, salaries, and properties acquired through their joint efforts. Article 148 applies when a legal impediment exists. An affidavit helps establish the fact and duration of cohabitation to determine which regime governs and to prove contributions to acquired properties.
Claims for social security, retirement, survivorship, and other benefits before the Social Security System (SSS), Government Service Insurance System (GSIS), and PhilHealth, where common-law spouses may be qualified beneficiaries.
Housing loan applications and membership benefits with Pag-IBIG Fund.
Judicial and extrajudicial settlement of estates, where an alleged common-law spouse seeks to participate in intestate succession or to claim under Article 147/148.
Support proceedings, custody disputes, or actions for declaration of nullity of marriage (to prove prior cohabitation or bigamous relationship).
Certain administrative and immigration-related applications where proof of a stable relationship is required.

In all these contexts, the affidavit functions as evidence of the factual existence of cohabitation rather than as a standalone grant of rights.

IV. Does the Affidavit Expire? Statutory and Doctrinal Analysis

Philippine law does not prescribe any expiration period, validity term, or automatic lapse for an Affidavit of Cohabitation. No provision in the Family Code, Civil Code, Revised Penal Code, Rules of Court, or the 2004 Rules on Notarial Practice (A.M. No. 02-8-13-SC) imposes a temporal limit on the legal effect of such an affidavit.

An affidavit is fundamentally different from time-bound instruments such as:

A marriage license, which is valid for 120 days from issuance under prevailing civil registry practice and administrative regulations implementing the Family Code.
Professional licenses, permits, or clearances that carry explicit validity periods in their enabling laws or implementing rules.
Medical certificates or police clearances routinely required to be recent (e.g., within six months).

Because an affidavit is a sworn declaration of facts, its legal character is fixed at the moment of execution. It does not “expire” in the manner of a license or authority that must be periodically renewed. The statements it contains are either true or false as of the date it was sworn; the passage of time does not retroactively invalidate the document itself.

However, the relevance and sufficiency of the affidavit are time-sensitive in specific applications:

Under Article 34, the five-year cohabitation must exist immediately preceding the marriage. If a significant interval occurs between execution of the affidavit and the wedding, the original affidavit may no longer accurately establish the required continuous period. The solemnizing officer retains the duty to ascertain qualifications and may require a fresh affidavit. While the old affidavit remains formally valid, relying on it alone could expose the marriage to later challenge on the ground that the exemption was improperly granted.
In property or succession claims under Articles 147 and 148, an affidavit executed many years earlier remains admissible as evidence of the facts it recites for the period it covers. Its weight, however, may be diminished if contradicted by more recent evidence (e.g., proof of separation, new relationships creating impediments, or inconsistent declarations). Courts weigh all evidence together; the affidavit does not lose admissibility merely because of age.

V. Evidentiary Character and Probative Value

As a notarized public document, an Affidavit of Cohabitation enjoys the presumption of regularity in its execution and due authentication (Rules of Court, Rule 132, Sections 19–23). It may be presented in evidence without the necessity of proving its execution by the attesting officer in many instances. Nevertheless, the substantive statements remain open to rebuttal.

The Rules of Court treat affidavits as generally inferior to oral testimony because they are ex parte and not subject to cross-examination at the time of execution. If the affiant is available, he or she may be subpoenaed; inconsistencies between the affidavit and subsequent testimony can affect credibility. The mere passage of years does not trigger any rule of automatic exclusion or diminished formal validity.

VI. Agency Practices and Administrative Requirements

Certain government agencies have adopted internal guidelines requiring supporting affidavits to be “recent” (commonly within six months or one year of application). These are processing requirements imposed for administrative convenience and fraud prevention, not legal rules that render older affidavits void or expired. An older affidavit may still be submitted and considered together with other corroborative evidence (joint bank accounts, utility bills, birth certificates of children, affidavits of disinterested witnesses, photographs, etc.). Agencies retain discretion to request updated documents when circumstances warrant.

VII. Supersession, Correction, and Consequences of False Statements

A party may execute a subsequent affidavit that corrects, clarifies, or supersedes an earlier one. The original document is not thereby cancelled or invalidated; both may coexist in the records, and any discrepancy may be explained. There is no statutory mechanism analogous to the revocation of a will or power of attorney.

Willfully false statements in an affidavit, when material to a legal proceeding, may constitute perjury under Article 183 of the Revised Penal Code, punishable by imprisonment. This penal consequence attaches to the act of swearing falsely, not to the age of the document.

VIII. Practical and Procedural Considerations

Although no statutory expiration exists, best practices to preserve utility include:

Executing the affidavit as close as practicable to the date it will be used, especially for Article 34 marriages.
Ensuring complete notarial formalities: personal appearance of the affiants, proper identification, full notarial acknowledgment, and indication of the notary’s commission number and expiry (the notary’s commission, not the affidavit, expires).
Retaining original or certified true copies together with supporting contemporaneous evidence.
In long-term cohabitation situations, executing supplemental or periodic affidavits when significant events occur (birth of children, acquisition of major assets, temporary separations).
For court use, being prepared to present the affiant for testimony or to buttress the affidavit with additional proof.

Local civil registrars, solemnizing officers, and agencies may impose their own documentary checklists. These administrative layers do not alter the underlying legal principle that the affidavit itself has no fixed expiration.

IX. Conclusion

Under Philippine law, an Affidavit of Cohabitation does not expire. It remains a valid and admissible public document evidencing the facts sworn to at the time of its execution. Its formal legal existence is not subject to any statutory period of limitation. What changes over time is the sufficiency of the affidavit for particular purposes—most notably the Article 34 marriage-license exemption, where the five-year cohabitation must be shown to have continued immediately up to the date of marriage. In property, succession, and benefits contexts, an older affidavit retains evidentiary value but may require corroboration to establish ongoing or more recent facts.

Parties and practitioners should therefore treat the affidavit as a snapshot of circumstances at a given moment rather than as a perpetual certification. When in doubt about changed facts or the requirements of a specific office or tribunal, a new or supplemental affidavit should be executed. This approach ensures both formal compliance and substantive accuracy without any need to invoke a non-existent expiration rule.