Adult Adoption Legal Requirements Philippines

Adult Adoption in the Philippines—A Complete Legal Guide


Executive snapshot

Unlike the far better-known rules on adopting a child, adult adoption (a person 18 years or older) is still governed by the Civil Code of the Philippines, Arts. 183-193, interpreted through Rule 99 of the Rules of Court and heard by the Regional Trial Court sitting as a Family Court (R.A. 8369). The more recent statutes—R.A. 8552 (1998), R.A. 9523 (2009), and R.A. 11642 (2022)—all define child as below eighteen; they do not repeal the Civil Code for adult cases. Consequently, adult adoption remains a purely judicial (not administrative) proceeding.


I. Legal foundations

Source Key points
Civil Code, Arts. 183-193 Substantive requisites; effects; grounds for rescission
Rule 99, Rules of Court Pleadings, notice, publication, hearing
R.A. 8369 (Family Courts Act) Jurisdiction of RTC-Family Courts
Const. 1987, Art. XV, §3(1) Legislative mandate to protect the family and its members
Selected jurisprudence Republic v. CA & Ong (G.R. L-30811, 1971); Ching v. LPS (G.R. 196695, 2013); Republic v. Cagandahan (G.R. 166676, 2008—applied by analogy on age-gap waiver)

Note: The Supreme Court’s 2003 Rule on Adoption (A.M. No. 02-6-02-SC) and the 2022 NACC rules under R.A. 11642 expressly limit their coverage to minors; courts still cite Rule 99 in adult cases.


II. Who may adopt (Civil Code art. 184, as construed)

  1. Age & capacity

    • 25 years old and in full civil capacity.
  2. Minimum age difference

    • 16-year gap between adopter and adoptee. The court may reduce the gap for “justifiable reasons” (e.g., step-parent adoption).
  3. Good moral character & resources

    • Must “be of good moral character” and “in a position to support and care for” the adoptee.
    • Criminal record involving moral turpitude is disqualifying.
  4. Married persons

    • Spouses must jointly adopt (save when one spouse adopts his/her own child).
  5. Foreign nationals

    • No statute absolutely bars them, but jurisprudence applies the same RA 8552 safeguards by analogy—three-year continuous Philippine residence immediately preceding the filing, and certification of eligibility from the country of domicile.

III. Who may be adopted

Category Notes
Any person ≥ 18 years Even if married (spouse’s consent required).
Legally incapacitated adult A guardian ad litem will be appointed.
Adult relative Permissible; frequently used for legitimation of step-children once they turn 18.

IV. Consents required

Consent giver Form
Adoptee Personally signed, sworn statement, or in open court.
Spouse of adopter &/or adoptee Written, under oath.
Natural parents Not a statutory requirement for adults, but many judges still direct service of notice “for transparency.”

V. Venue, pleadings, and fees

  1. Venue – RTC-Family Court of the province or city where the adopter resides ≥ 6 months.
  2. Verified petition – Must allege jurisdictional facts, qualifications, and pray for the change of name/registration.
  3. Publication – Once a week for three consecutive weeks in a newspaper of general circulation (Rule 99 §4).
  4. Filing fees – Standard RTC docket fees + Sheriff & publication costs (varies per locality).
  5. Notice to the Solicitor General & Public Prosecutor – Both appear to guard against simulation or fraud.

VI. Typical documentary requirements

Document Source
PSA-issued birth certificates of adopter & adoptee
Marriage certificate or CENOMAR of parties
Medical certificates (physical & mental fitness)
NBI/police clearances
Financial proof (ITR, pay slips, bank certs)
Photographs of parties & joint residence
Written consents (see Sec. IV)
Affidavits of disinterested witnesses attesting to character & capacity

Courts may dispense with a DSWD social case study for adults, but many still require one.


VII. Step-by-step procedure

  1. Pre-filing preparation – gather documents; execute sworn petition.
  2. Filing & docketing – pay fees; case raffled to a Family Court branch.
  3. Court order – sets initial hearing (often 4-6 months out); directs publication & service to OSG.
  4. Publication & posting – sheriff posts at courthouse; publisher submits proof of publication.
  5. Home & background study – court-appointed social worker investigates and reports.
  6. Oppositions – any interested party may file within the period fixed in the order.
  7. Trial/hearingin camera testimony of parties & witnesses; offer of exhibits.
  8. Submission for decision – OSG usually recommends approval if no defect.
  9. Decree of adoption – declares adoptee the adopter’s legitimate child; may grant change of surname.
  10. Civil Registry entries – annotated on the adoptee’s birth certificate; new certificate issued.
  11. Passport & ID updates – DFA, PhilSys, SSS, GSIS, etc., accept the amended PSA record.

VIII. Legal effects of a granted adult adoption

Area Effect
Status & surname Adoptee becomes a legitimate child; usually bears adopter’s surname unless court orders otherwise.
Parental authority Symbolic—adult no longer under parental control, but civil code speaks of “respect and support.”
Support & maintenance Reciprocal duty continues (§188).
Succession Adoptee becomes a compulsory heir; shares equals those of legitimate natural children (Civil Code arts. 888, 1768).
Relationship to natural parents Still a legal heir of natural parents (art. 189) but legitime of natural parents’ legitimate children may not be reduced.
Citizenship No automatic Philippine citizenship is conferred; a foreign adult adoptee must still naturalize.
Other civil effects Impediments to marriage (e.g., adopted child cannot marry adopter), survivor benefits, insurance designation, etc.

IX. Rescission / revocation

Initiator Grounds (Civil Code art. 191) Effect
Adopter 1) Adoptee’s attempt on life; 2) Cruelty or grievous insults; 3) Abandonment without just cause for ≥ 3 years Revives rights with natural family; property already vested in adoptee generally remains acquired.
Adoptee None under Civil Code. Some courts allow by analogy to R.A. 8552: abuse or abandonment by adopter. Same as above.

Procedurally, revocation follows Rule 99 mutatis mutandis, with annotation of the order in the civil registry.


X. Tax and property notes

  1. Estate tax – Adopted adult’s legitime dilutes shares of other heirs but is nonetheless recognized.
  2. Donor’s tax – Transfer of property to adopted child is not a donation if it takes effect mortis causa; inter vivos transfers follow usual donor’s-tax rules.
  3. Real-property registration – Present the decree and amended birth certificate to LRA/RD when updating titles held in common.

XI. Common practical issues & tips

Issue Practitioner tip
Insufficient 16-year age gap File motion to waive gap with detailed justification (close affinity, prior parental relationship).
Foreign spouse’s joint adoption Secure authenticated Certificate of Legal Capacity to Adopt from foreign embassy/consulate.
Purpose seen as inheritance-driven Include affidavits emphasising long-standing filial relationship, not purely economic motives.
Publication cost Parties may move to publish in a lower-circulation but still “general” newspaper to save fees.
Effect on visas / migration Explain early that PH adoption ≠ derivative citizenship abroad; adoptee may need to re-apply as family-based immigrant.

XII. Conclusion

Adult adoption in the Philippines is a niche but powerful mechanism to formalise long-standing parental bonds, legitimize step-children who have reached majority, or secure succession rights for dependents. While the 2022 shift to an administrative system simplified child adoptions, adult cases remain firmly court-driven under mid-20th-century Civil Code rules—meaning rigorous pleading, publication, and judicial scrutiny still apply. Mastery of these legacy provisions, plus current Family-Court practice, is essential for counsel and parties alike.

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