Affidavit of Acknowledgment / Recognition of Filiation (Philippines)
REPUBLIC OF THE PHILIPPINES
AFFIDAVIT OF ACKNOWLEDGMENT AND RECOGNITION OF FILIATION
(Under Article 172, Family Code of the Philippines [E.O. No. 209]; Republic Act No. 9255; OCRG Administrative Order No. 1, Series of 2004)
I, [Father Name], of legal age, Filipino, [Father Civil Status], and residing at [Father Address], after having been duly sworn in accordance with law, hereby depose and state:
1. I am the biological father of the minor child [Child Name], born on [Child DOB] at [Child POB], to [Mother Name], as evidenced by the PSA-certified Birth Certificate with Registry No. [BC Registry No], attached hereto as Annex 'A'.
2. I voluntarily and freely acknowledge [Child Name] as my illegitimate child, and I recognize the child's filiation with me as biological father under Article 172 of the Family Code of the Philippines (Executive Order No. 209) and Republic Act No. 9255.
3. Regarding the use of surname: [Surname Authorization].
4. Upon filing of this Affidavit of Acknowledgment with the Local Civil Registrar and annotation of the Birth Certificate of [Child Name], the child shall henceforth be known as [Child New Name], with my surname as the child's family name and the mother's maiden surname [Mother Name] as the middle name, in accordance with RA 9255 and OCRG Administrative Order No. 1, Series of 2004.
5. I am executing this Affidavit of my own free will and volition, without force, intimidation, or undue influence from any person, for the purpose of establishing my paternity and the filiation of the child [Child Name], and to enable the child to exercise all rights as my acknowledged illegitimate child under Philippine law.
IN WITNESS WHEREOF, I have affixed my signature on [Affidavit Date].
[Father Name]
Affiant / Biological Father
JURAT
SUBSCRIBED AND SWORN to before me, a Notary Public, on [Affidavit Date], affiant exhibiting to me a valid government-issued identification document.
NOTARY PUBLIC
Doc. No. ____; Page No. ____; Book No. ____; Series of ____.
Biological Father
________________
Signature
What Is a Affidavit of Acknowledgment / Recognition of Filiation (Philippines)?
An Affidavit of Acknowledgment / Recognition of Filiation in the Philippines records a sworn statement of fact made by the deponent, affirmed before an authorised officer for use as evidence.
Filiation — the legal relationship between a parent and child — is established under the Family Code either as legitimate (children born within a valid marriage under Articles 163-164) or illegitimate (children born outside of a valid marriage under Article 165). For illegitimate children, filiation with the father must be established through: (a) the record of birth appearing in the civil register (if the father was named in the birth certificate with his consent); (b) an admission of filiation in a public document or a private handwritten instrument signed by the parent concerned under Article 172(2); or (c) open and continuous possession of the status of an illegitimate child, or any other means allowed by the Rules of Court and special laws under Article 172(3).
Republic Act No. 9255 amended Article 176 of the Family Code to allow illegitimate children, upon the father's express recognition, to use the father's surname as recorded in the civil register. The father's recognition is effected through the Affidavit of Acknowledgment filed with the Local Civil Registrar, which then annotates the child's birth certificate. Administrative Order No. 1, Series of 2004 (OCRG Implementing Rules for RA 9255) governs the administrative procedure.
Recognition of filiation does not confer legitimate status on the child — the child remains illegitimate — but grants the right to use the father's surname, receive support from the father under Article 195 of the Family Code, and inherit from the father as an illegitimate child under Article 895 of the Civil Code (one-half the share of a legitimate child).
The legal framework governing the Affidavit of Acknowledgment / Recognition of Filiation (Philippines) in Philippines draws on several key statutes and regulatory bodies. Under Philippine law, the Civil Code of the Philippines (Republic Act No. 386) governs contractual obligations. The Revised Corporation Code (Republic Act No. 11232) regulates corporate entities through the Securities and Exchange Commission (SEC). The Labor Code of the Philippines (Presidential Decree No. 442) and Department of Labor and Employment (DOLE) govern employment matters. The Data Privacy Act of 2012 (Republic Act No. 10173) and the National Privacy Commission (NPC) protect personal data. The Bureau of Internal Revenue (BIR) administers tax obligations under the National Internal Revenue Code. Parties executing a Affidavit of Acknowledgment / Recognition of Filiation (Philippines) in Philippines should confirm the document reflects current law, including any amendments enacted since the original drafting date. The Civil Code of the Philippines (RA 386) sets the foundational requirements.
When Do You Need a Affidavit of Acknowledgment / Recognition of Filiation (Philippines)?
An Affidavit of Acknowledgment and Recognition of Filiation in the Philippines is needed in specific circumstances involving the establishment of an illegitimate child's legal relationship with the biological father.
An Affidavit of Recognition is filed when a child was born outside of marriage and the father's name was not included in the birth certificate at the time of registration — either because the parents were unmarried, the birth was registered by the mother alone, or the Local Civil Registrar excluded the father's name under Administrative Order No. 1, s. 2004, which prohibits entering the father's name without his written authorization.
An Affidavit of Recognition is needed when the biological father voluntarily wishes to acknowledge his illegitimate child and authorize the child to use his surname under Republic Act No. 9255, even if the father was not present at the birth registration.
An Affidavit of Recognition is required for support claims: establishing filiation through acknowledgment creates an obligation of the father to provide financial support to the illegitimate child under Article 195(4) of the Family Code, enforceable through the courts.
An Affidavit of Recognition is needed when the child's education, medical care, or government benefit claims require proof of paternity — such as for SSS or PhilHealth dependent registration, GSIS benefits, or enrollment in the father's health insurance.
An Affidavit of Recognition is filed when the child or mother seeks to establish inheritance rights: a recognized illegitimate child is an intestate heir of the biological father under Article 988 of the Civil Code, entitled to inherit when the father dies without a will, subject to the legitime rules under Article 895.
Parties in Philippines should prepare a Affidavit of Acknowledgment / Recognition of Filiation (Philippines) proactively rather than waiting for a dispute to arise. Courts interpret agreements based on the written terms rather than oral representations. Under Philippine law, the Civil Code of the Philippines (Republic Act No. 386) governs contractual obligations. The Revised Corporation Code (Republic Act No. 11232) regulates corporate entities through the Securities and Exchange Commission (SEC). The Labor Code of the Philippines (Presidential Decree No. 442) and Department of Labor and Employment (DOLE) govern employment matters. The Data Privacy Act of 2012 (Republic Act No. 10173) and the National Privacy Commission (NPC) protect personal data. The Bureau of Internal Revenue (BIR) administers tax obligations under the National Internal Revenue Code. Where the transaction involves regulated activities, prior approval from the relevant authority may be required before execution.
What to Include in Your Affidavit of Acknowledgment / Recognition of Filiation (Philippines)
A valid Affidavit of Acknowledgment and Recognition of Filiation in the Philippines must contain the following elements.
Affiant Identity: Full legal name, age, nationality, civil status, and address of the biological father executing the affidavit. The affiant must be of legal age and competent to execute a sworn statement.
Child's Identity: Full name of the child as it appears in the PSA birth certificate, date and place of birth, and PSA birth certificate registry number. Attach the PSA-certified birth certificate of the child as Annex 'A'.
Mother's Identity: Full name and address of the child's biological mother. While the mother does not need to co-sign the Affidavit of Recognition, her identity must be stated for civil registry purposes.
Declaration of Paternity: An express, unequivocal declaration that the affiant is the biological father of the named child; that the child was born of the affiant and the named mother; and that the affiant voluntarily recognizes the child as his own illegitimate child.
Authorization to Use Father's Surname: An express statement under RA 9255 that the affiant authorizes the child to use the father's surname in all official documents, school records, and civil registry entries, as allowed by Administrative Order No. 1, Series of 2004 of the Office of the Civil Registrar General (OCRG).
Notarization: The affidavit must be duly notarized by a Philippine notary public under the 2004 Rules on Notarial Practice, or by a Philippine Consul if the affiant is abroad.
Filing with Local Civil Registrar: Submit the notarized affidavit to the Local Civil Registrar of the city or municipality where the child's birth was registered, together with the PSA birth certificate and both parents' government IDs. The Local Civil Registrar annotates the birth certificate and the PSA issues an updated PSA-certified birth certificate.
Additional compliance elements for a Affidavit of Acknowledgment / Recognition of Filiation (Philippines) used in Philippines include: Under Philippine law, the Civil Code of the Philippines (Republic Act No. 386) governs contractual obligations. The Revised Corporation Code (Republic Act No. 11232) regulates corporate entities through the Securities and Exchange Commission (SEC). The Labor Code of the Philippines (Presidential Decree No. 442) and Department of Labor and Employment (DOLE) govern employment matters. The Data Privacy Act of 2012 (Republic Act No. 10173) and the National Privacy Commission (NPC) protect personal data. The Bureau of Internal Revenue (BIR) administers tax obligations under the National Internal Revenue Code. Forms-legal.com provides this template as a starting point for Philippines-compliant documentation.
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Forms Legal. (2026). Affidavit of Acknowledgment / Recognition of Filiation (Philippines) (Philippines) [Legal document template]. Forms Legal. https://forms-legal.com/philippines/personal/legal-declarations/filiation-recognition-philippines
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title = {Affidavit of Acknowledgment / Recognition of Filiation (Philippines) (Philippines)},
year = {2026},
howpublished = {\url{https://forms-legal.com/philippines/personal/legal-declarations/filiation-recognition-philippines}},
note = {Free legal document template. Based on Civil Code of the Philippines (RA 386)}
}Frequently Asked Questions
No — acknowledging an illegitimate child through an Affidavit of Acknowledgment under Republic Act No. 9255 and Article 172 of the Family Code does not make the child legitimate. Acknowledgment or recognition of filiation establishes the legal parent-child relationship between the biological father and the illegitimate child, but the child's civil status remains 'illegitimate' in the PSA birth certificate and civil registry. The rights that acknowledgment confers include: (1) the right to use the father's surname under RA 9255; (2) the right to receive support from the father under Article 195(4) of the Family Code; and (3) the right to inherit from the father as an illegitimate child, with a share equal to one-half the share of a legitimate child under Article 895 of the Civil Code. To change a child's status from illegitimate to legitimate, the parents must marry — which triggers legitimation under Article 177 of the Family Code — or the father must adopt the child through formal adoption proceedings under Republic Act No. 11642.
No — a mother cannot unilaterally establish the father's paternity through an Affidavit of Recognition in the Philippines. Under Administrative Order No. 1, Series of 2004 (OCRG Implementing Rules for RA 9255) and Section 5 of RA 9255, the mother cannot enter the father's name in the birth certificate without the father's written consent, and the Local Civil Registrar is expressly prohibited from accepting a birth certificate naming a father without his authorization. Paternity may only be established against a reluctant father through judicial proceedings — a petition for compulsory recognition of filiation under Article 173 of the Family Code, filed before the Regional Trial Court Family Court. In such proceedings, the child or the mother (on behalf of the minor child) may introduce evidence such as DNA testing results, open and continuous possession of the status as the father's child, or any other means allowed under the Rules of Court. DNA evidence is admissible in Philippine courts per the 2007 Rule on DNA Evidence (A.M. No. 06-11-5-SC).
An acknowledged or recognized illegitimate child in the Philippines is entitled to inherit from the biological father's estate as a compulsory heir under Article 887 of the Civil Code of the Philippines. Under Article 895 of the Civil Code, an illegitimate child's legitime is one-half of the legitime of each legitimate child. For example, if a deceased father leaves one legitimate child and one acknowledged illegitimate child, the legitimate child's legitime is one-half of the estate, and the illegitimate child receives one-half of the legitimate child's share — or one-quarter of the estate. The illegitimate child also inherits by intestate succession under Article 988 of the Civil Code when there are no legitimate descendants. However, an acknowledged illegitimate child does not inherit from the legitimate relatives of the father (grandparents, uncles, etc.) under Article 992 of the Civil Code — the so-called 'Iron Curtain Rule' — which the Supreme Court upheld in Diaz v. Intermediate Appellate Court (G.R. No. 66574, February 21, 1990).
No — under Article 172 of the Family Code of the Philippines and established jurisprudence, an Affidavit of Acknowledgment of filiation, once executed and registered with the Local Civil Registrar, is irrevocable. The Supreme Court of the Philippines in Vda. de Sy-Quia v. Court of Appeals (G.R. No. L-40186, September 27, 1984) held that voluntary recognition of natural children, once made, cannot be revoked even if the recognizing father later changes his mind. The rationale is that filiation is a matter of biological fact that cannot be undone by a change of heart. If the father believes the acknowledgment was made in error — for example, if he subsequently discovers he is not the biological father — the remedy is to file a judicial action to contest the recognition under the applicable provisions of the Family Code, supported by DNA evidence under the 2007 Rule on DNA Evidence (A.M. No. 06-11-5-SC). Courts will not invalidate a prior acknowledgment without clear and convincing scientific evidence of non-paternity.
A Affidavit of Acknowledgment / Recognition of Filiation (Philippines) does not legally require a lawyer in Philippines, and individuals and businesses may draft and execute the document independently. The Civil Code of the Philippines (RA 386) does not mandate legal representation for the creation or signing of this type of document. However, seeking independent legal advice from a qualified Philippines lawyer is recommended for transactions involving substantial financial value, complex regulatory requirements, or cross-border elements where multiple legal jurisdictions may apply. A lawyer can verify that the document complies with all applicable statutory requirements, identify potential risks specific to the transaction, and confirm that the terms adequately protect the interests of all parties involved. The Supreme Court of the Philippines has jurisdiction over disputes arising from this type of document, and Securities and Exchange Commission (SEC Philippines) may impose additional compliance obligations depending on the nature of the underlying transaction. Professional legal review is particularly advisable where the document will be submitted to government agencies or used as evidence in legal proceedings.
This template is provided for informational purposes only and does not constitute legal advice. Laws vary by jurisdiction and change over time. Consult a qualified attorney for advice specific to your situation.Full disclaimer
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