In the Philippine legal system, a child's surname is not merely a label but a reflection of their legal status—whether they are considered legitimate or illegitimate under the Family Code. Changing a child's surname to that of the biological father is a common legal pursuit, primarily governed by Republic Act No. 9255, which amended Article 176 of the Family Code.
The Fundamental Rule: Illegitimate Children
Under the original text of the Family Code, illegitimate children were required to use the surname of their mother. However, with the enactment of R.A. 9255 in 2004, illegitimate children may now use the surname of their father, provided certain conditions of recognition are met.
1. Criteria for Using the Father's Surname
An illegitimate child can use the father's surname if:
- The father has acknowledged the child through the record of birth appearing in the civil register.
- The father has admitted paternity through an Affidavit of Admission of Paternity (AAP).
- The father has recognized the child in a Private Handwritten Instrument (PHI).
2. The Role of the AUSF
If the child was originally registered under the mother’s surname and the parents now wish to change it to the father's, the mother or the child (if of age) must execute an Affidavit to Use the Surname of the Father (AUSF). This is filed at the Local Civil Registry Office (LCRO) where the birth was recorded.
Administrative vs. Judicial Processes
The path to changing a surname depends largely on whether the change is a correction of a clerical error, a matter of recognition, or a change in status (Legitimation).
| Process Type | Governing Law/Rule | Applicability |
|---|---|---|
| Administrative | R.A. 9255 | For illegitimate children being recognized by the father for the first time or updating records at the LCRO. |
| Administrative | R.A. 9048 | For correcting clerical or typographical errors in the surname. |
| Administrative | Legitimation (Family Code) | When parents were not married at birth but later marry. |
| Judicial | Rule 103 (Rules of Court) | For a substantial change of name (petition filed in court). |
| Judicial | Rule 108 (Rules of Court) | For cancellation or correction of entries in the civil registry involving status. |
Scenario: Legitimation by Subsequent Marriage
If a child was born to parents who were not married at the time of conception (and were not disqualified from marrying each other), and the parents subsequently marry, the child is "legitimated."
- Effect: The child enjoys the same rights as a legitimate child, including the right to use the father’s surname as a matter of course.
- Procedure: An Affidavit of Legitimation executed by both parents must be registered with the LCRO. The original birth certificate is not destroyed; instead, an annotation is made, and a new birth certificate is issued reflecting the father's surname.
Requirements for the Change (Administrative Route)
To effect a change under R.A. 9255 at the Local Civil Registrar, the following documents are typically required:
- Certified True Copy (CTC) of the Child’s Birth Certificate.
- Affidavit of Admission of Paternity (AAP) (if not signed at the time of birth).
- Affidavit to Use the Surname of the Father (AUSF).
- Valid IDs of the parents.
- Certificate of Registration of the affidavits from the LCRO.
Judicial Petition for Change of Name (Rule 103)
If the administrative routes (R.A. 9255 or R.A. 9048) are not applicable—for instance, if the father refuses to recognize the child or there is a dispute regarding paternity—a Judicial Petition may be necessary.
Note: The Philippine Supreme Court has clarified that a change of name is a privilege, not a right. The petitioner must show a compelling reason, such as avoiding confusion, or when the name is ridiculous or extremely difficult to write/pronounce.
- Jurisdiction: Filed in the Regional Trial Court (RTC) of the province where the person resides.
- Publication: The petition must be published in a newspaper of general circulation once a week for three consecutive weeks.
- Hearing: The court will hear the petition, and the Solicitor General (or the Provincial Prosecutor) will represent the State.
Important Considerations
- Consent of the Child: Under current regulations, if the child is 7 to 17 years old, they must execute an attestation that they are aware of the surname change. If the child is 18 years or older, they themselves must execute the AUSF.
- Middle Names: When an illegitimate child changes their surname to the father's, the mother's surname usually becomes the child's middle name.
- Irreversibility: Once a child has been recognized and the surname changed via R.A. 9255, the father cannot unilaterally "withdraw" the recognition to revert the surname.