Getting an annotated PSA birth certificate for a child born out of wedlock usually means one of two things: the child’s birth record must show the father’s legal acknowledgment and, if chosen, the child’s use of the father’s surname under Republic Act No. 9255; or the child must be legitimated after the parents later validly marry. The process is not completed by simply ordering a new PSA copy. In most cases, you first file the proper documents with the Local Civil Registry Office (LCRO) where the birth was registered, or with a Philippine Embassy or Consulate if the relevant act is done abroad, then wait for the annotated record to be transmitted to and reflected by the Philippine Statistics Authority (PSA).

What Is an Annotated PSA Birth Certificate?

An annotated PSA birth certificate is a PSA-issued copy of a birth record that contains a note, usually on the margin or remarks portion, showing a legal change or legal fact affecting the original birth record.

For a child born out of wedlock, the most common annotations are:

Situation	Common annotation	Effect
Father acknowledges the child and the child will use the father’s surname	Acknowledgment / “The child shall be known as…” under RA 9255	Allows use of the father’s surname, but does not make the child legitimate
Parents were unmarried at birth but later validly married each other	Legitimation by subsequent marriage	Child becomes legitimated and enjoys the rights of a legitimate child
Father acknowledged the child but surname remains the mother’s	Acknowledgment only	Establishes recognition but child may still use mother’s surname
Birth details are wrong or incomplete	Correction, supplemental report, or court-ordered annotation	Depends on the error and legal remedy used

This distinction matters. Many parents say, “I want the PSA birth certificate annotated,” but the LCRO will ask: annotated for what purpose? The documents and legal effect are different for RA 9255 acknowledgment, use of the father’s surname, and legitimation.

Legal Basis for Children Born Out of Wedlock in the Philippines

Under the Family Code, children conceived and born outside a valid marriage are generally considered illegitimate, unless the law provides otherwise. Illegitimate filiation may be established using the same kinds of evidence used for legitimate children, including the record of birth, a public document, or a private handwritten instrument signed by the parent. (Lawphil)

Article 176 of the Family Code, as amended by Republic Act No. 9255, provides that illegitimate children are under the parental authority of their mother and are entitled to support. It also allows an illegitimate child to use the father’s surname if the father expressly recognizes the child through the civil registry birth record, a public document, or a private handwritten instrument. (Supreme Court E-Library)

The Supreme Court clarified in Grande v. Antonio, G.R. No. 206248, February 18, 2014, that using the father’s surname is permissive, not compulsory. A father cannot force an illegitimate child to use his surname merely because he acknowledged the child. The Court emphasized that Article 176 uses the word “may,” and the child’s best interest remains important. (Supreme Court E-Library)

Legitimation is different. Under Articles 177 and 178 of the Family Code, as amended by Republic Act No. 9858, a child conceived and born outside wedlock may be legitimated if the parents were not disqualified from marrying each other at the time of conception, or were disqualified only because either or both were below 18 years old, and they later enter into a valid marriage. Legitimation takes place by the subsequent valid marriage of the parents. (Philippine Statistics Authority)

First, Identify Which Process Applies

Before preparing documents, determine the exact situation.

1. The father acknowledged the child, but the child still uses the mother’s surname

This is the usual RA 9255 / Affidavit to Use the Surname of the Father situation.

Example: The child’s PSA birth certificate shows the mother’s surname. The father later signs an affidavit of acknowledgment, and the mother or child wants the child to use the father’s surname.

In this case, you usually need:

Affidavit of Admission of Paternity or another valid proof of acknowledgment; and
Affidavit to Use the Surname of the Father (AUSF).

The PSA states that if a birth certificate is already registered under the mother’s surname and the father executed an affidavit of acknowledgment, the affidavit should be registered with the civil registry office where the birth was registered, and an AUSF should also be executed if the child will use the father’s surname. (Philippine Statistics Authority)

2. The parents later married each other

This is usually a legitimation situation.

Example: The child was born in 2018 while the parents were not married. The parents married in 2024. If they were legally free to marry each other when the child was conceived, the child may be legitimated.

Legitimation is more powerful than RA 9255 because it changes the child’s civil status from illegitimate to legitimated, with the rights of a legitimate child. Under Article 179 of the Family Code, legitimated children enjoy the same rights as legitimate children, and under Article 180, the effects of legitimation retroact to the time of the child’s birth. (Lawphil)

3. The father is named but did not properly acknowledge the child

Sometimes the father’s name appears on the birth certificate, but the required signature or acknowledgment is missing. In practice, the LCRO may require a proper affidavit of acknowledgment, a private handwritten instrument, or other supporting documents before annotating the record.

Do not assume that merely typing the father’s name on the birth certificate is enough. The LCRO will check whether the father legally recognized paternity in the manner required by law and PSA rules.

4. The child was born abroad

If the child was born abroad to a Filipino parent, the Philippine civil registry document is usually a Report of Birth (ROB) filed through the Philippine Embassy or Consulate. PSA rules recognize the Report of Birth as the prescribed form for declaring the birth abroad of a person born to Filipino parent/s for Philippine civil registration purposes. (Philippine Statistics Authority)

For children born abroad, the process often involves the Philippine Foreign Service Post first. Some consulates state that the PSA copy may become available months after consular registration and transmittal. (Philippine Embassy Australia)

How to Get an Annotated PSA Birth Certificate Under RA 9255

Use this process when the child remains illegitimate but wants to use the father’s surname, or when the father’s acknowledgment must be annotated.

Step 1: Get the latest PSA and local civil registry copies

Start with clear copies of:

The child’s PSA birth certificate;
The child’s local civil registry copy from the city or municipality of birth;
Any existing acknowledgment signed by the father;
IDs of the mother, father, child, or guardian, depending on who will file.

The local copy is important because the LCRO handles the registration and annotation first. The PSA copy is the national certified copy, but the local civil registrar is usually where the correction, legal instrument, or annotation begins.

Step 2: Check the child’s current surname and father’s acknowledgment

Look at the birth certificate carefully:

Is the father’s name listed?
Did the father sign the acknowledgment portion at the back of the Certificate of Live Birth?
Is the child using the mother’s surname?
Is there already a marginal annotation?
Was the birth registered late?
Are the names, dates, and places consistent across documents?

Inconsistencies are a common cause of delay. PSA’s RA 9255 rules state that the civil registrar examines the completeness and correctness of entries and supporting documents; if there are inconsistencies, the documents may not be accepted for registration. (Philippine Statistics Authority)

Step 3: Prepare the Affidavit of Admission of Paternity or proof of recognition

The father may recognize the child through:

The acknowledgment portion of the birth record;
A separate Affidavit of Admission of Paternity;
Another public document where he expressly admits paternity;
A Private Handwritten Instrument (PHI), meaning a document in the father’s own handwriting, signed by him, where he expressly recognizes the child during his lifetime. (Philippine Statistics Authority)

If the father is abroad, it is often cleaner to execute the acknowledgment before a Philippine Embassy or Consulate. If a document is notarized or issued abroad for use in the Philippines, ask the LCRO whether it must be apostilled, authenticated, or executed before the Philippine Foreign Service Post. DFA guidance notes that apostillization by the DFA applies to Philippine public documents for use abroad, while foreign documents follow the authentication rules of the issuing country and applicable Philippine requirements. (Apostille Philippines)

Step 4: Prepare the Affidavit to Use the Surname of the Father

The AUSF is the document that allows the use of the father’s surname. PSA rules define it as a registrable instrument executed in order to use the surname of the father. (Philippine Statistics Authority)

Who signs the AUSF depends on the child’s age:

Child’s age	Who usually executes the AUSF
0 to 6 years old	Mother, or guardian if the mother is absent
7 to 17 years old	Child, with attestation by the mother or guardian
18 years old and above	The child personally, without need of mother’s attestation

This age-based practice appears in PSA’s revised RA 9255 rules and in consular RA 9255 forms. (Philippine Statistics Authority)

Step 5: File the documents with the proper office

For births in the Philippines, file with the LCRO of the city or municipality where the child’s birth was registered. For acts executed abroad, PSA rules allow registration with the Philippine Foreign Service Post of the country of residence, or the nearest one if there is none. (Philippine Statistics Authority)

The usual filing packet includes:

Child’s PSA birth certificate;
Child’s local civil registry birth certificate;
Affidavit of Admission of Paternity or other proof of acknowledgment;
AUSF;
Valid IDs of the signatories;
Authorization letter or Special Power of Attorney, if a representative will file;
Proof of relationship or guardianship, if applicable;
Additional supporting documents required by the LCRO.

Step 6: LCRO registers the legal instrument and annotates the local record

The LCRO records the acknowledgment, PHI, and/or AUSF in the Register of Legal Instruments, annotates the Certificate of Live Birth or Report of Birth, and distributes the annotated copies, including a copy to the Civil Registrar General. PSA rules specifically direct the civil registrar to annotate the COLB/ROB and enter the annotation in the remarks portion of the Register of Births. (Philippine Statistics Authority)

For a previously registered birth under the mother’s surname, the annotation may say that the child shall be known by the full name using the father’s surname pursuant to RA 9255. (Philippine Statistics Authority)

Step 7: Wait for PSA encoding and availability

After local annotation, the LCRO transmits the annotated record to the PSA. The practical waiting time varies by city, province, backlog, and whether documents must pass through a consulate.

Typical real-world estimates:

Stage	Practical timeline
LCRO review and acceptance	Same day to a few weeks, depending on completeness
LCRO annotation and release of local annotated copy	A few days to several weeks
Transmittal and PSA availability	Commonly 2 to 4 months for local cases
Consular Report of Birth or overseas documents	Often several months; some consulates advise 6 months to 1 year before PSA availability

Do not order a PSA copy immediately after filing unless the LCRO confirms that the annotated record has already been transmitted and processed. Otherwise, you may simply receive the old, unannotated version.

Step 8: Request the annotated PSA copy

Once the PSA record is updated, request the child’s PSA birth certificate through:

A PSA Civil Registry System outlet;
PSA online channels listed on the PSA website;
An authorized requester, if allowed.

For walk-in applications, PSA states that an appointment is required and that applicants may use the PSA appointment system. PSA also lists the information needed for a birth certificate request, including the child’s complete name, parents’ names, date and place of birth, requester’s details, relationship to the child, number of copies, and purpose. (Philippine Statistics Authority)

Birth records are confidential. PSA states that a birth certificate may be requested by the person himself or herself, an authorized person, spouse, parent, direct descendant, guardian or institution legally in charge of a minor, the court or proper public official when necessary, or nearest kin in case of death. (Philippine Statistics Authority)

How to Get an Annotated PSA Birth Certificate Through Legitimation

Use this process when the parents were not married when the child was born but later validly married each other.

Step 1: Confirm that the child can be legitimated

A child may be legitimated if:

The child was conceived and born outside wedlock;
The biological parents later entered into a valid marriage;
At the time of conception, the parents were not legally disqualified from marrying each other, except when the only disqualification was that one or both were below 18 years old.

The most common disqualifying problem is a prior existing marriage. If either parent was still married to another person when the child was conceived, legitimation may not be available unless the legal impediment issue has been properly resolved under Philippine law. A later marriage between the parents does not automatically cure every earlier impediment.

Step 2: Prepare the legitimation documents

LCRO requirements vary, but the usual documents include:

Requirement	Purpose
PSA birth certificate of the child	Shows the original registered birth
Local civil registry birth certificate	Working record for annotation
PSA marriage certificate of the parents	Proves subsequent marriage
Local civil registry marriage certificate	Often required by the LCRO
CENOMAR or Advisory on Marriages of both parents	Helps show no prior legal impediment
Affidavit of Legitimation	States facts of birth, paternity, absence of legal impediment, and subsequent marriage
Valid IDs of both parents	Identity verification
Father’s acknowledgment, if not clearly shown	Establishes paternity
Supporting records, if required	School, baptismal, medical, SSS/GSIS, insurance, or other records

For example, local civil registrar citizen’s charter materials commonly require the child’s PSA and local birth records, parents’ PSA and local marriage records, CENOMARs, and an affidavit or supporting proof where acknowledgment is not yet clear. (Quezon City Government)

Step 3: Execute the Affidavit of Legitimation

The affidavit is usually signed by both parents and notarized. It typically states:

The child’s full name, date of birth, and place of birth;
The parents’ full names;
That the child was born before the parents’ marriage;
That the parents later validly married;
That there was no legal impediment to marry each other at the time of conception, except minority if applicable under RA 9858;
That the parents are requesting legitimation and annotation of the child’s birth record.

If one parent is deceased, missing, abroad, or unavailable, ask the LCRO what specific substitute documents are accepted. Requirements may become stricter because legitimation affects civil status and inheritance rights.

Step 4: File with the LCRO where the birth was registered

File the documents with the LCRO of the child’s place of birth. The LCRO reviews the documents, registers the legitimation, annotates the birth record, and transmits the annotated record to PSA.

The annotation usually states that the child was legitimated by the subsequent marriage of the parents, with reference to the marriage date and registration details.

Step 5: Request the PSA copy after transmittal

After PSA processing, order a new PSA birth certificate. Check whether the annotation appears. If the PSA copy still has no annotation, ask the LCRO for:

The transmittal date;
Endorsement details;
Whether PSA requested compliance or additional documents;
Whether the record was affected by a spelling, date, registry number, or encoding issue.

Required Documents Checklist

Use this as a practical starting checklist. The LCRO may require more depending on the facts.

Document	RA 9255 acknowledgment / AUSF	Legitimation
Child’s PSA birth certificate	Yes	Yes
Child’s local civil registry birth certificate	Yes	Yes
Valid IDs of mother and father	Yes	Yes
Affidavit of Admission of Paternity	If needed	If father’s acknowledgment is not yet clear
Private Handwritten Instrument	Alternative proof, if applicable	Possible supporting proof
AUSF	Yes, if using father’s surname	Sometimes not needed if legitimation process covers surname, but LCRO may require forms
PSA marriage certificate of parents	No, unless relevant	Yes
Local marriage certificate	No, unless relevant	Usually yes
CENOMAR / Advisory on Marriages	Usually no	Commonly required
Affidavit of Legitimation	No	Yes
Authorization letter / SPA	If filed by representative	If filed by representative
Consular notarization, apostille, or authentication	If documents executed abroad	If documents executed abroad

Fees and Timelines

Fees differ by city or municipality because LCRO charges may be based on local ordinances. Some offices charge only minimal filing, certification, or registration fees; others charge separate fees for certified copies, registration of legal instruments, or supplemental processing.

As a practical budget, prepare for:

LCRO filing or registration fees;
Notarial fees for affidavits;
PSA copy fees;
Courier fees if ordering online;
Apostille, authentication, or consular notarization fees if documents are executed abroad;
Transportation costs for follow-ups.

For timing, a smooth local RA 9255 or legitimation annotation may take a few weeks at the LCRO plus a few months before the PSA copy reflects the annotation. Overseas cases often take longer because documents pass through a Philippine Foreign Service Post before reaching the Philippine civil registry system.

Common Problems That Delay PSA Annotation

The father signed nothing

If the father never acknowledged the child, the LCRO cannot simply annotate the record to add his surname. You need a legally acceptable acknowledgment or, in disputed cases, a court action to establish paternity.

The father is abroad

The father may execute documents abroad, but the form of notarization or authentication matters. Many families avoid problems by executing the acknowledgment before the Philippine Embassy or Consulate. If using foreign notarized documents, confirm the LCRO’s authentication requirements before sending originals.

The child is already an adult

For an adult child, the parent generally cannot decide the surname issue alone. The adult child should personally execute the AUSF if he or she chooses to use the father’s surname.

The child was born before RA 9255

RA 9255 took effect in 2004, but PSA OCRG Administrative Order No. 1-2023 expanded the coverage of the RA 9255 rules to non-marital children during the effectivity of the Family Code, including unregistered births and registered births where the child uses the mother’s surname. The order also states that prevailing RA 9255 issuances have retroactive effect for births occurring within and outside the Philippines under the amended coverage rule. (Supreme Court E-Library)

This is important for people born after the Family Code took effect on August 3, 1988 but before RA 9255 took effect, because some cases that previously seemed to require court action may now be handled administratively if they fall within the amended rules.

The parents married, but one had a prior marriage

This is one of the most serious bottlenecks in legitimation. If either parent was legally married to someone else at the time of conception, the child may not qualify for legitimation by subsequent marriage. The LCRO may require CENOMARs, advisory records, annulment/nullity decisions, recognition of foreign divorce, or other proof before approving the annotation.

The PSA copy still shows the old record

This does not always mean the LCRO made a mistake. It may mean:

The annotated record has not yet been transmitted;
PSA has not encoded it;
PSA found a discrepancy;
The request was made too early;
The requester ordered the wrong certification type or used inconsistent details.

Follow up first with the LCRO, because they can confirm whether the annotated document was transmitted to PSA.

Special Notes for Foreigners and Filipinos Abroad

If the father is a foreigner, he can still acknowledge paternity for Philippine civil registry purposes. His passport and properly executed acknowledgment documents are usually required. The child’s citizenship is a separate question and depends on Philippine citizenship law and the parents’ citizenship at the time of birth.

If the child was born abroad to a Filipino parent, the birth should generally be reported through the Philippine Embassy or Consulate with jurisdiction over the place of birth. The Report of Birth and related acknowledgment or AUSF documents may later be transmitted to the PSA. Embassy requirements vary by country, so check the specific Philippine Embassy or Consulate website before preparing documents.

If a foreign birth certificate, foreign marriage certificate, or foreign court document is in a language other than English, expect to provide a certified English translation. If the foreign document will be used in the Philippines, ask whether it must be apostilled by the issuing country’s competent authority or otherwise authenticated.

Frequently Asked Questions

Can an illegitimate child use the father’s surname in the Philippines?

Yes, if the father has expressly recognized the child through the birth record, a public document, or a private handwritten instrument, and the proper AUSF process is followed. But the use of the father’s surname is optional, not automatic or compulsory.

Does RA 9255 make the child legitimate?

No. RA 9255 allows the child to use the father’s surname when legal requirements are met. It does not change the child’s status from illegitimate to legitimate. Legitimation requires a separate legal basis, usually the later valid marriage of the parents.

What is the difference between acknowledgment and legitimation?

Acknowledgment means the father legally recognizes the child. It may support the child’s right to use the father’s surname and claim support. Legitimation means the child, originally born out of wedlock, becomes legitimated because the parents later validly married and met the legal requirements.

Where do I file the annotation request?

For a child born in the Philippines, file with the Local Civil Registry Office where the birth was registered. For children born abroad or documents executed abroad, the Philippine Embassy or Consulate may be involved, especially for a Report of Birth, acknowledgment, or AUSF.

How long before the annotated PSA birth certificate is available?

A smooth local case often takes several weeks at the LCRO plus around a few months for PSA availability. Consular or overseas cases may take longer, sometimes several months to a year, depending on transmittal and PSA processing.

Can the mother force the child to use the father’s surname?

For very young children, the mother usually executes the AUSF if the child will use the father’s surname. But under Supreme Court doctrine, the use of the father’s surname is not a right the father or mother can impose against the child’s best interest. For adult children, the child personally decides.

What if the father refuses to sign an acknowledgment?

Without voluntary acknowledgment, the child or mother may need to rely on other legally admissible proof or file the proper court action to establish paternity. The LCRO cannot annotate paternity based only on verbal claims or family understanding.

Can we get the annotated PSA birth certificate online?

You can request a PSA copy online after the annotation has already reached and been processed by PSA. The annotation itself usually starts with the LCRO or Philippine Foreign Service Post, not by simply ordering online.

What if the child’s birth certificate has errors in spelling or dates?

If there are errors, ask the LCRO whether they can be corrected administratively through the appropriate civil registry correction process or whether a court order is required. Fixing major inconsistencies before filing RA 9255 or legitimation documents can prevent rejection or long delays.

Is a local civil registry annotated copy enough?

For some local transactions, it may help. But schools, passport offices, immigration agencies, and foreign authorities often require the PSA-issued annotated birth certificate. After LCRO annotation, follow through until the PSA copy reflects the annotation.

Key Takeaways

An annotated PSA birth certificate for a child born out of wedlock usually involves either RA 9255 acknowledgment/AUSF or legitimation by subsequent marriage.
RA 9255 allows use of the father’s surname but does not make the child legitimate.
Legitimation applies when the parents later validly marry and were not legally disqualified from marrying at the time of conception, except for minority covered by RA 9858.
The process normally begins at the LCRO where the birth was registered, not directly with PSA.
The PSA copy becomes annotated only after the LCRO or consulate registers, annotates, and transmits the updated record to PSA.
For adult children, the decision to use the father’s surname generally belongs to the child.
Inconsistent names, missing signatures, prior marriages, foreign documents, and premature PSA requests are the most common causes of delay.