How to Legally Change Your Surname to Your Mother’s in the Philippines

Published on November 10, 2025

Judge’s gavel and PSA birth certificate symbolizing legal surname change in the Philippines

Changing your surname is a deeply personal decision. For some, it is about aligning legal records with the name they have always used. For others, it is a matter of identity, wanting their documents to reflect their maternal family name.

If you are an adult in the Philippines thinking about using your mother’s surname instead of your father’s, it is important to know that this is possible, but it follows specific rules. The process depends largely on what is written on your PSA birth certificate and your legal status when you were born (whether your parents were married or not).

Whether you are preparing documents for school, work, or a PSA online request, understanding what appears on your birth record is crucial. Your PSA-issued certificate is the primary proof of identity, and any updates to your name must go through legal or administrative procedures.

This article explains the practical options available under Philippine law, what the courts or civil registrars typically require, and what changes and does not change after your surname is legally updated. If you later need a copy of your updated record, you can easily request it through PSAHelpline.ph and have it sent straight to your home through secure PSA delivery options.

Table of Contents:

Understanding the Basics

In the Philippines, your surname on official records is not just a personal choice, it is part of your civil status. The rules around surnames depend on your filiation, or your legal relationship with your parents.

In simple terms:

  • If your parents were not married when you were born, you are considered illegitimate under the law.
  • If your parents were married when you were born, you are legitimate.

Your status determines which surname appears on your PSA birth certificate and what process applies if you wish to change it later. For those who have recently requested their documents via PSA online channels like PSAHelpline.ph, reviewing your certificate details is the first step before filing any petition.

Common Scenarios for Using Your Mother’s Surname

There are several situations where someone might want to change their surname to their mother’s:

1. Your PSA Birth Certificate Already Shows Your Mother’s Surname

If your PSA birth certificate already lists your mother’s surname, you do not need to file for a name change. You can simply use it consistently across all your documents and IDs. If some of your school or employment records show a different surname, it is best to update those records to match your PSA birth certificate, not the other way around. You can easily request a new copy through PSAHelpline.ph for convenient PSA delivery wherever you are in the Philippines.

2. You are an Illegitimate Child Who Was Acknowledged by Your Father

If you were born out of wedlock but your father acknowledged you and his surname appears on your PSA birth certificate, you have the option, as an adult, to use your mother’s surname instead.

However, this usually requires a petition filed in court under Rule 103 of the Rules of Court, since changing a surname is generally not allowed through administrative correction. Before filing, it helps to check your document details through a verified copy ordered via PSA online services.

3. You are a Legitimate Child Wanting to Use Your Mother’s Surname

If your parents were married when you were born and you wish to carry your mother’s surname instead of your father’s, this can also be done through a court petition. However, this process tends to be more complex. Courts carefully review such petitions since a legitimate child’s use of the father’s surname carries legal presumptions under family law.

What the Law Says in Simple Terms

Infographic showing key Philippine laws and rules on changing surnames

A few key laws and rules that define how surname changes work in the Philippines:

1. The Family Code and R.A. 9255:

  • Illegitimate children typically bear their mother’s surname.
  • If the father acknowledges the child, the child may use the father’s surname.
  • The key word is may. It is optional, not mandatory.

2. R.A. 9048 (as amended by R.A. 10172)

  • This allows administrative corrections for typographical or clerical errors, and changes to first names, birth dates, or sex entries (if clearly clerical).
  • But it does not allow you to change your surname by choice.

3. Rules of Court Rule 103 (Change of Name):

  • If the change you want involves switching from one surname to another (and it is not just a spelling mistake), you will need to file a petition for change of name in the Regional Trial Court (RTC) where you live.
  • The process includes publication in a newspaper and a court hearing.

If your PSA birth certificate currently bears your father’s surname and you now wish to use your mother’s, expect to file a court petition unless the Local Civil Registrar (LCR) confirms that your case qualifies as a clerical error (which is rare for surnames). Afterward, you can conveniently request your updated record through PSAHelpline.ph, ensuring smooth and reliable birth certificate delivery nationwide.

When the Civil Registrar Can Handle It

There are limited situations where the change can be made administratively, meaning no court petition is needed.

This applies only when:

  • There is a clear typographical error in the spelling of the surname.
  • The wrong surname was entered by mistake, and the correction is purely factual and minor.

In these cases, you can visit the LCR where your birth was registered or where you currently live, bring your PSA birth certificate and ask whether your request can be handled under R.A. 9048.

It is always best to get their official checklist, as practices and interpretations can vary between cities and municipalities.

When You Will Need to Go Through the Court

If your case does not qualify as a clerical correction, the next step is filing a petition for change of name under Rule 103.

This process involves:

  • Filing your petition in the Regional Trial Court where you currently reside.
  • Publishing a court order in a newspaper for three consecutive weeks.
  • Attending a court hearing where you will explain your reasons for the change.

Courts typically approve surname changes when there is proper and reasonable cause.

These may include:

  • You are an adult who wishes to use your mother’s surname as a personal and legal choice.
  • You have long been known in school or at work by your mother’s surname and want your records to match.
  • You face confusion or hardship because of surname inconsistencies.
  • You wish to align your legal identity with your maternal family name.

Once the court grants your petition, its decision will be annotated on your PSA birth certificate. The annotation will not erase the old entry, it simply shows that a legal change has been authorized.

What Happens After the Surname Change

After receiving a favorable court decision:

  • Secure a Certificate of Finality from the court.
  • Register the court decision with your Local Civil Registrar (LCR) and the Philippine Statistics Authority (PSA).
  • Request a new copy of your PSA birth certificate with the annotation showing your new surname.

You can conveniently request your updated record through PSAHelpline.ph for door-to-door PSA delivery anywhere in the Philippines.

With your annotated PSA copy, you can now start updating your records across different agencies such as the DFA (for passports), SSS, PhilHealth, Pag-IBIG, LTO, COMELECT, and your banks or schools.

Important Reminders

  • A surname change does not affect filiation. Switching to your mother’s surname does not cancel your father’s acknowledgment or alter your legitimacy status.
  • Support and inheritance rights remain the same. Your surname only affects how your name appears on records, not your legal rights as a child.
  • Be consistent. After your surname changes, use your new name across all documents to avoid confusion.
  • Keep multiple certified copies. Agencies may ask for your court decision, certificate of finality, and your annotated PSA birth certificate.
  • Expect some costs. Filing fees, publication costs, and legal assistance (if you hire counsel) can vary.

Frequently Asked Questions

Scrabble tiles spelling questions with PSA birth certificate image below 1. Can I decide this on my own if I am already 18?

Yes. Once you are of legal age, you can file the petition yourself. Your reasons and supporting documents will be reviewed by the court.

2. Do I need my father’s consent?

No. The court will notify him if required, but his consent is not a condition for approval.

3. How long does it take?

The timeline depends on the court’s schedule, publication, and processing at the PSA. It can take several months from filing to annotation.

4. Will the surname change delete my father’s acknowledgment?

No. The acknowledgment remains. The change only affects how your name appears in official records.

Conclusion

If your PSA birth certificate already bears your mother’s surname, no legal action is needed. Just make sure your other records match it.

But if your PSA shows your father’s surname and you wish to use your mother’s instead, expect to file a petition for change of name in court under Rule 103. Once approved, the change will be annotated on your PSA record, allowing you to update your IDs and personal documents accordingly.

Your surname is part of your identity and with the proper process, you can ensure that your legal records reflect the name that truly represents who you are.

About PSAHelpline.ph

PSAHelpline.ph makes it easy and convenient to request your PSA certificates online. Through our blogs, we provide clear, practical, and up-to-date information helping you navigate PSA online appointments, avoid common errors, and complete your requests smoothly.

As an authorized partner of the Philippine Statistics Authority for over 25 years, we have helped millions of Filipinos securely obtain their PSA birth certificates, marriage certificates, and other civil registry documents.

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If you would like to know more about correcting first names on a PSA birth certificate, read this previous blog: How to Correct Your First Name in Your PSA Birth Certificate

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