Quick answer

A former Filipino citizen may retain or reacquire Philippine citizenship under Republic Act No. 9225 if the person:

was a natural-born Philippine citizen;
became a citizen of another country through naturalization, including qualifying derivative naturalization; and
completes the prescribed petition and takes the Oath of Allegiance to the Republic of the Philippines.

Apply through the Bureau of Immigration (BI) if you are in the Philippines or through the nearest Philippine embassy or consulate with jurisdiction over your residence if you are abroad. Citizenship is retained or reacquired upon taking the required oath after approval and compliance with the applicable rules.

RA 9225 does not cover every person with Filipino ancestry or every dual citizen. In particular, a person who was already a citizen of both the Philippines and another country from birth generally does not need to reacquire Philippine citizenship under this law.

What RA 9225 does

The Citizenship Retention and Re-acquisition Act of 2003, or Republic Act No. 9225, provides two closely related results:

A natural-born Filipino who lost Philippine citizenship through foreign naturalization before the law took effect is deemed to have reacquired Philippine citizenship upon taking the prescribed oath.
A natural-born Filipino who became a naturalized foreign citizen after the law took effect may retain Philippine citizenship by taking the same oath.

In practical terms, both routes produce Philippine citizenship under RA 9225. The law took effect on September 17, 2003, but it permits qualified former natural-born Filipinos who were naturalized abroad before that date to reacquire citizenship.

This is commonly called “dual citizenship,” although the legal proceeding is formally an application for retention or reacquisition of Philippine citizenship.

Who qualifies

You generally qualify if all of the following are true:

You were a natural-born Filipino.

A natural-born citizen is a Filipino from birth without having to perform an act to acquire or perfect Philippine citizenship, subject to the Constitution in force at the time of birth. Citizenship questions involving an older birth, an unregistered birth abroad, election of Philippine citizenship, adoption, or disputed parentage may require a document-specific assessment.

You later became a foreign citizen through naturalization.

The Supreme Court has clarified that RA 9225 is directed at natural-born Filipinos who became foreign citizens through naturalization—not people whose second citizenship arose automatically from birth. See Gana-Carait v. COMELEC, G.R. No. 257453, August 9, 2022.

The BI has also directed that foreign citizenship acquired through qualifying derivative naturalization may be processed under RA 9225. This may apply, for example, where a minor automatically obtained citizenship through a parent’s naturalization, depending on the foreign law and the documents establishing the acquisition. See BI Operations Order No. SBM-2014-051.

You take the statutory oath.

Under the implementing rules, the oath is the final act required to retain or reacquire Philippine citizenship, subject to approval and full documentary compliance.

Who may need a different procedure

Do not assume RA 9225 is the correct route merely because you hold a foreign passport.

Dual citizen from birth

If you acquired Philippine and foreign citizenship at birth—for example, through a Filipino parent and the law of your country of birth—you may already be a Philippine citizen. The appropriate process may instead be:

registration of a Report of Birth;
recognition as a Filipino citizen by the BI; or
proof or confirmation of existing Philippine citizenship.

The Supreme Court has held that RA 9225 does not govern dual citizenship acquired by birth. The BI separately provides a Recognition as Filipino Citizen procedure.

Not natural-born as a Filipino

RA 9225 is limited to former natural-born Philippine citizens. A former naturalized Filipino, or a person who merely has Filipino ancestry but was never a Philippine citizen, cannot rely on RA 9225 without another legal basis.

Philippine citizenship was lost for another reason

If citizenship was lost through an express renunciation or through circumstances other than foreign naturalization, eligibility under RA 9225 may not be straightforward. Obtain individualized advice before filing.

Citizenship status is unclear

Unusual cases may involve:

births before the 1973 or 1987 Constitution;
a Filipino mother and foreign father under older constitutional rules;
delayed or reconstructed civil-registry records;
adoption;
conflicting birth records;
a parent’s naturalization while the applicant was a minor;
an alleged renunciation of Philippine citizenship; or
uncertainty over whether foreign citizenship was acquired by birth, naturalization, or operation of law.

These distinctions can change the correct application entirely.

Where to apply

If you are in the Philippines

The governing rules direct an applicant in the Philippines to file with the Bureau of Immigration. The BI’s current service page identifies the BI Main Office as the filing office and provides links to its checklist and forms.

The BI also lists the petition among the transactions available through its e-Services portal. Online submission does not necessarily eliminate identity verification, presentation of originals, payment, or personal appearance for the oath. Follow the instructions issued for your transaction.

If you are abroad

File with the Philippine embassy or consulate that has jurisdiction over the place where you live. Procedures differ by foreign post. Depending on the post, applicants may be required to:

book an appointment;
email or upload documents for preliminary review;
submit originals and photocopies;
pay in local currency or through a designated portal; and
appear personally for signing, identity verification, and the oath.

Use the official website of the particular embassy or consulate. Requirements published by one post should not be assumed to apply at another.

Documents to prepare

The exact checklist depends on where you file and on your personal history. As a practical starting point, prepare the following:

For the principal applicant

Completed petition or application form, unsigned if the filing office requires signing before an authorized officer
Recent photographs meeting the office’s size, background, and recency specifications
PSA-issued Philippine birth certificate, if available
Old Philippine passport or other proof of former Philippine citizenship
Current foreign passport
Foreign naturalization certificate
Proof of the date and legal basis on which foreign citizenship was acquired
Marriage certificate or other civil-status record when relevant
Documents connecting any change of name to the name in the Philippine birth record
Current proof of address or consular jurisdiction, if required
Original ACR, ACR I-Card, ICR, or CRTV if you are registered with the BI as an alien
Copies and originals in the number required by the filing office

Under the 2008 Revised Rules Governing Philippine Citizenship under RA 9225, proof of former natural-born Philippine citizenship may include a Philippine birth certificate, old Philippine passport, voter record, marriage record identifying the applicant as Filipino, or another document acceptable to the evaluating officer. The officer may require additional evidence where citizenship is reasonably in doubt.

If the naturalization certificate is unavailable, the rules allow an affidavit explaining how foreign citizenship was acquired. An affidavit is not a guarantee of approval; the evaluating officer may still require supporting records from the foreign government.

If names do not match

Do not ignore spelling differences, married names, reversed names, omitted middle names, or different dates of birth.

The BI rules require an explanatory affidavit when the name in the Philippine record differs from the name in the foreign passport or other documents. At least two public or private documents showing the correct name may also be required. Depending on the discrepancy, the civil-registry record may need correction before the application can be completed.

Foreign-issued documents

Confirm the current authentication, apostille, translation, and photocopy rules with the receiving BI office or foreign post. Requirements vary according to the issuing country, the document, applicable treaties, and the place of filing. A document not written in English or Filipino may require an acceptable translation.

Including children

An applicant may include an unmarried child below 18 years of age, whether legitimate, illegitimate, or adopted, as a derivative beneficiary. The child must be identified in the petition, supported by the required records, and covered by the applicable dependent fee.

Ordinarily, prepare:

the child’s birth certificate;
the child’s foreign passport;
proof of the parent-child relationship;
the dependent supplement or application form; and
an adoption decree, if applicable.

For a foreign adoption, the BI rules call for the adoption decree to be properly authenticated through the relevant Philippine consular process. For a Philippine adoption, a certified true copy of the decree is required. Confirm present apostille or authentication practice with the receiving office.

The child must be below 18 when the parent reacquires citizenship and must be included as a beneficiary. An adult child cannot be added derivatively. However, a child who was born while either parent was still Filipino may already have been a natural-born Filipino and may be able to apply independently or seek recognition, depending on the facts.

The BI also maintains a separate Inclusion of Dependents under RA 9225 process for qualifying dependents not included in the original petition.

Step-by-step application process

1. Confirm the correct legal route

Determine whether you lost Philippine citizenship through foreign naturalization. If you were a dual citizen from birth, seek recognition or registration guidance instead of automatically filing under RA 9225.

2. Obtain the current official checklist

Download the checklist and form from the Bureau of Immigration or from the official website of the embassy or consulate where you will file.

Check the page again shortly before filing because appointment systems, payment methods, photograph specifications, and local documentary requirements can change.

3. Reconcile your records

Compare the exact entries on your:

Philippine birth certificate;
old Philippine passport;
foreign passport;
naturalization certificate;
marriage certificate; and
children’s records.

Prepare the necessary affidavit and supporting documents for discrepancies. Resolve material civil-registry errors when required.

4. Complete the application carefully

Use the name and facts supported by your records. Disclose aliases and name changes. State accurately how and when foreign citizenship was acquired.

Do not sign in advance if the form or filing office requires the signature to be witnessed by a BI or consular officer.

5. Submit for evaluation

At the BI, the published process includes pre-screening through the Central Receiving Unit. Applicants using e-Services should follow the portal instructions and any notice requiring originals or personal appearance.

Abroad, follow the foreign post’s appointment or preliminary-review procedure. An officer may request additional evidence before accepting or approving the petition.

6. Pay only through the official channel

Obtain an official order of payment, e-receipt, or consular receipt. Do not pay a fixer or an unofficial account.

The BI service page presently displays a total of ₱3,010 for a principal application and ₱1,760 for a dependent, but expressly warns that those figures were last updated on March 6, 2014 and may change without notice. The governing rules state base processing fees of ₱2,500 for the principal and ₱1,250 for each beneficiary, with other authorized charges potentially reflected in the current assessment.

For overseas filings, the rules prescribe a base fee of US$50 or an accepted local-currency equivalent for the principal and US$25 or equivalent for each beneficiary. The actual amount, exchange rate, payment method, and possible related service charges must be confirmed with the foreign post.

7. Take the Oath of Allegiance

The oath must be administered by the proper official:

in the Philippines, ordinarily by the Commissioner of Immigration or an authorized BI official; or
abroad, by the Consul General or a duly commissioned foreign-service officer of the relevant Philippine post.

The governing rules treat the oath as the final act of retention or reacquisition after full compliance. Do not rely on a privately notarized oath unless the BI has expressly accepted it under the rules and any required written justification has been submitted.

8. Obtain and check your citizenship documents

After approval, secure the official documents issued in your case, which may include:

the Order of Approval;
the Oath of Allegiance; and
the Certificate or Identification Certificate of Retention/Re-acquisition of Philippine Citizenship.

Check every entry immediately. Clerical errors in a BI-issued certificate may be corrected through a written request subject to the Commissioner’s approval.

9. Complete follow-up transactions separately

Reacquiring citizenship does not automatically produce a Philippine passport, update every government database, register an overseas birth or marriage, or issue identification documents.

Depending on your needs, your next transactions may include:

applying for a Philippine passport with the DFA;
registering a Report of Birth, Marriage, or Death;
updating voter registration;
cancelling an alien-registration record;
updating property, banking, tax, pension, or professional records; and
obtaining certified copies of RA 9225 documents.

Deadlines and processing time

There is no general statutory deadline requiring an otherwise qualified former Filipino to apply within a fixed number of years after foreign naturalization.

However, if the BI or foreign post notifies you that the petition is deficient, the revised rules provide 30 days from receipt of the notice to submit the required documents. Otherwise, the petition will not be favorably acted upon.

Processing time is office- and case-specific. It may depend on appointment availability, verification of civil-registry or immigration records, name discrepancies, foreign-document authentication, and requests for additional evidence. Do not make irreversible travel, employment, candidacy, or property arrangements based only on an expected approval date.

What changes after approval

A person who validly retains or reacquires citizenship under RA 9225 generally enjoys the civil and political rights of a Philippine citizen and assumes the corresponding duties and liabilities, subject to the Constitution and other laws.

Possible practical consequences include the ability, subject to separate legal requirements, to:

apply for a Philippine passport;
reside in the Philippines as a citizen;
own land within constitutional and statutory limits applicable to Filipino citizens;
engage in business or employment under rules applicable to citizens;
vote after satisfying registration and election-law requirements; and
seek professional licensing where the profession’s governing law permits it.

Citizenship alone does not waive licensing, registration, residency, tax, land-title, corporate-ownership, or election requirements. It also should not be assumed to retroactively validate a transaction completed while the person was not a Philippine citizen.

Important exceptions for voting and public office

RA 9225 does not make every political right automatic.

A dual citizen who wants to vote must meet constitutional and statutory registration requirements.

A person seeking elective public office must satisfy all qualifications for that office and, at the time required by law, execute a personal and sworn renunciation of all foreign citizenship in addition to the RA 9225 oath. The Supreme Court has treated these as distinct requirements for naturalized dual citizens seeking elective office. See Maquiling v. COMELEC, G.R. No. 195649, April 16, 2013.

A person appointed to public office must take the required oath to the Philippines and renounce the foreign oath of allegiance before assuming office.

Voting or holding Philippine public office is also restricted where the person is a candidate for or occupies public office in the foreign country, or is in active service as a commissioned or non-commissioned officer in that country’s armed forces.

Anyone considering candidacy or government appointment should obtain advice well before the filing or assumption deadline. Continued use of a foreign passport and other conduct after a sworn renunciation may have serious election-law consequences.

Does reacquisition cancel foreign citizenship?

Philippine approval under RA 9225 does not itself determine whether another country continues to recognize you as its citizen. That question is governed by the other country’s law.

Before applying, verify the consequences with the foreign country’s official citizenship authority or obtain advice from a lawyer qualified there—especially if that country restricts dual nationality, treats a foreign oath as renunciation, or requires notification or permission.

Philippine passports and travel

A Philippine passport is separate from the RA 9225 proceeding. After receiving your approval documents, you may apply for a passport through the DFA or a Philippine foreign post.

Keep your foreign passport and Philippine citizenship documents consistent and accessible when travelling. Entry and exit requirements may depend on which passport is presented and whether you can prove Philippine citizenship. Check current BI, DFA, airline, and destination-country rules before travel rather than relying on older advisories.

Taxes, property, and professional practice

Dual citizenship does not by itself answer every tax question. Philippine tax liability may depend on residence, income source, the nature of the transaction, applicable tax treaties, and other facts. Obtain advice from the Bureau of Internal Revenue or a qualified tax professional for substantial income, inheritance, estate, or business matters.

Likewise, reacquisition may affect eligibility to own Philippine land, but it does not cure title defects or remove limits arising from co-ownership, succession, agrarian law, condominium law, corporate structures, or other restrictions. Have the title and transaction reviewed before paying or signing.

A regulated professional must still secure the license or permit required by the appropriate Philippine professional authority. Citizenship is not a substitute for Professional Regulation Commission registration or another sector-specific authorization.

Evidence to preserve

Keep the originals and secure digital copies of:

the filed petition and dependent supplements;
proof of payment and official receipts;
the naturalization certificate;
current and expired Philippine and foreign passports;
PSA and foreign civil-registry records;
discrepancy or loss affidavits;
the Order of Approval;
the signed Oath of Allegiance;
the citizenship or identification certificate;
appointment and submission confirmations; and
correspondence requesting additional documents.

Store copies in more than one secure location. These records may later be needed for passport applications, immigration clearance, voting, inheritance, property transactions, children’s citizenship claims, or replacement of a lost certificate.

Common mistakes to avoid

Applying under RA 9225 when the applicant has been a dual citizen from birth
Assuming Filipino ancestry alone proves former natural-born citizenship
Failing to prove how and when foreign citizenship was acquired
Using inconsistent names without an affidavit and supporting records
Signing a form before the required witnessing appointment
Bringing photocopies without the originals when originals must be presented
Relying on another consulate’s checklist or payment procedure
Using outdated fee schedules without confirming the current assessment
Omitting an eligible minor child and assuming inclusion will be automatic
Trying to include a child who was already 18 when the parent reacquired citizenship
Failing to surrender or request cancellation of an existing ACR or related alien-registration document
Treating an appointment, payment, or document submission as proof that citizenship has already been reacquired
Losing the Order, oath, or citizenship certificate
Assuming approval automatically issues a passport or registers civil-status events
Assuming the Philippine proceeding cannot affect citizenship under the foreign country’s law

Fraud, material misrepresentation, or concealment may support administrative proceedings to revoke an approval under the BI rules. All facts and documents should therefore be complete and accurate.

When legal help is urgent

Seek individualized assistance promptly if:

the applicant’s Philippine citizenship at birth is disputed;
no reliable Philippine birth record exists;
the applicant was born under an older constitutional regime and citizenship through the mother is at issue;
foreign citizenship arose through a parent while the applicant was a minor;
records contain different identities, birth dates, or parentage;
the applicant previously executed a formal renunciation;
a petition has been denied or challenged;
fraud or false-document allegations have been raised;
the 30-day period to cure a deficiency is running;
property, inheritance, adoption, or a child’s status depends on the outcome;
a departure, immigration status, or alien-registration problem is imminent; or
the applicant plans to run for office or accept a government appointment.

For a straightforward case, the BI or responsible Philippine foreign post should be the first source for current procedural instructions. Complex status questions may require a Philippine immigration or citizenship lawyer.

Frequently asked questions

Do I have to give up my current foreign citizenship?

Philippine law does not require an ordinary RA 9225 applicant to execute a general renunciation of foreign citizenship merely to reacquire Philippine citizenship. However, the foreign country’s own law may produce a different result. A separate sworn renunciation is also required for certain Philippine elective-office candidates.

Can I apply entirely online?

The BI lists this petition in its e-Services portal, but the process still involves document evaluation, payment, and the Oath of Allegiance. Follow the transaction notice for any required personal appearance and presentation of originals. Foreign-post procedures vary and may not be fully online.

Must I travel to the Philippines to apply?

No. A qualified applicant abroad may file with the Philippine embassy or consulate having jurisdiction over the applicant’s residence.

Is a Philippine passport required to apply?

An old Philippine passport is useful evidence but is not the only permitted proof of former Philippine citizenship. A PSA birth certificate and other acceptable records may establish eligibility. A current foreign passport is ordinarily required for identity and foreign-citizenship evidence.

What if my naturalization certificate is lost?

The BI rules allow an affidavit explaining how foreign citizenship was acquired when the certificate is unavailable. The filing office may still require replacement records, verification, or other supporting evidence.

Can my spouse become Filipino through my application?

No. RA 9225 provides derivative citizenship for a qualifying unmarried child below 18, not for a spouse. A spouse needs an independent legal basis for Philippine citizenship or immigration status.

Can I include my adult child?

Not derivatively. An adult child may have an independent claim if born while a parent was still Filipino, but the correct procedure depends on the child’s birth circumstances and citizenship history.

Does the oath alone make me a citizen?

The oath is the decisive final act under RA 9225, but it must be taken through the authorized process after the petition has satisfied the applicable requirements. A self-prepared or privately administered oath should not be treated as sufficient without BI acceptance.

Can I own Philippine land immediately after reacquisition?

Reacquired citizenship may restore eligibility to own land as a Filipino, but ownership still depends on constitutional limits, the title, the transaction, and other applicable laws. Obtain transaction-specific advice before purchasing or transferring property.

Is there a deadline to apply after becoming a foreign citizen?

RA 9225 does not impose a general application deadline. A separate 30-day deadline applies when the BI or foreign post formally requires an applicant to cure documentary deficiencies under the revised rules.

Official sources

This article provides general legal information, not legal advice or a guarantee of approval. Citizenship outcomes depend on the applicable Constitution, foreign law, and the applicant’s records and history. Procedures and fees should be reconfirmed with the responsible BI office or Philippine foreign post. Sources and procedures last checked on September 5, 2026.