Quick answer

An affidavit is a written statement of facts that the affiant confirms under oath or affirmation. In the Philippines, it normally requires a jurat: the affiant must appear before a duly authorized notary public or other officer authorized to administer oaths, prove identity, sign in that officer’s presence, and swear or affirm that the contents are true.

Notarization is not a stamp-only service. For ordinary paper notarization, sending a signed document or identification card through a representative is not enough. The document must be complete, the affiant must personally appear, and the notary must make the required notarial-register entry.

Not every private document must be notarized. The need depends on the law, the transaction, the receiving agency, a court rule, or the parties’ agreement. But a document presented as an affidavit must be properly sworn before an officer authorized to administer an oath.

What an affidavit should contain

Requirements vary according to purpose, but a reliable affidavit ordinarily includes:

A title identifying the affidavit’s purpose;
The affiant’s full legal name, age or statement of legal age, citizenship when relevant, civil status when relevant, and complete address;
A clear statement that the affiant is competent to testify about the matters stated;
Facts arranged in numbered paragraphs;
Statements based on the affiant’s personal knowledge, with the source identified if any information comes from records;
Accurate dates, places, names, amounts, and descriptions;
Identification of attached documents as annexes or exhibits;
The specific purpose for which the affidavit is executed;
The affiant’s signature over the printed name; and
A proper jurat completed and signed by the notary or other authorized officer.

Use the form required by the court, agency, bank, school, insurer, employer, embassy, or other recipient when one exists. Affidavits of loss, discrepancy, support, consent, adverse claim, self-adjudication, and judicial affidavits serve different legal purposes and are not interchangeable.

An affidavit should be written in a language the affiant understands. Do not sign a statement that you cannot read or whose contents have not been accurately translated or explained.

Jurat versus acknowledgment

The correct notarial act depends on the document.

Jurat

A jurat is generally appropriate for an affidavit or other sworn statement. The affiant:

Personally appears before the notary;
Presents the document;
Is personally known to the notary or identified through competent evidence of identity;
Signs the document in the notary’s presence; and
Takes an oath or affirmation concerning the document.

The jurat normally uses language such as “subscribed and sworn to before me.” The notary administers the oath; the notary does not certify that every factual assertion is independently proven.

Acknowledgment

An acknowledgment is commonly used for contracts, deeds, powers of attorney, and similar instruments. The signer personally appears, is properly identified, and declares that the existing signature was voluntarily affixed for the document’s stated purposes and that the document is the signer’s free and voluntary act. A person signing for a company or another principal must also declare authority to act in that capacity.

An acknowledgment does not turn a contract into an affidavit. Conversely, placing an acknowledgment on a document that must be sworn may not satisfy a requirement for a jurat.

Personal appearance is essential

Under the 2004 Rules on Notarial Practice, a paper notary may not notarize when the signatory is not personally present at the time of notarization or is not personally known or properly identified.

Accordingly, these practices are improper:

Leaving a signed affidavit with a notary’s secretary;
Asking a relative, fixer, or messenger to obtain the notarial seal;
Sending only a photograph or photocopy of the signed affidavit;
Signing the jurat-based affidavit before going to the notary;
Allowing someone else to sign for the affiant without a legally sufficient basis; or
Backdating the notarization.

For a jurat, wait to sign until the affiant is before the notary and the oath or affirmation can be administered. If a document has several affiants, each person whose statement is sworn must complete the required appearance and identification process.

Identification requirements

If the affiant is not personally known to the notary, the usual paper-notarization rule requires competent evidence of identity. Under the Supreme Court’s 2008 amendment to the Notarial Rules, this may be:

At least one current identification document issued by an official agency, bearing the individual’s photograph and signature; or
The oath or affirmation of two credible witnesses who are not privy to the document or transaction, personally know the affiant, and are themselves properly identified under the Rules.

The Rules list examples such as a passport, driver’s license, PRC ID, SSS card, GSIS e-card, PhilHealth card, senior-citizen card, government-office ID, and other qualifying government-issued documents. A listed card is not automatically sufficient if it is expired, lacks the required photograph or signature, is damaged, or does not reliably establish the bearer’s identity.

Bring the original identification document, not merely a screenshot or photocopy. The notary may request another ID or supporting record where names, signatures, photographs, or other details do not match. The office or agency receiving the affidavit may impose additional identification requirements.

What the notary must check

A notary should refuse or defer notarization when:

The document is blank or materially incomplete;
The document lacks an appropriate notarial certificate;
Required pages or attachments are missing;
The notary knows or has good reason to believe that the transaction is unlawful or immoral;
The signer appears not to understand the consequences;
The signer is not acting freely;
Identity cannot be established;
The certificate contains false information; or
The notary is disqualified by a prohibited interest or relationship.

A notary is disqualified if the notary is a party to the document, will receive a prohibited direct or indirect benefit from it, or has a disqualifying relationship to the principal under the Rules.

The notary must also record the act in the official notarial register. The entry ordinarily identifies the act, document, date and time, principal, address, and evidence of identity. The principal signs or places the required mark in the register.

Documents, annexes, and corrections

Before notarization:

Review every page and attachment.
Check that names match the IDs and supporting records.
Use exact dates and addresses where they matter.
Label annexes consistently—for example, “Annex A.”
Refer to each annex in the affidavit’s numbered paragraphs.
Bring originals when the affidavit authenticates or describes them.
Remove unused blank spaces where later insertions could be made.
Confirm the number of pages and copies required by the recipient.

Do not make material alterations after notarization. Adding facts, replacing pages, changing dates, or attaching a different annex can undermine the notarial act. If a substantive correction is necessary, prepare a corrected document and have it notarized properly again.

Minor handwritten corrections made before notarization should be clearly initialed by the affiant and handled according to the notary’s instructions. Never use correction fluid to conceal a material entry.

Signing by thumbmark or when physically unable to sign

The Notarial Rules provide special safeguards for a signature made by thumbmark or another mark. The mark must be placed in the presence of the notary and two disinterested, unaffected witnesses, who must also sign. The notary must write the required notation near the mark.

Separate safeguards apply when a person is physically unable to sign or make a mark and directs the notary to sign on that person’s behalf. Two disinterested, unaffected witnesses must be present, and the required notation and signatures must be placed on the document.

Because the formal wording and circumstances matter, inform the notary in advance if the affiant cannot sign conventionally. A disability, illness, illiteracy, or language barrier does not authorize another person simply to sign the affiant’s name without following the applicable rule.

Electronic and remote notarization

The Supreme Court’s Rules on Electronic Notarization, A.M. No. 24-10-14-SC, allow in-person electronic notarization, remote electronic notarization, and hybrid notarization through the regulated system.

Remote notarization does not mean that an ordinary video call, emailed scan, or pasted image of a seal is sufficient. The act must be performed by a properly commissioned electronic notary through an accredited electronic-notarization service provider, with the prescribed identity verification, electronic signatures, audiovisual procedures, electronic notarial certificate, and recordkeeping safeguards.

Confirm that the electronic notary and platform are authorized and that the intended recipient accepts the resulting electronic document. The Supreme Court maintains official electronic-notarization information and application resources and an electronic-notarization FAQ.

Traditional paper notarization remains available. The 2025 amendments to the 2004 Notarial Rules strengthened digital reporting and record safeguards for commissioned paper notaries; they did not convert an informal online meeting into valid remote notarization.

Is notarization always required?

No. The answer depends on the document.

A private agreement may be binding between its parties even without notarization when consent, object, and cause are present and no law requires a special form for validity. However, the Civil Code requires particular transactions to appear in a public document for specified purposes, and some transactions have stricter formal requirements. A lack of notarization may also create problems with registration, enforceability against third persons, or proof in court.

Notarization generally converts a qualifying private document into a public document for evidentiary purposes and gives it a presumption of regularity as to its execution. It does not:

Prove that every factual statement is true;
Cure fraud, forgery, incapacity, illegality, or lack of authority;
Supply missing consent;
Transfer ownership by itself;
Replace registration where registration is required; or
Guarantee acceptance by a court, registry, embassy, or government agency.

A defective notarization may cause the instrument to be treated merely as a private document, although the precise effect depends on the governing law and facts. The Supreme Court has repeatedly stressed that notarization is a substantive public function, not an empty formality, including in Inton v. Atty. Quintos.

Judicial affidavits have additional requirements

A judicial affidavit used as direct testimony is governed by the Judicial Affidavit Rule, A.M. No. 12-8-8-SC. It must include, among other matters:

The witness’s identifying and occupational information;
The name and address of the lawyer conducting or supervising the examination;
The place of examination;
Consecutively numbered questions and answers;
The witness’s basis of knowledge;
Identification and authentication of attached evidence;
A warning concerning criminal liability for false testimony or perjury;
The witness’s signature;
A jurat; and
The examining lawyer’s sworn attestation that the answers were faithfully recorded and the witness was not coached.

As a general rule, the judicial affidavits and exhibits must be filed and served not later than five days before the applicable pre-trial, preliminary conference, or scheduled hearing on a motion or incident. Different details apply in criminal cases. Late or noncompliant submissions may be excluded, subject only to the Rule’s limited relief.

Court deadlines, pre-trial orders, and special procedural rules should be checked immediately. An ordinary narrative affidavit is not automatically a compliant judicial affidavit.

Affidavits signed abroad

A person outside the Philippines should follow the authentication method required by the Philippine recipient and the law of the country where the document is executed. Depending on the destination country and document, this may involve:

A Philippine embassy or consulate;
A foreign notary followed by an apostille under the Apostille Convention; or
Consular authentication where the Apostille Convention does not apply.

An apostille authenticates the origin of the public document or notarial certificate; it does not certify the truth of the affidavit’s contents or guarantee that a Philippine agency will accept the document for the intended transaction.

Check the receiving office’s exact requirements before signing. The Department of Foreign Affairs Apostille information should be consulted for current procedures and covered documents.

Practical checklist

Before drafting

Ask the receiving office for its current prescribed form and checklist.
Confirm whether an affidavit, acknowledgment, certification, or another document is actually required.
Identify the filing or submission deadline.
Collect reliable records supporting every material statement.
Determine whether all necessary affiants can personally appear.

Before appearing before the notary

Bring the complete unsigned affidavit if it requires a jurat.
Bring the original current government-issued ID with photograph and signature.
Bring supporting originals and all annexes.
Check spelling, dates, addresses, and page order.
Confirm that no blanks remain.
Prepare the required number of copies.
Bring proof of authority if signing in a representative capacity.

During notarization

Appear personally and answer the notary’s identity and capacity questions truthfully.
Read the final document before signing.
Sign only as instructed.
Take the oath or affirmation.
Sign the notarial register.
Check that the notarial certificate contains the correct date and venue.

After notarization

Obtain and preserve a complete copy, including annexes and the notarial certificate.
Keep the official receipt where issued.
Record when, where, and to whom the affidavit was submitted.
Preserve proof of filing, delivery, or electronic transmission.
Do not alter the notarized document.

Under the amended reporting rules, the notary must provide each signatory, at no additional cost, an electronic copy in the prescribed format through email or another mutually agreed electronic file-sharing method within the period specified by the Rules.

Evidence to preserve if notarization is disputed

Keep:

The exact notarized original or complete copy;
All pages and annexes;
Identification documents used at the time;
The notary’s name, office address, commission details, and receipt;
Appointment messages, emails, and transmission records;
Proof of personal appearance;
Filing or delivery receipts;
Earlier drafts showing what was—and was not—changed;
Records establishing the affiant’s location on the notarization date; and
Communications showing coercion, forgery, substitution of pages, or unauthorized use, if alleged.

Do not write on, staple new material to, detach pages from, or surrender the only original without obtaining a documented receipt and a complete copy.

Common mistakes

Treating notarization as proof that the affidavit’s allegations are true;
Signing a jurat-based affidavit before meeting the notary;
Using an expired, altered, or nonqualifying ID;
Sending a representative instead of appearing personally;
Leaving blanks for later completion;
Using the wrong notarial certificate;
Omitting material annexes;
Copying a generic internet form that does not meet the recipient’s rules;
Giving conclusions or hearsay instead of specific facts within personal knowledge;
Signing a document in a language the affiant does not understand;
Backdating or changing pages after notarization;
Assuming any lawyer is automatically authorized to notarize anywhere;
Treating an ordinary video call as valid remote notarization; or
Missing a court or agency deadline while correcting the affidavit.

False statements and other serious consequences

An affiant should state only facts honestly believed to be true and should disclose relevant qualifications instead of making absolute claims unsupported by personal knowledge.

Under Republic Act No. 11594, which amended Article 183 of the Revised Penal Code, knowingly making an untruthful statement under oath about a material matter in an affidavit required by law may constitute perjury. The statute increased the criminal penalty and provides additional consequences when the offender is a public officer or employee.

Other offenses or liabilities may arise from forgery, falsification, fraud, use of a false document, obstruction, contempt, or misrepresentation to a court or government agency. Whether an offense was committed depends on the document, the material statement, intent, authority of the administering officer, and use of the affidavit.

When legal help is urgent

Consult a Philippine lawyer promptly if:

The affidavit concerns land, inheritance, corporate authority, immigration, criminal accusations, family status, or a large financial transaction;
A court, prosecutor, police officer, or government investigator has requested a sworn statement;
You may incriminate yourself or expose another person to criminal liability;
You are being pressured to sign facts you dispute or do not personally know;
Someone notarized a document without your appearance;
Your signature, ID, or identity was used without permission;
Pages or annexes were replaced after you signed;
The notary’s commission, territorial authority, or register entry is in doubt;
A filing deadline, hearing, limitation period, or registration deadline is near;
A foreign authority will receive the document; or
A receiving office has rejected the notarization.

Possible irregular notarization by a lawyer-notary may be reported through the appropriate court or disciplinary process. Suspected forgery, identity theft, or falsification may also require prompt reporting to law enforcement and immediate protective measures affecting the underlying property or transaction.

Frequently asked questions

Can I notarize an affidavit without appearing personally?

Not through ordinary paper notarization. Personal appearance is required. A valid remote electronic notarization must follow the Supreme Court’s separate electronic-notarization system and cannot be replaced by an informal video call or emailed scan.

Can I sign the affidavit at home before going to the notary?

For a jurat, the Rules contemplate signing in the notary’s presence. Bring the affidavit unsigned and follow the notary’s instructions.

Is one government ID enough?

One current official identification document bearing the holder’s photograph and signature may satisfy the general rule. The notary may require further proof if the document is expired, inconsistent, damaged, or otherwise unreliable, and the receiving institution may have additional requirements.

Does a barangay official have authority to notarize?

A barangay official is not, merely by holding barangay office, a notary public. Some public officers may administer oaths when a statute specifically authorizes them and the oath falls within that authority. For general private affidavits, use a duly commissioned notary unless the receiving agency confirms that another officer may administer the required oath.

Does notarization make an affidavit automatically admissible in court?

No. Notarization addresses execution and the oath, not every rule on relevance, hearsay, authentication, best evidence, competency, or procedure. A judicial affidavit must also comply with the Judicial Affidavit Rule.

Can a notary correct the date after I leave?

The certificate and register must truthfully reflect the actual notarial act. A notary should not backdate, postdate, or make a false certificate. A material error should be addressed through a proper corrected document or procedure.

How long is a notarized affidavit valid?

There is no universal expiration period for all affidavits. The receiving agency may require a recently executed affidavit, while changed facts may make an older affidavit inaccurate. The governing statute, form, transaction, or agency rule controls.

Can one affidavit be reused for another purpose?

Only if its facts, wording, oath, annexes, and notarial form satisfy the new requirement and remain accurate. Many agencies require a purpose-specific or recently executed affidavit.

Can a notary refuse to notarize?

Yes. A notary must refuse in circumstances specified by the Rules, including incomplete documents, doubtful identity, apparent illegality, lack of understanding, or lack of free will.

Official legal sources

This article provides general legal information, not legal advice or a substitute for reviewing the actual document and applicable agency or court rules. Requirements may vary by affidavit, transaction, location, and receiving office. Sources and procedures were checked as of August 27, 2026.