What Crimes Involve Falsehood or Lies in Philippine Law?

Introduction

False statements may result in criminal liability in the Philippines when they are made under oath, submitted as evidence, placed in a public document, used to obtain property, or made in violation of a special law. The applicable offense depends not only on whether the statement was untrue, but also on where, how, and why the falsehood was made.

The principal offenses include perjury, false testimony, offering false testimony, falsification of public or private documents, estafa by deceit, and other forms of deceit. Each offense has distinct elements, and a conviction requires proof beyond reasonable doubt of every element of the crime charged.

Perjury Under Philippine Law

Perjury is generally committed when a person knowingly makes an untruthful statement under oath or executes an affidavit concerning a material matter before a competent officer authorized to administer oaths, in a case where the law requires the oath or affidavit.

The governing provision is Article 183 of the Revised Penal Code. Its penalty is arresto mayor in its maximum period to prision correccional in its minimum period. The same provision applies to falsehoods made in a solemn affirmation in lieu of an oath.

The Supreme Court has identified the following elements of perjury:

• The accused made a statement under oath or executed an affidavit concerning a material matter;
• The statement or affidavit was made before a competent officer authorized to receive and administer oaths;
• The accused made a willful and deliberate assertion of a falsehood; and
• The sworn statement or affidavit was required by law or was made for a legal purpose.

These elements were stated in Diaz v. People of the Philippines, G.R. No. 65006, 1990, and reiterated in Ilusorio v. Bildner, G.R. Nos. 173935-38, 2008. See also Article 183 of the Revised Penal Code.[Revised Penal Code](#L1.189) [Diaz v. People of the Philippines](#J5.10) [Ilusorio v. Bildner](#J9.11)

What Makes a False Statement Material?

A statement is material when it relates to the subject under investigation or has a natural tendency to influence the decision of the officer, agency, or tribunal receiving it. A trivial or irrelevant inaccuracy is not sufficient for perjury.

For example, a false statement about a person’s prior criminal conviction may be material when included in a government application that requires disclosure of criminal history. In Diaz v. People of the Philippines, the Court treated a knowingly false statement in a government personal data sheet as perjury rather than falsification of an official document.

Willfulness and Deliberate Falsehood

Perjury does not arise from every inaccurate statement. The prosecution must prove that the accused acted knowingly and deliberately. An honest mistake, negligence, confusion, or good-faith belief in the truth of the statement may negate criminal liability.

Villanueva v. Secretary of Justice and Monfort III v. Salvatierra emphasize that perjury is the willful and corrupt assertion of a falsehood under oath or affirmation concerning a material matter. The prosecution must therefore establish more than the falsity of the statement; it must also prove the accused’s deliberate intent to assert a falsehood.[Villanueva v. Secretary of Justice](#J7.18) [Monfort III v. Salvatierra](#J13.13)

False Testimony in Criminal Cases

False testimony is treated differently depending on the proceeding and the person favored by the testimony. Article 181 of the Revised Penal Code penalizes false testimony favorable to the defendant in a criminal case.

The penalty stated in the provision is arresto mayor in its maximum period to prision correccional in its minimum period and a fine not exceeding the amount specified in the statute when the prosecution is for a felony punishable by an afflictive penalty. In other cases, the provision imposes arresto mayor in any period.[Revised Penal Code](#L1.187)

The prosecution must prove that the accused testified falsely, that the testimony was given in a criminal case, that the testimony favored the defendant, and that the false testimony concerned a material matter. The testimony must also be shown to have been deliberately false rather than merely mistaken.

False Testimony in Civil Cases

Article 182 of the Revised Penal Code punishes false testimony in civil cases. The penalty depends on the amount in controversy.

Where the amount in controversy exceeds the statutory threshold stated in the provision, the penalty is prision correccional in its minimum period and a fine not exceeding the amount stated in the law. Where the amount does not exceed that threshold or cannot be estimated, the penalty is arresto mayor in its maximum period to prision correccional in its minimum period, together with the applicable fine.[Revised Penal Code](#L1.188)

The charge requires proof that the testimony was given in a civil case and that the false statement was material to the issues being litigated. The mere existence of inconsistent statements is not automatically sufficient; the prosecution must prove which statement was false and that the accused deliberately made it.

Offering False Testimony or a False Witness

Article 184 of the Revised Penal Code punishes a person who knowingly offers in evidence a false witness or false testimony in a judicial or official proceeding.

This offense is distinct from the false testimony committed by the witness. It focuses on the person who knowingly presents or offers the false evidence. The prosecution must establish that the evidence or witness was false, that the accused knew of its falsity, and that the evidence was offered in a judicial or official proceeding.[Revised Penal Code](#L1.190)

Falsification of Public Documents

Falsification is not the same as perjury. Perjury primarily concerns a deliberate false statement under oath. Falsification concerns the alteration, fabrication, or false narration of facts in a document under circumstances covered by the Revised Penal Code.

Article 171 covers falsification by a public officer, employee, notary, or ecclesiastical minister who takes advantage of an official position. One recognized mode is making untruthful statements in a narration of facts.

For this mode, the prosecution generally must prove that:

• The accused is a public officer, employee, notary public, or other person covered by the provision;
• The accused took advantage of the official position;
• The accused made untruthful statements in a public document;
• The accused had a legal obligation to disclose the truth of the facts narrated; and
• The facts narrated were absolutely false.

Jurisprudence also requires proof that the falsification was committed with wrongful intent to injure a third person, depending on the specific mode and factual setting. These requirements were discussed in Mangangey v. Sandiganbayan, G.R. Nos. 147773-74, 2008, and in Department of Finance-Revenue Integrity Protection Service v. Office of the Ombudsman, G.R. No. 240137, 2020.[Mangangey v. Sandiganbayan](#J6.12) [Department of Finance-Revenue Integrity Protection Service v. Office of the Ombudsman](#J8.16)

Perjury Compared With Falsification

A false statement in an official document may constitute perjury, falsification, or both in separate legal theories, depending on the nature of the document and the circumstances of its execution.

Offense	Main concern	Typical proof required
Perjury	A deliberate falsehood under oath or affirmation	Materiality, competent officer, legal or official purpose, and willful falsity
Falsification	False or altered contents of a document	Covered document, prohibited act, official position where required, and falsity
False testimony	False testimony in a criminal or civil case	False material testimony and the nature of the proceeding

In Diaz v. People of the Philippines, the Court distinguished perjury from falsification by explaining that perjury punishes the willful assertion of a falsehood under oath, while falsification generally involves making a document appear to contain facts or acts that are untrue.[Diaz v. People of the Philippines](#J5.10)

Estafa Through False Pretenses

Falsehoods may also constitute estafa when they are used to obtain money, property, or another benefit. Article 315, paragraph 2(a), of the Revised Penal Code covers defrauding another by using a fictitious name or falsely pretending to possess power, influence, qualifications, property, credit, agency, business, or imaginary transactions.

The principal elements of estafa by false pretenses are:

• The accused made a false pretense or fraudulent representation concerning a covered matter;
• The false pretense was made before or at the same time as the fraud;
• The false pretense was the reason the offended party parted with money or property; and
• The offended party suffered damage.

In Mangangey v. Sandiganbayan, the Court described the need to prove the false representation, its timing, its causal effect on the victim, and the resulting damage. A later failure to perform a promise is not automatically estafa; the deceit must ordinarily exist before or simultaneously with the victim’s dispossession.[Mangangey v. Sandiganbayan](#J6.12)

Other Deceits

Article 318 of the Revised Penal Code serves as a catch-all provision for deceit not covered by the preceding provisions on estafa and related offenses. It punishes a person who defrauds or damages another through another deceit not specifically mentioned in the preceding articles.

The elements are:

• A false pretense, fraudulent act, or deceit other than those covered by the preceding provisions;
• The deceit was made or executed before or simultaneously with the fraud; and
• The offended party suffered damage or prejudice.

Fraudulent concealment may qualify as deceit when the person had a duty to disclose a material fact. In Guinhawa v. People of the Philippines, G.R. No. 162822, 2005, the Court recognized that deceit may be committed by omission or suppression of a material fact, not only by an affirmative misrepresentation.[Guinhawa v. People of the Philippines](#J3.17)

The same elements were reiterated in Llonillo v. People of the Philippines, G.R. No. 246787, 2024. The provision may apply where the conduct causes damage but does not fall within the specific forms of deceit covered by Articles 315 to 317.[Llonillo v. People of the Philippines](#J11.14)

Falsification Combined With Estafa

Falsification and estafa may form a complex crime when the falsification is used as the necessary means to commit the estafa. Article 48 of the Revised Penal Code provides that when one offense is a necessary means for committing another, the penalty for the more serious crime is imposed in its maximum period.

In Mangangey v. Sandiganbayan and Fernan, Jr. v. People of the Philippines, the Court recognized liability for complex crimes involving falsification and fraud where false public documents were used to cause the release of public funds or to support nonexistent deliveries.[Mangangey v. Sandiganbayan](#J6.12) [Fernan, Jr. v. People of the Philippines](#J10.46)

Proof of conspiracy may be established through coordinated acts and circumstantial evidence. Direct proof of an express agreement is not always necessary, but the circumstances must establish a common unlawful objective beyond reasonable doubt.

False Statements Under Special Laws

Several special laws punish false statements in specific regulatory settings. The applicable special law should be examined before filing a complaint under the general provisions of the Revised Penal Code.

For example, the National Internal Revenue Code provides that a declaration, return, or other statement required under the Code may contain a written declaration that it is made under the penalties of perjury. A person who willfully files a statement containing information that is untrue and incorrect as to every material matter may be subject to the penalties prescribed for perjury.[National Internal Revenue Code](#L5.544)

The New Central Bank Act separately penalizes the willful making of a false or misleading statement on a material fact to the Monetary Board or to Bangko Sentral examiners.[New Central Bank Act](#L12.43)

Other regulatory statutes may provide separate offenses for false applications, declarations, evidence, or representations. A mining-related false statement made under oath, for example, may be punished under the Revised Penal Code by virtue of the applicable mining statute.[The Mining Act](#L2.125) [Mineral Resources Development Decree of 1974](#L6.75)

Evidence Needed for Conviction

Because these are criminal offenses, the prosecution must prove guilt beyond reasonable doubt. The following evidence is commonly significant:

• The original affidavit, testimony, application, return, or questioned document;
• Proof that the statement was made under oath or affirmation, when required;
• Proof of the authority and competence of the administering officer;
• Evidence establishing which statement was false;
• Evidence showing that the false statement was material;
• Evidence of the accused’s knowledge and deliberate intent; and
• Proof of damage, inducement, or official consequence when required by the offense.

In document-related cases, the prosecution should also establish the document’s authenticity, execution, contents, and legal character. In fraud cases, it must connect the false representation to the victim’s decision to surrender money or property.

Defenses to Falsehood-Based Crimes

Potential defenses depend on the specific offense charged. Common defenses include the following:

• No materiality: the statement did not relate to an issue capable of influencing the proceeding or official action;
• No oath or competent authority: the statement was not made under a legally effective oath or before an authorized officer;
• Good faith or honest mistake: the accused believed the statement to be true and did not act deliberately;
• No legal or official purpose: the affidavit or statement was not required by law and was not made for a legally recognized purpose;
• No causal connection: in estafa, the false representation did not induce the victim to part with property; and
• No damage or prejudice: the prosecution failed to prove the injury required by the offense.

In Bermudez v. Castillo, G.R. No. 714-A, 1937, the Court discussed the privilege against self-incrimination and held that the protection extends to criminal, civil, and administrative proceedings. The privilege may become relevant when authorities seek to compel a person to provide evidence that would tend to establish the person’s own liability.[Bermudez v. Castillo](#J1.3)

Venue in Perjury Cases

Venue in criminal cases is jurisdictional. In perjury prosecutions, the proper venue is generally the place where the deliberate false statement was made or where the false statement became material to the proceeding, rather than merely the place where the affidavit was notarized.

Ilusorio v. Bildner held that the action for perjury must be instituted and tried in the municipality or territory where the deliberate untruthful statement was made. This rule should be considered before filing a criminal complaint.[Ilusorio v. Bildner](#J9.11)

How to Assess a Possible Case

Before pursuing a complaint, identify the exact document, testimony, or representation involved. Determine whether it was sworn, whether the receiving officer was authorized, whether the statement was material, and whether the evidence shows deliberate falsity rather than an innocent mistake.

For a fraud-based case, determine whether the false statement preceded or accompanied the transfer of property. A mere failure to pay a debt or perform a promise, without proof of deceit at the beginning of the transaction, does not by itself establish estafa.

For falsification, determine whether the questioned document is public or private, whether the accused had the required status or official position, and whether the document contains an alteration, fabricated participation, false narration, or another prohibited act.

Final Observations

Philippine law does not treat every lie as a crime. Criminal liability generally requires a legally recognized setting, such as a sworn statement, judicial proceeding, official document, regulated filing, or property transaction, together with materiality, deliberate falsity, and any additional damage or causal requirements.

The proper charge should be selected only after examining the exact statement, the proceeding or transaction in which it was made, the accused’s purpose, and the evidence proving falsity and intent. Complaints should identify the specific statutory elements and attach the documents or testimony that establish each element beyond reasonable doubt.

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