False accusations and perjury undermine the administration of justice and can cause irreparable harm to the reputation, liberty, and livelihood of innocent individuals. In the Philippine legal system, these acts are penalized under the Revised Penal Code (RPC) as serious offenses against public interest. A person who knowingly files a baseless criminal complaint under oath or provides false testimony in a judicial proceeding may be held criminally liable. Victims have a clear remedy: the filing of a separate criminal case for perjury or false testimony, coupled with possible civil claims for damages. This article provides a comprehensive guide to the legal framework, elements of the offenses, procedural requirements, and every practical aspect of pursuing such cases.

Legal Basis and Distinction Between Offenses

The primary crimes involved are governed by Articles 180 to 184 of the Revised Penal Code (Act No. 3815, as amended).

Perjury (Article 183, RPC) applies to any person who, not falling under the provisions on false testimony, knowingly makes untruthful statements or executes an affidavit upon a material matter before a competent officer authorized to administer an oath in cases where the law requires such oath. This is the most common charge when someone files a false criminal complaint-affidavit, a sworn counter-affidavit, or any sworn statement in administrative or judicial proceedings.
False Testimony Against a Defendant (Article 180, RPC) covers a witness who deliberately lies against an accused in a criminal case. The penalty escalates depending on the severity of the sentence imposed on the defendant (reclusion temporal if death penalty was possible, down to arresto mayor if acquitted).
False Testimony Favorable to the Defendant (Article 181, RPC) punishes lies that help the accused.
False Testimony in Civil or Other Proceedings (Article 182, RPC) applies to lies in civil actions, special proceedings, or other official inquiries.
Offering False Testimony in Evidence (Article 184, RPC) penalizes anyone who knowingly presents a false witness or testimony.

False accusations that are not made under oath fall under libel or slander (Articles 353-359, RPC) if written or oral, but the moment an oath is involved—as required in criminal complaints, affidavits, or court testimonies—the offense becomes perjury or false testimony. Malicious prosecution itself is not a separate crime but gives rise to civil liability for damages under Articles 19, 20, 21, and 2219 of the Civil Code when the filing is done with bad faith.

Elements of Perjury (Article 183)

To succeed, the following must be proven beyond reasonable doubt:

The accused made a statement under oath or executed an affidavit.
The statement or affidavit was made before a competent officer authorized to administer an oath (e.g., prosecutor, notary public, clerk of court, or judge).
The statement concerns a material matter (one that can affect the outcome of the case).
The statement is false.
The accused knew the statement to be false at the time it was made.
The oath was required by law (e.g., every criminal complaint-affidavit under Rule 110, Section 3 of the Revised Rules of Criminal Procedure).

Mere error or honest mistake is not perjury; the falsity must be willful and deliberate.

Penalty

Perjury is punishable by arresto mayor in its maximum period (4 months and 1 day to 6 months) to prision correccional in its minimum period (6 months and 1 day to 2 years and 4 months). Fines may also be imposed. False testimony carries heavier penalties depending on the case stage and outcome.

Prescription Period

The offense prescribes in ten (10) years from the commission of the crime because the penalty is correctional (Article 90, RPC). The period begins when the false statement is made, not when the victim discovers it. If the false testimony leads to a conviction, prescription may be interrupted or affected by subsequent proceedings.

Jurisdiction and Venue

Court Jurisdiction: Metropolitan Trial Court (MeTC), Municipal Trial Court (MTC), or Municipal Circuit Trial Court (MCTC) because the maximum imposable penalty (2 years and 4 months) does not exceed six years (Republic Act No. 7691). Regional Trial Courts have no original jurisdiction.
Venue: The case must be filed in the court or prosecutor’s office where the false statement was made or the affidavit was sworn (e.g., the city or municipality where the complainant executed the false criminal complaint). Territorial jurisdiction follows the place of commission.

Preliminary investigation is not mandatory because the penalty is below four (4) years, two (2) months, and one (1) day (Rule 112, Section 1, Revised Rules of Criminal Procedure). However, prosecutors routinely accept and evaluate complaints.

Step-by-Step Procedure to File the Case

Determine That You Have a Valid Cause of Action
Confirm that the original accusation was sworn, material, and knowingly false. The best evidence is usually the final acquittal or dismissal of the original case with a finding that the charges were fabricated, but acquittal is not strictly required if independent proof of falsity exists.
Gather and Organize Evidence
Essential documents include:
- Certified true copy of the false complaint-affidavit or testimony transcript.
- Proof of the oath (jurat, notarization, or court record).
- Evidence establishing falsity (e.g., official documents, photographs, video recordings, bank records, alibis, or witness statements contradicting the accusation).
- Copy of any court decision dismissing the original case or acquitting you.
- Proof of material damage (medical certificates, job loss documents, reputational harm).
  All evidence must be attached to the complaint.
Draft the Complaint-Affidavit
Use the standard legal format:
- Caption: “Republic of the Philippines” and the court or “Office of the City/Provincial Prosecutor.”
- Personal details of complainant (you) and respondent (the false accuser).
- Detailed narration of facts showing each element of perjury or false testimony.
- Specific allegations of willfulness and materiality.
- Prayer for the filing of an Information and prosecution of the respondent.
- Signature and jurat (notarized or subscribed before a prosecutor).
  Attach all annexes (marked as Annexes “A,” “B,” etc.) and a verification and certification against forum shopping.
File the Complaint
Submit the original and sufficient copies (usually three) to the Office of the City or Provincial Prosecutor in the proper territorial jurisdiction. Pay the filing fee (approximately Php 300–500 plus legal research fee). If the penalty allows direct filing, the complaint may also be filed directly with the MTC, but filing with the prosecutor is the standard and safer route to ensure proper evaluation.
Preliminary Evaluation and Counter-Affidavit
The prosecutor assigns an investigating prosecutor who may require the respondent to submit a counter-affidavit within ten (10) days. You may file a reply-affidavit if new matters are raised. The prosecutor then issues a resolution recommending either the filing of an Information or dismissal.
Filing of Information and Court Proceedings
If probable cause is found, the prosecutor files the Information with the MTC. You (the private complainant) will receive a subpoena for arraignment. The case then proceeds to:
- Arraignment (plea of guilty or not guilty).
- Pre-trial conference.
- Trial on the merits (presentation of evidence).
- Promulgation of judgment.
  The entire process may take one to three years depending on court congestion.
Civil Action for Damages
Simultaneously or separately, file a civil complaint for damages under the Civil Code for malicious prosecution. Recoverable damages include:
- Moral damages (for mental anguish, besmirched reputation).
- Exemplary damages (to deter similar acts).
- Actual damages (attorney’s fees, lost income, medical expenses).
  This can be reserved in the criminal case or filed independently. Many victims file both criminal perjury and civil damages cases.

Important Practical Considerations

Counter-charges While the Original Case Is Pending: You may file the perjury case even while the false accusation is still ongoing. Courts treat them as independent proceedings.
Effect on the Original Case: A perjury charge does not automatically dismiss the original case, but strong evidence of falsity can be used to move for dismissal or acquittal in the first case.
If the False Accuser Is a Public Officer: An administrative complaint before the Ombudsman or Civil Service Commission may be filed concurrently for grave misconduct or conduct prejudicial to the service.
Burden of Proof: The prosecution must prove guilt beyond reasonable doubt. Corroborative evidence is highly persuasive.
Costs: Filing fees, sheriff’s fees, and potential stenographic notes add up. Indigent litigants may apply for exemption under Rule 3, Section 21 of the Rules of Court.
Appeals: Conviction or acquittal may be appealed to the Regional Trial Court, then to the Court of Appeals, and ultimately to the Supreme Court on questions of law.
Related Offenses: If the false accusation caused illegal detention, consider charging arbitrary detention (Article 124, RPC) or other applicable crimes. Falsification of documents (Article 172) may apply if the affidavit itself was forged.

Statute of Limitations and Extinctive Circumstances

The ten-year prescriptive period is interrupted by filing the complaint before the prosecutor. Pardon by the offended party does not extinguish the crime because perjury is a crime against public interest. Amnesty or absolute pardon by the President is possible but rare.

Common Scenarios and Case Law Patterns

False accusations in domestic violence or VAWC cases.
Fabricated estafa or BP 22 complaints to pressure payment of debts.
False testimony in annulment, custody, or inheritance cases.
Police or barangay blotter entries that later become sworn complaints.

In all instances, the key is documentary proof that directly contradicts the sworn statement.

Filing a case for false accusations and perjury is a powerful tool to vindicate one’s rights and deter abuse of the justice system. The process demands meticulous preparation of evidence and strict adherence to procedural rules, but it provides both criminal accountability and civil redress for the harm suffered.