The answer is not always 10 days. For a regular preliminary investigation before a Philippine city, provincial, regional, or state prosecutor, the subpoena must generally give you at least 10 days from receipt of the subpoena and complaint-affidavit to submit your counter-affidavit. However, your actual deadline is the specific filing or hearing date written in the subpoena. Ombudsman cases now generally allow 15 non-extendible days, while expedited prosecutor proceedings follow shorter timelines and normally prohibit extensions. (Limnestor)

Counter-Affidavit Deadlines at a Glance

Type of proceeding	Usual deadline	Can you ask for an extension?
Regular DOJ-NPS preliminary investigation	File on the date stated in the subpoena, which must be at least 10 days after receipt of the subpoena and complaint-affidavit	Yes, but only for meritorious reasons and for no more than 10 additional days
Expedited preliminary investigation	File on the date stated in the subpoena; the hearing must be scheduled within 15 calendar days from the prosecutor’s receipt of the complete records	Generally no; motions for extension are prohibited
Virtual expedited preliminary investigation	Follow the prosecutor’s electronic filing order; any additional period covered by the special virtual procedure cannot exceed 5 calendar days	Very limited
Summary investigation	Usually conducted ex parte, meaning the prosecutor may resolve it without requiring a counter-affidavit	No ordinary counter-affidavit stage
Ombudsman criminal, administrative, or forfeiture case	15 days from receipt of the Ombudsman’s order	No; the period is expressly non-extendible
Investigation by another government agency	Whatever period is stated in the agency’s law, rules, or order	Depends on the agency

The controlling document is always the subpoena or order you actually received. Check the issuing office, case number, date of receipt, stated filing date, and whether the proceeding is described as regular, expedited, summary, administrative, or Ombudsman-related.

What Is a Counter-Affidavit?

A counter-affidavit is the respondent’s sworn written answer to a criminal or administrative complaint.

You are the “respondent” when someone has filed a complaint accusing you of an offense but no criminal case has yet been filed in court against you. The person filing the complaint is the “complainant.”

A proper counter-affidavit normally contains:

Your version of what happened
Your specific answers to the complainant’s allegations
Legal and factual defenses
Affidavits from supporting witnesses
Contracts, receipts, messages, photographs, records, certifications, or other evidence
An explanation of why the evidence does not establish the elements of the alleged offense

Under the 2024 DOJ-NPS Rules, a counter-affidavit must be subscribed and sworn to before a prosecutor, another government official authorized to administer oaths, or, when they are unavailable, a notary public. Witness affidavits and supporting documentary evidence may be attached. (Limnestor)

A preliminary investigation is not yet a trial. It is an executive proceeding in which the prosecutor decides whether the available evidence justifies filing an Information—the formal criminal charge—in court. For DOJ-NPS cases, the current standard is prima facie evidence with reasonable certainty of conviction, which requires the prosecutor to evaluate whether the evidence appears admissible, credible, capable of preservation, and sufficient to establish the offense and the respondent’s identity. (Limnestor)

The 10-Day Rule for Regular Prosecutor Cases

The main rule for regular preliminary investigations is found in Department of Justice Department Circular No. 015, Series of 2024, known as the 2024 DOJ-NPS Rules on Preliminary Investigations and Inquest Proceedings.

These rules apply to prosecution offices under the National Prosecution Service and generally require a regular preliminary investigation when the penalty prescribed for the alleged offense is at least six years and one day, regardless of any fine. (Limnestor)

The prosecutor’s subpoena must:

State the date, time, and place of the preliminary investigation hearing.
Include the complaint-affidavit and its attachments.
Direct the respondent to file a counter-affidavit and any witness affidavits on the date set.
Give the respondent at least 10 days from receipt of the subpoena and complaint-affidavit before that filing date. (Limnestor)

“At least 10 days” does not always mean “exactly 10 days”

Suppose you receive the complete subpoena package on August 3. The filing date cannot ordinarily be earlier than the expiration of the required minimum period. The prosecutor may nevertheless schedule the hearing later—for example, August 18 or August 25—provided the date remains within the procedural timetable for the preliminary investigation.

You should therefore follow the specific date stated in the subpoena, not automatically calculate your own deadline and assume that the tenth day is the filing date.

When the complaint involves voluminous records, the prosecutor must set a separate date for obtaining the complete records, and that pickup date must be at least 10 days before the scheduled hearing. The respondent must also be given an opportunity to inspect object evidence and take photographs at the respondent’s expense. (Limnestor)

Why Older Articles Simply Say “Within 10 Days”

Section 3(c) of Rule 112 of the Rules of Criminal Procedure traditionally stated that a respondent must submit counter-affidavits within 10 days from receiving the subpoena, complaint, and supporting evidence. Many websites, templates, and older court decisions still quote that wording. (Lawphil)

The legal framework changed for DOJ-NPS prosecution offices.

In Atty. Hazel L. Meking v. Remulla, G.R. No. 280455, the Supreme Court upheld Department Circular No. 015 as a valid exercise of DOJ authority. The Court explained that preliminary investigations conducted by prosecutors are executive rather than judicial proceedings. It also confirmed that provisions of Rule 112 inconsistent with the DOJ-NPS Rules are considered repealed for those prosecutorial proceedings.

This does not mean Rule 112 is irrelevant everywhere. The Supreme Court clarified that DOJ Department Circular No. 015 regulates investigations conducted by DOJ-NPS prosecutors. Other investigative bodies may be governed by their own statutes, regulations, or procedural rules.

Shorter Deadlines in Expedited Preliminary Investigations

Department Circular No. 028, Series of 2024 established separate procedures for lower-penalty offenses handled by the National Prosecution Service. The circular was adopted on November 13, 2024 and registered with the Office of the National Administrative Register. (UP Law Center)

Summary investigation

A summary investigation generally covers offenses carrying:

Imprisonment from one day to one year;
A fine, regardless of amount; or
Both, as defined by the circular.

It is an ex parte proceeding. This means the prosecutor may evaluate and resolve the complaint using the complainant’s submissions without conducting the ordinary subpoena-and-counter-affidavit process. A respondent should not assume that every complaint will result in an invitation to submit a counter-affidavit. (Scribd)

Expedited preliminary investigation

An expedited preliminary investigation generally covers offenses carrying imprisonment from one year and one day to six years that fall exclusively within the jurisdiction of first-level courts such as the Metropolitan Trial Court, Municipal Trial Court, or Municipal Circuit Trial Court. If the offense is legally cognizable by the Regional Trial Court, regular preliminary investigation rules apply instead. (Scribd)

In an expedited proceeding:

The prosecutor must issue the subpoena within five calendar days from receiving the complete records.
The subpoena sets the hearing date.
The hearing must occur within 15 calendar days from the prosecutor’s receipt of the complete records.
The respondent must file the counter-affidavit on the date stated in the subpoena.
A motion for extension of time is prohibited.
No reply-affidavit or rejoinder-affidavit is ordinarily entertained. (Scribd)

The often-mentioned “five-day deadline” should not be treated as the universal deadline for expedited cases. Five days appears in several parts of the expedited rules, including issuance of the subpoena, access to voluminous records, clarificatory hearings, and a limited virtual-filing situation. The respondent’s basic filing obligation remains the date specified in the subpoena. (Scribd)

The 15-Day Rule in Ombudsman Cases

Cases before the Office of the Ombudsman follow different rules.

Under Administrative Order No. 1, Series of 2026, or the Revised Rules of Procedure of the Office of the Ombudsman, the investigating officer issues an order attaching the complaint and supporting evidence. The respondent then has a non-extendible period of 15 days from receipt of that order to submit:

A counter-affidavit;
Controverting evidence; and
Proof that a copy was served on the complainant.

The procedure applies, unless a more specific rule provides otherwise, to docketed criminal, administrative, and forfeiture cases before the Ombudsman.

If the respondent fails to submit a counter-affidavit despite proper notice, cannot be served, or refuses to receive the order, the Ombudsman may consider the case submitted for resolution based on the evidence already on record. Motions to dismiss, motions for a bill of particulars, and other dilatory pleadings are prohibited.

Older references to a 10-day Ombudsman deadline may therefore be outdated for cases governed by the 2026 Revised Rules. The new rules apply prospectively and to pending cases insofar as practicable, and they repeal or modify inconsistent earlier regulations.

How to Count the Days

Unless the governing order or special rule states otherwise, periods are generally computed by:

Excluding the day you received the subpoena or order; and
Including the last day of the period.

If the last day falls on a Saturday, Sunday, or legal holiday in the place where the relevant office sits, the period generally runs until the next working day. This method appears in Rule 22 of the Rules of Court and is consistent with Article 13 of the Civil Code. (Lawphil)

Example

You personally receive an Ombudsman order on August 3.

August 3 is excluded.
August 4 is day one.
August 18 is day 15.

If August 18 is a Saturday, Sunday, or applicable legal holiday, the next working day would ordinarily be the final day, subject to the wording of the order and the governing special rules.

Weekends occurring inside the period are normally counted. They are not automatically removed merely because government offices are closed. Only the treatment of the final day changes when it falls on a non-working day.

Keep the envelope, registry return card, process server’s acknowledgment, email header, or other proof showing when you received the papers. A disagreement about the deadline often becomes a disagreement about the actual date of service.

What to Do Immediately After Receiving a Subpoena

Identify the issuing office. Determine whether the document came from a city or provincial prosecutor, the DOJ Prosecution Staff, the Ombudsman, or another government body.
Read the entire document. Check whether it is called a subpoena, order, notice, directive, or invitation. A police or National Bureau of Investigation invitation is not automatically the same as a prosecutor’s subpoena in a formal preliminary investigation.
Record the date and manner of receipt. Photograph the envelope and receiving stamp. Save electronic delivery notices and download all attachments.
Check whether the complaint package is complete. The subpoena should include the complaint-affidavit and supporting attachments. Make a written inventory of anything referred to but not provided.
Calendar the stated deadline. Treat the date in the subpoena as controlling unless the issuing office formally changes it.
Organize the allegations by element. List every offense alleged and identify the facts the complainant must prove for each legal element.
Collect evidence immediately. Request CCTV recordings, bank records, employment records, building logs, official certifications, messages, receipts, medical records, and witness statements before they disappear or become difficult to obtain.
Prepare, swear to, serve, and file the counter-affidavit. Do not wait until the final day to arrange notarization, photocopying, electronic filing, courier delivery, or personal filing.

Documents Commonly Needed

Document	Purpose
Subpoena or Ombudsman order	Shows the issuing office, docket number, and deadline
Envelope, email, or proof of receipt	Establishes when the period began
Complete complaint-affidavit and annexes	Identifies the accusations and evidence to answer
Respondent’s counter-affidavit	Presents the respondent’s sworn defenses
Witness affidavits	Supports the respondent’s version through other persons
Documentary evidence	Supports specific factual defenses
Annex index and page numbering	Helps the prosecutor locate evidence quickly
Valid government-issued ID	Commonly required when administering the oath
Proof of service	Shows that the other party received the required copy
Filing receipt or stamped receiving copy	Proves timely submission

For a regular DOJ-NPS preliminary investigation, the respondent or authorized representative generally files the original counter-affidavit plus two duplicate copies for the prosecution office and furnishes a copy to each complainant. Personal appearance may be dispensed with when the affidavit was properly sworn before an authorized prosecutor, government officer, or notary, although the prosecutor may still require attendance at a later clarificatory hearing. (Limnestor)

What Makes a Counter-Affidavit Effective?

A useful counter-affidavit does more than deny the accusation.

Answer the specific facts

Address the complainant’s account paragraph by paragraph. Identify which facts are admitted, denied, partly true, misleading, or outside your personal knowledge.

A blanket statement such as “I deny everything” rarely helps the prosecutor understand the defense.

Address every element of the alleged offense

For example, a complaint for estafa may involve alleged deceit, reliance, damage, or misappropriation, depending on the provision invoked. A defense that discusses only payment history but ignores the alleged false representation may leave an important element unanswered.

Explain the documents

Do not merely attach hundreds of pages. State what each important annex proves.

Examples:

“Annex 3 shows that the payment was made before the demand letter.”
“Annex 5 establishes that I was outside the city on the alleged date.”
“Annex 8 contains the complete conversation, including the messages omitted from the complaint.”

Preserve electronic evidence properly

Keep original devices, files, URLs, account information, timestamps, email headers, and unedited exports. Cropped screenshots can be challenged as incomplete or misleading.

Remain truthful

A counter-affidavit is made under oath. Knowingly making a false statement about a material matter may expose the affiant to prosecution for perjury under Article 183 of the Revised Penal Code, as amended by Republic Act No. 11594 in 2021. (Lawphil)

Can You Ask for More Time?

In a regular DOJ-NPS preliminary investigation, an extension is possible only when the interest of justice demands it. Recognized examples include needing reasonable time to:

Engage counsel;
Examine or verify voluminous records;
Confirm the authenticity or accuracy of documents; or
Research novel, complicated, or technical factual or legal issues.

Any extension granted on meritorious grounds cannot exceed 10 days. It is discretionary, not automatic. (Limnestor)

A request should be filed before the existing deadline and should clearly state:

The original deadline;
The amount of additional time requested;
The specific reason;
The steps already taken to complete the counter-affidavit; and
Supporting proof, such as evidence of late receipt, hospitalization, voluminous records, or an appointment needed to obtain official documents.

Do not assume that filing a motion automatically stops the deadline. Unless the prosecutor grants the request, the original date remains operative.

Extensions are generally prohibited in expedited preliminary investigations, while the Ombudsman’s current 15-day period is expressly non-extendible. (Scribd)

What Happens If You Miss the Deadline?

Failure to file does not automatically prove guilt. It can, however, cause you to lose your opportunity to present your defenses before the prosecutor decides whether to file the criminal case in court.

For regular DOJ-NPS investigations, if the respondent received the subpoena at the last known address but fails to appear or file a counter-affidavit without a justifiable reason, the prosecutor may consider the complaint submitted for resolution. (Limnestor)

The same practical consequence applies under the current Ombudsman rules: the case may be resolved using the complainant’s evidence and the existing record.

When a deadline has already passed:

Prepare the counter-affidavit without further delay.
File it together with a verified motion explaining the late submission.
Attach proof supporting the explanation.
Ask that the affidavit be admitted in the interest of justice.
Confirm whether the case has already been submitted for resolution or resolved.

Admission is not guaranteed. The longer the unexplained delay, the more difficult it becomes to obtain favorable consideration.

Filing a Counter-Affidavit From Abroad

An overseas Filipino worker, emigrant, or foreign respondent may not always need to travel to the Philippines solely to sign the affidavit. The proper method depends on the prosecutor’s order, the country where the document is executed, and the filing arrangements accepted by the prosecution office.

Common options include:

Signing before a Philippine consular officer

Philippine embassies and consulates may perform notarial functions for eligible applicants. Personal appearance, the original document, a valid passport, copies, an appointment, and a consular fee are commonly required. Requirements and processing times vary by post. (nagoyapcg.dfa.gov.ph)

Local notarization followed by an apostille

In a country covered by the Hague Apostille Convention, the affidavit may generally be notarized locally and apostilled by the competent authority. The apostille replaces the former embassy “red ribbon” or authentication step for covered public documents. (Philippine Embassy in New Delhi)

Foreign nationals should check whether the Philippine consular post will notarize documents for non-Filipino citizens. Some posts direct foreign nationals to use a local notary and the applicable apostille or authentication process instead. (Philippine Embassy in New Delhi)

Because consular appointments, apostilles, international couriers, and translations can take several days, an overseas respondent should begin these arrangements immediately. Confirm whether the prosecution office accepts electronic filing, requires hard copies afterward, or allows filing through an authorized Philippine representative.

Documents written in another language should ordinarily be accompanied by a reliable English or Filipino translation, with the translator’s certification or other authentication requested by the receiving office.

Common Mistakes to Avoid

Counting from the date printed on the subpoena instead of the date it was received
Assuming every case has an automatic 10-day deadline
Ignoring the specific hearing or filing date stated in the order
Filing only an unsworn letter or narrative
Submitting a motion to dismiss instead of a counter-affidavit
Requesting an extension in an expedited or Ombudsman case where extensions are prohibited
Failing to answer one of the alleged offenses
Attaching documents without explaining their relevance
Omitting witness affidavits
Forgetting to serve the complainant
Filing only one copy when the office requires an original and duplicates
Relying on cropped or altered screenshots
Signing before a notary without personally appearing
Assuming an emailed document was successfully filed without an acknowledgment or electronic receipt

Under the regular DOJ-NPS rules, a motion to dismiss filed instead of a counter-affidavit is generally not allowed. If it is verified and already contains the respondent’s factual and legal defenses, the prosecutor may treat it as the counter-affidavit itself. (Limnestor)

Frequently Asked Questions

Is the counter-affidavit deadline 10 calendar days or working days?

The regular DOJ-NPS rule says the subpoena must provide at least 10 “days” from receipt. In the absence of a contrary special instruction, periods are generally counted continuously, including intervening weekends. If the final day falls on a Saturday, Sunday, or legal holiday, the next working day ordinarily becomes the deadline. Always follow the specific date stated in the subpoena.

Does the 10-day period begin when the complaint was filed?

No. For the respondent’s regular DOJ-NPS deadline, the important event is receipt of the subpoena together with the complaint-affidavit. The prosecutor’s internal timelines may run from receipt of the complete case records, but those are different from the respondent’s filing period. (Limnestor)

What if the subpoena arrived without the complaint’s attachments?

Immediately notify the prosecutor’s office in writing, identify every missing attachment, request complete copies, and preserve proof of the incomplete service. Do not simply ignore the subpoena. Ask the prosecutor to confirm the filing date after the complete records are made available.

Can I file my counter-affidavit before the scheduled hearing?

Many prosecution offices accept advance filing, but filing procedures differ. Confirm with the records section or investigating prosecutor whether advance personal filing, courier filing, or electronic filing is permitted and whether personal appearance is required for the oath.

Do I need a lawyer to submit a counter-affidavit?

The rules do not make legal representation an absolute requirement in every preliminary investigation. However, the affidavit can determine whether a criminal charge is filed in court, and mistakes involving admissions, incomplete defenses, privilege, evidence, or inconsistent statements can have lasting consequences.

Can I submit additional evidence after filing?

The prosecutor may consider the case submitted for resolution after receiving the counter-affidavit. A clarificatory hearing, reply-affidavit, or rejoinder is not automatic. In regular DOJ-NPS cases, a rejoinder may be allowed when the complainant’s reply raises matters requiring a response. Expedited proceedings generally do not permit reply-affidavits or rejoinders. (Limnestor)

What if I never personally received the subpoena?

Service at a respondent’s last known address can still become important. The prosecutor may require the complainant to prove that the address used was the respondent’s last known address. Gather evidence showing where you actually lived, when you learned of the case, and why you could not respond earlier. (Limnestor)

Is a counter-affidavit the same as an answer filed in court?

No. A counter-affidavit is normally filed during the prosecutor’s preliminary investigation or an agency proceeding. An answer is a different pleading used in civil, administrative, or other proceedings. Once a criminal Information is filed in court, the accused generally enters a plea during arraignment rather than filing the same type of counter-affidavit.

Can the case continue even if I do not file anything?

Yes. The prosecutor or Ombudsman may resolve the complaint based on the evidence already submitted. Silence does not require the investigating officer to dismiss the case.

Key Takeaways

In a regular DOJ-NPS preliminary investigation, file on the date stated in the subpoena, which must be at least 10 days after receipt of the subpoena and complaint-affidavit.
A regular-case extension is discretionary, requires a meritorious reason, and cannot exceed 10 additional days.
In an expedited preliminary investigation, the subpoena date controls and motions for extension are generally prohibited.
A summary investigation may proceed without an ordinary counter-affidavit stage.
In a current Ombudsman case, the respondent generally has 15 non-extendible days from receipt of the order.
Exclude the date of receipt when counting; include the last day, subject to the rule for weekends and legal holidays.
Preserve proof of receipt, file the required copies, serve the complainant, and obtain a stamped or electronic filing acknowledgment.
Missing the deadline may allow the case to be resolved without considering your defenses.