(General legal information in Philippine context.)
1) What “prescription” means in defamation cases
In criminal law, prescription is the time limit within which the State (through the complainant and prosecutor) must institute a criminal action. Once that period lapses, the criminal case is generally time-barred (the accused can seek dismissal on the ground of prescription).
Do not confuse:
- Prescription of crimes (time to file the case), with
- Prescription of penalties (time to enforce a sentence after conviction).
This article focuses on prescription of the criminal action, and also covers the common civil timelines that come up with defamation.
2) What counts as “defamation” under Philippine law
Under the Revised Penal Code (RPC), Title on Crimes Against Honor, the core defamation offenses are:
Libel (RPC Arts. 353–355) Defamation committed through writing, printing, radio, cinematographic exhibition, or similar means—i.e., a form capable of broad dissemination and more permanent record.
Oral Defamation / Slander (RPC Art. 358) Defamatory words spoken orally (not through the “libel” media listed above).
Slander by Deed (RPC Art. 359) Defamation by acts (e.g., insulting gestures or conduct) that cast dishonor, discredit, or contempt.
Related “crimes against honor” (sometimes discussed alongside defamation) include offenses like intriguing against honor, but the prescription discussion below focuses on the classic defamation set.
3) The black-letter prescriptive periods under the Revised Penal Code
A. Libel (including broadcast/media libel): 1 year
Under the RPC’s rules on prescription of crimes, libel has a special prescriptive period: one (1) year.
Practical implication: A libel complaint should be filed with the proper prosecutor/court within 1 year from the legally recognized start of the prescriptive period (see Sections 5–6 below).
B. Oral defamation and slander by deed: 6 months
Also under the RPC’s special prescription rules:
- Oral defamation (slander): 6 months
- Slander by deed: 6 months
Practical implication: These cases are much more time-sensitive than most RPC crimes.
4) Quick reference table (criminal)
| Offense (RPC) | Typical form | Prescriptive period |
|---|---|---|
| Libel (Arts. 353–355) | Written/printed; radio/TV broadcast; similar media | 1 year |
| Oral defamation / slander (Art. 358) | Spoken words (non-broadcast) | 6 months |
| Slander by deed (Art. 359) | Defamatory acts/gestures | 6 months |
Classification warning: If defamatory words are spoken over radio/TV or in a format treated as “libel media,” prosecutors often treat it as libel (1 year) rather than oral defamation (6 months).
5) When the prescriptive period starts running (the “reckoning point”)
For RPC crimes, the prescriptive period generally begins to run from discovery:
- It starts from the day the offense is discovered by the offended party, the authorities, or their agents.
- In defamation, “discovery” is often close to the date of publication (for libel) or utterance/act (for slander/slander by deed), but not always—e.g., a defamatory post in a private group may be discovered later.
For defamation, the usual trigger is tied to “publication”
Publication in defamation means the defamatory imputation is communicated to at least one third person (someone other than the complainant and the accused). Without publication, there is generally no defamation offense.
So for prescription analysis, you often track:
- Date of publication (when it reached a third person), and
- Date of discovery (when the complainant learned of it), if later.
Practical note: Because “discovery” arguments can be contested, many practitioners treat the safest deadline as counting from the earliest provable publication date.
6) What interrupts (stops) prescription—and what usually does not
A. What interrupts prescription (RPC)
For RPC crimes, prescription is interrupted by the filing of the complaint or information that initiates proceedings in the proper forum. In practice, a properly filed complaint for purposes of preliminary investigation is commonly relied upon to interrupt prescription.
After interruption, the period may start running again if proceedings terminate without conviction/acquittal or are unjustifiably stopped for reasons not attributable to the accused.
B. What usually does not interrupt prescription
These commonly do not reliably stop the clock:
- Merely messaging the offender or demanding an apology
- Filing a police blotter entry (by itself)
- Posting a rebuttal online
- Informal settlement talks (unless part of a mechanism that legally suspends periods, discussed below)
Best practice: Assume the clock keeps running until a proper complaint is filed in the appropriate channel.
7) Special issues in “online defamation” (Cyberlibel under RA 10175)
A. What cyberlibel is
The Cybercrime Prevention Act (RA 10175) penalizes libel committed through a computer system or similar means (“cyberlibel”), generally with a penalty one degree higher than traditional libel.
B. The major prescription question: Is cyberlibel also “1 year,” or longer?
Cyberlibel creates a recurring legal debate in practice because:
- Traditional libel under the RPC has a special 1-year prescription rule.
- Cyberlibel appears in a special law (RA 10175), and special-law offenses are often measured under Act No. 3326 (the general prescription statute for special laws) or analyzed via the general penalty-based approach.
As a result, you will see competing positions, including:
- 1 year (treat cyberlibel as “libel or similar offense” for purposes of the RPC’s special 1-year rule), versus
- A longer period (often argued under special-law prescription rules), sometimes landing at many years because the maximum penalty is high.
Practical risk-management approach: Treat one (1) year as the working deadline unless you have a clear, controlling ruling for your fact pattern—because if a court adopts the shorter view, a late filing can be fatal.
C. Single publication vs. republication (online)
Prescription issues become complicated online because content can remain accessible indefinitely.
Common practical distinctions:
- Continuing accessibility of the same post is often argued as a single publication (the clock runs from first posting/publication/discovery).
- Republication (reposting the same content anew, substantially editing and reposting, or newly broadcasting it again) can be argued as a new publication, potentially restarting the clock for that new act.
- Shares/reposts by others may expose the sharer/reposter to their own liability (depending on what they did and said), with their own timeline.
8) Venue and jurisdiction can affect prescription in real life
Defamation cases are procedural “minefields,” and where you file matters because a filing in an improper venue or a forum without authority can create prescription headaches.
Libel (traditional)
Libel has specialized venue rules (e.g., tied to where the material was printed and first published and/or where the offended party resided at the time). Wrong-venue filings can lead to dismissal or delays that consume the short 1-year window.
Cyberlibel
Cybercrime cases are typically handled by designated RTC branches (“cybercrime courts”), and venue rules can be broader because elements can occur in multiple places (posting, access, residence, server/device location). Still, misfiling can burn time.
Bottom line: With short prescriptive periods, procedural errors can be outcome-determinative.
9) Katarungang Pambarangay (Barangay conciliation) and prescription
Some minor disputes are subject to mandatory barangay conciliation before filing in court, and the law recognizes a limited effect on time periods while proceedings are pending.
In practice, many defamation complaints (especially libel and serious slander) fall outside the barangay system because of the penalty level and jurisdictional exclusions, but borderline cases can arise. Where barangay conciliation applies, the safest approach is to treat it as time-sensitive and not rely on it as a comfortable buffer against prescription.
10) Civil timelines that often accompany defamation
A. Independent civil action for defamation (Civil Code concept)
Philippine law recognizes an independent civil action for damages for defamation (separate from the criminal case). A commonly applied prescriptive period for civil actions grounded on injury to rights is four (4) years, counted from when the cause of action accrues (often tied to publication and/or discovery).
B. Civil liability tied to the criminal case vs independent civil action
- If you pursue the criminal case, civil liability may be pursued alongside it (subject to procedural rules).
- If the criminal action prescribes, an independent civil action may still be considered, but it has its own prescriptive period and evidentiary standards.
Because the criminal prescriptive periods for defamation are short (6 months/1 year), parties often confront civil timelines after criminal time-bars become an issue.
11) Timeline examples (how deadlines commonly get computed)
Example 1 — Libel in print
- Article first published: March 1, 2026
- Offended party discovers it: March 10, 2026 Potential deadlines you should assume:
- Conservative (publication-based): on or before March 1, 2027
- Discovery-based argument: on or before March 10, 2027 Practical takeaway: File well before the earlier date when possible.
Example 2 — Oral defamation
- Defamatory words said in a meeting and heard by others: February 1, 2026 Deadline (6 months): on or before August 1, 2026
Example 3 — Online post (cyberlibel risk-managed as 1 year)
- Post made: January 1, 2026
- Victim learns of it: January 15, 2026 Risk-managed deadline: on or before January 1, 2027 (conservative), or earlier.
12) Core takeaways
- Libel (including broadcast/media libel): 1 year to file.
- Oral defamation and slander by deed: 6 months to file.
- The prescriptive period generally runs from discovery, but defamation cases often hinge on provable publication dates.
- Filing the proper complaint is what reliably interrupts prescription—informal steps usually do not.
- Cyberlibel prescription is a contested area in practice; the safest approach is to treat it as subject to a 1-year deadline unless clearly established otherwise in the applicable forum.