When does the four-year prescriptive period to annul a contract for fraud or mistake begin to run?

Different starting points for different defects

Article 1391 does not use a single starting point for all annulment actions. It breaks the cases down by the type of defect that made the contract voidable. For intimidation, violence, or undue influence, the four-year period runs from when the coercion or undue pressure stops — from the time the victim is finally free to act without that force operating against them. For mistake or fraud, the period runs from discovery. For contracts entered into by minors or incapacitated persons, it runs from the time guardianship ceases. Getting the starting point right is critical: miss the deadline and the right to annul is gone.

Fraud and mistake: discovery, not the contract date

The discovery rule for fraud and mistake is the one most people misapply. A person who was deceived into signing a contract may not immediately realise what happened. The law recognises this: the four-year period does not start from the date of the contract itself but from when the victim discovers — actually finds out — that they were defrauded or that a mistake occurred. What counts as 'discovery' is a factual question. Wilful blindness to obvious red flags will not freeze the clock indefinitely. But genuine ignorance, without fault, can push the starting point forward, sometimes years after the contract was executed.

Intimidation and undue influence: freedom from pressure

The rule for intimidation, violence, and undue influence is grounded in the same logic but points to a different event: when does the victim become free? A person who signed under threat cannot meaningfully assert their rights while the threat continues. The law therefore waits. The four-year window opens only when the coercive situation ends — when the intimidator no longer has power over the victim, when the violence stops, when the relationship of undue influence is broken. Until that moment, the prescriptive period does not move.

Why the deadline matters and what happens when it passes

Article 1391's four-year period is prescriptive: once it runs, the right to bring an annulment action is extinguished. A contract that is merely voidable — not void — remains valid until successfully annulled. If prescription runs, the contract cannot be challenged and the other party can enforce it. This is very different from a void contract, which produces no legal effect from the start. If you believe you entered a contract through fraud, mistake, or under duress, getting legal advice promptly — and establishing exactly when you discovered or became free — is the first step to protecting your rights under this provision.

Cases citing this provision

These Supreme Court decisions cite the provision above. We list them so you can read them yourself; the summaries of what each decided are not ours to give.

• First Philippine Holding Corporation vs. Trans Middle East (Phils.) Equities Inc, G.R. No. 179505, December 4, 2009 — read the decision on LawPhil →
• Heirs of Benigno Sumagang, represented by Jesus S. Abellanosa, et al. vs. Aznar Enterprises, G.R. No. 214315, August 14, 2019 — read the decision on LawPhil →
• Metropolitan Fabrics, Inc., et al. vs Prosperity Credit Resources, Inc. et al, G.R. No. 154390, March 17, 2014 — read the decision on LawPhil →
• Maria Cabotaje, et al. vs. Spouses Sotero Pudunan, et al, G.R. No. 134712, August 13, 2004 — read the decision on LawPhil →

Related provisions

• Civil Code, Article 1391 — Four Years to Annul