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Staying silent on purpose is deceit; and if both deceived, nobody indemnifies anybody

Last reviewed: September 12, 2026VerifiedPoder Judicial

In short

Article 292 defines dolo grave this way: the intentional act or omission by which a party or a third person induces another party to execute a juridical act they would not otherwise have made. Two words there decide many cases. The first is omission: no lie is needed, deliberately staying silent about what would have changed the decision is enough. The second is third person: the definition itself reaches deceit by someone who is not the other party to the contract. The second paragraph covers the case where the deceit did not move the signature after all: if the act or omission does not provoke the execution of the juridical act, the injured party may claim the damages they suffer. Article 293 deals with the deceiving third person: when the deceit comes from a third party and is known by one of the parties, the third party and the knowing party are solidarily liable for the damages caused. That article is worth reading slowly, because it allocates damages and nothing else; it does not say what happens to the contract when the other party knew nothing, and this guide does not invent it. Article 294 closes with two short rules. The first: incidental deceit does not invalidate the juridical act, but its author must indemnify the damage caused. The second is the surprising one: reciprocal deceit neither invalidates the act nor obliges anyone to compensate. If both deceived, the contract stands and neither owes the other anything for it. And a warning about the text: the Code defines dolo grave, but uses dolo incidental and dolo recíproco without defining either.

External link

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What is it?

They are Articles 292, 293 and 294 of the Civil Code of 2020: what dolo grave is, what happens when a third party deceives, and when deceit only gives a right to damages.

Who can do it?

Anyone who signed a contract because they were lied to, deliberately kept in the dark, or induced to believe something false.

Requirements

Documents you need

Cost

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Step by step

  1. Step 1: Count what they kept quiet too

    Article 292: dolo grave may be an intentional act or omission. No spoken lie is needed.

  2. Step 2: Ask whether it made you sign

    The same article requires it induced you to execute an act you would not otherwise have made.

  3. Step 3: If it did not make you sign, damages remain

    Second paragraph: if it does not provoke the execution, the injured party may claim the damages suffered.

  4. Step 4: See who deceived

    Article 292’s definition includes a third person, not only the other party to the contract.

  5. Step 5: And whether the other party knew

    Article 293: the third party and the party who knew are solidarily liable for the damages caused.

  6. Step 6: Incidental deceit only yields money

    Article 294: it does not invalidate the act, but its author must indemnify the damage caused.

  7. Step 7: If both deceived, there is nothing

    Same article: reciprocal deceit neither invalidates the act nor obliges anyone to compensate.

Where to do it

These three articles describe no procedure before any agency. The Code defines dolo grave here, but uses incidental deceit and reciprocal deceit without defining either, and this guide does not define them for it. Nor does it say what silence a party is obliged to break, or when staying quiet stops being lawful. Article 293 allocates damages and nothing more: it does not say whether the act may be voided when the deceit came from a third party the other side did not know about, and that question is left open here. And it does not say who may sue, before which forum, with what pleading, at what fee or within what deadline. None of those gaps is filled here.

How long it takes

Check the current processing time with the official agency.

What to do if something goes wrong

What most changes a deceit case is understanding that the Code does not require a lie. Article 292 puts act and omission on the same footing, with one condition: that they be intentional. Having kept quiet about a defect, a debt, a lawsuit or a condition that would have changed your decision fits the definition as written. The second point is that the deceit must have made you sign: the definition says it induces you to execute an act you would not otherwise have made. If the deceit existed but you would have signed anyway, the second paragraph leaves you the damages claim, which is not nothing, but it does not undo the contract. The third point is who deceived. The definition includes a third person, and there Article 293 makes an allocation worth reading carefully: if one of the parties knew about the third party’s deceit, both are solidarily liable for the damages. That article speaks of damages and not of the contract’s fate, so what happens when the other party knew nothing is a question the Code does not answer in this section; it is named here and not resolved. And then there are Article 294’s two rules, which close doors. Incidental deceit invalidates nothing, it only obliges indemnity; and reciprocal deceit, when both deceived, neither invalidates nor obliges compensation. That is worth knowing before suing, because if you concealed something too, the article leaves both parties without a remedy. That the Code defines neither incidental nor reciprocal deceit is a shortcoming of the text, not a detail this guide can fill in. MiPRFácil does not represent anyone in court and gives no legal advice.

Common mistakes

  • Believing a spoken lie is needed: Article 292 also counts intentional omission.
  • Forgetting the deceit must have induced you to execute the act.
  • Dropping the case because a third party deceived: Article 292’s definition includes them.
  • Reading Article 293 as if it decided the contract’s fate: it allocates damages and nothing more.
  • Expecting annulment for incidental deceit: Article 294 says it does not invalidate the act.
  • Suing when you concealed something too: reciprocal deceit neither invalidates nor obliges compensation.
  • Looking in the Code for a definition of incidental or reciprocal deceit: it uses both terms undefined.
  • Giving up because the deceit did not make you sign: Article 292’s second paragraph leaves the damages.

Frequently asked questions

Is deliberately concealing something deceit?

Article 292 defines dolo grave as the intentional act or omission inducing execution. Omission counts.

A third party deceived me, not the other side. Does it count?

Article 292’s definition includes a third person. Article 293 adds that if a party knew, both are solidarily liable for damages.

If both of us deceived, what happens?

Article 294 says reciprocal deceit neither invalidates the act nor obliges anyone to compensate.

The deceit did not make me sign, but it cost me money.

Article 292’s second paragraph lets the injured party claim the damages they suffer.

Official sources

These are the government pages this guide is based on.

Last verified

September 12, 2026

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