Fraud in Contracts: Dolo Causante vs Dolo Incidente (PH)

Short answer: Under the Philippine Civil Code, fraud in a contract comes in two kinds. Dolo causante (causal fraud) is a serious deception without which you would not have signed at all; it makes the contract voidable, so you can sue to annul it and claim damages. Dolo incidente (incidental fraud) only affected a detail of a deal you would have made anyway; the contract stands, but the person who used it must pay damages (Articles 1338 and 1344).

The difference decides your whole strategy: whether you can get out of the contract and get your money back, or whether you stay bound and can only sue for compensation. This guide explains the test courts use, what you must prove, the four-year deadline, and the practical steps for both the deceived party and the party accused of fraud.

Fraud in contracts at a glance

Question	Practical answer
Governing rule	Fraud through insidious words or machinations that induced the contract makes it voidable (Arts. 1330, 1338, 1390).
Main exception	Incidental fraud, trade exaggeration, mere opinion and good-faith misstatements do not annul the contract (Arts. 1340–1344).
What you must prove	The deception, that it caused your consent, and that it was serious, by clear and convincing evidence.
Deadline	Four years from discovery of the fraud to sue for annulment (Art. 1391).
Where it ends up	Written demand, barangay conciliation if it applies, then court.
First step	Stop acts that could ratify the contract and gather proof of what you were told.

What counts as fraud in a contract?

Article 1338 defines fraud as the use of “insidious words or machinations” by one contracting party that induce the other to enter into a contract which, without them, he would not have agreed to. The deception must come from a party to the contract and must exist before or at the moment the contract is perfected. Fraud committed later, while the contract is being performed, is a breach issue under Article 1170, not a vice of consent.

The Civil Code also marks the edges of the concept:

Concealment can be fraud. Failing to disclose facts when there is a duty to reveal them, as when the parties are bound by confidential relations, is fraud (Art. 1339).
Sales talk is not. The usual exaggerations in trade are not in themselves fraudulent when the other party had an opportunity to know the facts (Art. 1340).
Opinions are not, unless from an expert. A mere opinion is not fraud, unless it came from an expert and the other party relied on that special knowledge (Art. 1341).
Third-party lies usually do not count. Misrepresentation by a third person does not vitiate consent unless it created a substantial mistake shared by both parties (Art. 1342).
Honest mistakes are not fraud. A misrepresentation made in good faith is not fraudulent, although it may amount to mistake (Art. 1343).

If the contract was in a language you do not understand, or you cannot read, and you allege fraud or mistake, the party enforcing the contract must show the terms were fully explained to you (Art. 1332). For the other vices of consent — mistake, violence, intimidation and undue influence — see how a contract is formed and when consent is defective.

Dolo causante vs dolo incidente: what is the difference?

The Supreme Court summed up the distinction in Geraldez v. Court of Appeals (G.R. No. 108253, 23 February 1994): causal fraud consists of “deceptions or misrepresentations of a serious character employed by one party and without which the other party would not have entered into the contract,” while incidental fraud is “not serious in character and without which the other party would still have entered into the contract.” Dolo causante is the essential cause of the consent; dolo incidente refers only to “some particular or accident of the obligations.”

Point	Dolo causante (causal fraud)	Dolo incidente (incidental fraud)
Civil Code basis	Arts. 1338 and 1344, first paragraph	Art. 1344, second paragraph
Role of the deceit	It is the reason you consented at all	It affected a term or detail, not the decision to contract
Seriousness	Serious enough to mislead an ordinarily prudent person	Not serious enough to annul
Effect on contract	Voidable: valid until a court annuls it (Art. 1390)	Contract remains valid and binding
Main remedy	Annulment, mutual restitution and damages	Damages only
Standard of proof	Clear and convincing evidence	Clear and convincing evidence
Deadline	Four years from discovery to annul (Art. 1391)	Follows the prescriptive period of the damages claim

Both kinds must be proven by clear and convincing evidence. In Tankeh v. Development Bank of the Philippines (G.R. No. 171428, 11 November 2013), the Court said that neither law nor jurisprudence distinguishes between the two on the standard of proof: “both dolo incidente and dolo causante must be proven by clear and convincing evidence.” A mere preponderance of evidence is not enough.

How do courts decide which kind of fraud it was?

The decisive question is causation: would you still have signed if you had known the truth? If yes, the fraud is at most incidental. Courts look at the whole record and at the personal circumstances of the person deceived, including age, education and business experience.

Example 1: a false location in an advertisement

In ECE Realty and Development Inc. v. Mandap (G.R. No. 196182, 1 September 2014), a developer advertised a condominium as located in Makati City when it was actually in Pasay City. The Court found a false representation and condemned it, but held it was not causal fraud: the buyer signed a contract to sell that stated the Pasay City location, kept paying, and waited more than two years before demanding a refund. She had not shown that the Makati location was the moving cause of her purchase. The Court added that even if it were causal fraud, signing after learning the true location was an implied ratification.

Example 2: a misrepresented franchise in a partnership deal

Tankeh describes Woodhouse v. Halili as a classic example of dolo incidente. Woodhouse represented that he held an exclusive bottling franchise, which he no longer had when the partnership agreement was signed. The Court found that his main undertaking was to secure the franchise for the partnership, so the misrepresentation was not the causal consideration or principal inducement for the agreement and could not be a ground to annul it.

Example 3: incidental fraud still costs money

In Tankeh itself, the Court did not annul the promissory note, but found dolo incidente by the company president who induced the petitioner to sign and ordered him to pay ₱500,000 in moral damages and ₱200,000 in exemplary damages. In Geraldez, a travel agency that promised a European tour manager and first-class hotels but did not deliver was held liable for moral and exemplary damages and attorney’s fees, whether its deception was causal or incidental. These amounts reflect those cases’ facts; they are not standard rates.

Two more rules matter. Fraud used by both parties cannot be a ground for annulment (Art. 1344). And the party who employed the fraud cannot sue to annul the contract on that ground (Art. 1397).

What remedies do you have?

If the fraud was causal: annulment and damages

Action for annulment. A voidable contract binds the parties until a court annuls it (Art. 1390). You file an action; you cannot simply declare the contract void on your own.
Mutual restitution. Once annulled, both sides return what they received, with fruits, and the price with interest (Art. 1398). While one side refuses to return what the decree requires, the other cannot be compelled to perform (Art. 1402).
Damages. Responsibility for fraud is demandable in all obligations, and a waiver of future fraud is void (Art. 1171). A party who acted with fraud answers for all damages reasonably attributable to the non-performance, not only foreseeable ones (Art. 2201). Moral damages may be awarded for breaches of contract where the defendant acted fraudulently or in bad faith (Art. 2220), and exemplary damages where the defendant acted in a wanton, fraudulent, reckless, oppressive or malevolent manner (Art. 2232). See how damages are calculated.

If the fraud was incidental: damages only

Incidental fraud “only obliges the person employing it to pay damages” (Art. 1344). You remain bound by the contract and must still perform your side, but you can claim compensation for the loss the deception caused, plus moral and exemplary damages where the conduct justifies them.

If the paper does not match what you agreed: reformation

Sometimes the parties did reach a real agreement, but fraud caused the written instrument to state something different. The remedy then is reformation of the instrument, so it expresses the true agreement. If the fraud prevented any meeting of the minds, the remedy is annulment instead (Art. 1359).

What can defeat a fraud claim?

Defense	How it works	Basis
Not causal	The deceived party would have contracted anyway; at most damages	Art. 1344; ECE Realty
Insufficient proof	Allegations without clear and convincing evidence fail	Tankeh; ECE Realty
Ratification	Acting on the contract after learning the truth waives annulment	Arts. 1392, 1393, 1396
Prescription	Annulment filed more than four years after discovery is barred	Art. 1391
Loss of the thing	Annulment ends if the thing is lost through the claimant’s fraud or fault	Art. 1401
Not fraud at all	Trade talk, opinion, third-party or good-faith misstatement	Arts. 1340–1343

Ratification is the trap most people fall into. Article 1393 treats it as tacit when, knowing the reason the contract is voidable and after that reason has ceased, you do an act that necessarily implies an intent to waive your right. In ECE Realty, the Court noted that implied ratification can take the form of silence or acquiescence, acts showing approval of the contract, or acceptance and retention of its benefits. Ratification cleanses the contract of its defects from the start (Art. 1396). A notarized contract also carries a presumption of regularity that only clear and convincing proof can overcome.

Is fraud in a contract also a crime?

It can be. Deceit that causes someone to part with money or property may also be prosecuted criminally, which is a separate question for the prosecutor. On the civil side, Article 33 allows a civil action for damages in cases of fraud that is “entirely separate and distinct from the criminal action,” proceeds independently of the criminal case, and requires only a preponderance of evidence. That lower standard applies to the Article 33 damages action; the clear-and-convincing standard discussed above applies when fraud is used to annul a contract or to establish dolo in a contract case. A lawyer or PAO can tell you whether to pursue one route, the other, or both.

Your options and what to do next

If you were deceived

Pin down the deception. Write down exactly what was said or shown, by whom and when, and why it made you sign. Ask yourself honestly whether you would have signed had you known the truth: that answer points to annulment or to damages only.
Stop acts that could ratify. Once you discover the fraud, avoid moves that imply you accept the contract, such as continuing to pay without objection, signing amendments or using the property as owner. If you must keep paying to avoid default, say in writing that you pay under protest and reserve your right to annul.
Note your discovery date. The four-year annulment period runs from discovery of the fraud (Art. 1391). See prescription of contract actions.
Send a written demand. State the fraud, what you want (annulment and refund, or compensation) and a deadline. A written demand also helps interrupt prescription (Art. 1155). See our guide to demand letters.
Go through barangay conciliation if it applies. Most disputes between individuals living in the same city or municipality must first be brought before the barangay; disputes involving a corporation usually are not. Read barangay conciliation and the certificate to file action.
File the right case. An action to annul a contract is usually treated as one incapable of pecuniary estimation, which falls under the Regional Trial Court (BP 129, Sec. 19(1)). A claim for damages only is filed in the first-level court or the RTC depending on the amount: first-level courts handle demands up to ₱2,000,000, exclusive of interest, damages, fees and costs (RA 11576). For a pure money claim, compare small claims and a regular civil action.
Get legal help. If you cannot afford a lawyer, the Public Attorney’s Office (PAO) may assist qualified clients.

If you are accused of fraud

Gather proof that the true facts were disclosed: the signed contract, annexes, emails, briefing notes and receipts showing what the other party knew.
Check whether the other party ratified the contract after learning the facts, or waited more than four years after discovery.
Identify whether the claim is really about a detail of the deal (incidental) rather than the reason for signing.
Respond to the demand in writing, calmly and on the record; consider a negotiated adjustment if a representation was in fact inaccurate.

Documents to bring to a lawyer or PAO

The contract, its annexes and any notarized copies
Advertisements, brochures, listings, screenshots and chat messages showing the representations
Proof of payments and of anything you delivered or received
Proof of when and how you discovered the truth (inspection reports, certifications, titles, letters)
Names of witnesses to the negotiations
Your demand letter and the other side’s reply, if any

Your first action today: write a one-page timeline of what you were told, what you signed, when you discovered the truth and every payment since — then stop any step that could be read as accepting the contract.

Key takeaways

Causal fraud (dolo causante) is the deception that made you consent; it makes the contract voidable (Arts. 1338, 1390).
Incidental fraud (dolo incidente) only concerns a detail; the contract stands and the deceiver pays damages (Art. 1344).
Both kinds must be proven by clear and convincing evidence (Tankeh v. DBP).
Sales talk, opinions, third-party lies and honest mistakes are generally not fraud (Arts. 1340–1343).
Sue for annulment within four years from discovery, and avoid acts that ratify the contract (Arts. 1391–1393).
An independent civil action for damages based on fraud is also available under Article 33.

Frequently asked questions

Can I cancel a contract on my own because I was tricked?

No. A contract vitiated by fraud is voidable, which means it is binding until a court annuls it (Art. 1390). You can refuse to proceed and send a demand, but only a court decision annuls the contract and orders restitution. See also whether you can cancel a contract after signing.

How long do I have to file a case for fraud in a contract?

The action to annul a contract for fraud must be brought within four years from the discovery of the fraud (Art. 1391). A claim for damages follows the prescriptive period that applies to that claim, so act early and get advice on the exact period for your facts.

Is a false advertisement automatically fraud that annuls the contract?

Not automatically. In ECE Realty v. Mandap, a false location in a developer’s advertisement was not causal fraud because the buyer signed a contract stating the true location and kept paying. You must show the false statement was the reason you agreed, and that you did not ratify the contract after learning the truth.

Can I get damages even if the contract is not annulled?

Yes. If the fraud was incidental, Article 1344 makes the person who used it liable for damages even though the contract remains valid. Moral and exemplary damages may also be awarded where the fraud or bad faith justifies them (Arts. 2220 and 2232).

Related guides

Sources

Sources rechecked as of: 22 October 2026

This article is general legal information, not legal advice. For advice on your specific situation, consult a lawyer or the Public Attorney’s Office.

CivilLaw.PH

Official sources we cite