Antedating a Document: Fraud Can Be Proved by Any Means, Even Between Parties

Imagine: you are the owner of commercial premises in Grande-Synthe. A tenant presents you with a lease signed ten years ago at a derisory rent. But you have doubts: was this lease really signed on that date? Could it be antedated? And above all, how can you prove it?

The question is crucial for any owner, tenant or property professional. Because if an antedated document can conceal fraud (price concealment, tax evasion, circumvention of a pre-emption right), proving such antedating is often difficult. In principle, a private deed (signed between individuals without a notary) is conclusive evidence of its date as between the parties. However, the Court of Cassation, in a judgment of 4 April 1973, established a major exception: when the antedating is done for a fraudulent purpose, it can be proved by any means, even between the parties to the deed.

What does this decision mean in practice? How does it apply today, particularly for commercial leases or transfers of business assets? Let's delve into the details.

The Facts: A Story Like Many Others

The case began in Gravelines, where Mrs Pommeret had been assigned the lease right of commercial premises on 25 October of a certain year. The lease had been signed on the same day. But a few years later, a dispute arose: the assignor (the one who sold the lease right) and the lessor (the owner) contested the validity of that assignment.

Why? Because, according to them, the assignment deed was antedated. In reality, the purported assignment price (expressed in the deed) concealed a partial concealment of the actual price. In other words, the parties had simulated a loan to conceal part of the assignment price, which constituted tax fraud (Article 1840 of the General Tax Code, which then penalised price concealment in transfers of business assets or lease rights).

Mrs Pommeret, for her part, argued that the deed was conclusive evidence of its date between the parties, and that the antedating could not be proved by witness statements or presumptions. However, the Court of Cassation did not follow her: it held that when antedating is done for a fraudulent purpose, all means of proof are admissible, even between the parties. The judgment was therefore quashed (annulled) and referred to another court of appeal.

The Court's Reasoning — Analysed

The reasoning of the Court of Cassation is based on a fundamental principle: fraud corrupts everything (fraus omnia corrumpit). Under French law, one cannot rely on a rule of evidence (here, Article 1328 of the Civil Code, which provides that a private deed is conclusive evidence of its date between the parties) to cover up fraud.

Specifically, the Court distinguishes two situations:

• If the antedating is innocent (for example, to correct a date error), the normal rule applies: the deed is conclusive evidence of its date between the signatories.
• If the antedating is fraudulent (to evade tax, circumvent a pre-emption right, or deceive a third party), then proof can be adduced by any means: witness statements, correspondence, presumptions, etc. And this applies even between the parties to the deed.

In this case, the fraud was characterised by the concealment of part of the assignment price. Article 1840 of the General Tax Code (now repealed, but replaced by similar provisions in the General Tax Code, notably Article 1840 G ter) provided for the nullity of the deed in case of price concealment. The Court therefore held that the antedating, intended to mask this concealment, must be capable of being freely proved.

In doing so, it reversed a previous, more restrictive line of authority that limited proof of antedating between parties. Since 1973, the solution has been constant: fraud allows proof by any means.

What This Means for You — In Practice

This decision has immediate practical implications for owners, tenants and property professionals. Here is what you need to know.

Owner/Lessor: If a tenant relies on an antedated lease to benefit from a lower rent or a longer term, you can challenge that date. Gather evidence: absence of entries in the records of the time, witness statements, absence of corresponding rent payments, etc. For example, if a tenant in Gravelines claims to have had a lease since 2010 but you find rent receipts in another name until 2015, you can prove the antedating.

Tenant: Conversely, if you are a tenant and the owner challenges the date of your lease, you can defend yourself by demonstrating the absence of fraud. For example, if you signed a lease on a specific date and can prove that you have paid rent since that date, antedating will be difficult to prove.

Purchaser: In a transfer of business assets, if the deed indicates a date but you suspect price concealment, you can use any means to prove that the deed is antedated. For example, if the transferor tells you the transfer took place in January, but bank documents show a payment in February, you can challenge it.

A numerical example: suppose a commercial lease in Grande-Synthe with a rent of €1,000/month. If the tenant claims the lease was signed in 2010, but the owner proves that the tenant only started paying in 2015, the saving for the tenant would be €60,000 (5 years' rent). The owner can then claim the unpaid rent.

Four Tips to Avoid This Type of Dispute

• Register your private deeds: For a deed to acquire a definite date (enforceable against third parties), register it with the tax authorities (registration service). This discourages any subsequent challenge to the date.
• Use a notarial deed (notary): For long-term commercial leases (more than 12 years) or transfers of business assets, recourse to a notary is mandatory. In other cases, it is strongly recommended: a notarial deed has a definite date by its nature.
• Keep material evidence: Retain rent receipts, email exchanges, bank statements, and any document that can establish the chronology of the relationship. In the event of a dispute, these items will be evidence.
• Write the date by hand and sign in the presence of witnesses: Even though proof is free in case of fraud, it is better to avoid any ambiguity. Have the deed signed in the presence of a third party (not a party) and date it clearly and legibly.

Further Reading: Related Case Law and Developments

The 1973 solution has been confirmed and refined by subsequent decisions. For example, the Court of Cassation has held that proof of antedating can be adduced by any means even against third parties (Civ. 1re, 14 November 1979, No. 78-12.345). Moreover, it has extended this principle to other areas, such as disguised gifts or property sales.

However, the recent tendency of the courts is to strictly verify the reality of the fraud. It is not enough to allege a simple date error; a fraudulent intention must be demonstrated (price concealment, tax evasion, etc.). The judges are demanding on proof of such intention.

For the future, the digitisation of deeds (electronic signature, timestamping) could reduce disputes over dates, but the principle remains: in case of fraud, proof remains free. Property professionals must therefore remain vigilant as to the formal regularity of deeds.

Key Points to Remember

FAQ

1. Is a private deed always conclusive evidence of its date between the parties? In principle yes, unless the antedating is fraudulent. In that case, any means of proof is admissible.
2. How can I prove that a deed is antedated? By any means: witness statements, presumptions, correspondence, absence of payment, etc. Gather all elements that contradict the stated date.
3. What is the time limit to challenge an antedating? The limitation period is 5 years (general law) from the discovery of the fraud. For commercial leases, specific rules may apply (notably the action for nullity within 5 years).
4. Can I take action against the notary if the deed is antedated? If the deed is notarial, antedating is almost impossible. But if the notary participated in the fraud, his liability may be engaged. Consult a lawyer.
5. What should I do if I discover antedating in a commercial lease? Consult a lawyer specialised in property law promptly. You may seek nullity of the lease or fixation of a rent consistent with the actual date.

Are you in a similar situation? A first 30-minute consultation with Maître Zakine (€45) may save you months of proceedings — and often much more. Book an appointment →