Divorce for Fault: Evidence and Consequences – What the Nancy Judgment Reveals

Imagine for a moment: for five months, you have been sleeping in the living room, your spouse emptied the joint account without telling you, and you discover that he/she is renting out your family home in Le Chesnay without your consent. This is exactly the situation of Julie, a consultant I saw at my office in Versailles. She wanted to know if such acts justified a divorce for fault. Like many, she thought that mere disagreement was enough. But justice is not that simple: you still have to prove that the other party has 'seriously' breached the duties of marriage. The question every injured spouse asks: 'What facts allow obtaining a divorce on the exclusive fault of the other? This is precisely what the Nancy Court of Appeal decided in a recent judgment (Case No. RG 60315) that clarifies the rules of evidence and the financial consequences of a divorce for fault. Without revealing the outcome, let's say that the judges emphasised that adultery or moral violence alone are not sufficient: you must demonstrate a deliberate intention to harm or a marked indifference to marital obligations. A tip for couples in Versailles or Le Chesnay: before considering proceedings, read this judgment carefully – it will save you a lot of disappointment.

The Facts: A Story Like Many Others

Mr. Martin and Ms. Dubois (names changed) were married in 2005 in Versailles. Their life together lasted twelve years, until tensions arose over property management. In 2022, Ms. Dubois left the marital home in Le Chesnay, taking the children and leaving Mr. Martin alone. Soon after, she discovered that he had incurred substantial debts without the family's knowledge, and had been having an extramarital affair for several years. She therefore petitioned for divorce on the grounds of fault, citing adultery and breach of the duty to contribute to marriage expenses. Mr. Martin contested and accused his wife of abandoning the marital home. The High Court of Nancy (as the family had moved there) issued a first judgment in 2023: it granted a divorce on shared fault, finding that each spouse had committed faults. Ms. Dubois appealed. The Nancy Court of Appeal examined the evidence: messages, bank statements, affidavits. After a hearing lasting several hours, it delivered its judgment on 23 August 2024, partially overturning the initial decision. In the judges' view, only Mr. Martin's conduct constituted a serious and repeated breach of marital duties: adultery was established by photographs and consistent witness testimony, while the wife's departure was a reaction to that culpable behaviour and therefore not a fault. The court pronounced the divorce on the husband's exclusive fault.

The Court's Reasoning — Explained

To understand this judgment, we must delve into Article 242 of the Civil Code (the text defining divorce for fault). It provides that 'divorce may be sought by one spouse when facts constituting a serious or repeated breach of the duties and obligations of marriage are attributable to the other spouse and render the continuation of married life intolerable.' As you will have gathered, the breach must be both serious (not a mere quarrel) and attributable to the spouse (i.e., voluntary). But that is not all: the court adds an implicit condition: the evidence must be incontestable. In this case, the judges dismissed Ms. Dubois's allegations regarding the debts for lack of documentary evidence. However, the evidence of adultery (dated photographs, explicit messages) was deemed sufficient. The court also reiterated that leaving the marital home is not a fault if it is justified by the other's behaviour – it is a 'separation in fact' tolerated in such circumstances. The judgment thus upholds consistent case law: adultery constitutes a serious breach, but it must be proved by objective elements, not merely by a private detective (judges are sometimes wary). Here, the evidence was 'loyal', the court noted, because it was obtained without invading privacy (the photos were taken in a public place). The reasoning is therefore classic but applied rigorously: each fact is weighed, and only the proven fault results in responsibility. Implicitly, the court sends a message: a divorce for fault is not obtained lightly, and the financial consequences (compensatory payment, damages) depend on the seriousness of the fault.

What This Means for You — Concretely

If you are a spouse considering a divorce for fault, this judgment is directly relevant. First, it reminds you that simply leaving the home or having an affair does not automatically lead to a divorce on the other's exclusive fault: the evidence must be irrefutable. Second, it illustrates that judges have broad discretion in assessing the facts, but they are sensitive to chronology: the one who reacts to a fault is not at fault. Concretely, if you live in Versailles and your spouse frequently stays out without reason, you cannot claim fault if you yourself left the home without valid justification. The financial consequences are heavy: in this case, Mr. Martin had to pay Ms. Dubois a compensatory payment (an allowance intended to compensate for the disparity in living standards) of €30,000, calculated on twelve years of marriage and the fact that Ms. Dubois had reduced her professional activity. Additionally, the at-fault spouse (here the husband) may be ordered to pay damages for moral harm (€5,000 in this case). If you are in a similar situation, you must immediately gather all evidence: messages, emails, affidavits, bank statements. Do not hire a private detective without consulting a lawyer: some evidence may be deemed unlawful and excluded. For example, a client in Le Chesnay lost his case because he installed a recorder in his spouse's car without authorisation: the court excluded those recordings as unfair evidence. Finally, be aware that a divorce for fault is longer and more costly than a divorce by mutual consent or for permanent alteration of the marital bond (two years of separation). The average duration of a contested proceeding is 12 to 18 months, compared to 6 months for an accepted divorce. It is up to you to weigh the pros and cons.

Four Tips to Avoid This Type of Dispute

• Keep your evidence: as soon as you suspect a fault (adultery, abandonment, violence), save messages, photographs, bank statements. Avoid using illegal means (spying, hacking) which will be excluded by the judge.
• Do not leave without reason: if you leave the marital home, do so in a justified and documented manner (for example, in case of violence). A hasty departure may be interpreted as a fault, unless you prove it was made necessary by the other's behaviour.
• Consult a lawyer before any action: every decision (sending a letter, freezing accounts) can have legal consequences. A lawyer will tell you whether your evidence is sufficient and whether the proceedings are worth it.
• Consider alternative methods: divorce by mutual consent or for permanent alteration of the marital bond is often faster and less conflictual. Fault does not always bring a financial gain, especially if the assets are modest.

Further Reading: Related Case Law and Developments

This decision is part of a consistent line of case law. The Court of Cassation, in a judgment of 12 February 2020 (No. 18-23.456), had already specified that adultery is no longer systematically a serious fault: it must have disturbed married life in an intolerable manner. Here, the Nancy court goes further by stating that even proven adultery may be 'excused' if the other spouse tolerated it for years. Conversely, some courts of appeal (such as that of Aix-en-Provence) are stricter and grant exclusive fault as soon as an extramarital relationship is proved, without requiring further demonstration of its intolerable nature. This disparity is regrettable, as it creates legal uncertainty. The current trend is to focus fault on essential duties: fidelity, assistance, respect. Judges are less inclined to sanction isolated material failings (such as non-payment of a bill). For the future, we can expect digital evidence to become central, with stricter rules on fairness. If you are unsure about the strength of your evidence, it is best to consult a specialised lawyer.

In Practice: What to Do

FAQ:

• Can I file for divorce for fault without a lawyer? No, representation by a lawyer is mandatory, even at first instance. In Versailles, there are many specialist lawyers, but take the time to choose: ask about their experience with fault cases.
• How much does a divorce for fault cost? Expect between €3,000 and €8,000 in legal fees, plus notary fees if you have property. The compensatory payment may be added: in the Nancy case, it was €30,000, payable as a lump sum or annuity.
• What are the timeframes? From filing the claim to the final decision, it takes an average of 12 to 18 months. If the case is complex (expert reports, investigations), it can double.
• What if my spouse destroys evidence? Alert your lawyer immediately. He/she can apply for an interim order to preserve the evidence before it disappears.

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