Is cheating a crime in France?

Is Cheating a Crime in France?

In France, the line between personal betrayal and legal wrongdoing has shifted over time. While many might assume adultery is a criminal act, the reality is more nuanced. Under French law, cheating is not a crime in the traditional sense—no one will go to jail for it. However, it still carries legal weight, especially in the context of marriage.

Article 212 of the French Civil Code establishes that spouses owe each other mutual fidelity, respect, and assistance. Adultery, therefore, is considered a breach of this duty. But since the major divorce law reforms in the 1970s—particularly the shift toward no-fault divorce—adultery has ceased to be a criminal offence. This means you won’t face prosecution or penalties from the state simply for being unfaithful.

That said, it remains a civil fault—a serious matter in family court. If one partner’s infidelity makes continuing to live together “intolerable,” it can serve as grounds for a divorce based on fault. This distinction matters: fault-based divorce can influence decisions on alimony or property division, especially if one spouse’s actions are seen as directly undermining the marriage.

Still, fault-based divorces are relatively rare today, as most couples opt for the simpler, less confrontational no-fault route. Yet, in emotionally charged separations, proving adultery can be a way to assign blame and potentially gain a more favorable outcome.

So, while France no longer criminalizes the heart’s wanderings, the law hasn’t entirely turned a blind eye. In the end, cheating may not be illegal—but it can still come at a high personal and legal cost.