Démarche en ligne

Declare and pay the C3S (Social Contribution of Solidarity of businesses) (Online Service)

Carry your IDs

Enables secure remote declaration and C3S remote settlement with free pre-registration.

    Go to the online procedure

    Where can I get information

    For details, please use the practical information sheets :

    J'ai réalisé une démarche administrative

    Je donne mon avis sur Services Publics +. L'administration concernée me répondra.

    Émetteur de la démarche en ligne : Net-companies-GIP Modernization of social declarations

    Verified 17 January 2024 - Directorate for Legal and Administrative Information (Prime Minister)