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Company formation glossary

The terms you will come across when setting up a company, defined in one or two sentences. Service-public

By Razvan Toma · Founder

Last updated 22 October 2026Sources cited in the text

TermDefinition
Articles of association (statuts)The document that creates the company and sets its rules: name, purpose, registered office, capital, duration, officers, powers.
Share capitalThe partners' contributions to the company; it belongs to the company and is stated in the articles. €1 minimum for a SAS or SARL.
Certificate of deposit of fundsCertificate issued by the bank or notary once the capital has been deposited (commercial companies).
Legal noticeNotice of incorporation published in an authorised newspaper; its price is a flat rate set each year by ministerial order.
Guichet uniqueThe formalites.entreprises.gouv.fr website, run by INPI, mandatory since 2023 for all business formalities.
GreffeThe registry of the commercial court (in Paris, the tribunal des activités économiques), which checks the application and registers the company with the RCS.
RCSTrade and companies register.
RNENational business register, kept by INPI.
KbisExtract of registration with the RCS, the company's "identity card".
SIREN / SIRETThe business's 9-digit number / the 14-digit number of each establishment, assigned by Insee.
RBERegister of beneficial owners: people who hold more than 25% of the capital or voting rights, or who control the company.
Registered address (domiciliation)The address of the registered office; it can be at the director's home, in business premises or with an approved domiciliation provider.
Company in formationA company between the signing of the articles and its registration; it does not yet have legal personality.
RegularisationA request from the greffe to correct or complete an application before registration.
Assimilé salarié / TNSThe director's social security schemes: the general scheme (president of a SAS) or the self-employed scheme (majority manager of a SARL).
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