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Can you keep your micro-entreprise when you set up a company?

Yes with a SASU or SAS you chair, and under conditions in a SARL. Not in an EURL you manage. Running the same activity in both is strongly discouraged.
By Razvan Toma · Founder

Last updated 24 October 2026Sources cited in the text

TL;DR

Often yes, depending on your role in the company. The president of a SAS or SASU is treated as an employee for social security: they can keep their micro-entreprise. So can a minority or equal manager of a SARL. On the other hand, the sole shareholder who manages an EURL and the majority manager of a SARL cannot: like the micro-entrepreneur, they come under the self-employed social security scheme, where the same person cannot be registered twice.

Depending on your role in the company

RoleKeeping the micro-entreprise
President or managing director of a SAS / SASUYes
Shareholder of a SAS, SARL or EURL with no management roleYes
Minority or equal manager of a SARLYes
Majority manager of a SARLNo
Sole shareholder and manager of an EURLNo

The same activity in both: the real risk

Combining is meant for distinct activities. Invoicing the same service to the same clients sometimes through the micro-entreprise and sometimes through the company has no economic justification other than benefiting from the micro regime: Bpifrance Création strongly advises against it because of the tax risk. If the company takes over your activity, see instead moving from a micro-entreprise to a company. bpifrance-creation.fr

What does not change

  • You cannot have two micro-entreprises, or a micro-entreprise and another sole proprietorship.

Written by Razvan Toma, founder of LegalRapide. How we check our figures · LinkedIn

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