The official tools for entrepreneurs

Simulators and assistants to develop your business, from legal status to hiring.

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Pour accéder à nos simulateurs les plus pertinents pour votre activité

The Siret number is a 14-digit number unique to each company. Example: 40123778000127

The tools at your disposal

We provide you with assistants and simulators to help you manage your business, anticipate levies and plan your cash flow accordingly.


Calculation of net salary, net after tax and total employer cost in France. Many options are available (executive, internship, apprenticeship, overtime, etc.)

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Calculation of your income based on turnover, after deduction of contributions and income tax.

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Status ComparisonBêta

Auto-entrepeneur, EI/EURL or SASU? Simulate the differences in income, retirement and health benefits

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Who are we?

We are a small, independent, multidisciplinary team within . We are committed to being close to your needs in order to constantly improve this site in accordance with the approach.

We have developed this site to assist entrepreneurs in the development of their business.

Our objective is to remove all uncertainties with regard to the administration so that you can concentrate on what matters: your business.