What are the characteristics of a SASU?

Creating your SASU: everything you need to know!

SASU companies are very popular with entrepreneurs, thanks to the ease with which they can be set up and managed. Great flexibility, protection for the sole shareholder, social and tax regimes are just some of the advantages to be discovered without delay!
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Updated February 28, 2025
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A SASU is a société par actions simplifiée unipersonnelle, i.e. with a single shareholder. A particularly popular status, the share of single-member SASs remains in the majority, stabilizing at 27% of companies created in 2018, a record!

The SASU can be used to carry out a wide range of commercial, craft and agricultural activities. Its operation is flexible, and depends on your preferences when setting it up. But that's not all: there are numerous advantages for entrepreneurs in all sectors!

Let's find out everything you need to know to set up your SASU!

The complete guide to setting up your SASU in 2020

Back to basics: What are the main features of SASU?

The SASU offers great flexibility: the sole shareholder can be an individual or a legal entity, and there is no minimum capital requirement. If capital contributions exceed €30,000, or if they amount to more than half the share capital, an auditor must be appointed.

The sole shareholder of a SASU is free to organize the operation of the company as he or she sees fit in the Articles of Association. The SASU must be managed by a Chairman, who is usually the sole shareholder.

Setting up a SASU is not at all time-consuming! All you need to do is :

What are the advantages of a SASU?

The first advantage of a SASU is that the sole shareholder's liability is limited to the total amount of his or her capital contributions to the company.

In other words, his personal assets cannot be used to recover any losses generated by the company (unless the administrative court recognizes a management error). This is a reassuring safeguard for entrepreneurs who often invest part of their assets to launch their business.

The Chairman of a SASU is therefore treated as an employee, and is affiliated to the general social security scheme. As such, they benefit from extensive, high-quality protection. If they are not remunerated, they are not affiliated to any social security scheme.

Finally, the tax system of a SASU can be advantageous in many cases. The rules governing the Chairman's remuneration are defined in the SASU's articles of association when the company is set up. He may, if he wishes, carry out his duties on a voluntary basis. Otherwise, he is subject to income tax on the amount of remuneration he receives in his capacity as Chairman.

If the Chairman receives dividends, he will be subject to income tax on the amount of his dividends and the interest earned on his shareholder current account.

What are the advantages of company domiciliation for a SASU?

It's not uncommon to think that a company should be domiciled at the employees' actual place of work. But think again! French law allows companies to separate their registered office from their actual place of business. In this context, many single-member SASU companies opt for company domiciliation.

Domiciliation companies offer a wide range of prestigious addresses, often located in the most sought-after areas of the capital or major French cities.

You're free to domicile your company wherever you like!

A prestigious domiciliation considerably enhances the credibility of your project in the eyes of all your business and financial partners. Your business card shines and impresses.

Using a domiciliation company not only provides you with a prestigious address, but also considerably eases your day-to-day workload.

Tailor-made offers are created for all entrepreneurs wishing to outsource time-consuming and tedious tasks at lower cost: day-to-day mail management, administrative, tax and legal formalities, and so on. In addition, a telephone secretariat shared by several companies can take your messages in your absence. Finally, you can rent meeting rooms to receive all your customers, associates and partners in complete confidentiality, and in suitable premises.

You can subscribe to each service "à la carte", according to your actual needs. So you only pay for what you actually use!

With SeDomicilier, you can obtain a certificate of domiciliation for your SASU in less than 5 minutes, in a 100% online process. All your services are then available in a personalized, secure virtual office.

Business domiciliation allows you to focus on the missions with the highest added value: those that drive the growth and success of your project!

Written by our expert Paul LASBARRERES-CANDAU
March 9, 2020
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