Starting a Business in 2025: SARL/EURL or SAS/SASU — Which Structure Should You Choose?

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If you’re preparing to launch a business in France, one of the first and most strategic decisions you’ll face is choosing the right legal structure. Among the most popular are the SARL (or EURL for single associates) and the SAS (or SASU). Each has distinct implications in terms of social charges, retirement contributions, and dividend taxation. Here’s a clear breakdown to help guide your decision.

1. Social Contributions on the Manager’s Salary

The amount of social charges paid on the manager’s salary differs significantly depending on the chosen legal form.

  • SARL or EURL: If the manager holds more than 50% of the company’s capital, they are classified as a self-employed worker (TNS). Social contributions in this case typically range between 35% and 55% of the net salary.

  • SAS or SASU: The manager (regardless of their title) is considered an assimilated employee. As a result, social contributions are generally higher, ranging from 50% to 70% of the net salary.

Key point: If your objective is to maximize short-term salary, the legal structure will influence the net income you retain:

  • Choose SAS/SASU if you plan to pay yourself less than €25,000 annually.

  • Choose SARL/EURL if you aim for a salary above €25,000, where lower contribution rates may lead to more take-home pay.

However, maximizing immediate income may not be your only goal. If you’re over 45, for instance, your future retirement income might be a higher priority than short-term salary.

2. Retirement Contributions and Benefits

In a SAS/SASU, managers contribute to the general employee pension system, which implies higher social charges—but also better retirement benefits. For the same salary level, retirement entitlements will generally be more favorable in a SAS compared to a SARL.

In contrast, SARL/EURL managers pay into a different system with lower contributions, but also reduced pension benefits. If you prefer to manage your own retirement savings, this model may be more attractive.

3. Dividends and Social Contributions

Another major difference lies in how dividends are treated:

  • In a SARL, certain dividends paid to managers are subject to social contributions, particularly when they exceed specific thresholds. This is intended to prevent excessive use of dividends as a substitute for salary.

  • In a SAS, dividends are not subject to social charges, regardless of amount. This allows greater flexibility in choosing how to allocate profits—either as salary or dividends—especially when the distributable surplus is significant.

Note: This dividend advantage in a SAS is most relevant when the total amount to distribute exceeds €150,000.

Summary: How to Choose Between SARL/EURL and SAS/SASU

Your choice should align with your personal goals and the financial outlook of your business:

  • For stronger retirement coverage → SAS/SASU

  • To reduce social contributions and increase short-term income → SARL/EURL

  • To optimize dividend payouts when profits are high → SAS/SASU

Final Recommendation

While the trends above provide a useful framework, each entrepreneur’s situation is unique. Factors such as your age, financial goals, planned income, and investment strategy all play a role. For a fully informed decision, it’s highly advisable to consult a legal or accounting professional who can evaluate your individual circumstances and simulate different scenarios.