What Tax Rules Apply to Business Owners?
The tax treatment of a company director depends on the legal form of the business (such as EURL, SARL, SA) and the type of tax regime selected (income tax or corporate tax). Here’s a comprehensive overview of the main tax obligations based on your situation.
Sole Proprietors: How You’re Taxed
If you operate as a sole proprietor, your business profits are taxed as part of your personal income. There is no distinction between business earnings and personal compensation — they’re both declared under the personal income tax system.
Depending on your professional activity, you must attach Form 2042 C PRO to your income tax return:
Industrial, commercial, or craft activities fall under the BIC (Industrial and Commercial Profits) category.
Liberal professions fall under the BNC (Non-Commercial Profits) category.
The rate of tax applied depends on your total household income and family situation.
Running a Company: Understanding Corporate Taxation
Most companies like SARLs, SAs, and SASs are automatically subject to corporate income tax (IS), though some may opt for personal income tax (IR) under certain conditions. For instance:
EURLs and SNCs are typically taxed under IR by default but can choose IS.
EURL: A single-person SARL, with taxation depending on whether it opts for IR or IS.
Under IS, the company’s profits are distinct from the owner’s income. The director declares their salary and any dividends on their personal income tax return. The company pays IS on profits after deducting the director’s salary as a business expense.
If the company distributes dividends, these are taxed twice:
At the company level under IS,
At the shareholder level via either:
Flat tax (PFU): 30% (12.8% income tax + 17.2% social charges),
Optional progressive income tax scale, under capital income.
Declaring Income and Dividends: Case by Case
| Legal Form | Who Declares | How to Declare Income | How Dividends Are Taxed |
|---|---|---|---|
| Sole Proprietorship (EI) | Owner | As BIC/BNC on personal income tax return | Not applicable |
| EURL (IR) | Sole associate-manager | Declare business profit as BIC/BNC on personal return | Dividends usually not applicable |
| EURL (IS) | Sole associate-manager | Declare salary as “wages and salaries”; deduct expenses if justified | PFU (30%) or optional income scale |
| SARL (IS) | Majority manager | Declare salary as income; some deductions like Madelin contracts allowed | PFU (30%) or optional income scale |
| SARL (IR) | Majority manager | Declare share of business profit under BIC/BNC | PFU (30%) or optional income scale |
| SA (IS) | Chairperson/CEO | Salary declared as income with standard deductions | PFU (30%) or optional income scale |
| SA (IR) | Chairperson/CEO | Declare share of profits under BIC/BNC | PFU (30%) or optional income scale |
| SAS / SASU (IS) | President/shareholder | Salary as “wages and salaries”; flat 10% deduction or actual expenses | PFU (30%) or optional income scale |
| SAS / SASU (IR) | President/shareholder | Share of profits under BIC | PFU (30%) or optional income scale |
| SNC (IR) | Managing partner | Profits as BIC/BNC; no 10% deduction | PFU (30%) or optional income scale |
| SNC (IS) | Managing partner | Salary as “wages and salaries” | PFU (30%) or optional income scale |
Each business structure has its own tax reporting obligations and potential deductions. Choosing the right setup and understanding your obligations ensures optimal tax efficiency for both your company and your personal finances.
