The logic in one sentence
As a sole proprietor (natural person), your profit is taxed under the progressive personal income tax (up to 50% above ~€46,440) plus social contributions (~20.5%). In a company, the profit is first taxed under corporate income tax (20% on the first €100,000 bracket for eligible SMEs, 25% above), then the balance is taken out via salary or dividends. The switch becomes worthwhile when the gap offsets the hidden costs of the company.
The practical rule in 2026: switching to an SRL becomes mathematically attractive from around €60,000 to €80,000 of recurring annual net profit, provided you optimise your remuneration via VVPRbis dividends.
Decisio.be estimate — to be validated with an accountant depending on your profileSole proprietorship vs SRL — the underlying table
How much does an SRL really cost each year?
Before calculating the tax gain, you have to factor in the recurring costs that a company generates and that a sole proprietor does not have. This is what many people forget when comparing gross tax rates.
| Recurring cost item | 2026 annual range |
|---|---|
| Accountant (double-entry bookkeeping + balance sheets + corporate/legal-entity tax) | €1,500 - 3,500 |
| "Company" social contribution (federal flat rate) | ~€870 |
| INASTI director's contribution (on remuneration) | 20.5% of the gross allocated |
| Mandatory filing of annual accounts | ~€250-500 |
| Professional liability insurance, often reinforced | €200-800 |
| Total recurring costs (excluding remuneration) | ~€3,000 to 6,000/year |
To this is added the initial incorporation at a notary, generally between €1,000 and €2,000, plus the drafting of the articles of association. The SRL no longer requires a legal minimum capital since the Code of Companies and Associations (CSA) of 2019, but you still need to contribute "sufficient initial capital" (the financial plan, duly justified, must demonstrate viability — typically €6,100 to €18,550 depending on the sector).
The key lever: VVPRbis dividends at 15%
This is the central mechanism that makes the SRL fiscally attractive in Belgium. Normally, a dividend is subject to a withholding tax of 30%. But under certain conditions (the VVPRbis regime), it is reduced to 15%.
Worked example — profit of €100,000
Here is a simplified comparison between a sole proprietor (natural person) and an SRL director, on the same pre-tax profit of €100,000 (2026 assumptions, excluding particularities, to be validated with an accountant).
| Step | Sole proprietorship | SRL (with VVPRbis dividend) |
|---|---|---|
| Profit before contributions / corporate tax | €100,000 | €100,000 |
| INASTI contributions (~20.5%) | ~€20,500 | On director's remuneration (~€45,000 gross → ~€9,200) |
| Personal income tax base / Corporate tax base | ~€79,500 | Director's salary: €45,000 (personal income tax) — Remainder: €46,000 (corporate tax) |
| Federal personal income tax + surcharges | ~€31,000 | On €45,000 gross salary: ~€13,000 |
| Corporate tax on €46,000 (20% SME rate) | — | ~€9,200 |
| Reserve available after corporate tax | — | ~€36,800 |
| VVPRbis withholding tax 15% (if dividend) | — | ~€5,520 |
| Total net in your pocket (estimate) | ~€48,500 | ~€54,000 to 56,000 (after recurring SRL costs) |
This example is deliberately simplified to illustrate the logic. The real figures depend on your region (surcharges), your deductible expenses, your supplementary pension savings plan (EIP, PLCI, CPTI), the director's minimum fiscal remuneration (€45,000 in 2026 to benefit from the reduced corporate tax rate, or another threshold depending on the rules), and many other variables. A personalised calculation with an accountant is essential before switching.
🧮 Torn between sole proprietorship, SRL or combining?
The Decisio quiz tells you what really fits your profile and your sector.
From what point does the switch become obvious?
In practice, here are the recurring annual net profit thresholds above which the question should be seriously raised with an accountant:
- < €40,000: the SRL is rarely worthwhile. Stay a sole proprietor, optimise via PLCI and professional expenses.
- €40,000 to 60,000: grey area. The SRL becomes marginally attractive. To be studied case by case, especially if you anticipate growth.
- €60,000 to 80,000: the SRL starts to be clearly worthwhile, provided you use VVPRbis dividends and optimise the director's remuneration.
- > €80,000: the SRL is almost always more advantageous, except in special cases (unstable income, short-term project, assisting spouse, etc.).
Beyond tax — the other criteria to weigh
Classic mistakes when switching
In summary — the key points
- The SRL becomes worthwhile from €60,000 - 80,000 of recurring annual net profit
- Corporate tax at 20% on the first €100,000 bracket for eligible SMEs, 25% above
- VVPRbis dividends at 15% are the key optimisation lever (subject to conditions and a waiting period)
- Recurring SRL costs: €3,000 to 6,000/year minimum (accountant, filings, company contributions)
- Incorporation fees at the notary: €1,000 to 2,000
- Minimum share capital abolished in 2019, but a financial plan is mandatory
- Director's minimum remuneration: €45,000 to keep the reduced corporate tax rate
- Beyond tax: protection of assets, credibility, EIP, transfer
- A personalised calculation with an accountant is essential before switching