Key takeaways
- The société simple is the only Belgian company form without a distinct legal personality.
- It is formed by a simple contract: no notarial deed, no minimum capital.
- Major trade-off: the partners are liable for the debts on their personal assets, without limit.
- Fiscally transparent, it mainly serves family wealth management and estate planning.
The société simple holds a place apart among Belgian legal forms: it is the only one without legal personality. It is not a capital company that protects your assets, but a contract by which two or more people pool resources for a common project. Long known as the société de droit commun or société civile, it was integrated into the Code of Companies and Associations (CSA) in the 2019 reform. This guide explains what it really is, its formation steps, and above all the cases where it is relevant, because its limits matter as much as its strengths.
What is a société simple?
The société simple lets two or more partners collaborate to carry out an activity or manage an asset together, without creating a distinct legal entity. Unlike an SRL, an SA or a cooperative company, it has no legal personality: it has no assets of its own separate from those of its partners, and does not act in its own name as a legal entity.
It is first and foremost a contract. The partners agree on contributions (money, assets, work), a common purpose and a sharing of the results. The société simple has been governed by the CSA since 2019, which took over and modernised the rules previously scattered across the Civil Code.
The key features to know
Before opting for a société simple, you need to gauge precisely what sets it apart from companies endowed with legal personality.
| Société simple | SRL | |
|---|---|---|
| Legal personality | ||
| Partners' liability | Unlimited, on private assets | Limited to contributions |
| Minimum capital | None | None |
| Notarial deed | ||
| Tax regime | Transparent (personal income tax on the partners) | Corporate income tax |
| Formation | Simple contract | Authentic deed and financial plan |
Tax transparency is a decisive trait. The société simple is not subject to corporate income tax: its results are taxed directly in the hands of each partner, under personal income tax, in proportion to their share. This transparency, combined with contractual flexibility, explains its favoured use for organising wealth held by several people.
How to form a société simple
The steps are far lighter than for a capital company, but a few remain essential to secure the project.
The formation steps
Draft the partnership contract
It sets the purpose, each partner's contributions, the sharing of profits and losses, and the management rules. A written form is strongly advised even if the law does not require it.
Set the registered address
The company's administrative address, distinct where needed from the partners' private home thanks to a business address.
Register with the CBE if there is an economic activity
Through an accredited business one-stop shop, which assigns an enterprise number; required as soon as there is an economic activity.
Keep suitable accounts
Simplified or double-entry depending on size, since the 2018 reform of enterprise law.
Get support
An accountant or adviser helps frame the contract and the partners' tax obligations.
Unlike an SRL, there is no notarial deed, no capital deposit and no financial plan to hand to a notary: the société simple arises from the partners' agreement. The care taken over the contract is therefore decisive, as it is the contract that organises the company's life and prevents disputes between partners.
Advantages and limits of the société simple
Advantages
- Simple and inexpensive formation: a contract is enough, with no notary or capital.
- Great flexibility to organise contributions, management and the sharing of results.
- Tax transparency: no corporate income tax, taxation in the hands of the partners.
- Discretion: the société simple has none of a capital company's publication obligations.
Disadvantages
- No legal personality and no assets of its own.
- Unlimited liability of the partners on their personal assets.
- Poorly suited to a risky commercial activity.
- CBE registration and accounting mandatory as soon as there is an economic activity.
The société simple trades patrimonial protection for lightness and flexibility. It is a sound choice when the risk of debts is low and the goal is to organise a collaboration or a patrimony, not to create a screen between the activity and private property.
When to choose a société simple?
The société simple shines in one precise use: wealth management by several people. Families organising the holding and transfer of a patrimony, parents preparing an estate while keeping control, partners pooling assets: it offers a flexible, fiscally transparent framework, without a capital company's formalism.
It also serves to structure certain collaborations between professionals or to hold participations, playing the role of a wealth-management vehicle. On the other hand, for a commercial activity that generates debts, the unlimited liability makes it a risky choice: an SRL, with its liability limited to contributions, is almost always preferable.
Structure your project with the right form
Société simple for a patrimony, SRL to protect your property: Monsiegesocial guides you towards the right form and handles the registered office of your company.
Even without legal personality, a société simple carrying out an activity needs a registered address, recorded at the CBE. Our business address solution lets you establish this administrative address, distinct from the partners' private home, and our company formation service steps in if you finally opt for a form endowed with legal personality.
Going further
- Legal forms in Belgium: comparison and guide to choosing: where the société simple sits among the other forms.
- Setting up an SRL in Belgium: the essential steps: the form that protects your assets.
- Setting up a cooperative company (SC) in Belgium: the collective option with limited liability.
