Starting a business in Belgium involves choices that affect the tax structure, personal liability, and administrative obligations from day one. Comparing common legal forms, measuring actual costs, and anticipating new regulatory constraints allows for sizing the project before signing any documents.
Legal forms in Belgium: costs and liability compared
The choice of legal status determines the amount of incorporation fees, the degree of personal liability, and management flexibility. The table below summarizes the decisive parameters for the three most commonly used forms.
| Criterion | Sole Proprietorship | SRL | SA |
|---|---|---|---|
| Minimum legal capital | None | 1 symbolic euro | Set by the Companies Code |
| Liability | Unlimited (personal assets exposed) | Limited to contributions | Limited to contributions |
| Notarial deed required | No | Yes | Yes |
| Publication in the Belgian Official Gazette | No | Yes | Yes |
| Management complexity | Low | Medium | High |
The sole proprietorship remains the quickest route: no notary, no publication, no capital to be released. The trade-off is direct: personal assets guarantee all professional debts.
The SRL attracts the majority of SME creators because it combines minimal starting capital with a clear separation between personal and professional assets. The notarial process and the publication of the incorporation deed in the Belgian Official Gazette incur costs that must be budgeted from the financial plan.
The resources compiled on the Oser Entreprendre! website detail these trade-offs according to the profile of each project holder, from freelancers to SME founders.
Registration with the BCE and VAT activation: two distinct procedures
Many first-time creators confuse registration with the Crossroads Bank for Enterprises and VAT activation. These are two separate procedures, managed by different organizations, and one does not automatically trigger the other.
Business number via an accredited counter
The accredited business counter registers the activity in the BCE and assigns the business number. This number identifies the legal entity with all Belgian administrations.
Without a BCE number, no invoice can be issued legally. The counter checks the access conditions to the profession (entrepreneurial skills, sectoral authorizations) before validating the registration.
VAT activation with the SPF Finances
VAT identification is then requested from the SPF Finances, either directly or through the same business counter. The processing time varies depending on the complexity of the file and the workload of the competent office.
VAT obligations depend on the chosen regime. The small business exemption regime allows not to charge VAT below a certain turnover threshold, but it does not necessarily exempt from all obligations related to electronic invoicing.
Electronic B2B invoicing in Belgium: a requirement from launch
Classic startup guides often stop at the step “open a business account and purchase invoicing software.” The Belgian regulatory reality goes further since the introduction of the obligation for electronic B2B invoicing.
Every invoice between VAT taxpayers must be structured and transmitted via the Peppol network, or through another channel compliant with the applicable standard. In practice, a PDF sent by email is no longer sufficient for transactions between businesses.
The obligation covers two distinct aspects:
- Issuance: the invoicing software must be able to generate invoices in a structured format compatible with Peppol and transmit them to the recipient via this network.
- Reception: even a company that invoices only individuals must be able to receive structured invoices from its professional suppliers.
- The small business exemption regime does not exempt, in principle, from this obligation, except for taxpayers conducting only transactions exempted by Article 44 of the VAT Code.
Checking the compliance of the invoicing software before the first day of activity avoids blockages with suppliers and the tax administration.
Financial plan for an SRL: what the notary examines
When establishing an SRL, the notary does not simply draft and publish the deed. He checks that the founders have established a financial plan covering at least the first two years of activity.
An insufficient financial plan can engage the personal liability of the founders if the company goes bankrupt within three years of its creation. The starting capital of the SRL can be set at one euro, but the financial plan must demonstrate that the equity and planned financing are sufficient to cover the projected activity.
The document must include several often underestimated items:
- The quarterly social contributions due by the independent manager, calculated on net professional income.
- The notarial fees, publication in the Belgian Official Gazette, and registration at the business counter, which represent an immediate outlay before any revenue.
- Mandatory insurances (professional liability according to the sector) and affiliation with a social insurance fund.
- The cost of invoicing software compliant with the Peppol obligation, often billed as a monthly subscription.
Undervaluing these charges in the financial plan does not pose a problem at the time of signing with the notary. The risk materializes later if cash flow does not hold up and the court examines the solidity of the initial plan.
Starting a business in Belgium relies on measurable trade-offs: legal form, VAT regime, compliance with electronic invoicing. Each decision made before going to the business counter or the notary conditions the obligations and costs of the following years. The financial plan remains the document where these choices converge and where their coherence will be judged in case of difficulty.
