How to Register a Business in Belgium: Tax Requirements and Steps

Searching for information on how to register a business in Belgium and understand tax requirements often starts with a bigger question: which legal form fits your risk, taxes, and budget?

Belgium offers flexible choices – from lean to investor-ready – each with different paperwork and tax effects.

The main legal forms at a glance

Sole proprietorship (entreprise individuelle/eenmanszaak)

• Fast and cheap to start. You own everything – and bear all business debts personally
• Taxed under personal income tax (progressive up to 50% plus municipal taxes)
• Registration via an approved enterprise counter costs around €90

SRL/BV (private limited)

• Belgium's startup workhorse for business registration in Belgium
• No minimum capital since the 2019 Code of Companies and Associations (CSA) reform
• Must ensure "adequate initial equity" and prepare a 2-year financial plan for the notary (CSA Book 5)
• Limited liability if you run it prudently. Notary deed is mandatory

SA/NV (public limited)

• Fit for larger ventures and funding rounds
• Minimum capital €61,500 (CSA Book 7)
• Board governance and stricter reporting. Notary deed required

SC/CV (cooperative)

• For genuine cooperative purposes with at least three founders
• No fixed minimum capital, but notary deed and cooperative tests apply (CSA Book 6)

Partnerships

• SNC/VOF (general partnership) with joint and several liability
• CommV/SComm (limited partnership) with at least one general partner bearing unlimited liability
• Simpler setup; not always a notary deed required

Tax and risk comparisons in practice

Liability: SRL/SA/SC protect personal assets (with exceptions, e.g., wrongful management), while sole proprietors and general partners don't.

Tax: Sole proprietors pay personal income tax; companies pay CIT at 25%, with a reduced 20% rate on the first €100,000 for qualifying SMEs if conditions like director's remuneration (~€45,000/year) are met.

Cost/time: Sole proprietorship can be live in 1–3 days for €200–€500 total. SRL typically takes 5–10 business days including notary and publication, costing €1,500–€3,500.

How to choose with confidence

Your activity, investors, and risk profile dictate the form. For cross-border founders, the SRL balances liability, flexibility, and credibility with clients and banks. A quick diagnostic with a commercial lawyer can prevent painful restructures later – and clarify how to register a business in Belgium with proper tax effects before the first sale.

Need tailored help choosing the right structure for business registration in Belgium? Find a specialist on NexLaw.

Tax is where smooth setups often slow down. Belgium lets you register VAT at the same time as your BCE number – but only if your documents line up and your activity is properly coded.

VAT: when to register, which regime, what to file

• Register for a VAT ID before your first taxable supply, using form e604A (or e604B for changes)
• Standard VAT rate is 21%, with reduced 12%/6% and 0% for qualifying goods/services
• Small enterprise exemption: if expected annual turnover is €25,000 or less, you can opt out of charging VAT (Article 56bis of the Belgian VAT Code). You must add the required mention on invoices (e.g., "Small enterprise subject to the exemption – no VAT charged under Art. 56bis VAT Code")
• Filing frequency: monthly or quarterly depending on turnover and activity
• Returns and payments are typically due by the 20th of the month following the period
• File intra-Community listings and the annual client listing (customers > €250) by 31 March for the previous year (Royal Decree No. 1)

Income taxes: corporate vs. personal

• Companies pay Corporate Income Tax (CIT) at 25%
• Qualifying SMEs can benefit from a 20% rate on the first €100,000 of profits, subject to conditions (e.g., sufficient director's remuneration of around €45,000/year)
• Sole proprietors are taxed under the Personal Income Tax (PIT) scale (up to 50%), plus municipal taxes
• Advance payments each quarter (April, July, October, December) avoid surcharges
• Employers must withhold payroll tax (précompte professionnel/bedrijfsvoorheffing) on salaries and remit it monthly or quarterly

Cross-border and e‑commerce specifics

• Selling to EU consumers? Consider the OSS (One‑Stop Shop) for VAT to simplify multi-country compliance
• Intra‑EU B2B supplies require a valid VAT number and correct invoicing; report in your EC Sales List
• Importing goods needs an EORI number for customs clearance

This section is the heart of understanding tax requirements for business registration in Belgium: get your VAT regime right on day one, choose your income tax path, and calendar the 20th of the month and 31 March deadlines. For complex chains (drop‑shipping, SaaS + services), a quick pre‑launch tax review can save thousands in corrections.

Once the champagne pops, the compliance clock starts ticking. Keep these moving parts on schedule and you'll avoid most Belgian penalties in year one.

Accounting, filings, and meetings

• Keep Belgian GAAP books from day one
• Issue valid invoices showing your BCE/KBO number, VAT ID, invoice date/number, and VAT rate or exemption
• Using the small enterprise exemption? Add the legal mention (e.g., Article 56bis VAT Code – no VAT charged)
• Companies must hold an annual shareholders' meeting within 6 months of year‑end and file annual accounts with the National Bank (Centrale des bilans/Balanscentrale) within 7 months
• Late filing fees range roughly €120–€1,200 depending on delay and size
• File CIT via Biztax (companies) and PIT via Tax‑on‑Web (sole proprietors) each year
• Deadlines vary annually but expect roughly 6–7 months after year‑end for companies

VAT, payroll, and UBO hygiene

• VAT returns and payments are due by the 20th after the period (monthly/quarterly)
• File the annual client listing by 31 March
• Keep proof of intra‑EU VAT numbers and transport documents for zero‑rated supplies (Royal Decree No. 1)
• Employers: withhold and remit payroll tax monthly or quarterly; maintain Dimona and DmfA filings. For context on employment obligations, review Belgian labor law essentials
• Update the UBO register within 1 month of any change and confirm annually
• AML rules (Law of 18 September 2017) allow administrative fines for late or inaccurate data

Practical guardrails founders use

• Calendar the "big four": 20th (VAT), quarter ends (tax prepayments), 31 March (client listing), 6–7 months post‑year‑end (accounts + returns)
• Put invoice compliance on a template to avoid VAT correction letters
• For SRL cash‑poor years, re‑read the adequate equity test from CSA Book 5 before distributions – illegal dividends can trigger director liability

If you came here searching for information on business registration in Belgium and tax requirements, this is your year‑one survival list. Plug these dates into your project tool and share it with your accountant – then get back to selling.