To become self-employed in Belgium is an accessible entrepreneurial adventure that attracts a growing number of workers seeking more autonomy. In 2026, more than 1.2 million Belgians had chosen this status, according to NISSE. This guide walks you step by step through the process, from choosing your legal structure to optimising your tax position.

Why become self-employed?

The advantages of the status

Self-employed status offers many advantages:

  • Professional freedom: choose your clients, your hours and your projects
  • Tax optimisation: deduction of business expenses
  • Income growth: unlimited potential depending on your activity
  • Skills development: diversifying your expertise

The challenges to anticipate

Being self-employed also comes with responsibilities:

The steps to become self-employed

1. Check the eligibility conditions

To become self-employed in Belgium, you must:

  • Be at least 18 years old
  • Hold a qualification or experience in your field
  • Obtain basic business management knowledge (a course of at least 3 days)
  • Have a valid business establishment address

Good to know: basic business management knowledge has no longer been compulsory since 2018 for certain intellectual activities. Check your situation with an approved enterprise counter. To understand all the possible legal structures in Belgium, see our comparison guide.

2. Choose your type of activity

Three main categories:

Main activity: your only source of income

  • Full social contributions
  • Full social rights (pension, health insurance)
  • Taxable professional income

Secondary activity: alongside salaried employment

  • Reduced contributions if income < EUR 1,743.07/quarter (2026)
  • Social protection via your main job
  • Ideal for testing an activity

Post-retirement activity: for active retirees

  • An income cap to keep your full pension
  • Specific social contributions

3. Register with the Crossroads Bank for Enterprises (BCE)

Registration is done via an approved enterprise counter (guichet d'entreprise):

Documents required:

  • Identity card
  • Qualifications or proof of experience
  • Basic management certificate (if required)
  • Proof of your establishment address
  • The owner's authorisation (if working from home)

Registration cost: around EUR 90-100 (a one-off fee)

Once registered, you receive your business number (CBE number), which you will use in all your dealings.

4. Affiliate to a social insurance fund

A legal obligation within 90 days of your CBE registration.

Main funds:

  • Xerius
  • Acerta
  • Liantis
  • Securex
  • UCM (Union des Classes Moyennes)

Social contributions in 2026:

  • Provisional contributions: calculated on estimated income
  • Minimum: EUR 870.42/quarter (main activity)
  • Reconciliation: after your actual tax return

These contributions cover:

  • Pension
  • Health and disability insurance
  • Family allowances
  • The bridging right (in case of difficulty)

5. Take out health insurance (mutuelle)

Compulsory to get reimbursed for healthcare costs.

Options:

  • Mutualité chrétienne
  • Mutualité socialiste
  • Mutualité libérale
  • Mutualité neutre
  • Caisse auxiliaire d'assurance maladie-invalidité (CAAMI)

6. Open a business bank account

Since 2019, this is no longer compulsory but is strongly recommended in order to:

  • Separate personal and business finances
  • Make accounting easier
  • Give your business a more professional image

Popular banks for self-employed people:

For a detailed comparison with fees, see our article Which business bank should you choose in Belgium?

7. Register for VAT (if required)

VAT registration is compulsory if:

  • Your annual turnover exceeds EUR 25,000
  • You carry out certain activities (import, real estate…)
  • You choose to register voluntarily

Advantages:

  • Recovering VAT on business purchases
  • A more professional image

Disadvantages:

  • Strict invoicing obligations
  • Periodic VAT returns
  • Heavier administrative management

More information: see the FPS Finance website for details on VAT. Since 2026, electronic invoicing has become compulsory for all B2B transactions in Belgium.

Accounting and tax aspects

Choosing your accounting regime

Standard regime (recommended):

  • Double-entry bookkeeping
  • Working with an accountant is compulsory
  • More possible deductions

Flat-rate regime:

  • Simplified bookkeeping
  • Expenses calculated on a flat-rate basis
  • Limited to certain professions

Tax obligations

Annual returns:

  • Personal income tax: return due before June
  • VAT: quarterly or monthly returns
  • Client listing: if VAT-registered

Tax rates:

  • Progressive according to income brackets
  • Deductions available (business expenses, investments)

Advance payments:

  • Payable in 3 instalments a year
  • Avoid tax surcharges

Using an accountant

Strongly recommended to:

  • Optimise your tax deductions
  • Avoid costly mistakes
  • Save time on admin
  • Get personalised advice
  • Master your accounting obligations (7-year retention)

Average cost: EUR 800-2,000/year depending on complexity

Modern alternatives: tools such as Yuki, Exact Online or Odoo let you automate a large part of your bookkeeping.

Costs to expect in your first year

Summary table of costs:

Item Approximate cost
BCE registration EUR 90-100 (one-off)
Basic management course (if required) EUR 150-300 (one-off)
Social contributions EUR 3,500-4,000/year
Health insurance EUR 300-500/year
Accountant EUR 800-2,000/year
Professional liability insurance (recommended) EUR 200-600/year
Business bank account EUR 0-300/year
TOTAL EUR 5,000-8,000 in year 1

Tips for a successful launch

Before you start

  1. Test your activity alongside your job if possible
  2. Build up savings (3-6 months of costs)
  3. Study your market and the competition
  4. Set your rates (costs + margin)
  5. Prepare your tools (website, business cards)
  6. Write a solid business plan to validate viability
  7. Identify available regional grants (premiums, subsidies)
  8. Prepare your contracts and terms and conditions

The first few months

  • Activate your network: family, friends, former colleagues
  • Be visible: social media, LinkedIn, networking events
  • Polish your image: a professional website, visual identity
  • Manage your time: alternate between prospecting and delivery
  • Track your cash flow: monthly dashboards

Useful resources

Official sites

Support

Training

Conclusion

To become self-employed in Belgium in 2026 is an accessible project with the right preparation. The administrative steps have been simplified, and numerous support structures exist to guide you.

The keys to success:

  • Do your research thoroughly before you start
  • Surround yourself with professionals (accountant, social insurance fund)
  • Plan a sufficient start-up budget
  • Actively develop your network
  • Stay persistent in the first few months

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