Tax optimisation in Belgium

Belgian taxation is complex: at Finest Consult, we turn it into an advantage for your business.

Good fiscal advice means more than compliance: it means creating a competitive advantage.

Contact the tax expert in Brussels for your tax return or tax optimisation.

Fast and efficient multilingual service for professionals, companies (solopreneurs, entrepreneurs, SMEs), NGOs, ABSLs (no profit associations), start-ups, professionals and self-employed (independent workers) like consultants or freelancers, including expats living in Belgium (British, French, Italians registered to AIRE, etc.). We can work with accounting software such as Accountable and others.

Tax declaration

Our tax audit methodology

  • Complete overview of the situation
  • Identification of areas for optimisation
  • Personalised action schedule
  • Regular monitoring

For companies

  • Analysis of optimal legal structure, planning of deductions, tax timings, research of incentives
  • Belgian tax returns, VAT declaration, Intervat, transfer pricing, regulatory documentation

For individuals / expats in Belgium

  • Status and tax residence, expatriate regimes, dealing with cases of double taxation and bilateral agreements
  • Tax optimisation of private assets, property management, financial investments, inheritance/donations
  • Are you an expat in Brussels/Belgium? We can help you meet all your tax obligations, including Brexit aspects

International taxation: UK, Italy and other countries

  • Optimum application of bilateral agreements
  • Transfer of residence, support for cross-border activity
  • Latest EU directives, DAC/CRS reporting, BEPS compliance

tax declaration belgium

Regulatory compliance guaranteed ITAA

Institute for Tax Advisors & Accountants – Belgium

ITAA chartered accountant Brussels Belgium tax

Tax management: added value

  • ITAA-certified expertise, network of expert advisors
  • Taylor-made business-oriented support
  • Multilingual services: EN/FR/IT

ROI (Return on Investment)

  • Reduce your tax burden by law
  • Avoid tax penalties and disputes
  • Improve your cash flow

Estimate your tax savings in Belgium now

Contact us

Belgian Tax Return in 2026

The Belgian tax return filing season for the 2026 tax year (income earned in 2025) will begin in April 2026.

The deadlines for submitting the return vary depending on the method used (online or paper) and the type of income.

Deadlines

Based on usual practices and current information, here are the likely deadlines:

  • Paper: The deadline is generally set for the end of June 2026.
  • Online (via MyMinfin/Tax-on-web): An extension is granted, often until mid-July 2026 (for example, July 15, 2026).
  • Tax return with specific income: If you have specific types of income (such as self-employment income or foreign professional income), the deadline for online filing is extended, often until mid-October 2026 (for example, October 18, 2026).

Contact our experts for your Belgian tax return

Salary after tax calculator: find out what’s your net salary in Belgium

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