Taxation
Tax advisory services 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
Regulatory compliance guaranteed ITAA
Institute for Tax Advisors & Accountants – Belgium
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
Tax optimisation in Belgium 🇧🇪
Tax optimization encompasses all legal strategies that allow a company or an individual to reduce the amount of taxes they pay.
In Belgium, where the tax system is complex, this approach involves intelligently using the provisions established by the legislature to lighten your tax burden in a completely legitimate manner.
Unlike tax evasion—which is illegal and involves hiding income or defrauding the authorities—tax optimization strictly respects the laws in force, including those specific to the three regions (Brussels, Wallonia and Flanders).
Among the commonly used tools by taxpayers you’ll find:
- Maximizing tax deductions (professional expenses, investments, etc.);
- Making optimal use of tax credits and tax reductions;
- Choosing an appropriate business structure to benefit from advantageous tax regimes (such as the notional interest deduction, the deduction for innovation income, etc.);
- Applying for advance tax rulings to secure your tax situation.
By engaging specialist advisors in Belgian tax law like our experts, it’s possible to reconcile economic performance with legal security, while remaining compliant with local tax obligations. We serve locals and expats.
Ask our experts how to reduce your taxes in Belgium
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.
Key deadlines
Based on usual practices and current information, here are the likely deadlines to stay compliant and avoid fines:
- 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).