Recognized expertise in Belgian and international taxation

About Tax Law International

Your tax partner in Brussels

With over 25 years of experience, Tax Law International is now a leading firm in Brussels in the field of taxation for individuals, expatriates, and companies.

We assist our clients – individuals, executives, and international managers – in the management, optimization, and defense of their tax affairs, with precision and clarity.

Our expertise is based on:

  • Thousands of tax returns, including the most complex (IPP, INR, ISOC).
  • In-depth knowledge of international double taxation treaties.
  • Proven experience in negotiations with the Belgian tax authorities
    and managing tax audits according to the latest case law.
  • Continuous monitoring of tax developments via the Institute for Tax Advisors & Accountants (ITAA) and international professional networks.

Need Tax Advice?

A human approach,
personalized tax advice

Our firm prioritizes a direct and trusting relationship with each client. We believe that taxation is not just about numbers: it relies on a thorough understanding of personal and professional situations.

Our Values:

  • Proximity and Availability: in-person meetings in Brussels or video conferencing, according to your preferences.
  • Transparency and Clarity: every piece of tax advice is explained, documented, and understood.
  • Compliance and Security: all our procedures comply with Belgian and European legislation.

Clear, compliant, and optimized taxation

Leveraging this experience and a recognized practice in Belgian and European tax law, we offer comprehensive support:

  • Tax Returns (IPP, INR, ISOC)
  • Taxation for expatriates and foreign residents
  • Legal Tax Optimization and Wealth Planning
  • Assistance in case of tax audit or adjustment

Contact us to schedule a consultation with a certified tax expert in Brussels and get concrete, legal, and tailored solutions for your situation.

Discover our services

Personal Income Tax for Residents (IPP)

Simplify your tax declaration in Belgium.
Our support covers the analysis of your situation, the verification of withholding tax, and the optimization of your deductions.
Learn more about IPP >

Personal Income Tax for Non-Residents (IPP/INR)

Do you work in Belgium without residing there?
We help you correctly complete your non-resident declaration and avoid double taxation.
Learn more about IPP/INR >

Company Formation and Financial Plans

Give your project a solid foundation.
We help you establish a compliant financial plan and choose the legal structure best suited to your ambitions.
View the Company Formation service >

Tax Advice and Support

Gain a clear and strategic vision of your taxation.
Our expertise covers the planning, optimization, and regularization of your personal or professional taxes.
Discover our tax advice >

Advice for Expatriates and Foreign Residents

Expatriate or Foreign Resident?
We guide you through your tax procedures in Belgium to ensure compliance, clarity, and peace of mind.
View the International Taxation service >

Tax Procedures: claim, rectification notice

In case of a rectification or disagreement with the FPS Finance, act quickly.
We assist you with all steps to defend your rights and reduce the risk of penalties.
Discover our assistance with tax procedures >