Frank Vanbiervliet

Director, Tax Dispute Resolution | VAT | Where legal meets business

Who I Am

I am a Director within the Tax Controversy team, specializing in tax litigation and advisory services across a wide range of tax domains. With more than three decades of experience, I combine hands-on client work with academic and professional leadership in the Belgian tax community. I am active at our Kortrijk office.

What I Do

  • Represent companies and individuals in all stages of tax disputes, from the administrative phase to proceedings before national tax courts.
  • Provide strategic tax advisory services, particularly in the fields of VAT, indirect taxes, environmental levies, and local taxes.
  • Support clients with corporate income tax and procedural tax law matters.

Who I Work With

  • Corporates of all sizes, including multinational groups and Belgian businesses, facing tax audits, disputes, or complex advisory issues.
  • Private clients seeking pragmatic and effective solutions for tax challenges.
  • Professional peers and students through my roles as lecturer and assessor in the Belgian tax and accountancy landscape.

My Approach

I take a hands-on and solutions-oriented approach, blending in-depth legal expertise with a practical perspective shaped by my teaching and leadership roles. I strive to help clients resolve disputes efficiently while ensuring legal soundness and long-term compliance.

Credentials & Leadership

  • Lecturer in VAT, tax procedure, and ITAA deontology at Syntra West (Kortrijk and Brugge) and VIVES-Brugge Business School.
  • Rechtskundig Assessor at the Institute for Tax Advisors and Accountants (ITAA).
  • Chairman of the Dutch-speaking Executive Chamber at BIBF-IPCF (since 2015).
  • Member of the Brussels Bar.

Why Deloitte Legal

At Deloitte Legal, I work within a multidisciplinary environment that combines tax litigation expertise with advisory and compliance capabilities, allowing us to support clients end-to-end in both local and international contexts. This integrated approach ensures clients receive not only legal defence but also forward-looking tax strategies.