Joaquim Heirman

Director, Tax Advisory | Indirect Tax (VAT) | Real Estate | Where legal meets business

Who I Am

I am a Director within the Tax Advisory team and specialise in all aspects of VAT law, combining legal expertise with hands-on experience in advisory and litigation. Alongside my practice, I am active in academia as a research assistant at Ghent University and a lecturer at KU Leuven. I am active at our Zaventem office.

What I Do

  • Advise and represent clients in VAT disputes, including litigation before courts and negotiations with administrative authorities.
  • Provide specialist guidance on real estate taxation, including VAT on construction, sales, leasing, and sale-and-lease back operations.
  • Support clients on VAT and M&A transactions, VAT grouping schemes, and the application of reduced rates and exemptions in regulated sectors such as healthcare and education.
  • Publish and teach regularly on VAT and real estate topics, bridging theory and practice.

Who I Work With

  • Privately held companies, including real estate developers and investors.
  • Clients in the financial services, healthcare, education, and automotive sectors.
  • Governmental institutions and law firms seeking VAT litigation and advisory expertise.

My Approach

I combine rigorous technical knowledge with a pragmatic, solution-driven approach. My aim is to help clients resolve disputes efficiently, while also structuring VAT matters to prevent future issues and support long-term business objectives.

Credentials & Leadership

  • Guest professor at Ghent University (VAT) and lecturer at KU Leuven (VAT & real estate).
  • Author of numerous publications on VAT in leading periodicals and books.
  • Brussels Bar, since 2009.

Why Deloitte Legal

At Deloitte Legal, I work in close collaboration with Deloitte Belgium’s Tax & Legal practice under a privileged cost-sharing agreement. This unique model allows me to combine legal expertise with multidisciplinary tax and business advisory capabilities, delivering integrated and forward-looking VAT solutions to clients.