Sérgio Tribuna

Founding Partner | Lawyer

"Excellence and the continuous pursuit of improvement are the culture and DNA of Cooperate Legal Services."

By deciphering the fiscal and legal framework, we build solid and efficient solutions that protect our clients' interests against uncertainty.

We don't just manage the bureaucracy; we design the safest path to your success, based on the solid knowledge that unites a team of professionals, some of whom, like me, have more than 25 years of judicial experience.

Academic Qualifications & Specialization:

  • Master's Degree in Tax Law

Brief Biography:

With over three decades of legal experience, Sérgio Tribuna is a leading figure in the field of Tax Law in Portugal.

A lawyer since 1993, his career is marked by his time as a Tax Inspector at the Lisbon Finance Directorate (VAT Services).

This dual vision — institutional and private — gives it a unique ability to anticipate risks and design tax defense solutions with surgical precision.


Areas of expertise:

  • Tax Litigation and Defense in ICMS Audits.
  • Tax Optimization and Planning for Business Groups.
  • Strategic Consulting in Indirect Taxes and Transactions.

📞 ( 351) 218 216 040

✉️ sergio.tribuna@cooperate.pt