Damiano M. Slongo

lic. iur. HSG, Certified Tax Expert
Partner, Member of the Executive Board

Direct +41 44 289 25 03


Areas of responsibility

  • Domestic and international tax planning for private clients
  • Tax structuring for domestic and international companies or groups of companies
  • Advisory services in connection with property taxes
  • Advisory services on stamp duty, withholding tax and
    EU-savings tax queries
  • Tax returns
  • Tax investigations and penalties


  • Member of International Fiscal Association (IFA)

Academic/professional background

  • Certified Tax Expert (2006)
  • lic. iur. HSG, University of St. Gallen (2001)


  • Since 2014 with Treuco, since 2017 Partner and Member of the Executive Board
  • Tax advisor in a tax consulting firm, a bank and a multi-family office in Switzerland and England (2001-2014)
  • Lecturer at the Swiss Tax Academy (since 2009)


  • German
  • English
  • French