María Olleros > Andersen > Madrid, Spain > Lawyer Profile

Calle de Velázquez, 110

Work Department



Partner and head of the Tax department in the Madrid, Valencia and Seville offices. Member of the Advisory Board of Andersen Global.


María is responsible for advising and providing ongoing tax planning services to business groups and their shareholders, especially with regards to all the different taxes applicable under the Spanish tax system. She also represents clients before the Spanish Tax Authorities during tax inspections and other tax related proceedings.

María also has experience in the real estate field in Spanish territory. Furthermore, she advises entrepreneurs and incubators of start-up projects, focusing on relevant tax benefits which are applicable to innovative business activities, as well as planning and advising on the international expansion of entrepreneurs.

On an international level, she has advised both foreign companies with an interest to develop their business in Spain, as well as Spanish companies needing to expand abroad.


Spanish, English, French


  • Valencia Bar Association, ICAV.

  • Lecturer of the Cátedra Cultura Directiva y Empresarial. Universidad Politécnica de Valencia, UPV.

  • Member of the Jury for the European Competition Climate Launchpad.

  • Member of the Board of Directors at AVAESEN (Valencian Cluster of Energy Industries).


  • Degree in Law, Universidad Cardenal Herrera CEU.

  • Master in Business Administration, Universidad Cardenal Herrera CEU.

  • Entrepreneurship Development Program, MIT -Massachusetts Institute of Technology- (Boston).