Yael Fierro Guillén

International Taxation, Tax Planning, Tax Law, Municipal Law, Customs Law and Foreign Trade.



(+593 2) 452 3800

Yael Fierro Guillén

She completed his undergraduate studies at the University of the Americas and she is a Master in Tax Planning and International Taxation at the Universidad Andina Simón Bolívar. She has several years of experience in areas of tax advice and sponsorship in national, customs and municipal taxation in the public and private sectors.

She has worked for several years in public institutions such as the Tax Court, Internal Revenue Service, Municipality of the Metropolitan District of Quito, as well as in important legal studies in Ecuador. She is currently studying Accounting and Taxation to earn his second undergraduate degree. She is Lawyer Level 2 for the Legal 500 rating, and she was an expositor at the XVII National Tax Days, thematic: eradication of elusive practices and phantom companies.

  • Master’s Degree in Business Law – Universidad Andina Simón Bolívar UASB (Ongoing)
  • 2020  Master Degree in Tax Planning and International Taxation – Universidad Andina Simón Bolívar UASB
  • 2018   Training on reforms initiated in 2017 with an emphasis on the Economic Reactivation Act.
  • 2017    Training regarding the reforms initiated in 2016 with the issuance of Resolutions and legal amendments of tax application, as well as specific processes such as the Law on Private Public Associations and the tax benefits derived from this regulation.
  • 2015    Higher specialization in Company Law – Universidad Andina Simón Bolívar UASB
  • 2015    Higher Specialization in Taxation – Universidad Andina Simón Bolívar UASB
  • 2014    Lawyer of the Courts and Tribunals of the Republic – University of the Americas UDLA (First Place in the Honor Roll of the Faculty of Law)
  • 2014    Training registration process and related responsibilities to SRI APPLICATIONS: ATS and APS
  • 2014    Training regarding the use of the system, as well as explanation of import procedures. Customs processes and repacking. – ECUAPASS SYSTEM
  • 2009   IV International Conference on Economic Law. “The new Roles of the State in the Economy: fiscal policy, business, environment and integration” – Universidad Andina Simon Bolívar UASB
  • 2007    Diploma under the title of Assistant Accountant – Ecuadorian Vocational Training Service
  • 2007    Diploma under the title of Tax Assistant – Ecuadorian Vocational Training Service
  • 2021 Associate Lawyer at SOLINES & ASOCIADOS Abogados (S&A)
  • 2020 Tax Legal Manager  –  Ecovis Ecuador Cía. Ltda.
  • 2019  Lawyer In House – South Atlantic Group
  • 2018  Panelist – Ecuadorian Tax Days “Expiration and tax requirement applicable after the Law on Productive Development”.
  • 2013  Associate Lawyer in Tax Department – Fabara Y Compañía Abogados C.L.
  • 2012  Public Worker – Cantonal Council for Integral Protection of Children and Adolescents of the Canton Rumiñahui Copinar
  • 2010  Judicial  Officer – District Court Of the Prosecutor No. 1 De Quito
  • International Taxation
  • Tax Planning
  • Tax Law
  • Customs Law and Foreign Trade
  • Municipal Law
  • Pichincha CAP Bar Association
  • Ecuadorian Institute of Tax Law
  • Associate Tax Attorney LEVEL DOS – Legal World Ranking 500
  • “Digital economy concepts applied to international taxation” – Legal Journal Iuris Dictio. Dossier No. 26, December 2020. https://revistas.usfq.edu.ec/index.php/iurisdictio/article/view/1832