- OUR
Team

Oscar Jiménez
FOUNDING PARTNER AND DIRECTOR
OF THE LEGAL AND TAX PRACTICE
Lawyer with administrative, business and leadership skills. With more than 20 years of experience that have allowed him to have a network in the U.S. and Latin America, focusing his work on multinationals and local companies, as well as families and individuals with high net worth, on national and international corporate taxes, tax planning and structuring of projects and transactions, international investments, reorganizations and mergers and acquisitions, and other tax and legal matters.
Lawyer and with graduated studies in Tax Law from Universidad del Rosario, in customs law from Universidad Externado, he obtained a Master degree in international tax law (LL.M.) at the University of Florida USA and finally, he developed his Master degree in Business Administration (MBA) at Universidad de los Andes.
Postgraduate professor in tax law programs in which he has overseen the following subjects: taxation in infrastructure, taxation in international transactions, Value Added Tax, income tax and tax planning, among others.
Independent reviews from colleagues and clients have allowed the firm Jiménez Duarte Asociados to be classified in the International Tax Review and Leaders League, global rankings, in the tax area.

Professional experience
- Jiménez Duarte Associates. Founding Partner and Director of Legal Practice. (2017 – present)
- Deloitte Advisors and Consultants Ltda. Manager – Tax & Legal. Bogota, Colombia (2010 – 2017)
- Posse Herrera & Ruiz Abogados. Senior Consultant – Tax Division. Bogota, Colombia. (2005 – 2010)
- Colombian Institute of Tax Law. Researcher. Bogota, Colombia. (2005)
- Grant Thornton. Auditors – Consultants. Lawyer – Legal Services and Tax Division. (2004-2005)
Academic background
- Universidad de los Andes. Master in Business Administration (MBA). Bogotá, Colombia. (2011- 2013)
- Babson University. Entrepreneurship Program. Boston, United States. (2013)
- University of Florida. Master of Laws in International Taxation (LL.M.). Gainesville, Florida. United States. (2009)
- Externado University. Graduated Studies in Customs Law. Bogotá, Colombia (2008)
- Rosario University. Graduated Studies in Tax Law. Bogotá, Colombia (2006)
- Rosario University. Lawyer. Emphasis in Public Finance and Taxation. Bogotá, Colombia (2004)
Academic experience
- Javeriana University. Professor of Value Added Tax. (2018 – Present).
- Externado University. Professor of infrastructure taxation. (2016- Present) and academic pair (2015).
- Sabana University. Professor of taxation in international transactions. (2015-Present).
- Central University. Professor of income tax (2015- Current) and tax structuring (2015 – 2018).
- Academic peer of the Colombian Institute of Tax Law. (2015 – Present).
- University of Pamplona. Part of the Creamos Colombia Project. (2016)
Distinctions and memberships
- Member of the Commercial Lawyers Association (2018 – Present).
- Member of the Antioquia Center for Tax Studies (2017 – Present).
- Member of IFA. (2014- Present)
- Member of US Alumni (2010- Present)
- Member of the Colombian Institute of Tax Law. (2005 – Present)
- Colfuturo Scholarship Holder. (2009)
- “Latin America Scholarship. (2009)
Publications
- “Interpretation of Double Taxation Avoidance Agreements”. Book ” Algunas reflexiones del impuesto sobre la renta y complementarios en Colombia “. Ed. Externado 2010, 2012, 2012, 2013, 2014 and 2016.
- “Reorganizaciones Empresariales y su impacto en Impuesto sobre la Renta”. Book “Algunas reflexiones del impuesto sobre la renta y complementarios en Colombia”. Ed. Externado 2010, 2012, 2012, 2013, 2014 and 2016.
- “Descuento por impuestos pagados en el exterior e impuestos de entidades extranjeras.” Book “Reforma Tributaria”- Ley 1739 de 2014. Ed. Externado 2015.
- “Fiducia Mercantil en la reforma tributaria”. book “Reforma Tributaria – Ley 1607 de 2012”. Ed. Externado 2013.
- Eliminación de los Beneficios Tributarios al Endeudamiento Externo” Legis. 2011.
- “Ganancias de Capital en los Convenios de Doble Imposición”. Global Tax Law. Journal of the Latin American Institute of Tax Law. 2010.
Testimonial
We have worked in several tax advisory and consulting projects on compliance, planning and litigation issues in multiple sectors, including mining, oil and gas, financial services, telecommunications, infrastructure, electricity, real estate, health and agribusiness.
SONY
Adivignon de Paepe
Senior Manager Finance and Administration
QUAD/ GRAPHICS
❝ I have had the great opportunity to work with Oscar Jiménez for more than 15 years and has always been characterized by his great professionalism, honesty and fulfillment. With his broad experience, he has accompanied us in various business activities such as fiscal management, legal and tax planning, deferred income tax, intercompany capitalization, advice on capital restructuring, mergers and acquisitions among others. It has an excellent fluency in English-Spanish communication that makes Oscar an integral executive, whom I do not hesitate to give my best recommendations. ❞
Héctor Ariza Sanchez
Finance Director – Controller
TECH MAHINDRA COLOMBIA SAS
Nancy Patricia Cardona Aguilar
Colombia Country Controller
ACI WORLDWIDE
Leonardo Escobar
CEO
AYESA
Felix Chacin Romero
CFO – Controller
EF Education First
Mariangela Falsone
Regional Finance Manage – EF Education First