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Guillermo Bailach

Legal Director
Madrid
About

Guillermo Bailach is legal director in the Tax department at DLA Piper Spain. He has over 10 years’ experience advising multinational enterprises on M&A deals and designing bespoke tax-efficient international structures.

Guillermo leads the Tax Liability Insurance and Pillar 2 practice. He also has significant experience in advising on M&A deals and all types of tax procedures (tax audits and tax litigation).

Guillermo is a Ph.D. in Law candidate at Complutense University of Madrid and his research focuses on international taxation. He completed his LL.M. at ie Law School with honors and holds a Law Degree from Complutense University of Madrid. Also, Guillermo is a Professor of Tax Law at UCM.

Areas of FocusConsumer Goods, Food and RetailInsuranceLife SciencesTax

EXPERIENCE

  • Advising leading underwriter of transactional insurance products on M&A deals for an aggregated value of more than EUR 8,000 million.
  • Advising on the tax structuring and financial modelling for the construction and development of a sugar factory in Spain with an estimated value of EUR 450 million.
  • Advising top transport company on tax aspects of a bidding process with an estimated value of EUR 430 million.
  • Advising several multinational enterprises in the Life Science sector of complex restructuring processes including a number of transnational mergers and de-mergers.
Languages
  • Spanish
  • English
Education
  • PhD in Law (ongoing) at Universidad Complutense de Madrid (Research Stay at Harvard)
  • Master in Business Tax Advice (LL.M.) at ie Law School (Dean's List)
  • Law Degree at Universidad Complutense de Madrid

Awards

  • ITR World Tax - Rising Star (2024)
  • The Legal 500 – Ranked
  • Dean´s list award - ie Law School (L.L.M.).

Publications

  • El deber de secreto profesional de los abogados, ¿trinchera frente al ataque de DAC6? – Cinco Días.
  • Tregua a los productores españoles de obras audiovisuales extranjeras – elEconomista.
  • El Suministro Inmediato de Información en el IVA: ¿cambio o revolución? – Cinco Días.
  • Discriminación impositiva a las inmobiliarias europeas – Expansión.
  • Ironías de la nueva Ley del Impuesto sobre Sociedades – Expansión.

Seminars

  • Professor at UCM – Tax Law.
  • Lecturer at UCM School of Legal Practice's LL.M. – Interest expense limitations and exit tax.
  • Director at UCM School of Legal Practice's course – Global Minimum Tax
  • Coordinator at UCM School of Legal Practice's course – Taxation on real estate transactions.

Prior Experience

  • 2013-14; Associate at big four
  • 2011-13; Trainee and Associate at Madrid based national law firm
Additional Information

Pro Bono Work

Guillermo also dedicates an important amount of time to pro bono matters for different NGOs, such as Fundación Infantil Ronald McDonald, Fundación Balia or Education for Employment.

Additional positions

Associated professor at ie Law School.

Memberships And Affiliations

  • Member of the Madrid BAR Association since 2012

My latest insights

Event

DLA Piper XXI Latin America tax webinar: FY 2024 tax closing highlights

14 November 2024 .1 minute read

Publication

The OECD's recent Pillar 2 release: the Consolidated Commentary to GloBE Model Rules

30 April 2024 .2 minute read

Publication

The Spanish Tax Agency approves Guidelines of the General Tax Control Plan for 2024

5 March 2024 .3 minute read

View All

Connect

Phone

+34 917 887 376
(Work, Madrid)
+34 675 27 78 26
(Mobile, Madrid)
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