Oliver Biernat

Founder & Managing Director

General inquiries

Hanauer Landstr. 148a, Frankfurt am Main, Germany
o.biernat@benefitax.de
+49 6925 622 7610

About Oliver

Oliver Biernat is Founder and Managing Partner of Benefitax. He is a German Chartered Accountant, Certified Tax Advisor and Specialist Advisor for International Taxation with more than 30 years of experience. Since 2008, he has chaired GGI's International Taxation Practice Group (ITPG), increasing its size to more than 570 experts from 90 countries in the process.

Key competences

International Taxation, Financial Compliance, Tax Due Diligence, Financial Due Diligence, Transfer Pricing incl. documentation, Inheritance and Gift Taxation

Company

Benefitax GmbH

Auditing & Accounting - Tax - Advisory - Corporate Finance - Fiduciary & Estate Planning

Hanauer Landstr. 148a, Frankfurt am Main, Germany

Languages

EnglishGerman

Expert Groups

Auditing, Reporting & ComplianceBest Practices for Professional Services OrganizationsBusiness Development & MarketingCorporate & TechCorporate Governance & ComplianceDebt Collection, Restructuring & InsolvencyEmployment LawGlobal Mobility SolutionsInternational TaxationLeadership & Transformational ChangeM&ATrust & Estate Planning

Leadership roles

GGI Global Chair · International Taxation

Articles

PRESS RELEASE

Three German GGI member firms recognised as Top German Tax Advisory Firms by Handelsblatt

Oliver Biernat, Martin Thieslauk, Andreas Gottmann, Bernhard Schwechel, Tobias Schreiber, Boris Michels

03 April 2025

GGI FYI GMS News No 07 MARCH 2025

International tax treaties and double taxation challenges

Feliza Bahamonde, Oliver Biernat

02 April 2025

Contact details

Hanauer Landstr. 148a, Frankfurt am Main, Germany
o.biernat@benefitax.de
+49 6925 622 7610