Regina Ortmann named Professor of Business Administration specializing in Business Taxation

The following text has been machine translated from the German with no human editing.

The European Union and several other countries have increased tax reporting requirements for companies in recent years as part of various transparency initiatives. The aim was to curb profit shifting by multinational corporations. Regina Ortmann has devoted herself particularly to the topic of the influence of tax transparency on multinational corporations as a ‘Principal Investigator’ and ‘Research Fellow’ within the Transregio collaborative research centre ‘Accounting for Transparency’ (TRR 266). In doing so, she primarily employs analytical and model-theoretical research methods.

Regina Ortmann aims to further expand the field of international taxation at Saarland University and to investigate the consequences of increased tax transparency in the EU. Specifically, she intends to examine the consequences of the reporting obligation for cross-border tax planning (DAC 6) on companies and tax authorities. Furthermore, Regina Ortmann aims to further strengthen Saarland University as a leading centre for training students in the field of Business Taxation and as a driving force for exchange between academia, business and politics in the region. A key component of this is her planned involvement in the Institute for Empirical Economic Research. She also aims to establish close cooperation in research and teaching with the chairs of Business

Administration, specialising in Financial Controlling; Business Administration – Accounting and Finance; and Business Administration – Auditing, held by Professors Alexander Baumeister, Alois Knobloch and Michael Olbrich.

In terms of teaching, Professor Regina Ortmann has previously held posts at the universities of Paderborn, Bielefeld and Cottbus. There, she taught numerous courses both in the core area of taxation and in related disciplines such as Financial Controlling and Financial Auditing. Her teaching approach is interdisciplinary: she attaches great importance to examining topics from different disciplinary perspectives in order to make complex interrelationships easier to understand. In 2019, she was awarded the Teaching Prize of the Faculty of Business Science and Economics at the University of Paderborn in recognition of her outstanding commitment. Since 2018, she has also been a lecturer on the LL.M. Corporate Tax Law continuing education programme at the University of Cologne. Regina Ortmann will take up her professorship at Saarland University on 1 May 2026.

Short biography

Regina Ortmann studied Business Administration at the University of Paderborn and subsequently obtained her PhD from the Vienna University of Economics and Business as part of the interdisciplinary Doctoral Programme for International Business Taxation (DIBT). She then served as a junior professor of International Corporate Taxation at the University of Paderborn.

During her PhD and postdoctoral research, she undertook research visits to renowned international institutions: Stanford Graduate School of Business (USA), the Norwegian School of Economics (NHH) and UNC Kenan-Flagler Business School at Chapel Hill (USA). Most recently, she was Professor of Business Taxation and Financial Controlling at Bielefeld University. From 2019 to 2023, she was also Principal Investigator in the Transregional Collaborative Research Centre “Accounting for Transparency” (TRR 266), in which over a hundred researchers from various universities are involved.