TREUHAND UNION GmbH Wirtschaftsprüfungsgesellschaft Steuerberatungsgesellschaft

Managing Director

Ingrid Mayerhanser-Marx, German Public Auditor and Tax Consultant
Werner Schmid, German Public Auditor, Certified Public Accountant (USA) and Tax Consultant

Registry Court
Munich Local Court
HRB 56493

Registered office of the company

Paul-Heyse-Strasse 28
80336 Munich

Contact details

Tel: 089 – 599 086 – 0
Fax: 089 – 599 086 – 66

Supervisory authority

Chamber of Public Auditors (WPK), Rauchstrasse 26, 10787 Berlin, email address:
Munich Chamber of Tax Consultants, Nederlingerstr. 9, 80638 Munich, e-mail address:

Professional regulations

Auditor’s Code
Professional Statutes for Auditors/Sworn Auditors
Statutes for quality control
Seal Ordinance
Tax Consultancy Act
Tax Consultant Remuneration Ordinance


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Concept and design

Bibo Nikol, Wiede-Fabrik, Rambaldistr. 37, 81929 Munich, Germany

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