Company name TREUHAND-UNION Österreich GmbH
Products and services Coordination of consulting and tax advice, auditing, investment consulting, fiduciary services, accounting and payroll accounting.
Head office Gonzagagasse 13, 1010 Wien
Registration number FN278608v
Competent court Commercial court Wien
Supervisory authority Chamber of commerce
Telephone +43 1 5338832
Fax +43 1 5338832 14
DPR 080 15 77
Content Mag. Harald Czajka

Please note that all information made available on this website is general. It is our endeavor to ensure their correctness, however, in your own interest we ask you to take no decisions without further consultation. Despite careful editing, all data has been included without warranty. Any liability of the authors and/or of the TREUHAND-UNION is explicitly excluded.

Bear in mind that the subject matters dealt with, are complex and difficult legal issues, which are subject to continuous change, legislative changes as well as changes of administrative practice and judicature.

All contents published on this website are placed under the protection of the Austrian, respectively international copyright law. All other rights, in particular the right of reproduction and distribution as well as translation are reserved. Contents may be copied only after prior authorization in writing by the TREUHAND-UNION and with acknowledgement of the source.


The name TREUHAND-UNION refers to the one or more firms of the TREUHAND-UNION group, companies with a group member or partner agreement with the TREUHAND-UNION Österreich GmbH. Each member firm or partner firm is a separate legal entity and cannot impose any obligations upon another firm. Neither the TREUHAND-UNION Österreich GmbH nor the group members or partners are liable for another partner’s or member’s acts or omissions.

The brand TREUHAND-UNION stands for committed employees in independent firms that work together throughout Austria in order to offer their clients a comprehensive portfolio of service expertise in the core areas of tax consultancy, auditing and management consulting. The TREUHAND-UNION Österreich GmbH assists in coordinating the cooperation of the member and partner firms, but is no service provider itself.

The TREUHAND-UNION Österreich GmbH is an independent member of NEXIA International. The TREUHAND-UNION Österreich GmbH as well as the TREUHAND-UNION member and partner firms do not form an association with NEXIA International or any of the NEXIA members. Also not in form of a civil law association. Furthermore, we do not act as their representatives or agents. Neither the TREUHAND-UNION Österreich GmbH nor the group members or partners are liable for acts or omissions of other NEXIA members.

Terms used automatically imply equal treatment for both male and female.

Data protection declaration

This website uses Google Analytics, a web analysis service of Google Inc (“Google”). Google Analytics utilizes so-called Cookies, text files which are stored on your computer and which allows an analysis of the use of the website by you. The information generated by the cookie concerning your use of this website (including your IP address) will be passed on to and stored on a server of Google in the USA. Google will use this information to evaluate your use of the website, to produce reports on website activities for their website operators and providing other services related to website activity and Internet usage. Google will also transfer this data to third parties if necessary, provided that this is legally mandated or insofar as third parties have been commissioned by Google to process this data. Google will not use your IP address in connection with other Google data. you can avoid the installation of Cookies by appropriately adjusting your browser software. We would like to make you aware oft he fact, that in this case it is possible that you will not be able to use all the functions of this website. Through the use of this website, you express your consent to the processing of data collected by Google about you in the manner described above and fort he purposes previously mentioned.


TREUHAND-UNION Österreich GmbH is a member firm of the “Nexia International” network. Nexia International is a leading worldwide network of independent accounting and consulting firms, providing a comprehensive portfolio of audit, accountancy, tax and advisory services.

“Nexia International” also refers to the trading name of Nexia International Limited, a company registered in the Isle of Man, which operates the Nexia International network. Company registration number: 53513C. Registered office: 1st floor, Sixty Circular Road, Douglas, Isle of Man, IM1 1SA. Nexia International Limited does not deliver services in its own name or otherwise. Nexia International Limited and the member firms of the Nexia International network (including those members which trade under a name which includes the word NEXIA) are not part of a worldwide partnership. Nexia International Limited does not accept any responsibility for the commission of any act, or omission to act by, or the liabilities of, any of its members. Each member firm within the Nexia International network is a separate legal entity.

Nexia International Limited does not accept liability for any loss arising from any action taken, or omission, on the basis of the content on this website or any documentation and external links provided. The trade marks NEXIA INTERNATIONAL, NEXIA and the NEXIA logo are owned by Nexia International Limited and used under licence. References to Nexia or Nexia International are to Nexia International Limited or to the “Nexia International” network of firms, as the context may dictate.