We rely on

LOEBA Treuhand GmbH

is an owner-run, mid-sized practice
that offers
tax advisory and audit services from a single source and,
over the past few decades, has gained a wealth of special expertise
in the area of
cross-border tax matters
in the tri-border region with Switzerland and France.

Your advisors

at Loeba:

Nikola Tenglerová

Tax Advisor

+ 49 (0) 7621 4098-40

At LOEBA since 2017
Preparation of annual financial statements (commercial and tax balance sheets) | Tax support for companies of all corporate forms, predominantly medium-sized businesses | Support for subsidiaries of foreign groups in Germany, contact person for tax-related inquiries in the Czech language

Isabel Stahl

Tax Advisor

+ 49 (0) 7621 4098-65

At LOEBA since 2017 | Employee | Speaker on the topic of turnover tax
National and international turnover tax law | Contact for problems related to the cross-border use of company vehicles | Provision of support services to medium-sized enterprises (annual accounts, tax returns) | Taxation of business premises in Germany and abroad
Provision of tax and business advice to physicians, dentists and practitioners of other healthcare professions

Thomas Graw

German Public Auditor | Tax Advisor

+ 49 (0) 7621 4098-17

At LOEBA since 2010 | Managing Director
Audits of annual and consolidated financial statements of medium-sized enterprises | Audit of non-profit businesses and facilities | Business valuations and the preparation of budgetary accounts | Transaction advice and financial due diligence reviews | Provision of advisory services to small and medium-sized enterprises on commercial matters | Previously employed at the Ernst & Young GmbH Audit Firm, Stuttgart | Member of Wirtschaftsjunioren Hochrhein (a network of young entrepreneurs) | Member of the KIWANIS Club Lörrach | Speaker at Steuerberaterkammer Südbaden (Chamber of Tax Advisors of Southern Baden)

Stephan Karl Schultze

German Public Auditor | Tax Advisor | Lawyer | M.I.Tax

+ 49 (0) 7621 4098-25

At LOEBA since 2006 | Managing Director
Tax consultations (national & international) | Tax-optimised succession arrangements, particularly in family-run businesses | Business acquisitions and sales, including financial due diligence reviews | Tax support during business restructuring | Tax defence advice and support services for voluntary tax disclosures | Deputy Chairman of IHK Hochrhein-Bodensee (Chamber of Commerce) | Member of LIONS Club Lörrach | Speaker on the topic of cross-border tax planning, particularly for Germany – Switzerland

Clemens Schubnell

Tax Advisor

+ 49 (0) 7621 4098-63

At LOEBA since 1987 | Associate Director
Head of financial and payroll accounting | Provision of tax and business advice for SMEs and their owners | Preparation of annual accounts | Provision of tax advisory services for companies of all types and private individuals

Sandra Wagner

Tax Advisor

+ 49 (0) 7621 4098-15

At LOEBA since 1993 | Employee
Provision of support services to partnerships (annual accounts, tax balance sheets) | Tax consultations, preparation of business and private tax returns | Audits of the annual accounts of medium-sized enterprises | Overseeing company audits

Benedikt Walter

Certified Accountant | Tax Advisor

+ 49 (0) 7621 4098-13

At LOEBA since 1990 | Associate Director
Advisory and support services for individuals on specific tax-related questions concerning employment income and investment income | Focus on cross-border commuters and special aspects related to executives | Special aspects concerning payments from Swiss pension funds | Answers to questions concerning the tax repercussions of moving to or out of Germany (D-CH) | Voluntary audits of the annual accounts of small corporations as well as audits within the scope of the Brokers’ and Developers’ Directive (MABV) and the Financial Investment Brokerage Ordinance (FinVermV) | Speaker on the topics of turnover tax and cross-border commuters

Klaus Wasna

German Public Auditor | Tax Advisor | Specialist Advisor for International Tax Law

+ 49 (0) 7621 4098-14

At LOEBA since 1988 | Managing Director
Audits of annual and consolidated financial statements of medium-sized enterprises | Special audits (e.g. audits pursuant to the Renewable Energy Sources Act (EEG) and the Combined Heat and Power Act (KWKG); formation audits) | Transaction advice and financial/tax due diligence | Company valuations | Tax-optimised transfer pricing | Since 2012, legal representative of HLB Deutschland GmbH and contracting partner for the HLB network | Practical experience as a cross-border commuter between Germany and Switzerland

Marc Thoma

Tax Advisor

+ 49 (0) 7621 4098-31

At LOEBA since 2016 | Employee
Audits of annual and consolidated financial statements of medium-sized enterprises

Martin Rau

German Public Auditor | Tax Advisor

+ 49 (0) 7621 4098-33

At LOEBA since 2020 | Employee
Audits of annual and consolidated financial statements of medium-sized enterprises

Thomas Burgert

Tax Advisor

+ 49 (0) 7621 4098-72

At LOEBA since 2018 | Employee
Tax consultations

Our history

at a glance:


The firm is founded by Herbert Harrer and Karl Emil Ebert in Lörrach. The two founding members serve as the firm’s first Managing Directors.


Dr Dietrich Knobbe succeeds Karl Emil Ebert as Managing Director.


Dr Manfred Hauser and Klaus Schneider take over as Members of the Management Board from Herbert Harrer and Dr Dietrich Knobbe.


Hans-Joachim Harrer replaces Klaus Schneider as Managing Director.


Peter Rasmussen joins the Management Board.


LOEBA Treuhand GmbH becomes a 100% subsidiary in the C&L (later PwC) network.


Relocation to larger premises at Wallbrunnstraße 24.


Separation from the PwC network and Klaus Wasna joins the Management Board.


Stephan Karl Schultze is appointed to the Management Board.


Peter Rasmussen retires.


Membership in the international HLB network.


Thomas Graw joins the Management Board.


Dr Manfred Hauser and Hans-Joachim Harrer retire. Ludger Rankers is appointed to the Management Board.


Anja Abril becomes the first woman to join the Management Board of LOEBA Treuhand GmbH.


Anja Abril and Ludger Rankers are withdrawing from the firm.


LOEBA Treuhand GmbH celebrates its 50th anniversary.

Our Advisory Board

is business-oriented
and supports our special focus
on clients with cross-border issues.

Dr Hermann Harrer


Partner at BenderHarrerKrevet, Lörrach-Freiburg-Karlsruhe

Dr Andreas Burckhardt

Chairman of the Board of Directors

Baloise Holding AG, Basel

Christoph Mäder

Head of Legal & Taxes

Syngenta International AG, Basel

Dr Christoph Münzer


WVIB, Freiburg

Dr Manfred Hauser

Former Managing Director

Honorary Member of the Advisory Board, LOEBA Treuhand GmbH, Lörrach

Our Commitment

The big picture

Our social and cultural commitment is a fundamental part of our corporate culture. As a result, we not only feel that we have an obligation to serve our clients but also perceive ourselves as an active member of society.

Fully conscious of our responsibility, we organise and support social and cultural projects at every level.

Funding of the arts

Modern art has been integral to our company for years and is a natural part of both our working environment and our commitment.

Art gives us food for thought and encourages us to take a creative approach to dealing with the world that exists outside our own front doors.

We support art projects of all kinds and offer regular opportunities for artists, predominantly from this region, to present their works within the scope of exhibitions at our firm. All proceeds earned from admission to these exhibitions are donated in full to a social project.

Youth = Future

If we want to safeguard the future, we have to consider our children’s interests first and foremost.

Our commitment to working with children and youth is therefore firmly anchored in our corporate culture as well. Conscious of our special social responsibility, we support and promote numerous individual projects, initiatives and facilities.


If you have any questions or comments, please feel free to contact us by e-mail.
Your questions will then be answered directly by our office staff or forwarded to the relevant contact within the firm.

Please send us an email to:

Wirtschaftsprüfungsgesellschaft Steuerberatungsgesellschaft

Wallbrunnstr. 24
79539 Lörrach

GPS entry
Entrance to the underground car park: Kreuzstr. 2