“For me, sustainable consulting success is the result of trusting cooperation, high commitment and exchange at eye level.”


Klaus Koschella

Klaus Koschella

Graduate Business Administration
Tax consultant, legal counsel

Sustainability means that decisions for a successful future have to be made today. Bookkeeping is an important control tool for self-employed, small and medium-sized companies. It is most effective when it is complete and timely. Digital media make this possible quickly and easily today.

Advice at eye level

Klaus Koschella follows a clear approach in his work. First understand the personal environment and the relevant circumstances of the client in order to then jointly develop a strategy for the sustainable realization of the individual goals.

Make the difference

As a client, you benefit from many years of expertise as an entrepreneur, tax consultant and legal advisor. Together with a highly motivated team, solutions are implemented that have a lasting effect, for example in the form of more profit for you and your company.


Business Administration at the University of Göttingen, with a focus on: Commercial and tax law

    Professional experience

    • Many years of management of his own tax office
    • Over 37 years of experience in tax and legal advice

    Focus areas

    • Tax advice for medium-sized clients of all branches of industry and legal forms
    • Tax advice in house and real estate matters
    • Liberal professions e.g. doctors

    Contact me!

    Do you have a concern or questions?
    I would be happy to be of service!

    Give me a call at +49 (0) 561 - 94936-0, send an e-mail to mail@jakob-sozien.de or use our contact form zur to schedule an appointment.