A particularly complex national tax law that is closely interlinked on an international level requires, as does hardly any other area, professional cooperation and an in-depth, professional exchange. The structures of Sonntag & Partner are precisely oriented towards these demands. We work in a multidisciplinary manner, that is to say, across specialties in expert teams that are individually assembled for every client. On this basis, we succeed in providing detailed consulting and efficient assistance in all questions surrounding tax planning, tax advice, annual financial statements with myriad areas of emphasis, criminal tax law and voluntary declarations, advisory services, valuation projects, employee posting, group tax law and holistic consulting for large clients.

We advise and assist nonprofit organizations and their sponsors with comprehensive legal and tax counsel in the optimal configuration of their institution and ongoing operations. We help our clients in clarifying special questions and support them in monitoring their charitable or commercial objectives.
Business goes global; taxes stay local. We guide domestic companies and private persons in so-called out-bound cases in the planning and tax optimization of their international activities and restructuring, as well as with investments and expansions of their business abro
Individually assembled expert teams support you in planning and drafting a will and inheritance contract, and in questions surrounding inheritance and gift taxes, in the case of company and asset succession, and with regard to all aspects of establishing a foundation.
We support our clients in all matters surrounding the value added tax. We advise you both on possible risks and also with regard to the utilization of tax advantages.


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