Tax Advice for Private Clients
Individuals are facing ever greater tax requirements. We have the necessary expertise to guide you on your journey.

Holistic tax advice for Private Clients
People's lives are becoming increasingly global. Careers take one all over the world; at the same time, it is necessary to invest assets across all asset classes and across jurisdictions. Tax procedures may end careers as a result of their publicity.
We possess the necessary expertise in German and international tax law to meet the complex demands of your life and your family’s interests—regardless of the asset class or jurisdiction. Ideally, disputes with tax authorities are avoided from the outset. However, should they arise, we support you with our extensive experience in tax litigation, aiming for an efficient and favorable resolution.
Advice across all asset classes
Regardless of jurisdiction, it is necessary to invest assets as diversified as possible. We have experience with all asset classes:
- Securities: All types of (international) securities, in particular in the German tax classification and the use of losses
- Private Equity and Private Debt: In-depth knowledge of private equity and private debt funds, from loss utilization to tax deposit accounts to withholding taxes
- Precious Metals and Commodities: Precious metals such as gold or silver
- Crypto: Taxation of crypto assets — we advise you on the ideal tracking solution, tax exemption of profits and use of losses
- Special Topics: We are also aware of more specific topics, such as agricultural investments such as forestry in other countries in Germany and Europe
International advice for private individuals
We have many years of experience with international issues.
Our services:
- Classification: Classification and recording of international issues for German tax purposes
- Tax Returns: Illustration in the tax return and advice on double taxation agreements and crediting foreign tax
- Setup: Advice on setting up international structures, in particular in jurisdictions attractive to entrepreneurs (USA, United Arab Emirates, Cyprus, Italy, Switzerland, etc.)
- Exit tax: Advice on the so-called German “Wegzugssteuer” - from calculation to submission of necessary declarations
- Trusts and Foundations: Experience with typical international succession planning vehicles (e.g. Liechtenstein and Emirati family foundations or Anglo-American trusts)
- Network: Reliable relationships with and experience working with international consultants
Holdings | Family Offices
Wealthy individuals are faced with the choice of whether they want to hold their assets through a holding company or even establish a family office. This is not purely a tax issue - but we are happy to contribute our tax expertise to this decision-making process. We are familiar with current legal forms and also foreign jurisdictions (USA, UAE, UK, Switzerland, EU member states such as Cyprus).
Our services:
- Concept: Development of a concept with other consultants in which corporate and tax law are coordinated
- Founding: Tax support for incorporation in Germany or abroad
- Tax Compliance: Development of tax compliance systems
Tax Disputes and White Collar Defense
Tax disputes and criminal tax law proceedings have been the focus of public attention for years. Regardless of the presumption of innocence, these are a significant burden for the persons concerned and can end careers. Our approach is designed to prevent this from happening in the first place. If there is still a dispute or if criminal tax proceedings have even already been initiated, we will take care of the tax proceedings and, if necessary, work with your defense attorney to represent your interests:
- Representation: Representation in appeal and tax court proceedings before the tax office or the tax court or the Federal Fiscal Court
- Tax Audits: Supervision of tax audits
- Criminal tax law: Support in criminal tax proceedings through our tax expertise, in particular with international issues or complex tax issues
- Voluntary Self-Disclosure: Preparation of Self-Disclosures


Your contacts
Please reach out in case you have any questions.

Marius Siemen
Marius Siemen advises on all aspects of German and international tax law. His work focuses in particular on the global investments of institutional investors and private clients across all asset classes. He has extensive experience with projects involving German investors in the United States as well as in the Asia‑Pacific region. Another key area of his practice is the representation of clients in tax disputes: from tax audits to administrative appeals and litigation, as well as the support of clients in criminal tax proceedings.

Lukas Conrady
Lukas Conrady advises investors, corporations, entrepreneurs, startups, and private clients on matters of national and international taxation. A key focus of his work lies in ongoing tax compliance—particularly the preparation of annual financial statements and tax returns, as well as the support of tax audits, including administrative appeal proceedings. He has in‑depth expertise in M&A, private equity, and real estate transactions, assisting clients with tax due diligence and the tax implementation of subsequent reorganizations. In addition, he advises on the taxation of crypto assets, including the classification and reporting of trading, staking, and lending activities.

