Department profile
ADB Altorfer Duss & Beilstein AG

Tax

Global Guide 2026 : Switzerland

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ADB Altorfer Duss & Beilstein AG

Rankings

About

Provided by ADB Altorfer Duss & Beilstein AG

We provide personal and individually tailored advice in relation to all aspects of life and business decisions with tax implications.

ADB will act as your partner in all areas of national and international tax law and in bordering issues of business law. The main focus of our work lies in the following activities:

  • Analysis of the tax situation (chances and risks; health checks)
  • Tax planning (concept elaboration including legal implementation)
  • Tax ruling requests; negotiations with the tax authorities
  • Expert opinions (including second opinions)
  • Assistance in tax audits
  • Representation in tax appeals
  • Compliance (tax returns etc.)
  • Value-added tax (VAT) advice and compliance
  • Consulting in cross-border situations

Tax services for companies

We advise our clients, which originate from various sectors, regarding national and international corporate tax law (corporate income and capital taxes, withholding tax, issuance stamp tax and securities transfer tax). Moreover, our services include advice in relation to value-added tax and customs duties. If desired, we will not only prepare tax concepts made to measure for your company, but will also ensure the legal implementation and attend to their operational execution.

Tax services for private individuals

We advise private individuals in all areas of national and international tax law, the law on social security contributions and legal issues arising in the context of tax planning.

Industries (24)

  • Aerospace & Defence
  • Automobiles & Parts
  • Banks
  • Charities/Not for Profit
  • Chemicals
  • Commercial & Professional Services
  • Construction & Materials
  • Energy
  • Financial Services
  • Food & Drinks Producers
  • Health Care
  • Industrial Engineering
  • Insurance
  • Media
  • Mining & Metals
  • Pharmaceuticals & Life Sciences
  • Private Clients/Individuals
  • Real Estate
  • Retail
  • Software & Computer Services
  • Technology/Hardware & Electronics
  • Telecommunications
  • Travel & Leisure
  • Utilities

Chambers Review

Provided by Chambers

Tax - Switzerland

Band 3

What the Team is Known For
ADB Altorfer Duss & Beilstein advises clients on both contentious and non-contentious tax matters. The law firm has experience representing clients in disputes concerning dividends and VAT. In addition, it assists clients with mutual agreement procedures, double tax treaties and disclosure matters. Team members also act for clients on the tax consequences of corporate transactions.
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Strengths

Provided by Chambers

  • ADB convince with their ability to analyse and efficiently solve complex tax issues in a structured, forward-looking manner and with a high level of professional precision.

    Tax respondentGlobal

  • For every specific issue, we have proven experts with in-depth know-how at our side who handle our concerns efficiently and at the highest professional level.

    Tax respondentGlobal

  • We know that we get excellent, reliable advice from ADB that will stand before tax authorities.

    Tax respondentGlobal

  • ADB's approach is pragmatic and in the interest of the long-term goals of our company.

    Tax respondentGlobal

  • ADB approach matters in a smart manner and are able to break them down into more tangible modules, thus making them easier to understand and solve in a pragmatic manner.

    Tax respondentGlobal

Notable Practitioners

Provided by Chambers

  • Pascal Taddei
    Pascal Taddei

    Pascal Taddei

    Pascal Taddei advises clients on contentious tax matters, including disputes relating to VAT, as well as on the tax aspects of corporate transactions.

    • Pascal Taddei has very deep knowledge in tax matters.

      Tax respondentGlobal

    • Pascal Taddei's client service is very reliable. He is committed, attentive and has a noticeable interest in our business.

      Tax respondentGlobal

    • Pascal Taddei is an excellent expert.

      Tax respondentGlobal

    • Even with more complex topics, he brings in-depth expertise, analytical strength and the ability to convey tax matters in a clear and comprehensible way.

      Tax respondentGlobal

    • Pascal Taddei is strong across the board.

      Tax respondentGlobal
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  • Andreas Helbing
    Andreas Helbing

    Andreas Helbing

    Andreas Helbing has a broad tax practice, assisting clients with cross-border matters such as double tax treaties, mutual agreement procedures and self-disclosure.

    • Andreas Helbing's friendly and supportive way of interacting is highly appreciated.

      Tax respondentGlobal
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  • Fabian Duss
    Fabian Duss

    Fabian Duss

    Fabian Duss represents clients in disputes with the Swiss tax authorities and assists with the taxation of dividends. He also acts on the tax consequences of corporate transactions.
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Ranked Individuals at ADB Altorfer Duss & Beilstein AG (3)

Switzerland

Members

Provided by ADB Altorfer Duss & Beilstein AG

ADB Altorfer Duss & Beilstein AG has rankings in the following guides

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