Altorfer Duss & Beilstein

Switzerland

Address:
Walchestrasse 15
8006 Zurich
Switzerland

+41 44 267 63 00





Key contacts:

Partner : Pascal Taddei
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Partner: Fabian Duss
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Partner: Andreas Helbing
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Quick facts:

Number of advisers: 18
Network memberships: 2
Languages: German, English, French, Italian, Spanish


ADB Altorfer Duss & Beilstein is one of the leading tax law firms in Switzerland. Founded in 1954, we offer national and international clients comprehensive consultancy focusing on Swiss and international tax law.

From high net worth individuals to institutional investors. From the SME to the listed company. From incorporation through to succession planning. From the concept through to implementation and its reproduction in tax returns and tax assessments. We provide personal and individually tailored advice in relation to all aspects of life and business decisions with tax implications.

Our services are based on decades of professional experience and are characterised by recognised specialist expertise. With our avocational engagements as lecturers, specialist authors and judges we each provide our own additional contribution to the development of tax law.

Our strength lies in the interdisciplinary approach to tax law in our team of lawyers and economists. Our experienced team of tax experts carefully attends to your interests in all tax matters.

  • Tax structuring (domestic and cross-border)
  • Mergers and acquisitions/tax due diligence
  • Group financing and capital markets
  • Collective investment schemes
  • VAT advice and compliance, incl. customs
  • Transfer Pricing
  • Tax effective supply chain management
  • Individual tax/global mobility
  • Succession planning
  • Tax litigation and penal tax law
  • Tax compliance
  • Social security (domestic and cross-border)
  • Corporate, commercial and contract law

We serve Swiss and foreign clients related to Swiss and international tax and social security questions. In addition, we provide services in selected areas of Swiss business law (corporation law, commercial law, labor law, immigration law, inheritance law).

Corporate tax matters

  • Cross-border project management
  • Restructuring
  • Cost-sharing arrangements
  • APAs
  • Transactions
  • M&A
  • Environmental
  • Financial services
  • Corporate taxes
  • Technology
  • Cryptocurrency
  • Value chains

Dispute resolution

  • Audit defence
  • Audit support
  • Dispute resolution
  • Pre-litigation
  • Litigation
  • Controversy management

Tax advisory

  • Tax consulting
  • International tax advisory

Indirect tax

  • VAT
  • Customs
  • Supply chains

Other 

  • Tax structuring (domestic and cross-border)
  • Tax due diligence
  • Group financing and capital markets
  • Collective investment schemes
  • Transfer Pricing
  • Tax effective supply chain management
  • Individual tax/global mobility
  • Succession planning
  • Tax compliance
  • Social security (domestic and cross-border)
  • Corporate, commercial and contract law

LGT Bank AG
Fabian Duss
Partner
fabian.duss@adb.ch
Global restructuring of group (split-off in three parts). Tax neutral restructuring achieved.

Swiss Re
Fabian Duss
Partner
fabian.duss@adb.ch
Appeal procedure against practice of Swiss tax authorities related to treatment of gains and losses from transactions in own shares. Landmark decision to be expected (first case in Switzerland before courts).

  • Accounting
  • Agriculture
  • Automotive
  • Aviation
  • Banking
  • Construction and materials
  • Consumer goods and services
  • Energy
  • Financial services
  • Food and beverage
  • Forestry
  • Gaming
  • Government and public policy
  • Healthcare
  • Industrials
  • Insurance
  • Investment management
  • Media
  • Mining
  • Natural resources
  • Oil and gas
  • Pharma and life sciences
  • Real estate
  • Shipping
  • Social infrastructure
  • Tech and telecoms
  • Tourism
  • Transport
  • Utilities
  • Other