Our expertise is built around four Groups:

 

As well as cross-disciplinary practice in:

 

Our interdisciplinary teams work closely to provide comprehensive advice and trusted solutions for our clients’ projects, fully tailored to their specific situations at both the advisory and procedural stages.

TAX GROUP

With over fifty years’ experience, our established Tax Group team assists individual and legal entity clients in all areas of Swiss and international taxation.

Our areas of expertise include direct and indirect taxation of corporations, personal taxation, and consumption and transaction taxes.

With an in-house team including former members of tax authorities and courts, we also partner with a broad network of correspondents in Switzerland and abroad to ensure unrivalled confidence in the international aspects of the cases we manage. This extensive academic involvement of our team guarantees an approach based on the latest field knowledge and legal insight.

Personal tax

Our areas of expertise include:


Corporate tax

We advise our clients in:


Consumption and transaction taxes

We advise companies on the tax aspects of their operations both within Switzerland and abroad, with a specialist focus on:

We have proven expertise in providing VAT assistance to public authorities and academic institutions, including collaboration between authorities and research collaboration, alongside assisting foundations and non-governmental organisations in managing their VAT issues and exemption procedures.

CORPORATE GROUP

For over twenty years, our Commercial Group team has developed a reputation for their expertise across corporate and contract law, and corporate restructuring. Continuously evolving, the team also complements our firm’s specialism in data protection law.

Corporate/M&A and contract law

With proven expertise in corporate and contract law, we advise our clients in:


Distressed company restructuring

Our cross-disciplinary skills enable us to offer specific advice on company turnarounds, including:


Data protection

One of the first law firms in Switzerland to set up a dedicated data protection team, our industry-leading services include:

BANKING GROUP

Our banking and financial law expertise includes:

LITIGATION GROUP

Our Litigation Group assists our institutional and private clients in all civil, administrative, and criminal disputes before the Swiss authorities and courts. Our experts manage complex cases that often have inter-cantonal or international ramifications. They have built a solid network of correspondents in German-speaking Switzerland, Italian-speaking Switzerland, and abroad.

Litigation

Our Litigation team provides clients with strategic advice in the pre-litigation phase, alongside supporting and defending their interests before the authorities and the courts. We are particularly active in the following areas:


White-collar crime and administrative criminal law

White-collar crime and administrative criminal law are among our key practices. Companies and individuals entrust us with their most sensitive cases, where we represent them before cantonal and federal authorities, including the Office of the Attorney General of Switzerland, the Federal Tax Administration, the State Secretariat for Economic Affairs, and the Federal Office of Customs and Border Security. We provide representation for:


Investigations

Our leading investigations practice conducts both internal investigations for private sector players, alongside administrative, disciplinary, and regulatory investigations for public entities. Led by a former federal prosecutor, our Investigations team cooperates with our Banking, Commercial or Tax Group teams depending on client needs and legal contexts.

CROSS-FUNCTIONAL AREAS

Estate planning and Inheritance law

We have extensive experience in inheritance law and family property law in both Swiss and international contexts. We advise private clients on how to structure their assets, and organize their matrimonial and estate planning, to offer them tailored solutions that provide absolute peace of mind. As trusted partners, members of our team are regularly appointed as executors, estate administrators, attorneys in case of incapacity or guardians.

Working closely with our Litigation Group, we also assist and represent our clients in inheritance disputes.

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Immigration 

Our Immigration team houses the specialist skills to manage the obtention of work permits, including those for posted workers, residence permits (including residence on grounds of significant public interest), training permits, and family reunification. We also advise on permit changes in the event of a change of circumstances, as well as on exceptionally serious individual cases. We can assist our clients with the registration procedure for short-term gainful employment, including obtaining or renouncing Swiss nationality, with services also provided for certain foreign nationalities.

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Employment and Pension Law

With extensive interdisciplinary skills, we can assist our clients with all types of employment law, occupational pension schemes, and social security issues, including:


Foundations, Associations and NGOs

Our specialist sector team has extensive experience in the analysis and application of regulations concerning national and international non-profit organisations, associations, and foundations. We offer comprehensive and holistic legal services from setting up their legal structure, legal advice on compliance and facilitating the successful implementation of associative projects, to obtaining tax exemption and organizing VAT affiliation.

With several people in the firm highly active on the boards of foundations and/or tax-exempt associations, we remain in the privileged position of offering their experience at our clients’ disposal.

Art law

We provide cross-sector advice and support to individuals and companies in the field of art law, helping them navigate the complexities of contractual issues (e.g. sale, art-secured loans), tax issues (e.g. classification as an art professional for tax purposes), the transfer of cultural goods, customs duties and VAT (e.g. storage in a bonded warehouse), and civil and criminal litigation.

OA SA
Esplanade de Pont-Rouge 5
1211 Genève 12
T 058 258 88 88
F 058 258 88 89
OA SA
Avenue de la Gare 12A
1003 Lausanne
T 058 258 86 00
F 058 258 86 01
OA SA
Place Pury 3
2000 Neuchâtel
T 058 258 86 00
F 058 258 86 24
OA SA
Place du Midi 29
1951 Sion
T 058 258 86 80
F 058 258 86 89