Our services

Taxation

Taxation is a constantly evolving field, where every decision matters.

At DYN GROUP, we support companies, their shareholders, and individuals in the comprehensive management of their tax matters — from advanced strategic advice to recurring compliance and filing obligations.

Our goal: to turn your tax challenges into real performance drivers, while ensuring accuracy and full compliance with your tax reporting requirements.

Our approach: expertise, strategy, and tailored tax planning

Navigating the Swiss tax system requires a thorough command of the laws and their intricacies.

Our team places the client at the heart of its strategy, combining a human approach with strong technical expertise.

Our experienced tax specialists carry out a dual mission: to provide you with highly specialized tax advice capable of structuring complex transactions, and to ensure flawless compliance with all your tax reporting obligations (direct and indirect taxes, VAT, and pension matters).

Our commitments:

  • Reduce your tax burden in an ethical and sustainable manner
  • Ensure compliance and rigor in meeting tax reporting obligations
  • Identify tax planning levers tailored to your situation
  • Simplify your tax procedures through personalized, clear, and pragmatic support
  • Represent you effectively before the Swiss tax authorities
  • Support you at key moments: reorganizations, acquisitions, succession planning, and tax authority audits
Strategic tax advisory

Our strategic tax advisory service is designed for companies, executives, international groups, shareholders, as well as individuals with significant private wealth who are facing complex tax challenges. Our expertise notably covers legal and tax structuring, M&A transactions, wealth planning, and negotiations with tax authorities.

Key services:
  • Complex tax structuring and analysis (domestic & international)
  • Tax advisory for reorganizations, mergers, acquisitions, and business establishments
  • Drafting and negotiation of tax rulings with federal and cantonal tax authorities across Switzerland (in French and German)
  • Conducting tax due diligence and review of share purchase agreements
  • Drafting and negotiation of objections and appeals before Swiss federal and cantonal tax authorities and administrative courts
  • Tax structuring for groups and their shareholders
  • Support in business succession and transmission
  • Drafting of contracts related to legal or wealth restructuring (loans, transfers, etc.)
  • Post-deal support: integration, tax warranties, internal restructurings
  • Wealth planning for high-net-worth individuals
  • Drafting and negotiation of employee participation and incentive plans
  • Collaboration with lawyers, auditors, notaries, and bankers (one-stop-shop approach)

This service is ideally suited for growing companies, corporate groups, executives requiring premium tax support, or any organization in need of senior-level tax expertise.

Corporate and self-employed taxation

We develop comprehensive tax strategies for companies, self-employed professionals, and international groups.

Our experts help you structure your activities, anticipate risks, and benefit from the most favorable tax conditions possible, while ensuring optimized management and filing of your business taxes.
Key services:

  • Preparation and submission of tax returns and other statutory tax filings
  • Representation and negotiation with tax authorities
  • Drafting of tax rulings
  • Implementation of incentive plans for employees and executives
  • Support in setting up efficient pension and retirement plans

 


Individual taxation
Private individuals, executives, and expatriates benefit from comprehensive support for balanced tax planning and compliance.
We help you anticipate the tax impact of your life choices, career moves, or wealth-related decisions on your personal tax situation and filings.

Key services:

  • Tax returns and comprehensive wealth planning
  • Pension-related optimization (2nd and 3rd pillar)
  • International taxation and cross-border worker support
  • Inheritance and gift tax planning
  • Assistance during tax audits and procedures
  • Advice on real estate acquisition and financing
  • Negotiation of special tax statuses and tailored tax rulings


VAT and indirect taxation

Swiss VAT is a demanding field where a simple mistake can have significant financial consequences.

Our accounting specialists support you in managing your VAT reporting and compliance obligations.

Discover our VAT management services here

A proactive and personalized approach

Chez DYN GROUP, nous vous accompagnons au-delà des obligations fiscales.

Nous vous apportons un conseil clair, précis et confidentiel, intégré à la réalité de votre situation et à vos enjeux financiers et patrimoniaux.

Notre approche repose sur trois piliers :

  • une veille réglementaire constante,
  • la personnalisation du conseil,
  • et l’intégration globale de votre fiscalité dans la stratégie financière de votre entreprise.

Do you have a question ?
Do you need support ?

Your tax advisors

Thomas Genilloud

Partner
Certified Finance and Accounting Specialist (Federal Diploma)
Approved Auditor (ASR)

Sandrine Debétaz

Parter
Certified Tax Expert, specialized in Swiss and international taxation.

Services that make the difference, experts who guarantee them. Discover DYN | Group’s services

Thomas Genilloud
Associate

Specialist in Finance and Accounting with a Federal Diploma Licensed Auditor (ASR)

Biography

Thomas Genilloud has been a partner at DYN since its founding in 2015. Proficient in both taxation and accounting, he enjoys using his skills to assist individuals with complex tax matters as well as providing general business advisory services. He also takes great satisfaction in guiding and advising clients through decision-making processes, particularly in the areas of company creation, legal structuring of assets (holdings), real-estate acquisitions and related financing, as well as all financial and legal matters related to family affairs.

Pragmatic and efficient, Thomas possesses strong analytical, synthesis, and problem-solving abilities. His interpersonal skills and attentive listening make him an excellent advisor.

 

Education

Specialist in Finance and Accounting with a Federal Diploma
Non-certified Tax Expert
Licensed Auditor (ASR)

Languages

French – English

Engagement

Member of FIDUCIAIRE|SUISSE – Vaud Section

Sandrine Debétaz
Associate

Biographie

Sandrine is a Certified Tax Expert specialising in Swiss and international taxation. Her main areas of expertise are corporate and shareholder taxation, as well as SME taxation. She has solid expertise in the legal, economic and tax aspects of mergers and acquisitions (both buy-side and sell-side) and corporate finance, cross-border transactions and restructuring. Sandrine advises all types of companies and non-profit organisations, as well as private clients on their estate planning. Responsive, pragmatic and passionate, she can assist you in all areas of your tax planning.

Education

Swiss Federal Diploma for Tax Expert (Switzerland)
Master in Accounting, Control and Finance, HEC Lausanne (Switzerland)
Master in Management, HEC Lausanne (Switzerland)

Languages

French – English – German

Engagement

OREF, Ordre Romand des experts fiscaux diplômés
ASEFiD, Association Suisse des Experts Fiscaux Diplômés
EXPERTsuisse, Association suisse des experts en audit, fiscalité et fiduciaire
IFA – International Fiscal Association

Listed as one of the “Best tax and fiduciary experts in Switzerland 2025” by the PME & Bilanz newspaper.