T+R AG

Clear structures lead
straight to the goal.

Tax Consulting

Persons to contact:

Photo of Martin Roethlisberger

Martin Roethlisberger

  • Attorney-at-Law
  • Swiss Certified Tax Expert
  • Partner, Member of the Management Committee
  • Head of the Tax Consulting Division

Contact
Telephone: 031 950 09 19

martin.roethlisberger(at)t-r.ch

more Information

Photo of Martin Roethlisberger

Career

2004-2005 Activity in a law office with main focus on commercial law
2006-2013 Tax and legal consultancy with an international tax and audit company in Berne with main focus on consultancy on behalf of individuals and companies in the field of direct taxation; graduation Swiss Certified Tax Expert in 2010
2013 Joined T+R Ltd.
Director
2016 Partner and Member of the Board of Directors
2018 Member of the Management Committee
Head of the Tax Consulting Division


Industry experience

  • Industry
  • Trade
  • Services
Photo of Thomas Kunz

Thomas Kunz

  • Swiss Certified Tax Expert
  • Swiss Certified Controller SIB
  • Partner, Member of the Board of Directors

Contact
Telephone: 031 950 09 41

thomas.kunz(at)t-r.ch

more Information

Photo of Thomas Kunz

Career

1980–1987 Tax expert with Berne Cantonal Tax Administration
1987–2004 Tax consultant, partner at an international audit company in Berne
2004 Joined T+R Ltd., Partner
2010 Member of the Board of Directors


  • Member of the tax expertise centre of EXPERTsuisse, Berne Section
  • Lecturer at many professional events
  • Publicist on tax matters in professional journals and in the press

Industry experience

  • Pharmaceutical industry
  • Insurance
  • Food industry
  • Public authorities
Photo of Daniel Leuenberger

Daniel Leuenberger

  • Swiss Certified Accountant
  • Bachelor of Science in Business Administration
  • Partner, Chairman of the Board of Directors

Contact
Telephone: 031 950 09 50

daniel.leuenberger(at)t-r.ch

more Information

Photo of Daniel Leuenberger

Career

1991–1995 Auditor in a major consultancy company
Qualification as graduate auditor
1996–1999 Tax consultant in a major consultancy business
Course to qualify as graduate tax expert
1999 Joined T+R Ltd.
2001–2018 Head of Tax Consulting Division
2001 Partner and Member of the Board of Directors
2006–2018 Member of the Management Committee
2010–2018 Chairman of the Management Committee
2015 Member of the Board of Directors
2018 Chairman of the Board of Directors


  • Lecturer and speaker at various institutions and professional events
  • Publicist on value added tax matters

Industry experience

  • Industry
  • Trade
  • Services
  • Local authorities and NPOs
  • Value added tax on restructuring transactions
Photo of Susanne Gantenbein

Susanne Gantenbein

  • Attorney-at-Law
  • Swiss Certified Tax Expert
  • Director

Contact
Telephone: 031 950 09 17

susanne.gantenbein(at)t-r.ch

more Information

Photo of Susanne Gantenbein

Career

1997-1999 Legal consultant at a health insurance company in Zurich
1999-2002 Tax consultant at an international audit and business consulting company in Berne
2002-2017 Partner at an international audit and business consulting company in Berne and Geneva
2017 Joined T+R Ltd.
Director


  • Lecturer at various institutions and speaker at tax events
  • Author of tax publications, mainly on VAT topics

Industry experience

  • Significant advisory experience particularly in indirect tax matters in a wide range of industries, including real estate and construction, manufacturing and trade and services
Photo of Makedon Jenni

Makedon Jenni

  • lic.rer.pol.
  • Master of Advanced Studies in Accounting & Finance
  • Member of EXPERTsuisse VAT subcommittee
  • Director

Contact
Telephone: 031 950 09 24

makedon.jenni(at)t-r.ch

more Information

Photo of Makedon Jenni

Career

1994-1999 Scientific employee of Federal tax administration, VAT division, Berne
1999-2004 Tax consultant in a major consultancy business, specialising in value added tax, Berne
2004-2007 Executive Partner of a company specialising in value added tax advice, Berne
2008 Joined T+R Ltd.
Director
2011 Head of value added tax consultancy
2015 Member of the VAT competence center of EXPERTsuisse


  • Lecturer and speaker at various institutions and professional events
  • Publicist on value added tax matters

Industry experience

  • Industry
  • Trade
  • Services
  • NPOs, including sport, culture and healthcare
  • Value added tax on restructuring transactions 
Photo of Mathias Josi

Mathias Josi

  • Attorney-at-Law
  • Swiss Certified Tax Expert
  • Director

Contact
Telephone: 031 950 09 52

mathias.josi(at)t-r.ch

more Information

Photo of Mathias Josi

Career

1996-2004 Tax and legal consultancy with an international tax and audit company in Berne/Zurich, with the emphasis on international tax law
2004 Activity in a law office specialising in economic matters Berne/Zurich
2004–2007 Tax and legal consultancy with a local tax and audit company in Berne
2007 Joined T+R Ltd.
Director

Industry experience

  • Trade
  • Services
  • Industry
Photo of Marc Thomet

Marc Thomet

  • VAT expert/Specialist in customs matters
  • Fiduciary with swiss examination
  • Director

Contact
Telephone: 031 950 09 84

marc.thomet(at)t-r.ch

more Information

Photo of Marc Thomet

Career

1981–1988 Inspector with the Federal tax administration / VAT (indirect tax)
1988–2010 VAT adviser, partner with a tax and audit company (Big 4) in Berne (5 years as Partner)
2011 Joined T+R Ltd.
Director


  • Lecturer and speaker at various institutions and professional events
  • Publicist on value added tax matters

Industry experience

  • Trade (wholesale and retail trade)
  • Services and industry
  • Import and export (incl. chain transactions)
  • Intra community transactions (incl. chain transactions)
  • Real estate (incl. construction)
  • Rental/leasing 
  • Public transport
  • International and national transport
  • Repair and maintenance work in an international context
  • Toll manufacturing
  • Other indirect charges (VOC, vehicle tax, fuel duty a.s.o.)
  • International trade of electricity
  • VAT tax representation for foreign companies with activities in Switzerland
Photo of Christa Niklaus

Christa Niklaus

  • Attorney-at-Law
  • Qualified tax consultant
  • Manager

Contact
Telephone: 031 950 09 49

christa.niklaus(at)t-r.ch

more Information

Photo of Christa Niklaus
Photo of Fabienne Ryser (-Wittwer)

Fabienne Ryser (-Wittwer)

  • MAS FH in Value added Tax 
  • CAS FH in customs legislation
  • Bachelor of Business Law
  • Manager

Contact
Telephone: 031 950 09 22

fabienne.ryser(at)t-r.ch

more Information

Photo of Fabienne Ryser (-Wittwer)

Career

2008–2012 VAT consultant in an international consultancy company in Berne
2012 Joined T+R Ltd.
Manager
2017 Graduation CAS FH in customs legislation


  • Lecturer and speaker at various institutions and professional events

Industry experience

  • Trade (wholesale and retail trade)
  • Services
  • Industry
  • Import and export (chain and serial transactions)
  • EU transactions including serial business
  • VAT tax representation for foreign companies with activities in Switzerland
Photo of Philipp Beck

Philipp Beck

  • Fiduciary with swiss examination
  • Assistant Manager

Contact

Telephone: 031 950 09 32

E-Mail: philipp.beck(at)t-r.ch



Photo of Markus de Jeso

Markus de Jeso

  • Tax Consultant with Postgraduate Diploma of Higher Education
  • Assistant Manager

Contact

Telephone: 031 950 09 96

E-Mail: markus.dejeso(at)t-r.ch



Photo of Nicole Siegenthaler (-Stulz)

Nicole Siegenthaler (-Stulz)

  • Swiss certified specialist for finance and accounting
  • Assistant Manager

Contact

Telephone: 031 950 09 55

E-Mail: nicole.siegenthaler(at)t-r.ch



Photo of Tanja Duncker

Tanja Duncker

  • Consultant in taxes

Contact

Telephone: 031 950 09 37

E-Mail: tanja.duncker(at)t-r.ch



Photo of Aduana Predescu

Aduana Predescu

  • Consultant in taxes

Contact

Telephone: 031 950 09 59

E-Mail: aduana.predescu(at)t-r.ch