What our Clients say about us

"Deloris has supported me with complecated tax declarations for a number of years. Their service, responsiveness, and commitment has been extraordinary and their professionalism exceptional"


Morten Lammert, Vice Presidence Global Pharma Company

"We have been extremely impressed with the professional services, support & efficiency provided to us by Deloris AG. Frankly, it’s outstanding…relative to other providers we have had experience with in Switzerland. We would highly recommend their services"


Russel Murphy, former HR-Director, Nyrstar Mining

"I find Deloris AG to be the perfect partner to support me with my tax returns and tax related questions in Switzerland. Deloris AG simplified the process for an expat (like me) with their easy-to-understand checklist and friendly service. They are professional, reliable and trustworthy. I wont hesitate to recommend them to colleagues and friends. If you’re an expat and in need of professional support with your taxes in Switzerland, Deloris AG is your best option."


Dr. Willem Lambert Roux, Medical Director Global Pharma company.

"Deloris AG has been supporting me in my tax returns in Switzerland. They have been extremely professional, structured and knowledgeable in their field to render quality service. Was very impressed with their proactive approach to support clients in expediting tax declaration at short notice of 2 or 3 days. Best of all, even last minute changes are well received as they are pretty organised with simplified process to complete the returns swiftly."


Jambunathan Mallik, Sulzer Chemtech Ltd, Singapore

“Using Deloris AG to complete my tax return not only saved me time and money, but the process was incredibly simple. They also managed all my German correspondence with the tax authorities. I would recommend them over any other firm.”


S. Schmid, Schmid Communications, Kenya

„After having moved to Switzerland from Japan, I needed to find someone to help me with my tax return as I felt like in a jungle of tax laws and tax filing obligations. So I contacted Deloris AG. Their assistance was efficient and quick and it was never so easy to comply my tax filing”


Prof. Hans Bjarne Thomsen, University of Zurich

"Our tax declaration was completet for a very fair price and returned within a few days"


Dott. Ing. Alberto Turi, Leading Engineer

"Deloris AG is an excellent advisor and extremely detailed oriented. As an ex-pat I found their integrity and results to be of immense help to me. I would and I will contract Deloris AG in the future."


Daniel Keith Seiter, MBA  IBM