Start and manage your Swiss business with confidence.
GVSTAX supports international professionals, entrepreneurs and businesses with Swiss company formation, tax, accounting and international tax matters.
From company setup and domicile in Zug to tax declarations, bookkeeping and cross-border planning, we help you structure the details correctly from the beginning.
Olesea Mehr-Cossa, LL.M. is the Founder and Managing Director of GVSTAX, with more than 10 years of international tax and advisory experience, including Big Four experience, across Swiss, Luxembourg and cross-border matters.
She is an EXPERTsuisse Expert Member, a RAB/ASR-approved auditor in Switzerland, and holds an LL.M. in International and European Tax Law from Maastricht University.
Her approach is structured, confidential and practical — helping clients navigate complex tax, accounting and cross-border matters with clarity and confidence.
Connect via LinkedIn
