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In tax matters, having a reliable and professional partner is essential.
GVSTAX represents professionalism in Swiss tax & accounting, combining industry expertise with a client-focused approach locally and internationally.
GVSTAX is a Swiss Tax & Accounting firm providing professional, reliable and technically robust support in a local and international highly regulated environment.
We assist businesses and individuals with tax compliance, accounting, and regulatory matters, combining deep expertise with a structured and pragmatic approach.

Company incorporation and domicile (canton Zug), group (re)-structuring advisory and sustainability support.

Comprehensive tax services, tax compliance and advisory, consulting, assisting firms and individuals on tax matters.

Accounting services covering bookkeeping, financial and reporting in an evolving regulated environment.

Assisting firms with the sustainability considerations, regulatory, reporting, and governance aspects.
We are proud serving our clients who are operational in a variety of industries and markets, in Switzerland, Luxembourg, EU.
Ms. MEHR-COSSA, LL.M., Director & Founder at GVSTAX, is qualified Dipl. CPA, Registered Auditor (Revisorin) with Swiss Federal Audit Oversight Authority, and Judicial Sworn Expert at the Courts of Grand Duchy of Luxembourg.
With an extensive experience in the Big Four consulting, the international private sector, and with tax authorities, Ms. MEHR-COSSA, LL.M. leads client engagements with integrity and efficiency, delivering measurable results for the GVSTAX’s valued clients.
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Please complete our request for proposal form.
Discover GVSTAX and our approach to tax, accounting, and regulatory compliance in Switzerland and internationally.
We go beyond conventional solutions, offering a clear, strategic perspective designed to support your business’s long-term success. Through close partnership, we help you navigate complexity with confidence and precision.
Explore our concise insights and gain a fresh perspective on your tax, regulatory, and sustainable business challenges.
Feel free to contact us via WA for any questions requiring a prompt response. We remain available: office@gvstax.ch I +41 767 139 700. GVSTAX I Global VAT & Strategies GmbH CHE-193.484.488 MWST Chamerstrasse 172 I Bahnhofstrasse 10 6300 Zug
GVSTAX I VAT CHE-193.484.488 MWST
Chamerstrasse 172, 6300 Zug Switzerland I Direct Tel : +41 767 139 700 I Email: office@gvstax.ch I www.gvs.tax
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