LAWYER PROFILE
Andrzej Pośniak

Andrzej Pośniak

Europe 2026

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Ranked in 1 practice area

About

Provided by CMS

Practice Areas

Andrzej Pośniak is Managing Partner at CMS Poland and Head of the Tax Practice in Poland. He also supervises the Tax Practice in CEE and is a Board Member of the global CMS Tax Practice Group. He leads one of the top tax teams in Poland consisting of 10 experts with extensive experience of providing legal and tax advisory services to clients from a range of industries.

Andrzej Pośniak specialises in tax and corporate law, focusing on the tax aspects of JV/consortium structures, international tax and corporate planning and restructuring of multinational companies, as well as M&A transactions. He also advises on transfer pricing, value added tax and corporate income tax matters.

Andrzej is a certified tax advisor and a lawyer with 19 years of experience. He successfully combines legal knowledge gained in Poland and the US (Harvard Law School) with a business education.

Andrzej is the author of a large number of publications focusing on legal-tax issues, and regularly appears as a tax expert on nationwide TV. He also conducts tax seminars, workshops and professional training sessions.

Andrzej’s clients include: Saipem, Techint, International Paper, Pramerica, AIG, Euclid Transactional, mBank S.A. and Aion Bank

Professional Memberships

Polish-qualified tax advisor

Chambers Review

Provided by Chambers

Chambers European Guide

Tax - Poland

Band 4
Band 4

Individual Editorial
Andrzej Pośniak advises clients on the tax structuring of investments and transactions, as well as representing clients in tax litigation.

Strengths

Provided by Chambers

  • Andrzej Pośniak is a wise adviser, not only in purely legal matters but also regarding business growth opportunities.

    TaxChambers European Guide
  • Andrzej is a true leader with excellent knowledge and a broad vision. I highly recommend working with him.

    TaxChambers European Guide

Ranked Individuals at CMS (292)

Austria

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