Meet our team
Bartosz Mroczkowski
Tax Director
Licensed Tax Advisor
Bartosz Mroczkowski is a licensed tax advisor (license number 12804) with 15 years of experience in the field. He specializes in corporate income tax and various tax reliefs. Bartosz provides comprehensive support to clients in tax advisory services, focusing particularly on restructuring transactions, strategic tax planning, and international tax law.
His extensive experience includes due diligence projects and the implementation of tax reliefs, such as those for R&D activities, the IP Box, and new investments. Bartosz is adept at delivering ongoing advisory services in CIT, PIT, VAT, and PCC. He serves companies across various industries, such as IT, medical, construction, real estate, manufacturing, and finance.
In addition to his advisory role, Bartosz Mroczkowski is an active speaker at national congresses and workshops, where he shares his expertise. He is also an author of tax-related articles, contributing to the broader understanding of complex tax issues.
Bartosz graduated in finance and accounting from the Warsaw School of Economics, specializing in tax law.
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Arena Tax Once Again Among Poland’s Leading Tax Advisory Firms – ITR Europe Tax Awards 2026
The nomination received by our Transfer Pricing Team is just one of Arena Tax's achievements this...
Arena Tax Transfer Pricing Team Recognized for Another Consecutive Year with an ITR Europe Tax Awards 2026 Nomination
We are proud to announce that Arena Tax has received a national nomination in the Transfer Pricing...
Arena Advisory is a partner of the ILCA4 Youth European Championship 2025 in Puck
Between 18–25 June 2025, we had the honor of supporting the ILCA4 Youth European Championship,...




