Author :

Joanna Karczewska

Senior Manager Attorney-at-law, Tax advisor | OW Tax

Joanna specialises in tax law, in particular in tax disputes. She supports clients in tax audits, customs and tax controls, tax proceedings before the National Tax Administration, as well as before administrative courts.

Author :

Karol Niemiec

Senior Manager Tax advisor | OW Tax

Karol specializes in income tax advisory services, particularly in the area of tax planning for mergers and acquisitions. He also develops capital and financial structures (including cross-border ones).

Table of Contents

News 16/04/2026

OW Tax among the top firms in DGP’s 20th Ranking of Tax Advisory Firms and Advisors

The results of the 20th edition of the Ranking of Tax Advisory Firms and Advisors organised by Dziennik Gazeta Prawna are now out, and we are proud to be among those recognised.

In the individual rankings, the following made the podium:

Joanna Karczewska – 3rd place in the Transfer Pricing category,
Karol Niemiec – 3rd place in the CIT category.

In the listings covering firms employing 21 to 50 professionals holding the relevant qualifications, we ranked:

5th in terms of revenue,
11th in terms of the number of professional staff.

We would like to thank Joanna, Karol and the entire OW Tax team for their expert knowledge and commitment, which form the foundation of our shared success. We also thank our clients — your trust is our greatest motivation to continue growing.

Congratulations as well to all the other firms and experts recognised this year!