MDDP Tax Advisory Company

We are the most successful independent Polish advisory firm, operating on the market since 2004.

Our team comprises over 150 experts in VAT, duties, income taxes, transfer pricing, international taxes, local taxes, tax and court proceedings as well as customs and excise. We conduct innovative, pioneering tax cases and projects in Poland.

We are involved in issues we consider important – we actively participate in consultations of draft legislation; we are experts for the European Commission, business organisations and trade associations. Our experts have authored a number of books and articles in professional publications.  As lecturers, partners of student associations but also organisers of academic competitions, we are committed to the education of young lawyers and economists.

Areas of tax advisory services provided by us

Rankings and honours

World Tax and World Transfer Pricing

Leading Advisory Firm in Poland

European Tax Awards (International Tax Review)

  • Indirect Tax Practice Leader of the Year.
  • Best Tax Advisory Firm in Poland.
  • Best Transfer Pricing Advisory Firm in Poland.

Tax Transactional (International Tax Review)

Transactional Advisory Market Leader

Chambers and Partners, Legal 500, Global Law Experts, Practical Law Company, Lawyer Monthly

Leading Tax Advisory Firm

International Tax Review

Best VAT Experts - individual awards for VAT practice partners
Top Woman in Real Estate
individual distinction for leader in Tax & Accounting Services category.

The Rzeczpospolita Ranking of Tax Advisory Firms

  • Best experts in the following categories: Tax Proceedings; International Tax Law.
  • an award for support in a prestigious transaction for a real estate client.
  • the most innovative tax firm - VATcheck, NIPcheck, SAFETYcheck and MDRcheck applications.
  • distinction for the "Smart.TP" application in the "Innovation" category.

The Dziennik Gazeta Prawna Ranking and The Rzeczpospolita Ranking

distinction for cases conducted before domestic courts and CJEU.

The Rzeczpospolita Ranking of Tax Advisory Firms The Dziennik Gazeta Prawna Ranking and Forbes Ranking

fifth place in the largest tax advisory firms category individual distinctions for MDDP partners.
Top Brand 2021
As the only Polish company we were deemed one of the 10 leading advisory firms.
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Our clients’ opinions

About MDDP Group

One of the largest independent consulting companies in Poland with an established position on the Polish and international market since 2004.

We provide comprehensive services advisory services, tailored to individual needs of our clients. We combine technology with a pro-active business approach.

Our team of nearly 450 consultants includes tax advisors and legal counsels and have gained experience in renowned consulting companies and leading Polish enterprises.

Our experts hold MBA, CIMA, ACCA and CIA certificates.

We have many years of experience in managing challenging tax and legal projects.

Our portfolio of clients comprises the largest Fortune Global 500 and Rzeczpospolita 500 companies as well as family businesses and SMEs.

Tax Advisory Services

We advise clients on effective tax solutions. Our experts combine international experience and top standards with practical knowledge of taxes and complex economic realities. This enables us to create comprehensive pioneering solutions tailored to our clients’ needs.

Knowledge platform

We provide practical knowledge in the form of top-quality business events, training courses, workshops and webinars, as well as tax and legal publications. Our trainings are conducted by experienced experts awarded both in Poland and abroad.

Corporate Finance

We support our clients by providing financial advisory services. We offer assistance in investment processes, financial modelling and analysis. We specialise in providing financial advisory services to companies, investment funds and individuals.

Legal advisory

In cooperation with Osborne Clarke – one of the world’s biggest law firms – we offer comprehensive legal support required to run the business safely and effectively. We combine expert knowledge with an in-depth understanding of the regulatory environment and business realities – both on the domestic market and in the international scale. Thanks to access to the global know-how and expertise of Osborne Clarke lawyers, we ensure the highest quality of legal services.

Our values

Today, more than ever before, we are reminded of how important values are in informing our practice. What we believe, who and what we are prepared to stand up for, what we consider reasonable, right and proper – these are the strands that are woven into our value system. They guide our decisions and have served us well at MDDP for nearly 20 years now. We want to share them with the wider community and wish for everyone to share them again.


Quality in everything we do is our priority. Our experience helps us see things from different perspectives. Everyday practice teaches that the fine detail matters.


We have only utmost respect for all people – for one another, our clients, students, for our vendors and business partners. And for our competitors.


Trust is the foundation of a successful business today. This applies internally and in the business community at large. We can see it translated into long-term relationships which we build with our clients.


We join efforts and share ideas because cooperation works better. Synergy, joint search for optimal solutions, knowledge sharing – these are the tools of our trade.

Daring and innovation

We take on pioneering projects, often crossing conventional boundaries. We bring creativity to reality, which we actively shape.

Feel free to contact us

Barbara Lenarcik

Business Development and Marketing Director
M: (+48) 510 915 615

Dorota Chruściel-Dziekańska

Communication Area Leader
M: (+48) 500 127 570