MDDP

MDDP Michalik Dluska Dziedzic i Partnerzy is Poland's largest and most reputable independent tax consulting firm, founded in 2004 and headquartered in Warsaw, Poland, with multiple offices in the city center. MDDP offers comprehensive tax compliance and regulatory reporting services including corporate income tax compliance, VAT compliance and reporting, JPK and SAF-T reporting, KSeF e-invoicing compliance and advisory, transfer pricing documentation including local file and master file preparation, international tax structuring, and tax due diligence. The firm serves a diverse client base including Fortune 500 multinationals, medium enterprises, and private equity funds operating in Poland.

The firm is privately held and employs nearly 200 experts including tax advisors, attorneys, and economists specializing in VAT, income taxes, transfer pricing, international taxes, local taxes, tax and court proceedings, and customs and excise duties. The firm also provides accounting and payroll outsourcing services including bookkeeping, financial statements preparation, payroll processing, and HR administration. The firm publishes the annual Tax Hit List and Polish Tax in 2026 report on digital tax compliance, demonstrating thought leadership in the Polish tax market.

MDDP has been consistently ranked among Poland's leading tax advisory firms by Dziennik Gazeta Prawna and other independent rankings. The firm operates a 360-degree advisory model, providing comprehensive tax, legal, accounting, and payroll outsourcing services to multinational corporations, capital groups, and Polish enterprises. MDDP advises clients across real estate, renewable energy, manufacturing, financial services, technology, and consumer goods sectors. MDDP experts serve as European Commission consultants and actively participate in legislative consultations.