Oleg Chayka

Partner, Attorney-at-law
About lawyer

Oleg is a recognized taxation expert in Ukraine and abroad, including tax disputes, transactional and international taxation.


He has worked in senior positions in Canada, Malta and Ukraine for many years, advising on international and national law.


As a leading expert on taxation, Oleg has participated in landmark cases resolved in international arbitration courts.

  • Experience

    • Oleg has unique experience in advising on international and national taxation as well as supporting clients and projects in Canada, Malta, and Ukraine.


    • In Canada, Oleg worked for many years in KPMG's International Taxation Division in Canada, where he developed and implemented effective international taxation solutions, participated in creating effective mechanisms for repatriating foreign income to Canada and financing foreign companies and business projects, prepared and audited corporate and personal tax returns, handled issues of income taxation of controlled foreign corporations (CFCs) in Canada, and provided advice on corporate and personal taxation.


    • Oleg worked in KPMG's International Taxation Department in Malta, where he studied the tax laws of the EU and EU member states and was also engaged in tax structuring of business groups and their operations as well as attracting business from Ukraine, the Russian Federation and other CIS countries to Malta.


    In Ukraine, Oleg headed KPMG's transactional and international taxation practices in Ukraine and was Partner and Head of Tax at JURIMEX Law Firm. Oleg was involved in tax planning and structuring of investments in Ukraine and from Ukraine, analysis of the tax status of Ukrainian companies, repatriation of income and profits from Ukraine, corporate reorganizations, business project financing as well as tax disputes

  • Education

    Kyiv Institute of International Relations (Ukraine)

    ESC CERAM Business School (now SKEMA) (France)

    Canadian Institute of Certified Public Accountants (CICA) (Canada)

  • Public activity

    He was elected Co-Chairman of the Tax Committee of the American Chamber of Commerce in Ukraine 9 times in a row.


    Member of the working groups of the Parliament of Ukraine on tax reform issues.

  • Recognition & Awards

    Leading expert on transactional taxation in Ukraine, The Legal 500 (2018)

    One of the best lawyers in tax disputes in Malta (2019) and Ukraine (2020) according to the international Tax Controversy Guide (from World Tax and International Tax Review)

  • Membership in organizations

    Kyiv Bar

  • Languages

    English, Ukrainian, French,