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What he specialises in

Sergey Pepeliaev has over 35 years' hands-on experience of dealing with corporate and personal taxation issues. He has resolved countless challenging situations involving investments and court proceedings.

As a practitioner, he has defended the rights and interests of companies before the Russian Constitutional Court, the Russian Supreme Court, and commercial courts in large-scale and significant court disputes regarding: the legality of additional taxes and fines being assessed; unlawful regulations of the Russian Government, ministries and state authorities being repealed; and unconstitutional provisions of laws being set aside. He has also advised on matters including the taxation of investments, day-to-day business operations, and much more.

A member of the Council for the Development of the Arbitration Process.

His main achievements

  • Over the last several years, our firm's lawyers, under Mr Pepeliaev’s guidance, have helped our clients to save more than USD 8 billion thanks to having successfully settled tax disputes both through court proceedings and out of court. 
  • Mr Pepeliaev has been invited by the State Duma, the Russian Presidential Administration and other governmental authorities to take part in drafting laws, most notably, the Russian Tax Code, the Law on the Olympic Games. 
  • The Constitutional Court also invites him to express his expert opinion on a number of cases.   
  • From 2013 until 2017, he was a member of the Board of the Federal Chamber of Attorneys. From 2007 until 2021, he was a member of the Board of the Moscow Region Chamber of Attorneys.
  • He was awarded a medal “For the Protection of Rights and Freedoms of Citizens” by the Federal Chamber of Attorneys of the Russian Federation, the Fyodor Plevako silver medal and others. He was also awarded a medal of the Ministry of Justice “For Faithfulness to an Attorney’s Duty”, the Gavrila Derzhavin medal of the Ministry of Justice, and a Letter of Gratitude from the Minister of Justice and a Letter of Commendation.
  • The Federal Antimonopoly Service acknowledged him with a letter of commendation for his commitment to the development of knowledge in the sphere of protecting competition, and to commemorate the fifth anniversary of the magazine Competition and Law.

What they say

Headed by Sergey Pepeliaev, the firm has, for over ten years, been acknowledged the leading Russian law firm by independent rating agencies and publications. 

Various sources refer to Mr. Pepeliaev as “the father of Russian tax law”. The international directory Chambers Europe praised Mr Pepeliaev as “the leader setting development trends on the market and playing an active role in developing solutions for clients”.

Publications

27.10.2025
Sergey Sosnovsky Returns to Pepeliaev Group’s Team
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24.10.2025
Pepeliaev Group and Business Russia’s Industrial Closed-End Mutual Investment Funds Subcommittee Have Entered into a Strategic Partnership
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20.10.2025
A Partner from Pepeliaev Group is Heading Up the New Expert Centre of Business Russia
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