Tax Law
OUR CLIENTS
Today we are working on projects for more than 400 active clients
28
years іn the market
40+
attorneys and lawyers
400+
clients regularly serviced
1000+
court hearings annually
Reliability
We provide assistance by:
- Helping at any stage of the project.
- Discussing the task with you, analyzing all prospects and risks.
- Thorough studying of the problem, taking into account the special aspects of your business activities.
- Developing a strategy, suggesting solutions and action plan.
“The success of our firm results from the professionalism and expertise of our team”
Roman Marchenko, Senior Partner
Team
Leading experts
-
Mikhail I. Ilyashev
Attorney at Law, Managing Partner, Honored Lawyer of Ukraine
One of the most famous attorneys in Ukraine. Head of Corporate and M&A Practice.
More -
Roman V. Marchenko
Attorney at Law, Senior Partner, Honored Lawyer of Ukraine
Leading Ukrainian attorney. Head of International Arbitration.
More -
Alina M. Borovets
Attorney at Law
Advises on antitrust and competition matters, defends clients in commercial, civil and administrative disputes.
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Dmytro V. Lazebnyi
Attorney at Law
One of the most valued attorneys in dispute resolution, who brings extensive experience in tax litigation.
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Ivan O. Maryniuk
Lawyer, Head of Tax Law Practice
Specializes on international tax planning of investment activities in Ukraine and abroad, structuring of transactions, individual and corporate taxation.
More - All lawyers
TRUST IN THE COMPANY
Our cases
Advising Ukrainian Red Cross Society on the legal regulation of the Mobile Health Units Program
Result
Development of the legal mechanism of work, step-by-step instructions and accompanying legal documents for implementing the Mobile Health Units Program, including the method of involving medical personnel in the provision of medical assistance; the method of medicines procurement and the scheme of their transfer; patient data collection, storage and processing.
The first in Ukraine release of a vessel against the British P&I Club’s undertaking
Result
The precedent in the Ukrainian law enforcement practice was established in the interests of CHALLENGE SHIPPING LTD, the owner of the bulk carrier New Challenge, detained at the Port of Mykolaiv in connection with an incident taking place during cargo operations. The team of Odesa Office of Ilyashev & Partners has secured the acceptance by the State Ecological Inspection of Ukraine of the P&I club’s letter of undertaking as a sufficient and only security in respect of the maritime claim.
Lifting the unlawful financial burden imposed on green energy companies
Result
As a result of a two-year legal dispute were recognized as unlawful and invalid the amendments to the formula approved by the National Commission for State Regulation in the Spheres of Energy and Utilities, which obliged electricity producers under the “green” tariff to compensate SE Guaranteed Buyer for losses incurred due to its inability to sell the electricity purchased from them.
Introduction of provisional anti-dumping duty on imports of glass containers from Belarus
Result
A provisional anti-dumping duty of 31.37% was applied to glass containers for food and beverages originating in the Republic of Belarus based on the interim results of the anti-dumping investigation. This decision on application of provisional duty on imports of goods to Ukraine was the first decision adopted by the Interdepartmental Commission on International Trade after 24 February 2022.
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OUR AWARDS
Our reliability is confirmed
The Legal 500 – EMEA 2025 Leading Firm in Tax for Ukraine
World Tax 2025 Recommended in General Corporate Tax and Tax Controversy for Ukraine
ITR EMEA Tax Awards 2023 Shortlisted as Tax Disputes Firm of the Year
Market Leaders: Ranking of Law Firms of Ukraine 2025 Leading Firm in Tax Law / Consulting
Ukrainian Law Firms 2023-2024. A Handbook for Foreign Clients Established Practiсe in Tax Consulting and Tax Litigation
Trust in firm
Professional liability insured
“In the entire history of our firm, there has not been a single insured event”
Mikhail Ilyashev, Managing Partner
INDUSTRY EXPERTISE
Practical experience in the industries:
PRESS
Recent publications
Can Your Business Handle New Challenges? Exploring the “White Business Club”
Column, The Page
23 July 2024
The More You Earn, the More You Pay. What Income Tax Rates Can Be Introduced in Ukraine
Column, Focus
18 January 2024
Taxes, Risk Insurance, and Mobilization: Ukrainian Laws Effective January 1, 2024. What Changes to Expect?
Column, NV Business
11 January 2024
Press
Latest news
Ilyashev & Partners Advises ESTDEV on Implementation of International Technical Assistance Project in Ukraine
17 July 2025
Ilyashev & Partners Successfully Defends Ukrainian Fashion Retailer in EUR 1 Million Tax Evasion Case
15 May 2025
Ilyashev & Partners Advises European Energy Operators on Entering Ukrainian Wholesale Electricity Market
18 March 2025
Ilyashev & Partners Scores Legal Victory in Tax Dispute for Energy-Efficient Equipment Manufacturer
10 October 2024
Ilyashev & Partners Successfully Represents Hotel Chain in Tax Dispute over Alcohol Distribution and Storage
17 September 2024
