Tax consulting


Tax consulting

Professional tax advisors with relevant education and experience in national and international taxation.

Our employees have extensive experience in Russian and international taxation, as well as the necessary certificates confirming their professional competence. Depending on the client's particular situation we engage specialists with the appropriate expertise and knowledge to fulfil the tasks required.


Our main objective is to provide quality services following a thorough analysis of the situation and not from a "formal approach" point of view. Before any service is rendered, we will firstly review and examine the situation and then propose the best possible solution. All professional services are checked by our in-house quality controllers.


We are valued not only for the quality of our services but also for the long-term relationships we build with our clients. The strength of these relationships allows us to always tailor our services precisely to the needs of our clients, providing them with great value.


Mainstay began operations in the CIS in 1989 as a service provider assisting with Sovcomflot's restructuring programme.

Since then we have expanded our services significantly and the number of clients across all industries has grown significantly.

Customized solutions

We understand that each client is unique, both in terms of needs and circumstances. We don't take a "one-size-fits-all" approach. You can be assured that our advice is tailored to your specific situation and according to your individual needs, not simply drafted from a template.

Our tax advisory services:

  • tax consulting;
  • corporate taxation;
  • indirect taxation;
  • international taxation;
  • business structuring and tax planning;
  • tax audit;
  • taxation of M&A transactions;
  • transfer pricing;
  • tax optimization;
  • taxation of individuals;
  • declaration;
  • liquidation of CFCs;
  • forensic;
  • due diligence;
  • support in tax accounting and tax returns in various jurisdictions;
  • tax litigation support.

Tax consulting can help reduce the cost of searching and maintaining your own staff, as well as the cost of ongoing professional development in connection with the release of the next changes in legislation. Trusting us to deal with taxation issues and having the support of our specialists, you will be able to focus on business tasks and deal with more priority matters. Whatever your business is, you can be assured of the quality and competence of our specialists. We are aware of the commercial importance of choosing the right partner, and in order to avoid unpleasant surprises in the future, we always discuss in detail the scope of work and all terms of cooperation before preparing a quotation.

Stanislav Boiko

Stanislav Boiko

Legal & Tax Consulting Director