About Me

I am senior counsel based in Helsinki, where I specialise in tax planning, mergers & acquisitions, corporate restructuring and leadership changes in family-owned companies. I also assist individual clients and their families relating to their worldwide tax issues.

Advising on domestic and international tax matters in corporate and personal income taxation, I act as a daily administrative tax adviser and a tax coordinator of domestic and international Finnish companies and branches.

Acting on behalf of clients including private banks and their customers, both companies as well as individuals, I also represent leading investment banks, private equity investors, medium sized companies, and family-owned companies and their owners.

Over the years, I have been recognised as one of Finland's leading tax experts in many of the major international legal directories including Chambers & Partners 2020, Finland Tax (Band 3), Legal 500 EMEA, Chambers Europe 2022, World Tax, International Tax Review and World Transfer Pricing.

I am one of the authors of 'Sopimusriskit' (2014), a comprehensive and practical book on contracts and risk management and, with Janne Juusela, published 'Sukupolvenvaihdoksen verotus' (2010, 2014 and 2018). In addition, I have written articles in several Finnish and global professional publications and have been a contributor to the Finland chapter in 'Women, Business and the Law, Getting to Equal', an annual publication of the World Bank Group. I am also a regular lecturer and panellist at seminars and events on tax.

Today, I am a member of International Fiscal Association Finland and of Suomen Veroasiantuntijat ry - the Association of Finnish Tax Experts. During 2020-22, I am also a member of the Finnish Bar Association's tax law expert team. Alongside my native Finnish, I speak English and Swedish and understand written French.


  • Master of Laws, University of Helsinki (2000)


  • Attorney-at-law, the Finnish Bar Association (2008)
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'Excellent customer orientation, expertise and ability to find solutions to complex tax-related problems.'

Chambers Europe 2018

Sami Tuominen is highly regarded.

World Tax, Tax controversy 2021

Finland Tax, Band 3

Chambers & Partners 2020

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