Jenni Parviainen

Managing Associate Tax

Jenni specialises in tax law, with a special focus on tax disputes and transactional tax advisory. Jenni frequently acts as counsel in tax litigation and advance proceedings. She also advises a wide range of clients in diverse domestic and cross-border M&A, real estate, finance, and capital markets transactions.

Jenni is a frequent speaker at conferences and lectures on tax litigation and transactional tax topics.

Rankings

  • Recognised among Associates to watch in Tax, Chambers Europe, 2025
  • Recommended in Lexology Index: Corporate Tax, 2024
  • Ranked in Tax, Chambers Europe, 2024
  • Recommended in Corporate Tax: Controversy, Who's Who Legal, 2023
  • “She's able to grasp the task at hand very quickly and easily.” Chambers Europe, 2024
  • "Jenni Parviainen is a name to watch for her work in tax disputes and advance ruling proceedings. Jenni Parviainen provides a good service.", Tax, Legal 500, 2023

Memberships and Positions of Trust

  • Officer of the Taxes Committee, International Bar Association, 2024–
  • Member of the Tax Committee of the Finland Chamber of Commerce, 2022–
  • Committee Member in CFE Tax Advisers Europe, 2020–2023
  • Member of the Finnish Bar Association
  • Member of International Fiscal Association (IFA)
  • Member of the Association for Finnish Tax Professionals
  • Member of Senilex (Turku University Alumni Association)

Professional Background

  • Managing Associate, Hannes Snellman, 2020
  • Senior Associate, Hannes Snellman, 2018-2020
  • Castrén & Snellman Attorneys Ltd, 2013–2018
  • PricewaterhouseCoopers Oy, 2012–2013
  • Ernst & Young Oy, 2010–2012

Education

  • Master of Science (Economics), Hanken School of Economics, 2013
  • Master of Laws, Turku University, 2010
  • Stockholm University, 2009

Publications

  • Finnish Chapter in Outbound Acquisitions: Tax Planning for European Expansion In a Changing Landscape, Practising Law Institute, The Corporate Tax Practice Series, 2024
  • The Court of Justice of the European Union rules that Finnish tax rules discriminate against foreign company form investment funds, MNE Tax, 2022 (co-author)
  • Finnish court rules on arm’s length range and transfer pricing adjustment point, MNE Tax, 2021 (co-author)
  • Finnish court accepts US GAAP as basis for transfer pricing in landmark ruling, MNE Tax, 2021 (co-author)
  • Finnish Tax Administration Targets Dividend Stripping, Kluwer International Tax Blog, 2020

Speaking Engagements

  • IBA New Era of Taxation Conference, Milan, speaker and organising committee member, 2025
  • Veroprosessit seminar, speaker, 2025
  • IBA New Era of Taxation Conference, Lisbon, speaker, 2024
  • Hannes Snellman Top Ten in Tax, speaker, 2024
  • Turku University Law School, lecturer, 2024
  • IBA, ABA, and IFA US Branch U.S. and Europe Tax Trends Conference, Munich, panel co-chair, 2024
  • IBA Annual Conference, Paris, speaker, 2023
  • Turku University Law School, lecturer, 2023
  • IBA, ABA, and IFA US Branch U.S. and Europe Tax Trends Conference, Zurich, speaker, 2023
  • Hannes Snellman Tax Day, speaker, 2023
  • Turku University Law School, lecturer, 2022
  • Alma Talent seminar on tax crime (Verorikospäivä), speaker, 2020
  • Turku University Law School, lecturer, 2021
  • Hannes Snellman webinar on tax litigation, speaker, 2021
  • Turku University Law School, lecturer, 2020
  • Hannes Snellman seminar on tax audits and tax litigation, speaker, 2019
  • Hannes Snellman Tax Day, speaker, 2019
  • Hannes Snellman Tax Day, speaker, 2018