Janne advises on matters related to corporate and cross-border taxation as well as mergers and acquisitions. Janne is ranked as a leading tax lawyer in Finland (e.g. Chambers Europe & Global).
Prior to joining Borenius, Janne worked as a Tax Adviser at the auditing company KPMG and in the Ministry of Finance where his responsibilities regarded the drafting of the tax legislation.
Janne is a Doctor of Laws and he defended his doctoral thesis on international tax law in 1998. He has written books on tax law and published several articles in Finnish and international publications of the field. He is one of the authors of Corporate taxation I-II (Yritysverotus I-II) (Talentum).
Janne lectures regularly on tax related issues. He is a member of the board of the Finnish branch of International Fiscal Association, and acts as a docent of tax law at the University of Helsinki.
Janne heads the firm’s Tax team.
Chambers Europe & Global
Chambers Europe | 2016
“A leading character in Finnish taxation, with deep knowledge and insights.”
Chambers Europe | 2016
“One of the best tax experts in Finland.”
Chambers Europe | 2015
“A true expert who can also talk about tax in layman’s terms. He is innovative and always looking for solutions.”
Legal 500 | 2017
“One of leading experts in the field.”
International Tax Review
- Tax Controversy Leader
Tax Directors Handbook
Who’s Who Legal
- Corporate Tax
- Advised in transfer pricing audit defence for Nokian Renkaat.
- Advised in transfer pricing audit defence for Fortum PLC.
- Advised in sale of Paroc Group Ltd.
- Advised British Petroleum, BP entities on construction contract tax matters.
- Partner, Borenius, 2008–
- Attorney, Borenius, 2005–2008
- Tax Expert, KPMG, 2003–2005
- Senior Adviser, Ministry of Finance, taxation department, 1998–2002
- Researcher, University of Helsinki, 1994–1998
- Bar Admission, 2007, Helsinki, Finland
- Docent of Tax Law, 2002, University of Helsinki, Finland
- Doctor of Laws, 1998, University of Helsinki, Finland
- Master of Laws, 1994, University of Helsinki, Finland
- Finnish, English, Swedish
- Suomalainen Lakimiesyhdistys ry (Finnish Lawyers Society)
- The Association of Finnish Lawyers
- Finnish Bar Association
- International Fiscal Association
- Associate member of American Bar Association
- Urheiluoikeuden yhdistys
- Suomen Veroasiantuntijat ry
- ICC Finland Expert Group on Taxation