Tax
Finland
5 years ranked
LAWYER PROFILE
Sebastian Kellas
Europe 2026
Ranked in 1 practice area
Contributions and articles
29 Articles, Press releases, highlights
About
Provided by Avance
Practice Areas
Tax and structuring, Mergers and acquisitions, Dispute resolution, Real estate and construction, Financial services
Sebastian is a recognized tax professional with extensive experience in M&A, capital market and real estate transactions as well as private equity, venture capital and incentive schemes. He regularly represents his clients in tax courts in complex tax disputes. Sebastian also has deep knowledge in company law and accounting related matters. As the secretary of a working group appointed by the Ministry of Justice, he drafted the amended provisions into the Finnish Companies Act regarding cross-border mergers and demergers.
Career
Avance Attorneys Ltd, Partner 2019–
Taxpoint Attorneys Ltd, Partner (2014–2019)
KPMG Finland, Partner (2007–2014)
KPMG Finland, Tax Advisor, Manager, Senior Manager and Director (1998–2006)
Helsinki Tax Office, Tax Official (1997–1998)
Professional Memberships
Finnish Bar Association
Chambers Review
Provided by Chambers
Chambers European Guide
Tax - Finland
Band 1
Individual Editorial
Sebastian Kellas is a highly knowledgeable tax lawyer who regularly advises on the tax and structuring aspects of corporate transactions, strategic partnerships and employee co-investment structures. He is also well versed in VAT disputes, with experience acting before the Supreme Administrative Court.
Strengths
Provided by Chambers
He is a talented structuring and tax professional with outside the box solutions. He has a great ability to explain complex issues in layman's terms and what the implications of different scenarios would mean for the client.
TaxChambers European GuideSebastian Kellas is the best tax lawyer in Finland.
TaxChambers European GuideSebastian is a true expert in his field.
TaxChambers European GuideHe is my go-to lawyer on tax issues.
TaxChambers European GuideHe is a very skilled lawyer.
TaxChambers European Guide
Ranked Individuals at Avance (18)
Finland
Sari Wallgren
Banking & Finance
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Robin Nordblad
Capital Markets
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Asko Lindqvist
Competition/European Law
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Katja Jaakkola
Head of Competition/European Law
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Ulf-Henrik Kull
Corporate/M&A
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Ilkka Perheentupa
Corporate/M&A
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Anders Floman
Corporate/M&A
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Erkki-Antti Sadinmaa
Corporate/M&A
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Ulla Vuokila
Head of Dispute Resolution
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Salla Suominen
Head of Dispute Resolution
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Mari Mohsen
Head of Employment
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Christoffer Charpentier
Real Estate
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Mathias Lindqvist
Real Estate
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Henrikki Tahkokallio
Head of Real Estate
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Eeva Riivari
Real Estate
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Lotta Nahkala
Real Estate
View profile Salla Suominen
Head of Restructuring/Insolvency
View profile Sebastian Kellas
Head of Tax
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Articles, Highlights and Press Releases
29 items provided by Avance
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