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John
Ryan

Tax Principal

John Ryan is a Senior Tax Principal and practises corporate tax focusing principally on advising international corporations doing business in and from Ireland.

His areas of expertise include advising on corporate acquisitions, mergers, reorganisations, inward investment tax incentives, workouts and cross-border restructurings. He has represented numerous US and other foreign corporations in establishing their Irish operations, and is standing advisor to a number of Irish based multinationals.

John is a frequent speaker on Irish tax matters and is also the Irish correspondent for the Irish Chapter of the BNA Tax Management Portfolio series entitled “Business Operations in Ireland,” a U.S. publication with global circulation. John is routinely counted among the top Irish and European tax advisers in prestigious publications such as Who’s Who Legal, Chambers Global and Chambers Europe.

Education

  • Dublin City University (DPA)
  • University College Dublin (BA in Agriculture Economics)

News and Insights

Insights
07/01/2025

Tax Controversy and Dispute Resolution Annual Report 2024

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Experience Highlight
20/12/2023

Aon advised on its $13.4 billion agreement to acquire NFP

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News
12/09/2023

Matheson Advises Smurfit Kappa on its merger with WestRock Company

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Experience Highlight
11/09/2023

Smurfit Kappa advised on its merger with WestRock Company

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Insights
09/12/2022

InDisputes | Corporation Tax Claims – The Importance of Checking it Twice

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Experience Highlight
20/02/2022

Circle Internet Financial Limited advised on new transaction terms to go public

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Experience Highlight
01/02/2022

MariaDB Corporation Ab on its announced transaction to go public.

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Experience Highlight
19/09/2021

Nordisk A/S advised on the purchase of Neotope Neuroscience Limited

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News
09/09/2021

Matheson Wins Two Awards at the ITR EMEA Tax Awards for the second consecutive year

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Experience Highlight
13/07/2021

Citi advised on the financing of the acquisition by ICON of PRA Health Sciences

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Accolades

“John Ryan is named a Tax Leading Advisor.”

World Tax

2022

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