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Tomás advises Irish and international corporations doing business in and from Ireland on all aspects of corporate taxation.

He primarily advises on corporate acquisitions, reorganisations, tax structuring for inbound and outbound investment, and tax controversy. Tomás also frequently advises on Irish stamp duty matters particularly in the context of global corporate transactions.

Tomás regularly publishes articles and chapters in leading tax publications on international and domestic tax matters. He is a qualified solicitor and Chartered Tax Adviser (CTA).

Experience and Education

  • Advising leading multinational corporations on the Irish tax aspects of their operations, including tax effective structuring of IP ownership, supply chain planning, global reorganisations and cash repatriation strategies.
  • Advising Irish and multinational corporations on a number of significant domestic and international tax disputes involving the Irish Revenue Commissioners and foreign tax authorities.
  • Advising on the tax aspects of numerous Irish public company transactions including mergers, acquisitions, public offerings and share placements.
  • Advising multinational corporations on the establishment and expansion of operations in Ireland.
  • Chartered Tax Advisor (CTA)
  • Law Society of Ireland
  • National University of Ireland, Galway (BA, LLB)

Deal Announcements

Experience Highlight

24/06/2025

Shrieve Chemical Company advised on its acquisition of Carbon Chemicals Group Limited

Experience Highlight

24/07/2024

Andera Partners advised on its investment into Kestra

Experience Highlight

05/10/2023

Horizon Therapeutics plc on its $28 Billion acquisition by Amgen Inc.

Experience Highlight

11/09/2023

Smurfit Kappa advised on its merger with WestRock Company

Latest Insights and News

Insights
30/10/2025

Key Changes in Ireland’s Finance Bill 2025

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Insights
09/10/2025

Four key announcements for multinationals in Ireland’s Budget 2026

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Insights
03/09/2025

InDisputes – Evaluating Targeted Anti-Avoidance in Irish Tax Appeals

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Insights
12/05/2025

InDisputes: Irish Tax Appeals Commission Achieves Continued Efficiencies Against Ever Increasing Complexity

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Insights
07/01/2025

Tax Controversy and Dispute Resolution Annual Report 2024

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Insights
21/10/2024

Legal 500: Tax Comparative Guide

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Insights
03/10/2024

Lexology Panoramic: Tax Controversy 2025

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Insights
05/06/2024

Seeking Cover: A Path to Challenge Digital Services Taxes in Ireland

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Insights
15/05/2024

Navigating an Era of Increased Regulation: Competition, Data and Privacy, Financial Advisory Services and Tax

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Insights
04/03/2024

The Legal 500: Tax Disputes Comparative Guide 2023

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Accolades

“Tomás Bailey has been an exceptional business partner to my company on tax matters. He is exceptionally knowledgeable and provided advice regarding our options which was invaluable. We were impressed by him, and guided by Matheson throughout, and achieved the best outcome due to their involvement. Cannot recommend highly enough.”

Tax: The European Legal 500

2024

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