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Key contacts
Partner: Fintan Clancy
Partner: Ailish Finnerty
Partner: David Kilty
Partner: Orlaith Kane
Partner: Elaine Mooney
Quick facts
Practitioners (worldwide)

20

Partners

5

Other qualified practitioners

15

Total number of lawyers

20

Languages

English

Key practice areas
General corporate tax
Tax
Transfer pricing
Firm overview

Our Tax Group is one of the leading tax law practices in Ireland. We provide fully comprehensive and commercial tax advice to a broad range of domestic and international clients operating in all sectors of the Irish economy. We provide high value advice on important transactions and challenging situations. Our team is an integrated part of the firm’s wider legal practice for clients but also provides stand-alone tax advice.

The Group takes the lead on advisory, transactional and contentious matters or works on an integrated basis with other practice groups in the firm such as corporate, finance, capital markets, real estate and litigation. Our clients include large multinational public companies, many of the world’s leading financial institutions, government bodies and many of Ireland’s leading companies.

The Tax Group is involved in the development of Irish tax policy and Ireland’s response to international tax reform. The tax team has engaged extensively with the Irish Department of Finance, the EU Commission and OECD on new legislative proposals, responding to public consultations, legislative feedback statements and engaging with the Irish Department of Finance and European Commission on specific matters of concern for clients. Acting on our own and also as part of various collective efforts, we have been involved in efforts to strengthen the Irish tax system and to make Ireland a leading jurisdiction for international business.

Key practice areas
  • APAs
  • Corporate taxes
  • Cost-sharing arrangements
  • Cryptocurrency
  • Environmental
  • Financial services
  • M&A
  • Restructuring
  • Technology
  • Transactions
  • Value chains
  • International tax advisory
Key practice contacts and recent matter highlights

Fintan Clancy, Partner
Transactions
fintan.clancy@arthurcox.com

  • Fintan advises companies on the tax issues arising from transactions such as acquisitions, disposals, reorganisations, migrations, securitisations, IP onshoring and financings
  • Running successful litigation at the Tax Appeals Commission (“TAC”) and the Superior Courts on issue such as VAT recovery for listed holding companies, management expenses deduction, taxation of share recharge payments, expense deduction of withholding tax with a 100% win rate at the TAC
  • Running MAP and APA processes with the Irish Revenue and tax authorities in the US, UK, Korea, Spain, Canada, among others over transfer pricing matters and other issues such as CEO compensation, resolving dual residence etc.

Ailish Finnerty, Partner and Chair
International tax advisory
ailish.finnerty@arthurcox.com

  • Advising on the tax aspects of a wide variety of transactions, including leasing transactions, mergers and acquisitions, disposals, reorganisations and corporate restructurings, inward investment projects, securitisations and all forms of structured financing.
  • Advising numerous US clients on establishing operations in Ireland and has extensive experience in intangibles planning in and through Ireland.
  • Extensive experience in tax controversy matters including mutual agreement procedures (MAP) and other dispute resolution mechanics in international taxation.

David Kilty, Partner
Transactions
david.kilty@arthurcox.com

  • Advising a number of leading financial institutions such as Bank of America Merrill Lynch, Barclays, Citi, Deutsche Bank, Goldman Sachs and Morgan Stanley on a variety of structured finance transactions.
  • Advising managers such as Apollo, AXA, Blackstone, Carlyle, Chenavari and KKR on CLO transactions.
  • Advising a number of other arrangers and managers on the establishment of Irish originator platforms for CLOs and advising on a series of CLOs utilising these structures.
Sector expertise
  • Accounting
  • Aviation
  • Banking
  • Construction and materials
  • Consumer goods and services
  • Energy
  • Financial services
  • Government and public policy
  • Healthcare
  • Insurance
  • Investment management
  • Natural resources
  • Pharmaceutical and life sciences
  • Real estate
  • Technology and telecommunications
  • Transport
  • Utilities
Other offices

Belfast
Victoria House, Gloucester Street, BT1 4LS, Northern Ireland
+44 28 9023 0007
belfast@arthurcox.com
https://www.arthurcox.com/contact/belfast/

London
12 Gough Square, EC4A 3DW, United Kingdom
+44 207 832 0200
london@arthurcox.com
https://www.arthurcox.com/contact/london/

New York
One Rockefeller Plaza, 15th Floor, NY 10020, USA
+1 212 782 3294
newyork@arthurcox.com
https://www.arthurcox.com/contact/new-york/

Address:
10 Earlsfort Terrace, Dublin 2
D02 T380
D02 T380
Tel:+35301920000 Email:Contact Us Web Address:http://arthurcox.com
2026 Edition
General corporate tax
Tier 1
18 firms ranked
View full list

Tier 1

A&L Goodbody
3 practice areas
View full profile
Arthur Cox
3 practice areas
View full profile
Deloitte
7 practice areas
View profile
KPMG
7 practice areas
View profile
Maples Group
3 practice areas
View full profile
Matheson
3 practice areas
View profile

Tier 2

EY
7 practice areas
View profile
McCann FitzGerald
3 practice areas
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PwC
7 practice areas
View profile
Walkers
2 practice areas
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William Fry
3 practice areas
View profile

Tier 3

Dillon Eustace
2 practice areas
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Eversheds Sutherland
2 practice areas
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Grant Thornton
6 practice areas
View profile
Mason Hayes & Curran
3 practice areas
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Pinsent Masons
2 practice areas
View profile

Tier 4

Azets Ireland
2 practice areas
View profile
HLB Sheehan Quinn
2 practice areas
View profile
Transfer pricing
Tier 2
12 firms ranked
View full list

Tier 1

A&L Goodbody
3 practice areas
View full profile
Deloitte
7 practice areas
View profile
EY
7 practice areas
View profile
Matheson
3 practice areas
View profile
PwC
7 practice areas
View profile
William Fry
3 practice areas
View profile

Tier 2

Arthur Cox
3 practice areas
View full profile
KPMG
7 practice areas
View profile
Maples Group
3 practice areas
View full profile

Tier 3

Grant Thornton
6 practice areas
View profile
Mason Hayes & Curran
3 practice areas
View profile
McCann FitzGerald
3 practice areas
View profile
Overview

Arthur Cox is a renowned advisor on innovative Irish transactions, structured finance, and real estate portfolio disposals. The Arthur Cox Tax Group focuses on both international and domestic markets, with mandates from multinationals and government bodies. Partner Fintan Clancy is head of tax, supported by fellow partners Ailish Finnerty, David Kilty, and Orlaith Kane. 

The firm advised Flutter Entertainment plc on its acquisition of a 56% initial stake in NSX Group and assisted Flutter Entertainment on acquiring Snaitech in a $350 million transaction. It also represented Starwood Capital Group on its strategic investment in Echelon Data Centres, pertaining to a new €900m debt facility. 

Senior associate Nicola Cavey arrived from Freshfields Bruckhaus Deringer in January 2025. Associate Simona Prielaidiate departed to the Revenue Commissioner Solicitors in July 2024.  

Client feedback  

‘’Responsive and client minded.’’ 

‘’Comprehensive and creative solutions to the main issues of the deal.’’

Linked Reviews
Tax

Arthur Cox is a advisor on innovative Irish transactions, structured finance and real estate portfolio disposals. The tax group focuses on both international and domestic markets, with mandates from multinationals and government bodies. Partner Fintan Clancy is the head of tax, supported by fellow partners Ailish Finnerty, David Kilty and Orlaith Kane.

The firm advised the Mallinckrodt Group pursuant to a $6 billion global corporate and financial restructuring project. It also acted for Linde on its intercompany reorganisation, culminating in the delisting of Linde shares from the Frankfurt Stock Exchange.

Partner Caroline Devlin retired from the practice in July 2023. Tax director Mary Dineen arrived in June 2023.

Client feedback

“Quality and depth of expertise.”

“The Arthur Cox team are very well regarded for their general corporate tax planning and M&A work.”

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