Profile
Work Department
Position
Catherine is a partner in the tax department at Matheson. Catherine has significant experience advising multinational corporations doing business in Ireland on Irish corporate tax.
Catherine primarily advises multinationals on the Irish tax aspects of their operations including tax effective structuring of global reorganisations, IP ownership, inward investment projects and cash repatriation strategies. Catherine has a particular interest in advising on domestic and cross border tax disputes on transfer pricing matters, including Irish audits, mutual agreement procedure requests, correlative relief claims, advance pricing agreements and advising on the application of EU State aid principles in the context of Irish taxation matters.
Catherine’s clients include many of the leading multinational corporations established in Ireland, primarily in the pharmaceutical, healthcare, ICT and consumer brand sector.
Catherine has published articles in leading tax journals, is co-author on the Ireland section of the Bloomberg BNA TP Forum and is co-author of the Ireland chapter of the International Fiscal Association Cahiers on Cross Border Business Restructuring.
Catherine is a Chartered Tax Advisor and a member of the Law Society of Ireland. Catherine is currently Chairperson of the International Fiscal Association – Irish branch.
Education
University of Limerick, BA Law and Accounting
Content supplied by Matheson LLP
Testimonials
Collated independently by Legal 500 research team.
- 'The firm understands the business realities underlying complex legal and regulatory issues and delivers solutions that are strategic, pragmatic, and timely. Matheson’s lawyers are deeply familiar with the challenges faced by international organisations operating in and through Ireland, and they approach engagements with a clear appreciation of global business dynamics.' ‘Matheson's tax practice have a unique skill set to distil complex technical tax matters into manageable challenges. They are very thoughtful in their responses and understand the Irish and global tax landscape.’ ‘Brian Doohan and Shane Hogan are two tax partners that really stand out. Their client service is the best in the business and they are always here when we need them, often times on very short notice and with very complicated tax issues. Their technical capabilities help us solve complex problems quickly and efficiently.’ ‘What makes Matheson LLP unique is the combination of technical excellence, commercial understanding, and accessibility across its teams. In our experience, Matheson distinguishes itself not just through the depth of its legal expertise but through the consistency and practicality of its advice.' ‘The individuals we work with at Matheson stand out for their combination of deep technical skill, commercial judgment, and accessibility. What differentiates them from competitors is their ability to translate complex legal and regulatory issues into clear, actionable advice that reflects a genuine understanding of our business.' 'The individuals at Matheson distinguish themselves through their judgment, reliability, and ability to work as true partners to our business. We couldn't be happier with the services they provide our organisation.’ ‘Matheson are the epitome of a trusted adviser - the tax team offers the rare combination of technical authority, practical judgment, and dependable execution.' ‘Mark O’Sullivan exemplifies what clients need in a trusted tax adviser: always reachable, fast without being rushed, and practical without losing technical rigour. He and his team consistently deliver clear answers, tight execution, and dependable outcomes.’
Key clients
- Smurfit Westrock Pernod Ricard SA / Irish Distillers Winthrop Technologies Circle Internet Group, Inc Pandox AB Vermilion Energy Inc Vertex Inc