Winter Tax Conference
Date & time: 03 December 2025 09:30-13.30
Our 2025 Annual Tax Conference focuses on the key tax issues impacting accountants and other tax professionals in 2025 and beyond. The conference will include high profile speakers from various tax sectors.
You can download the Slide pack for this event by clicking the link below.
09:30 am
Opening Address
Gearóid O’Sullivan, Chartered Accountants Ireland
09:35 am
Pensions update: Auto enrolment
Owen Redmond, Goodbody
10:15 am
Succession Planning
Morna Aherne, Brass Tax Consultancy
10:50 am
NI Tax update
Eunan Ferguson, KPMG
11:25 am - Coffee Break - 10 minutes
11:35 am
Finance Act – ROI
Shane McCarthy, Grant Thornton Ireland
12:10 pm
R&D / Capital Tax update
Eoin Brennan, SciMet R&D
12:45 pm
VAT Update
Mairead Hennessey, Tax Key
12:00 pm
Closing Remarks
Gearóid O’Sullivan, Chartered Accountants Ireland

Gearóid O’Sullivan
Chartered Accountants Ireland
Gearóid is the Institute’s Tax Leader and is responsible for driving tax policy within the Institute

Owen Redmond
Head of Financial Planning & Pension Strategy, Goodbody
Owen Redmond is Head of Financial Planning & Pension Strategy in Goodbody has over 30 years’ experience in financial services in Ireland and has worked in the areas of retail banking, private banking, financial consultancy, wealth management and stockbroking. He joined Goodbody in 2013 to establish the Goodbody Financial Planning. His team specialise in cohesive financial plans designed to extract value and attain client goals. Owen has a MSc Degree in Financial Services and is a Certified Financial Planner.

Morna Ahern
Owner, Brass Tax Consultancy
Brass Tax Consultancy is a Chartered Accountant, Chartered Tax Consultant, and Lecturer in Taxation at TUS. Morna is the owner of Brass Tax Consultancy, a boutique tax advisory firm based in the Mid-West and is a Member of Mid-West Society for Chartered Accountants Ireland.

Eunan Ferguson
Director, KPMG
Eunan has 20+ years’ experience advising on employment taxes, reward, expatriate tax matters, personal tax and corporate tax issues across a wide range of both domestic and multinational clients.
Eunan advises employers on all aspects of employer compliance obligations including the operation of PAYE and NIC on payments, expenses and benefits provided to employees, establishing employment status, termination payments, National Minimum Wage (NMW) and the operation of Construction Industry Scheme (CIS) regulations.
He also advises employers on the structuring and taxation of employee reward packages. He has supported and represented many clients during HMRC investigations, preparing voluntary disclosures, rationalisation exercises and performing tax due diligences in advance of sale/acquisition.
Eunan is currently KPMG Ireland’s tax technical representative on the Northern Ireland Tax Committee of Chartered Accountants Ireland and the Northern Ireland Branch of The Chartered Institute of Taxation

Shane McCarthy
Associate Director, Tax, Grant Thornton Ireland
Shane McCarthy is an Associate Director in the Tax team at Grant Thornton Ireland. He provides technical and legislative support across all tax disciplines, including International, Corporate, Transactions, Indirect, Financial Services, and Private Clients. Shane has extensive experience advising on complex tax technical issues for both clients and colleagues, and regularly prepares articles, presentations, and updates for internal and external audiences.
He works closely with the Tax Controversy team on technical aspects of Revenue interventions and has contributed to submissions to Revenue and Government Departments on intricate tax matters. Prior to joining Grant Thornton, Shane lectured extensively for over 20 years in the areas of Taxation, Law, and Accountancy.
Qualifications:
- Chartered Tax Adviser (Irish Taxation Institute)
- Trust and Estate Practitioner (STEP)
- Graduate Diploma in Education (University of Limerick)
- Bachelor of Business Studies (Trinity College Dublin)

Eoin Brennan
Managing Director, SciMet R&D
Eoin Brennan is Managing Director of SciMet R&D, a specialist consultancy firm focused on R&D Tax Credits in Ireland. With over 14 years of experience in the field, Eoin has worked with companies of all sizes and across all sectors, helping them to submit claims that are optimised for quantum and robustness. He has a proven track record of successfully supporting clients through Revenue audits. Eoin works closely with accountancy firms across Ireland, assisting them in identifying clients that qualify for the tax credit and supporting them through every stage of the claims process. His articles on R&D Tax Credits regularly feature in leading accounting and tax publications, and his deep technical and practical expertise ensures that companies can confidently and compliantly access this valuable tax incentive.

Mairead Hennessey
Principal, Taxkey
Mairéad Hennessy is Principal at Taxkey, a specialised tax consultancy practice that she founded in 2016. Mairéad leads a team of expert Chartered Tax Consultants to advise business owners, high net worth individuals and property investors to navigate complex tax matters. Taxkey partners with other professional advisors (namely accountants, solicitors and financial advisors) to provide a holistic service in delivering practical and proactive tax solutions to clients.
Mairéad is a Chartered Tax Advisor (CTA AITI) and Fellow of Chartered Accountants Ireland (FCA) with over 20 years’ experience as a tax practitioner. She regularly speaks on tax technical matters at professional conferences and is a frequent contributor of tax articles in several professional journals. She also contributes to tax policy discussions through her involvement on the Tax Administration Liaison Committee (TALC), representing the Irish accountancy bodies on relevant working groups.

