Press releases

Deloitte Ireland joins forces with leading Mid-West tax specialists Cahill Taxation Services creating the largest tax practice in the region

28 April 2022. Deloitte Ireland has today announced the acquisition of Ennis-based tax firm, Cahill Taxation Services to create the largest tax practice in the Limerick/Ennis region.

The acquisition will grow Deloitte’s Mid-West tax practice to 45 people and the local office to over 150 people strengthening Deloitte Private’s services, particularly for family businesses, privately-owned companies, and HNWIs.

Cahill Taxation Services is a well-established tax practice that provides a range of tax services related to retirement and succession planning, sell side tax advisory, property transactions and revenue audits. The principal of Cahill Taxation Services, Fergal Cahill, will join Deloitte as a Tax Partner within the Deloitte Private offering.

Deloitte is the largest global professional services and consulting firm with nearly 3,000 people in Ireland providing Audit & Assurance, Tax, Consulting, Risk and Financial Advisory services to public and private clients spanning multiple industries. Deloitte has over a quarter of its Irish workforce located across its regional offices in Cork, Limerick, Galway and Belfast.

Commenting on the news, Fergal Cahill, Principal and Founder of Cahill Taxation Services said: “This is a landmark announcement for us today that reflects the current resurgence of business across the Mid-West. Having started Cahill Taxation Services 15 years ago and built a vibrant tax practice in the Mid-West I see this as a natural evolution of our growth story. Combining forces with Deloitte to become the biggest tax advisory team in the region enables us to deliver a wider range of services to our clients across various industries. We are excited to have the opportunity to join a global leader to help propel even more local businesses forward. I have been blessed with loyal clients and staff and this exciting development is a testimony to their support of my business throughout the past 15 years.”

Harry Goddard, CEO, Deloitte Ireland said: “This is a significant milestone in our business as we expand our tax practice in the Mid-West to create the largest tax practice in the region. I’m delighted to welcome Fergal and his team to Deloitte, building on the strength and depth of our experience and enhancing our overall offering to private sector clients. I look forward to seeing the positive impact they will bring to our team.”

Karen Frawley International Tax Partner and Deloitte Limerick Head of Tax said: “We’ve seen tremendous growth opportunities in the Mid-West over the last number of years across both our multinational and private clients and this strengthens our services in the Mid-West region, growing our headcount to 45 specialist tax practitioners. Fergal and his team bring tremendous experience working with family-owned businesses and high-net worth individuals and this, combined with Deloitte’s industry expertise, makes a compelling service offering for Mid-West-based businesses. At a national level this enhances our position as one of the leading firms advising Irish owned family businesses and private clients.”

The acquisition is expected to come into effect on 1 June 2022.


Issued by Murray on behalf of Deloitte Ireland

For Further Information Please Contact

Orna Clarke
01 498 0300
087 677 0360

Olwyn Flanagan
Deloitte Ireland
083 173 7585

About Deloitte

At Deloitte, we make an impact that matters for our clients, our people, our profession, and in the wider society by delivering the solutions and insights they need to address their most complex business challenges.

As the largest global professional services and consulting network, with over 312,000 professionals in more than 150 countries, we bring world-class capabilities and high-quality services to our clients.

In Ireland, Deloitte has approximately 3,000 people providing audit, tax, consulting, and financial advisory services to public and private clients spanning multiple industries. Our people have the leadership capabilities, experience and insight to collaborate with clients so they can move forward with confidence.

In this press release references to Deloitte are references to Deloitte Ireland LLP. The information contained in this press release is correct at the time of going to press. Deloitte Ireland LLP is the Ireland affiliate of Deloitte NSE LLP, a member firm of Deloitte Touche Tohmatsu Limited, a UK private company limited by guarantee (“DTTL”). DTTL and each of its member firms are legally separate and independent entities. DTTL and Deloitte NSE LLP do not provide services to clients. Please see to learn more about our global network of member firms.

About Cahill Taxation Services

Established in 2007 by principal, Fergal Cahill, Cahill Taxation Services are a team of tax specialists and tax experts, known for their advisory focus. Based in Ennis, Co. Clare with an international client base, the Cahill Taxation Services’ team have the specialised experience and qualifications to provide strategic tax and business advisory services. CTS provides a full suite of tax consultancy services at a very high level with professionalism.

Cahill Taxation Services has developed an outstanding skilled team of tax specialists with legal, accountancy and tax qualifications providing distinct areas of expertise include corporate restructuring, company and business sales, mergers and acquisitions, succession planning and revenue audits.

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