Oliver O'Connor

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Advisory

Our progressive thinkers offer services to help create, protect and transform value today, so you have opportunity to thrive tomorrow.

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Aviation Advisory
Our dedicated Aviation Advisory team bring best-in-class expertise across modelling, lease management, financial accounting and transaction execution as well as technical services completed by certified engineers.
Consulting
Our Consulting team guarantees quick turnarounds, lower partner-to-staff ratio than most and superior results delivered on a range of services.
Business Risk Services
Our Business Risk Services team deliver practical and pragmatic solutions that support clients in growing and protecting the inherent value of their businesses.
Deal Advisory
Our experienced Deal Advisory team has provided a range of transaction, valuation, deal advisory and restructuring services to clients for the past two decades.
Forensic Accounting
Our Forensic and Investigation Services team have targeted solutions to solve difficult challenges - making the difference between finding the truth or being left in the dark.
Financial Accounting and Advisory
Our FAAS team designs and implements creative solutions for organisations expanding into new markets or undertaking functional financial transformations.
Restructuring
Grant Thornton is Ireland’s leading provider of insolvency and corporate recovery solutions.
Risk Advisory
Our Risk Advisory team delivers innovative solutions and strategic insights for the Financial Services sector, addressing disruptive forces, regulatory changes, and emerging trends to enhance risk management and foster competitive advantage.
Sustainability Advisory
Our Sustainability Advisory team works with clients to accelerate their sustainability journey through innovative and pragmatic solutions.

Related insights:

Sustainability Advisory Sustainability: A team sport that needs a captain

Is your company searching for a sustainability leader? Learn the key skills for embedding sustainability into your business strategy.

Catherine Duggan

| 4 min read | 03 Apr 2024

Audit

Our audit services can strengthen your business and stakeholders' confidence. You'll receive professionally verified results and insights that help you grow.

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Related insights:

Asset management Asset management of the future
In today’s global asset management landscape, there is an almost constant onslaught of change and complexity. To combat such complex change, asset managers need a consolidated approach. Read our publication and find out more about what you can achieve by choosing to work with us.

Shona O'Hea
| 1 min read | 21 Feb 2024
Internal Audit Maintaining Compliance with New EU Pension Directive IORP II
On 28 April 2021, the Irish Government transposed IORP II (Institution for Occupational Retirement Provision), an EU directive on the activities and supervision of pension schemes, into law.

| 4 min read | 21 Sep 2023
Risk, Compliance and Professional Standards FRED 82 – Periodic Updates to FRS 100 – 105
The concept of a new suite of standards for the UK and Ireland, aligning with international financial reporting standards, was first conceived in 2002

Stephen Murray
| 5 min read | 13 Sep 2023
Audit and Assurance Auditor transition: how to achieve a smooth changeover
Appointing new auditors may seem like a daunting task that will be disruptive to your business and a drain on the finance function. Nevertheless, there are a multitude of reasons to consider a change, including simply seeking a ‘fresh look’ at the business.

Blaithin O’Neill
| 3 min read | 26 Apr 2023

Tax

Our tax services help you gain trust and stay ahead, enabling you to manage your tax transparently and ethically.

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Corporate Tax
Our Corporate Tax team is made up of more than 40 highly experienced senior partners and directors who work directly with a wide range of domestic and international clients; covering Corporation Tax, Company Secretarial, Employer Solutions, Global Mobility and Tax Incentives.
Financial Services Tax
The Grant Thornton team is made up of experts who are fully up to date in terms of changing and evolving tax legislation. This is combined with industry expertise and an in-depth knowledge of the evolving financial services regulatory landscape.
International Tax
We develop close relationships with clients in order to gain a deep understanding of their businesses to ensure they make the right operational decisions. The wrong decision on how a company sells into a new market or establishes a new subsidiary can have major tax implications.
Private Client
Grant Thornton’s Private Client Services team can advise you on all areas of financial, pension, investment, succession and inheritance planning. We understand that each individual’s circumstances are different to the next and we tailor our services to suit your specific needs.
VAT
Grant Thornton’s team of indirect tax specialists helps a range of clients across a variety of sectors including pharmaceuticals, financial services, construction and property and food to navigate these complexities.

Related insights:

Tax Debt Warehousing Scheme Deadline: 1 May 2024

Businesses availing of the Debt Warehousing Scheme (DWS) have until 1 May 2024 to either pay their warehoused debt in full or engage with Revenue on addressing the debt. Read our latest insight to find out more.

Bernard Doherty

| 1 min read | 18 Apr 2024

Careers

Find out more about our opportunities.

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Experienced Hires

Looking for a more fulfilling role in professional services? One where fresh thinking, collaboration and diversity are valued? At Grant Thornton we do things...

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Graduate Programme

We offer a range of graduate programmes to help you thrive in your career. Work with and learn from the best in the business, make a difference and excel by...

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Undergrad Programme

We offer a fantastic opportunity to kick-start your career with our Summer Internship Programme.

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About Us

Grant Thornton Ireland is rapidly approaching 3,000 people, in 9 offices across Ireland, Isle of Man, Gibraltar and Bermuda, and a presence in over 149...

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Grant Thornton Alumni network

We believe in a connected world — so we created an industry-leading online Alumni Network that focuses on what matters most at Grant Thornton — our people.

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Events

Browse our schedule of upcoming live events or webinars for the latest thinking from Grant Thornton's subject matter experts.

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News centre

Explore Grant Thornton's latest press releases and stay informed with our most recent news updates. Our News Centre is your gateway to the latest developments...

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Experience

Oliver leads our Private Client & Wealth Management offering which provides financial planning, inheritance, investment, succession and tax planning advice to both corporate and private individuals.

Our Private Client team offer a wide range of related services which are all for the benefit of individual people. Individuals, whether business owners or sole traders or retirees are, and will remain, at the heart of our service offering.

Oliver has been with the firm since 1998 having achieved his professional qualifications through the firm.

Qualifications

Member of Chartered Accountants in Ireland (CAI)
Chartered Tax Consultant and is a Qualified Financial Adviser (QFA)
Bachelor degree (BA) in Accounting and Finance from Dublin City University (DCU)
Fellow of the Life Insurance Association (FLIA)

Latest Articles

Grant Thornton Financial Counselling Maximising your pension contributions: more than just tax relief

It’s that time of year again. As income tax returns are filed, we keep seeing advertisements and notices telling us to top up our pensions and reduce our income tax liabilities. Yes, contributing to a pension is an effective way of reducing tax, but this is only one benefit of making a contribution.

Oliver O'Connor

| 28 Oct 2021

Private Client Services Charging negative interest

We have heard for quite a while now how financial institutions are charging “negative interest” on corporate deposits. It was interesting news at the time, but while it didn’t impact personally it was soon forgotten by many. Not now. It is only a matter of time before financial institutions will be charging people for holding personal deposits. In advance of this, what should you do?

Oliver O'Connor

| 03 Feb 2021

Tax Tax deadline 2020

Read this month years Tax Deadline

Oliver O'Connor

| 10 Nov 2020

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Partner - Private Client and Wealth Management

Oliver O'Connor

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