Tax Compliance

Understanding the tax implications of financial transactions, remaining tax-compliant and maximizing tax efficiency are fundamental activities for all businesses. We help clients to not only meet all of their Revenue obligations but also to plan the most tax-efficient route to future growth and investment. Our expertise covers all aspects of corporate and personal taxation:


Our taxation team can advise on compliance across all tax heads, including corporation tax, income tax, VAT, PAYE, Stamp Duty, CGT, CAT. International
tax compliance and tax planning are also a specialty.


Tax Consulting

From commercial planning and asset management to company restructuring, our tax experts can advise on the most efficient route through the taxation landscape, both at home and abroad.


Duignan Carthy O’Neill is registered with the US based Public Company Accounting Oversight Board (PCAOB) which enables the firm to undertake the audit of USA Public Company Subsidiaries located in Ireland and the UK


Authorised by the Institute of Chartered Accountants in Ireland to carry on Audits and Business Activities.

Member of AGN International Ltd an association of independent accounting and financial advisory businesses. AGN International Ltd (and its regional affiliates; together "AGN") is a not-for-profit worldwide membership association of separate and independent accounting and advisory businesses. AGN does not provide services to the clients of its members, which are provided by Members alone. AGN and its Members are not in partnership together, they are neither agents of nor obligate one another, and they are not responsible or liable for each other's services, actions or inactions

© 2015 DUIGNAN CARTHY O'NEILL. Chartered Accountants, Registered Auditors, Dublin, Ireland. All Rights Reserved.