Brendan is a Chartered Tax Adviser, Chartered Certified Accountant, and a Certified Public Accountant
He specialises in property related taxes and is the principal at Allen & Co a practice based in Tullow Co Carlow
Brendan has lectured on taxation and accountancy matters in Ireland and abroad.
Brendan was served as President of the Institute of Certified Public Accountants in Ireland in 2007/2008.
Brendan was Chair Irish region of Taxation Institute in the UK
Brendan was Chair of British regional society in UK
Brendan served on CCAB -I company Law Committee
Brendan served on the Taxation committee of the CPA
Brendan represented the IPOA at housing committee in Dail Eireann along with other members of the committee.