hero banner


Declan is a partner in our tax team. He has over 30 years’ experience specialising in income tax and personal financial planning. He was previously a partner in RSM Farrell Grant Sparks which recently merged with Grant Thornton.

Declan has provided litigation support in family law matters and commercial disputes and has acted as an expert witness in the High Court and Circuit Court. 

Sector experience

Declan’s client portfolio includes individuals, entrepreneurs and medium sized companies in a wide variety of business sectors as well as professional service advisers and firms in the entertainment industry.



Declan O'Hanlon
Get in touch
Partner - Personal Tax
Declan O'Hanlon
Meet our People