Eugene O'Neill Director - Tax Belfast + 44 (0)28 9587 2320


Eugene joined Grant Thornton in 2017 having previously spent 7 years in a Big Four firm and 2 years in a mid-tier firm. Over this period, he has gained significant experience in providing tax advice to individuals and businesses. Eugene specialises in tax matters affecting owner managed business and focuses on innovation reliefs and tax incentives.

Sector experience

Eugene’s experience primarily focuses on privately held small and medium sized enterprises across a broad range of sectors including, manufacturing, food & beverages, printing & packaging and technology.

He has extensive experience on advising clients on a number of tax compliance and advisory matters. Recent advice on tax advisory matters includes:

  • research and development tax credits;
  • patent box;
  • capital allowances;
  • corporate structuring;
  • property taxes; and
  • exit planning.