Corporation tax receipts increased by 500% in past 20 years, figures show 

Research conducted by the Irish Fiscal Advisory Council earlier this year found that almost half of the corporation tax collected in 2024 came from just three companies, underlying the extent to which Ireland has come to rely on such income. File picture: Jim Dyson/Getty

Corporation tax receipts have increased by more than 500% over the past 20 years, figures have revealed.

The data from the Parliamentary Budget Office (PBO) — which provides independent fiscal advice to the Oireachtas — details how corporation tax in Ireland in 2025 stood at €34.7bn, up from €5.5bn in 2005.