05/06/2026
New figures show the annual cost of keeping one person in prison has exceeded €100,000 for the first time — reaching €103,334 per prison place last year.
These figures were reported today by BreakingNews.ie: https://bit.ly/4x8wQT0
This increase (from the previous calculation of €99,072) comes at a time when Ireland’s prisons are operating at 124% capacity, with hundreds of people sleeping on mattresses on the floor. Yet despite record spending, outcomes are not improving. Prison remains the most expensive and least effective response to many forms of offending.
IPRT highlighted the need to address the root causes of offending — poverty, inequality, homelessness, addiction and mental ill‑health — in our recent report "From Punishment to Prevention: Poverty, Inequality and Pathways into the Irish Criminal Justice System". Without tackling these drivers, expanding the prison estate will not resolve overcrowding or reduce reoffending.
Community‑based alternatives offer a more effective, humane and sustainable approach. Probation supervision, restorative justice and supported temporary release cost less than 10% of a prison place and deliver better outcomes for individuals, families and public safety.
Budget 2026 made welcome progress with increased funding for the Probation Service, but investment remains heavily weighted towards prison expansion. Building more cells will take years, cost millions, and will not address the policy choices — particularly the overuse of short custodial sentences — that drive overcrowding.
A justice system that prioritises effective, community‑based responses is better for people, communities and public expenditure.
Department of Justice, Home Affairs and Migration
Department of Public Expenditure Infrastructure Public Service Reform and Digitalisation
The cost of maintaining an available, staffed prison space reached €103,334 last year, representing a 28.6 per cent surge in operational spending over a five-year period.