The amount was disclosed in response to a parliamentary question submitted by Independent TD Mattie McGrath, who sought the totals for his native Tipperary, along with counties Clare, Cork, Galway, Kilkenny, Laois, Limerick, Offaly, and Waterford.
In her reply to Mr McGrath, Justice Minister Frances Fitzgerald said it was not possible to give a county-by-county breakdown as Garda overtime was recorded and analysed on a divisional basis.
“To compile the figures geographically by county could not be justified as it would involve a disproportionate amount of Garda time and resources,” she said.
The Garda division of Laois/Offaly saw the greatest amount of overtime cost from January to August of this year, with €1,222,271 spent on overtime.
The cost of overtime in Cork amounted to €1,095,785 over the same period.
Broken down by division, the costs came to €627,021 in Cork City, €270,507 in Cork North and €198,257 in Cork West.
In descending order, overtime in Tipperary amounted to €969,942, Limerick came to €966,164, Galway (€902,590), Kilkenny/Carlow (€821,588), Waterford (€638,861) and Clare (€548,097).
In providing the figures, Ms Fitzgerald said that the costs include overtime incurred by members on “major policing operations such the visit of US vice-president Joe Biden, the 1916 centenary celebrations and specific anti-crime operations such as Operation Thor.”