TDs were paid expenses of over half a million euro in August - a month during which the Dáil didn't sit once.
Records published by the Oireachtas show TDs were paid over 528,000 to cover their travel costs and the costs of running their office in August.
The records also show that TDs only attended Leinster House a total of 269 times throughout the month - an average of 1.5 times per TD for the entire month.
Meanwhile Senators were paid allowances of over nearly 150,000 for August - a month when the Seanad had only one day of business, a debate on overturning Ireland's law on organ transplants.
Travel and 'public representation' allowances are paid in equal instalments throughout the year, meaning the allowances don't necessarily reflect how busy a politician might be within a particular month.
The public representation allowance is also aimed at covering the costs of running a constituency office, which would also continue to operate through August even though the Oireachtas is in recess.
Only one TD (Labour's Eamonn Maloney) and four senators - Ivana Bacik (Labour), Hildegarde Naughton (FG), and independents John Crown and Fiach Mac Conghail - declined to draw any allowances for the month.