Public Expenditure Minister Brendan Howlin has said that the Government doesn't have the power to dictate bonuses for staff at Irish Water.
Minister Howlin says the Government's policy banning such payments for workers at commercial semi-states only goes as far as chief executives.
Staff bonuses at Irish Water have been coming under scrutiny, where payments are worth up to 10% of salaries.
But Minister Howlin admits the Goverment doesn't have any say in whether bonuses can be paid to lower-ranking staff.
"I've no role in relation to performance-related award schemes for staff below CEO level at commercial state companies," he said.
"It is expected that the board of these organisations acts responsibly in designing and implementing a pay structure that drives performance, while ensuring that they are fully complient with government pay policy."