Fianna Fáil has pledged to "do a better job" with public finances, claiming the party prevented damage to the economy from Fine Gael's "regressive and unsustainable" tax policies.
On the second day of the party's election campaign, Fianna Fáil also accused Fine Gael of being good at spending money but not "getting value for money".
The party's finance spokesman Michael McGrath said Fianna Fáil is taking a responsible and cautious approach to the Irish economy, claiming this has annoyed its rivals in Fine Gael.
"When you look at the stinging criticisms, not just from Fianna Fáil but from the independent watchdog Fiscal Advisory Council, they have been highly critical of Fine Gael's spending record in recent times, the overruns in Department of Health and the HSE and other departments as well," he said.
"I think it annoys Fine Gael that Fianna Fáil is taking a very responsible, cautious and prudent approach to the Irish economy.
"They would rather it were different.
"Fianna Fáil will manage the Irish economy responsibly and do a better job at the public finances than Fine Gael have been doing."
Speaking from Fianna Fáil's election headquarters in Dublin, Mr McGrath said the party's housing proposals will be directly linked to its economic proposals.
"It's also essential we put a stop to the growing record of massive delays and overspending in the largest capital projects in the state," he added.
"I know and understand that Fine Gael has decided to go negative in this campaign and it's claimed that only it can be trusted with the economy.
"We reject this utterly.
"I don't think we should be distracted by this sort of politics, but it is worth saying something.
"Over the last four years, not only did we support prudent budgets, we actually stopped the damage which would have resulted from Fine Gael's regressive and unsustainable tax policies."