A new round of attacks has begun in the election campaign - with Fine Gael, Sinn Fein and Fianna Fail all accusing each other of poor financial planning.
Sinn Féin has accused Fine Gael of underestimating the cost of abolishing USC by €500 million.
Fianna Fáil, meanwhile, claims the large government party has conflicting promises about whether USC will be gone by 2020, 2021 or 2022.
However Fine Gael claims there are no issues in either case - claiming Pearse Doherty has been attending the "Gerry Adams maths school" - while also claiming Fianna Fail has under-budgeted by €1.24 billion as it did not factor in the cost of a future public pay deal.
Micheal Martin in turn has hit out at this explanation, saying Fine Gael has also refused to state how much it would devote to a post-Lansdowne Road pay deal, because it would give away a negotiating position.
Meanwhile Labour has been attracting attention for portraying opposition leaders as members of a boy band called 'No Direction'.
It's taken out newspaper adverts depicting AAAPBP's Paul Murphy, SF's Gerry Adams, FF's Micheal Martin, Renua's Lucinda Creighton and Shane Ross of the Independent Alliance as members of the boy band.
The ad was criticised by Creighton - who says Labour are so out of touch they don't realise One Direction now has only four members. Labour replied that Creighton was the Zayn Malik of the group, having quit her party early.
Paul Murphy, meanwhile, has turned the ad on its head by claiming Joan Burton and Enda Kenny are members of the ageing rock band Status Quo.
Our political correspondent Gavan Reilly reports.
