John Lahart (Dublin South West, Fianna Fail) | Oireachtas source

Transaction taxes accounted for 20% of the total tax take at that time and corporation tax currently accounts for 18% of the total tax take.

As Mr. Tutty stated, budget 2015 predicted a surplus for the first time. If I understood him correctly, corporation tax receipts were predicted to be €5 billion in 2018.