I am advised by Revenue that a Post-Budget 2017 Ready Reckoner is available on the Revenue Statistics webpage at http://www.revenue.ie/en/about/statistics/index.html.
In relation to the Deputy's question, this Ready Reckoner shows a wide range of detailed information, including, on Page 6, the estimated first and full year costs to the Exchequer of changes to the earned income tax credit. While the figures do not match exactly those requested by the Deputy, they can be calculated on a straight-line basis.
All figures provided in the Ready Reckoner are estimates for 2017 incomes from the Revenue tax forecasting model using latest actual data for the year 2014, adjusted as necessary for income, self-employment and employment trends in the interim. They are provisional and may be revised.