The government took in 10% of its total target for the year in income tax last month.
Exchequer figures show total taxes up 17% on a year ago.
But €250 million in corporation tax taken in last month was originally due for payment in 2011.
VAT was also up by 3%.
This is reflective of strong consumer spending in November and December before the hike to 23% at the start of January.
The figures come as the Central Bank downgrades its growth forecast for the Irish economy.
This has prompted opposition parties to predict that the government will have to introduce an emergency budget this year.
Sinn Fein finance spokesman Pearse Doherty says that if the Central Bank is right the government will have to introduce the measure to meet its targets.
