The National Treasury Management Agency said it sold €1.25 billion in a dual bond auction today.
The agency said it sold €800m of nine-year bonds at a yield of 0.54% and €450m of 28-year debt at a yield of 1.7% in its final bond auction of the year.
The NTMA had originally planned to issue €9-13 billion in long-term debt this year.
But it has now raised €15.75 billion via benchmark sales and a further €610m in its first-ever sale of inflation-linked bonds to facilitate the early repayment of some of its 2010 bailout loans.
The Department of Finance said in September it would seek early repayment of €5.5 billion of bailout loans consisting of its outstanding debt to the International Monetary Fund, Denmark and Sweden.
It said it hoped to save around €150m in the process.