The National Treasury Management Agency said it sold €1.25 billion of 10 and 20 year bonds in a dual auction today.
The auction was at the top end of the NTMA's €1 billion to €1.25 billion range.
The NTMA has now raised €16 billion of its €18-20 billion target for the year.
The 10 year bond was sold at a yield of 0.02% and the 20 year bond at a yield of 0.55%.
Offers for both bonds were oversubscribed.