New figures from the Central Bank show that at the end of January Irish residents - mostly companies and institutions - had an outstanding debt of €1.1 trillion.
Figures for issued debt securities indicate that €790 billion worth of this debt is denominated in euro, while the remaining €270 billion is denominated in foreign currencies.
Most of this amount - some €789.1 billion - is accounted for by entities based in the IFSC, including companies involved in asset finance, securitisation and treasury management.
Irish financial institutions, including banks, account for €182.6 billion of the debt securities, of which €46.8 billion is in short-term securities.
Irish Government debt at the end of January was €78 billion, an increase of €6.7 billion since the end of December, and reflecting a €5 billion bond issue in January.
Irish pension funds and insurance companies account for €2.2 billion of the outstanding debt instruments. Around 9% of the outstanding debt is in the form of short-term instruments mostly due for repayment this year.