The Revenue Commissioners have published headline results for last year which show that it took in a total of €33 billion in taxes, down from €40.1bn the previous year.
In its preliminary results for 2009, Revenue said the amount of income tax collected last year fell to €11.8 billion from €13.2bn in 2008.
The 2009 figure included the income levy introduced last year. The amount of stamp duty also fell from €1.651 billion to €929m while capital gains tax slumped from €1.430 billion to €542m.
Today's results also reveal that Revenue collected a total of €114.35m as part of its special investigations including probes into illegal offshore assets and interest reporting.
This brings its total yield so far to date to €2.603bn.
During the year it obtained a total of ten prosecutions for serious evasion, six for tax and four for customs.
By the end of the year it had a total of 126 cases either being investigated or being considered by the Director of Public Prosecutions.
It also levied a total of €5.31m in fines and penalties for other prosecutions including 1,622 cases of people not filing their P35, VAT, income tax or corporation tax returns.
During the year it also seized cigarettes worth €92.1m as well as €30.2m worth of cannabis and €2.3m worth of cocaine and heroin.
