The Revenue Commissioners carried out 237,000 audit and compliance interventions last year which yielded €734m, according to its annual report.
A further €41.7m was raised from tax avoidance cases.
The Revenue Commissioners also published an analysis of corporation tax payments.
Excluding the Apple tax case, a total of €32.9 billion was paid last year – which was an increase of 17%.
Of that, 87% came from foreign-owned multinationals, 5% was paid by Irish-owned multinationals, while 7% came from non-multinationals.
The report said the top 10 companies accounted for 56% of corporation tax receipts in 2025, a slight decline from 57% in 2024.
The overall effective tax rate for companies was 9.9%.
For foreign-owned multinationals it was 10%, while for Irish-owned multinationals it was 9.9%.
Various tax reliefs and deductions are allowed so companies can reduce their effective tax rate from the headline rate of 12.5%.
The Revenue Commissioners offers phased payment arrangements for taxpayers in difficulty.
At the end of last year there were 18,653 arrangements in place, including €708m under a debt warehouse scheme.
It said last year the total outstanding debt was reduced from €3.1 billion to €2.3 billion.
The Revenue Commissioners has also expanded AI training for its staff.
It said it had strong governance processes to ensure AI was “safe, lawful and ethical.”
It said it also seized 40,000kgs of drugs valued at €191m last year.
