Over 67 million cigarettes and 6,000 kilos of drugs were seized
The Revenue Commissioners collected €54.5bn in taxes and duties for the exchequer last year.
It has published preliminary results for 2018, including tax and duty collected.
Over €13.5bn was also collected by Revenue on behalf of other departments, agencies and EU member states.
During 2018, Revenue completed 572,785 audit and compliance interventions - which yielded €572.6m, seized 158 unlicensed gaming machines, settled 22 tax avoidance cases and secured 17 criminal convictions.
Last year Revenue seized over 67 million cigarettes - including 23.5 million discovered at a counterfeit cigarette factory in March.
These had an estimated potential loss to the exchequer of €37.5m.
While 6,487.9 kilos of drugs, with an estimated value of just over €33m, were also seized.
Commenting on the results, Revenue Chairman Niall Cody said: "Continued strong levels of timely, voluntary compliance by taxpayers reflect the reality that the vast majority of individuals and businesses pay the right amount of tax, on time.
"We support voluntary compliance by making it as easy as possible, and we are focused on optimising our service to taxpayers.
"We acknowledge their engagement and that of tax practitioners and agents in the very strong compliance we have seen again in 2018."
"Revenue continues to target and disrupt shadow economy activities."