Farmers top the list of tax defaulters in last 12 years
Farmers are the biggest tax defaulters in Ireland.
They account for more than 10pc of all convictions, and were levied with fines totalling over €1,766,000 in the last 12 years.
Next on the list are company directors, followed by builders, building contractors, carpenters and plasterers.
Figures reveal Roscommon has the highest number of those failing to make income tax returns.
High rates were recorded across the North West and Midlands, where Longford, Leitrim, Offaly, and Donegal joined Roscommon to make up the top five.
Kilkenny is the most tax compliant county in Ireland.
The construction sector has more than double the offenders compared to any other sector, accounting for 35pc of all convictions.
Men accounted for 94.2pc of convictions, with women making up a mere 5.8pc.
Using 13 years of official Revenue figures, the RTÉ Investigations Unit analysed all recorded convictions in the period 2002 to 2014 for certain types of tax offences.
In total, over 11,000 people were convicted of failing to lodge income tax returns - with subsequent fines totalling more than €20m.
Dublin, largely because of its large share of the national population, registered the highest number with a total of 2,533 cases, while Kilkenny was lowest with just 65.
Specific sectors and geographical locations are targeted by the Revenue Commissioners each year, depending on its level of "risk".
A person convicted of failing to declare taxable income can be fined up to €5,000.
They may also receive a maximum prison sentence of 12 months.