€6 million euro has been collected over the past 48 hours – bringing the total compliance rate to 88 per cent.
Those who haven’t paid are being warned that they could be brought before the courts.
A last-minute scramble to pay the property tax is expected today ahead of midnight’s deadline.
Interest will kick-in immediately once the deadline passes as the Revenue puts its compliance programme in action.
Officials say tougher penalties await those who continue to ignore the ultimatum – including deduction from wages, referral of the debt to a Sheriff or solicitor and the prospect of being brought before the courts.
Those who deliberately undervalue their home will also be under scrutiny with 2,000 people having already owned up to under-declaring since November.
And there’s also expected to be a surge in the number paying arrears on their 2012 household charge with 2,000 payments made in the last couple of days.