The tax administration is starting to process data received from fuel flow monitoring systems installed at gas stations, and to conduct unscheduled inspections when they become aware that businesses' systems have remained inoperative for many hours, the head of the Independent Authority of Public Revenue, Giorgos Pitsilis, said on Friday.
Almost half a million taxpayers were added to the long list of debtors to the state in the month of September, according to the latest data from the Independent Authority for Public Revenue.
The authority's figures are a reflection of citizens' increasing inability to pay their taxes, with 410,000 not paying their second income tax installment and the ENFIA property tax in September.
The Greek government and the country's creditors are considering an extension to Tuesday's deadline for voluntary declarations of hidden incomes.
It is likely that they will decide to extend the deadline as many taxpayers have been scrambling to settle mistakes in previous declarations and avoid having to pay the high taxation and fines dictated by law in recent weeks.
Apartments, plots of land, stores and office buildings belonging to people or businesses with debts to the tax authorities will soon be auctioned at prices below those used for tax purposes ("objective values") as the law dictates foreclosure sales at market rates instead of objective values, as in the case of debts to banks.
The shortfall in tax revenues looks unlikely to shrink anytime soon as hundreds of thousands of taxpayers are unable to meet their tax obligations due to overtaxation. Data from the Independent Authority for Public Revenue revealed on Thursday that in August alone - even before the start of payments for the Single Property Tax (ENFIA) - unpaid taxes amounted to almost 1 billion euros.