Ruffini: 'Over 1,200 billion in tax credits in stock' - News.com.au. For the collection warehouse, the latest data, referring to 31 December 2023, "amount overall to over 1.200 billion, and are contained in approximately 163 million tax bills, debit notices and enforcement assessment notices, an impressive amount" "A good part of this amount is not recoverable" and "101 billion remain to be collected", Ruffini says, adding that for debtors there are "limitations to collection due to interventions by the legislator"