BHP Billiton reveals minuscule Singapore tax bill as ATO chases it for $500m

By Heath Aston, Political Correspondent
Updated April 28 2015 - 4:19pm, first published 3:40pm
The ATO says BHP Billiton owes $500 million in unpaid taxes and fines. Photo: Ross Swanborough
The ATO says BHP Billiton owes $500 million in unpaid taxes and fines. Photo: Ross Swanborough
The ATO says BHP Billiton owes $500 million in unpaid taxes and fines. Photo: Ross Swanborough
The ATO says BHP Billiton owes $500 million in unpaid taxes and fines. Photo: Ross Swanborough
The ATO says BHP Billiton owes $500 million in unpaid taxes and fines. Photo: Ross Swanborough
The ATO says BHP Billiton owes $500 million in unpaid taxes and fines. Photo: Ross Swanborough

BHP Billiton has revealed the true extent of its sweetheart deal with tax authorities in Singapore and acknowledged that the Australian Tax Office is chasing it for $500 million in unpaid taxes and fines in relation to the so-called "Singapore sling".