Legendary Microsoft founder Bill Gates has “paid more than anyone in taxes” – shelling out more than $10 billion over the years. QA EDITOR QA Contrib Contrib 

But if a controversial new tax proposal passes, his tax bill could soar even higher – and seriously erode his $US106.3 billion fortune.

Mr Gates – the world’s second-richest person behind Amazon founder Jeff Bezos, according to Forbes – is one of several billionaires who have slammed US presidential candidate Elizabeth Warren.

Speaking with New York Times reporter Andrew Ross Sorkin at the DealBook Conference yesterday, Mr Gates was asked about the Democrats’ tax proposal.