US corporate giants such as Apple, Walmart and General Electric have stashed $1.4tn (£980bn) in tax havens, despite receiving trillions of dollars in taxpayer support, according to a report by anti-poverty charity Oxfam.
The sum, larger than the economic output of Russia, South Korea and Spain, is held in an “opaque and secretive network” of 1,608 subsidiaries based offshore, said Oxfam.