Global super-rich may have hidden $3.55tn from tax officials, says Oxfam

Charity calls for a levy on the very richest and the closing of tax loopholes in its report on offshore wealth

The global super-rich may have as much as $3.55tn hidden away from tax authorities, according to estimates by Oxfam.

The charity renewed its call for a wealth levy and urged governments to close tax loopholes as it published its latest analysis of the scale of offshore holdings.