The Treasury Secretary told CBS the proposal, aimed at billionaires, would increase tax revenues.
The Pandora Papers have revealed how world leaders and billionaires are hiding vast sums of money in offshore accounts and mysterious companies. Follow Newsweek's liveblog for all the latest.
Numbers are on track to rise 26 percent this year.
Analysts estimate that $100 billion is diverted from the American government's pocket every year as a result of corporate tax avoidance.
Mourinho was named in a Sunday Times investigation.
Imran Khan criticized for hypocrisy after slamming PM Nawaz Sharif for links to off-shore companies.
Cameron's late father Ian reportedly set up an offshore investment fund.
Both fall into the "morally wrong" category, but what is legal/illegal?
A spokeswoman for the U.K. prime minister said it was a "private matter."
The benefits of corporate citizenship should be removed from any company that abandons America.
The HSBC whistleblower discusses keeping touch with reality and what the bank was really like.
The Church of England priest and former chairman of HSBC denies all knowledge of tax avoidance scandal as fight breaks out in City church
Report from coalition of trade unions and campaign groups estimates €713 million in tax avoided in France.
Tax expert Richard Murphy says it is "impossible" tax avoidance claims didn't arise over government appointment.
U.S. prosecutors have stepped up efforts to establish whether HSBC helped its American customers to evade taxes.
The bank has been accused of helping its customers to 'dodge millions in tax'
Campaign group Amazon Anonymous are encouraging shoppers to have an Amazon-free Chrismas