Since 2009, many attempts have been made to crack down on abuses. More than 700 tax transparency deals have been signed globally. Places including Switzerland, the Channel Islands and Luxembourg have tightened the rules, but Panama and the British Virgin Islands are among those criticized for not doing enough. The Organization for Economic Cooperation and Development and the Group of 20 nations have persuaded more than 90 countries to share financial data in a bid to crack down on secret dealings.
Mossack Fonseca
The Panama Papers make it clear that major banks are big drivers behind the creation of hard-to-trace companies in the British Virgin Islands, Panama and other offshore havens. They list nearly 15,600 paper companies that banks set up for clients who want keep their finances under wraps, including thousands created by international giants UBS and HSBC.
Mossack Fonseca is one of the world's top creators of shell companies, corporate structures that can be used to hide ownership of assets. The law firm's leaked internal files contain information on 214,488 offshore entities connected to people in more than 200 countries and territories.
The offshore system relies on a sprawling global industry of bankers, lawyers, accountants and these go-betweens who work together to protect their clients' secrets. These secrecy experts use anonymous companies, trusts and other paper entities to create complex structures that can be used to disguise the origins of dirty money.
The Mossack Fonseca law firm has worked closely with big banks and big law firms in places like The Netherlands, Mexico, the United States and Switzerland, helping clients move money or slash their tax bills, the secret records show.
Big U.S. firms hold $2.1 trillion overseas to avoid taxes
Not surprisingly, in October 2015, an economic study revealed that the 500 largest American companies hold more than $2.1 trillion in accumulated profits offshore to avoid U.S. taxes and would collectively owe an estimated $620 billion in U.S. taxes if they repatriated the funds.
The study, by Citizens for Tax Justice and the U.S. Public Interest Research Group Education Fund, found that nearly three-quarters of the firms on the Fortune 500 list of biggest American companies by gross revenue operate tax haven subsidiaries in countries like Bermuda, Ireland, Luxembourg and the Netherlands.
Apple was holding $181.1 billion offshore, more than any other U.S. company, and would owe an estimated $59.2 billion in U.S. taxes if it tried to bring the money back to the United States from its three overseas tax havens, the study said.
General Electric has booked $119 billion offshore in 18 tax havens, software firm Microsoft is holding $108.3 billion in five tax haven subsidiaries and drug company Pfizer is holding $74 billion in 151 subsidiaries, the study said.
"At least 358 companies, nearly 72 percent of the Fortune 500, operate subsidiaries in tax haven jurisdictions as of the end of 2014," the study said. "All told these 358 companies maintain at least 7,622 tax haven subsidiaries."
Fortune 500 companies hold more than $2.1 trillion in accumulated profits offshore to avoid taxes, with just 30 of the firms accounting for $1.4 trillion of that amount, or 65 percent, the study found.
In September 2015, a U.S. federal judge authorized the Internal Revenue Service to seek the names of Americans using accounts at two Belize banks.
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