At the Senate Finance Committee’s hearing on the Cayman Islands and offshore tax evasion last week, Senator Charles Grassley reiterated the importance of the new IRS Whistleblower program to combat tax evasion, but also stressed the need for Congress to provide the IRS greater tools to address offshore tax evasion.

The July 24 hearing focused on GAO’s investigation into the Ugland House, a law firm’s office building in the Cayman Islands that is the registered address of thousands of corporations. The hearing also examined
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This past week the IRS Commissioner of the Large and Midsized Business Division summarized the IRS’s efforts to combat offshore tax evasion. He predicted that whistleblowers will become increasingly important to the IRS’ efforts, given the existence of the new IRS Whistleblower rewards.

IRS Commissioner Frank Ng described to Congress the “critical importance to tax administration in this country — the practice of sheltering U.S. earned income in foreign jurisdictions as a means of avoiding U.S. taxation.”

He identified as “Tier I” issues the following transactions::

Transfer of intangibles/cost sharing
Abusive foreign tax credit transactions
Abusive hybrid instrument transactions
Transfer pricing
Foreign earnings repatriation
The IRS Commissioner described some of what has been revealed through ongoing investigations:

Ongoing IRS Investigations

In the area of ongoing investigations, let me start by laying out some of the facts about one case that I am able to discuss, because the case that I am about to describe is a matter of public record. It involves a major Swiss bank.
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