Stop Tax Haven Abuse Act

Stop Tax Haven Abuse Act - Authorizes the Secretary of the Treasury to impose restrictions on foreign jurisdictions or financial institutions operating in the United States that are of primary money laundering concern or that significantly impede U.S. tax enforcement.

Amends the Internal Revenue Code to:

• expand reporting requirements for U.S. persons who hold an interest in a passive foreign investment company;
• establish a rebuttable presumption against the validity of transactions by institutions that do not comply with reporting requirements under the Foreign Account Tax Compliance Act;
• treat certain foreign corporations managed and controlled primarily in the United States as domestic corporations for tax purposes;
• require tax withholding agents and financial institutions to report certain information about beneficial owners of foreign-owned financial accounts;
• treat swap payments sent offshore as taxable U.S. source income; and
• impose additional requirements for third party summonses used to obtain information in tax investigations that do not identify the person with respect to whose liability the summons is issued (i.e., John Doe summons).

Amends the Securities Exchange Act of 1934 to: (1) require corporations registered with the Securities and Exchange Commission (SEC) to report annually, on a country-by country basis, on employees, gross revenues, payments made to governments, and other financial information; and (2) impose a fine for failure to disclose any holdings or transactions involving equity or debt instruments known to involve a foreign entity that would otherwise be subject to disclosure requirements.

Makes investment advisers and persons engaged in forming new business entities subject to anti-money laundering requirements.

Imposes new restrictions on U.S. corporations and other entities with foreign income with respect to: (1) tax deductions allocable to deferred foreign income, (2) the recalculation of foreign income taxes, (3) intangible property transferred overseas, (4) tax evasion activities by U.S. corporations reincorporating in a foreign country, and (5) loans to U.S. shareholders from controlled foreign corporations.