For purposes of income tax in the United States, U.S. persons owning shares of a passive foreign investment company (PFIC) may choose between (i) current taxation on the income of the PFIC or (ii) deferral of such income subject to a deemed tax and interest regime. The provision was enacted as part of the Tax Reform Act of 1986 as a way of placing owners of offshore investment funds on a similar footing to owners of U.S. investment funds (regulated investment companies). The original provisions applied for all foreign corporations meeting either an income or an asset test. However, 1997 amendments limited the application in the case of U.S. Shareholders of controlled foreign corporations.