By Margaret O’Sullivan (March 12, 2024, 1:40 PM EDT) -- There is increasing uncertainty about the future of U.S. estate tax. On the one hand, under U.S. legislation that temporarily halved the lifetime exemption amount passed during the Trump administration, the lifetime exclusion amount is set to decrease on Jan. 1, 2026, to US$5 million adjusted for inflation since 2011, unless legislation is passed by Congress....