King Charles III has ascended to the U.K. throne, but he won't have to pay the U.K.'s inheritance tax on the massive wealth he inherits from his late mother, Queen Elizabeth II. That's because of a deal the royals made with the government nearly 30 years ago. Regular citizens must pay the standard inheritance tax rate of 40% on any part of an estate that's valued above a threshold of 325,000 pounds (about $374,000). There are common exceptions, such as money left to a spouse or a charity. But under an agreement with the monarchy that then-Prime Minister John Major announced in 1993, assets passing from a sovereign to ... (full story)