Prince William pays up to £7 million in income tax a year, it can be revealed. The figure puts the heir to the throne in the top 0.002 per cent of taxpayers in the UK. For years, William has resisted calls to reveal his tax bill, quoting the rights shared by any private citizen. The majority of his income comes from the more than £20 million a year he receives from the Duchy of Cornwall, a private estate of land worth about £1.1 billion bestowed on every heir to the throne since the 14th century