Prince William has become a billionaire and is now wealthier than his father, King Charles III, according to newly published Sovereign Grant accounts. The annual report reveals that William's net worth stands at £1.2 billion, largely due to the Duchy of Cornwall, which he inherited upon becoming heir to the throne four years ago.
William's Income and Tax Contributions
William received a private income of £21.6 million from the Duchy of Cornwall in 2025-26. Since becoming Prince of Wales, he has paid more than £20 million in tax. Specifically, he contributed £7.76 million in income and capital gains tax in 2024-25 and £8.34 million in 2023-24.
Comparison with King Charles III
In contrast, King Charles III was listed in the Sunday Times Rich List with a personal fortune of £640 million. This marked an increase of £30 million from the previous year. The Sovereign Grant, which funds the royal household's official duties, has been used to provide greater transparency regarding royal finances.
Royal Residences and Transparency
William has also decided to forgo personal benefit from the controversial £1.5 million annual rent generated by the abandoned Dartmoor Prison. Meanwhile, King Charles and Queen Camilla will not move into Buckingham Palace despite the completion of a £370 million refurbishment next year. A palace spokesperson stated, 'His Majesty retains huge affection for Buckingham Palace and a deep respect for its role in royal and public life. It will be a buzzing hive of royal activity in every other way.' The King has chosen Clarence House as his official London residence for the remainder of his reign.
