King Charles III and Prince William have shown the public, for the first time, how much tax they paid in the 2024–25 financial year. Buckingham Palace reported that King Charles paid £12.9 million, and Prince William paid £7.76 million, on their private income and investments. This move is a new step towards financial openness in the British royal family.

The main reason for these public tax figures is King Charles’s aim to make the monarchy more modern and transparent. Usually, they do not have to share this information, but both chose to do so.

Because of these published numbers, people now have a clearer idea of how the King and Prince pay tax on their personal earnings. This announcement also sets a new standard for openness about royal finances in the UK.