There was much interest in the move by King Charles to reveal for the first time how much income tax he pays, but in ways, the numbers that emerged this past week add to the longstanding opaqueness around royal finances.

King to end 189 years of history by moving out of Buckingham Palace, royals reveal as the monarch becomes the first ever to share the amount of tax paid

We know the monarch paid £24.6m in tax over the last two years, but we still don’t know how wealthy he actually is