In addition to the annual financial allocation of the British government to the royal family, the second largest income of the royal family is private money. Private funds mainly come from the duchy of Lancaster and are exclusively owned by the king. Every year, part of the government revenue is allocated to the monarch for exclusive use.
The third income comes entirely from the king's private property, including the palace in Barmor and Sandelin Palace in the east of England. Unlike Buckingham Palace and Windsor Castle, which only have the right to use, these two properties are truly privately owned by the royal family. In addition, the king's personal investment income and various rare collections (such as renting the collected works of art for exhibition) are priceless. This part of income and expenditure does not need to be reported.