A large portion of the future King of England's net worth comes from a roughly $12.3 million inheritance, received from the estate of his late mother, Princess Diana, on his 30th birthday in 2012. His father, Prince Charles, covers the cost of staff, travel and official wardrobes for Prince William, Kate Middleton and Prince Harry, which reached $4.6 million for the year ended March 31, 2015. This sizeable allowance does not include personal staff, but the bill for some Prince William's major travel expenses not funded by his father is often paid by the countries he visits.
Despite his British royal family net worth, Prince William works as a helicopter pilot for East Anglian Air Ambulance. He donates his entire $62,000 annual salary to charity.