According to The Times, Queen Elizabeth, the Queen Mother, set up a special family trust fund for her great-grandchildren in 1994 when Harry was just 10 years old. Elizabeth is reported to have deposited £19 million into the fund, a share of which Harry is eligible to receive upon turning 40.
The Prince’s late great-grandmother is thought to have passed on the money this way to prevent Harry and her other great-grandchildren from having to pay inheritance tax.

Reports at the time stated that the money was to be distributed among her younger relatives in two payments: the first when they turned 21, and the second when they turned 40.
Whilst how much each grandchild was set to inherit was kept private, it was reported that Harry was due to inherit more than his brother William, owing to William’s inheritance of the Duchy of Cornwall upon becoming the Prince of Wales.

Whilst how much each grandchild was set to inherit was kept private, it was reported that Harry was due to inherit more than his brother William, owing to William’s inheritance of the Duchy of Cornwall upon becoming the Prince of Wales.
Reports from various UK outlets suggested that William and Harry were set to receive £6 million when they turned 21, with the bulk going to Harry. A further £8 million was said to have been set aside for the brothers when they reached 40.

Harry always had a close bond with his great-grandmother, and in an interview with Tom Bradby last year, following the release of his bombshell memoir Spare, he shared the sweet nickname he had for her.

Harry said: “I had a proper laugh with my Gan-Gan then. You know, she was so close to my father as well, and that relationship was something I recognised but never really thought about in detail at the time.