The 33-year-old British royal achieved the majority of his personal wealth when he turned 30, which meant he was able to inherit the money and property that was left to him by his late mother, Princess Diana.
Allied to this, Prince Harry and his elder brother, Prince William, both gained access to a £450 000 (approximately R7.9 million) per year investment profit when they turned 21, according to the Daily Express newspaper.
Prince Harry supplemented his inheritance with his salary during his time with the Army Air Corps, while he is also paid an allowance by his father, Prince Charles, with that money being used to cover most of his staff costs and wardrobe expenses.
What's more, Prince Harry hasn't had to worry about the cost of renting a house over the last few years, as he's lived in Kensington Palace, a royal residence, since 2012.
Despite his personal wealth, former royal chef Darren McGrady recently claimed that Prince Harry and his brother were both fans of McDonald's during their youth.
Darren said that their mother used to take the boys to the fastfood chain because they loved collecting the free toys they'd find in their meals.
He recalled: "I remember the Princess came into the kitchen one day and said, 'Cancel lunch for the boys I'm taking them out, we're going to McDonald's. And I said, 'Oh my god your royal highness, I can do that, I can do burgers.'
"And she said, 'No, it's the toy they want.' Yeah, the boys loved McDonald's, and going out to pizza, and having potato skins - sort of the American foods. They were royal princes but had children's palates."