Prince Harry offered to repay the £2.4million worth of taxpayers' money spent on his Frogmore Cottage renovations to show he was serious about quitting the royals, it has been claimed.

Buckingham Palace said in a statement yesterday how the Sussexes will repay Sovereign Grant expenditure for the refurbishment of their UK home.

A royal expert told The Mail on Sunday that Prince Harry made the gesture to show his intentions were genuine almost immediately after negotiations over his future began.

The source said: "He put it on the table very quickly.

"It certainly got things moving. It was clear he was serious."

Harry and Meghan's ambition to step away from the royal family can be traced back to last May, a year after their wedding in Windsor, it has been claimed.

Prince Harry brought up the repay of public funding quickly during the crunch meeting at Sandringham

The Prince had reportedly begged to meet his grandmother in the New Year in hope to move things forward, but was asked to outline the plans with his father, Prince Charles, beforehand.

The Duke felt forced to go public in defiance of the Queen to get his family to take his threat to walk away seriously, and decided to post the announcement on social media, it was claimed.

The Sussexes wrote on Instagram : "We intend to step back as ‘senior’ members of the Royal Family and work to become financially independent."

The couple will pay back the £2.4million public fund used to refurbish Frogmore Cottage
The couple will not use their HRH titles from the spring of 2020

And just four days after the bold statement, Harry was called for an emergency meeting held by the Queen at Sandringham along with other senior royals.

But Meghan Markle stayed out of the crunch talks after the couple decided 'it wasn't necessary for the Duchess to join'.

The 93-year-old monarch was said to be bitterly disappointed by the Sussexes' desire to step back from public life while splitting their time between the UK and North America.

Yesterday, the Palace shared details of the couple's future as they embark on the next chapter of their lives.

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The statement said: "With The Queen’s blessing, the Sussexes will continue to maintain their private patronages and associations.

"While they can no longer formally represent The Queen, the Sussexes have made clear that everything they do will continue to uphold the values of Her Majesty.

"The Sussexes will not use their HRH titles as they are no longer working members of the Royal Family.

"The Duke and Duchess of Sussex have shared their wish to repay Sovereign Grant expenditure for the refurbishment of Frogmore Cottage, which will remain their UK family home.

"This new model will take effect in the spring of 2020."