Prince William has outlined a plan to deal with his disgraced uncle, Prince Andrew, once he becomes king, according to a new report.

The future king, 43, reportedly plans to stop at nothing to ensure that the disgraced Duke of York faces full accountability for the numerous controversies that have tarnished the Firm’s reputation over the years, Radar Online reports.

The Prince of Wales is said to be determined to revamp the dwindling public image of the British monarchy when he ascends to the throne.

This, in turn, means taking a far less diplomatic approach than his father, King Charles.

“William is far more hard-nosed than Charles when it comes to protecting the monarchy’s reputation,” one former courtier told the outlet.

“He’s fully aware of the harm Andrew has caused to the monarchy’s reputation and won’t shy away from actions his grandmother or father may have steered clear of,” they added.

“Andrew’s dukedom could be up for discussion when William takes the throne,” an insider said.

According to the report, William will be looking to Parliament for help in stripping royal titles through legislation.

What’s more, the monarch has the power to revoke HRH titles through letters patent — something he is reportedly thinking of doing.

The prince and princess titles can also be removed with a Royal Warrant, though insiders said it’s unlikely that this approach will receive government backing as it may be deemed a personal matter, the outlet adds.

“The public deserves to know their monarchy is free from scandal,” the future king reportedly told his inner circle, per the outlet.

The Post has reached out to Kensington Palace for comment.

According to author and historian Andrew Lownie, William and his scandal-scarred uncle are said to have fallen out over “nasty remarks” Andrew made about the Princess of Wales.

Lownie added that the alleged remarks came from a place of jealousy, as the duke was envious that Princess Catherine had become a key figure in the Firm following the death of Queen Elizabeth II.

The alleged comments had resulted in the breakdown of their relationship.

Follow The Post’s royal family live blog for the latest pics, news, exclusive details and more

It comes just days after Lownie, who details various tidbits about the disgraced prince in his latest biography, “Entitled: The Rise and Fall of the House of York,” claimed the duke doesn’t have a bright future regarding his royal and private lives.

Lownie said Andrew — who recently won his yearslong fight to stay at the Royal Lodge — is already “living the life of a retired man.”

The author added that Andrew had been most affected by the stripping of his royal titles following his many controversies — including his close association with late sex offender and financier Jeffrey Epstein, the sexual abuse lawsuit filed against him by the late Virginia Giuffre and his links to alleged Chinese spy Yang Tengbo.

“What most annoys him is his lack of a royal status. That’s what really sort of gave him his whole sense of identity,” Lownie told the outlet.

“And that’s, you know, it’s not being able to put on his uniforms and strut around and being self-important,” he added.

Indeed, Andrew’s fate within the monarchy had been reportedly decided by William already.

Insiders suggest that William will be eager to evict Andrew and his ex-wife, Sarah Ferguson, from the Royal Lodge, where the pair have lived since 2004.