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Despite marrying into one of the most famous British families, Meghan is still an American citizen. And the Duchess of Sussex is now facing a tax nightmare as US officials are looking into whether Meghan and husband Prince Harry owe the American government a slice of their fortune.

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Because of her marriage to the British Prince, both the Duke and Duchess of Sussex tax returns to the US are being looked into.

This means the royal power couple may have to pay tax on not only Meghan’s $5million (£3.9million) but also Prince Harry's main source of private wealth, a yearly £300,000 trust fund on which he pays UK income tax.

Prince Harry’s money comes from a £20million inherited trust fund from Princess Diana and the Queen Mother.

Even Queen Elizabeth and Prince Charles’ finances could face scrutiny under the American tax rules, because they provide funding and support for the couple.