The couple’s estimated annual outgoings are said to be around £5 million – a combination of property, mortgage repayments, staff, security and the £18,000 they are repaying to the British taxpayer to cover the renovations of their UK home Frogmore Cottage.
While Prince Harry may have planned to settle in the States for good, he is not expected to become a naturalised US citizen.
Applying for a green card or US citizenship could mean having to relinquish his royal titles.
Becoming a US citizen could also make him liable for tax on worldwide income – including the money he receives from UK-based trusts.
