The Crown’s annual tax return, usually a formality, has landed with a thud at HM Revenue & Customs. This year, three deductions flagged by the Palace’s accountants have constitutional experts questioning the very nature of sovereign immunity. As a veteran of the City, I can tell you that when the King’s auditors start playing fast and loose with the rules, the market takes note.
The first deduction: £1.2 million for “maintenance of ceremonial state coaches”. On the surface, this might seem a quaint relic. But look closer: these coaches are not merely for pageantry. They are used in state openings and diplomatic receptions, effectively serving as mobile extensions of the Foreign Office. If the Crown can claim tax relief on such assets, where does sovereign immunity begin and end?
Second: £875,000 for “consultancy fees on constitutional reform”. This is a stunner. Advisers are being paid to draft position papers on limiting the monarch’s powers, yet the expenses are being passed off as tax-deductible. It is akin to a company deducting the cost of hiring consultants to lobby for its own dissolution. The logic is tortured. If the Crown is genuinely considering ceding authority, it should not be able to treat those costs as business expenses.
Third and most baffling: £3.4 million for “private security upgrades at Balmoral”. The palace argues that national security necessitates these measures. However, the tax code specifically disallows deductions for personal living expenses. A private residence, even one used for summer holidays, should not subsidise the public purse. The Queen Mother’s old digs are hardly a branch of MI5.
Constitutional experts are split. Some argue that sovereign immunity protects the monarch from tax scrutiny entirely. Others note that the King voluntarily pays tax on his private income, a tradition dating from 1993. But this is not private income; it is the Sovereign Grant, public money funneled through the Treasury. To deduct expenses from that grant is double-dipping of the highest order.
Market reaction has been muted so far, but gilt yields twitched upward on the news. Investors hate uncertainty, especially when it touches the Crown. A constitutional crisis, however remote, would send capital fleeing for the exits. The pound has already slipped a quarter of a cent against the dollar. Watch for the Bank of England’s next move.
The real issue here is fiscal responsibility. The Crown’s estate is vast, but its tax affairs have long been opaque. If the King wants to maintain public trust, he should release the full tax return and waive sovereign immunity for all income, including the Sovereign Grant. Anything less is a breach of the social contract.
Alastair Thorne, Chief Financial Editor








