Republic, which advocates substituting an elected head of state for the monarchy, has asked Her Majesty's Revenue and Customs to determine if a court ruling last year means the Duchy of Cornwall is a corporation for tax purposes, The Guardian reported. The group suggested the duchy is "a well-entrenched tax avoidance scheme."
The prince received 18 million pounds ($29 million) from the duchy last year, which has large real estate holdings and is valued at 700 million pounds ($131 million). The prince's advisers say it is not "a separate legal entity for tax purposes" but a judge on the information rights tribunal found it is separate from the Prince of Wales.
Queen Elizabeth II has paid income and capital gains taxes since 1992, in a deal that exempted her from estate taxes when Elizabeth the Queen Mother died a decade later. Charles paid 5 million pounds ($8 million) in income tax last year, and his office says the amount was calculated at the top rate and his return was audited by HMRC.
Charles also received 2.2 million pounds ($3.6 million) in government grants last year to pay for official travel and running expenses for Clarence House, his official London residence.