Wonderful article, thank you. The royals do pay income tax. They don't pay income tax on what is passed monarch to monarch other family members do pay inheritance tax thats why Princess Margaret's children had to sell much of her jewels to pay the tax. More financial transparency and public access to buildings owned in the public trust should be implemented. The monarch's portfolio should be analyzed there aren't any nefarious investments. Most wealthy families use trusts to avoid large inheritance tax bills like the Duke of Westminster for example. If the taxation becomes so arduous and the monarch's wealth too diminished there is a tipping point where the duty, scrutiny and restrictions become an extreme burden not worth bearing. The monarch pays all of the working royals a salary out of their private funds. Their wealth has to sustain the monarchy in perpetuity. We have seen in other royal families like Spain their lack of wealth made them vulnerable to corruption. Just my two cents from America.