It depends how they define wealth. A pensioner on just a state pension living in a terraced house in a former slum area of London, which is now worth £1m, is not wealthy.
This is the critical issue. Well, one of them!
You could have a mansion tax set at say, £2m.
If you can show, by divulging all your 'wealth', that you are say, a pensioner in London with a £2m house, but nowt else, you pay nothing. The exchequer takes the house on death. If family bitch, they pay the tax over time and get the house on Mum's death. If you have a second home, you pay up, or hand over one (you can choose) to the state. Any house in the umbrella of a company pays it. Simple really. I'm sure it's not!
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