It's 40% above a threshold; the trouble is that the threshold is laughably tiny when you compare it to house prices.
It's also relatively easily defeated by transferring assets to others well in advance of your death, which is the kind of thing very wealthy people are more likely to be able to arrange.
It's also relatively easily defeated by transferring assets to others well in advance of your death, which is the kind of thing very wealthy people are more likely to be able to arrange.