In total Britain lost a net 10,800 millionaires to migration last year, a 157 per cent increase on 2023, meaning it lost more wealthy residents than any other country except China.
A limit we might well be over…..
To remind about the Laffer Curve. It is possible to talk about a societal such curve. But it’s also true that each and every tax has its own deadweight cost. Taxing this, in this manner, over here, prevents more economic activity than raising the same sum in revenues from taxing that other thing, in that other manner, over there.
Akin, very akin, to the marginal elasticity of demand with respect to price that we all know is true in other parts of the economy. A tax change here changes behaviour – and thus the amount of activity that revenue can be skimmed off – more than one over there.
Wealth taxes are known to have higher deadweights than income, both than consumption, all three than “repeated taxation of real property” ie, land value tax. And transactions taxes have the very tippy topmost deadweights.
What this means. It is, in fact, possible to squeeze more tax out of the British economy. Other countries manage to do so out of theirs after all. But to do so requires doing what those others do as well. Abolish all those marginal in revenue terms taxes on wealth and the acqusition, possession and passing on of it. And go get the revenue from a swingeing rise in VAT and rates.
Which is, of course, a regressive tax change, not a progressive one. But then that’s also always true. You don;t get much revenue from taxing the rich because there aren’t very many of them. There’re lots of poorer people so that’s who you have to tax.