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I started out with the intention of writing just one article on this subject, but it has become three. It’s a big subject … (Here is part one and here is part two, if you are not already up to speed)

The latest polls show Labour comfortably in excess of 400 seats, maybe even 500.

They are going to have such a thumping majority (with less than 50% of the vote - how crap is first past the post), together with a Blob which, broadly speaking, is theologically aligned, that they are going to be able to do pretty much what they like. There is scope for a lot of invasive government. The socialist mindset does not respect private property. It feels entitled to it. So today I wanted to further explore wealth taxes and what Labour might do, should the socialist-leaning instincts in the party come to the fore during those first 100 days and beyond.

Wealth taxes are hard to collect

Let us start with the golden rule of taxation, something with which readers of Daylight Robbery, the definitive book on taxation, will be familiar, as articulated by Louis XIV’s minister of finance, Jean-Baptiste Colbert.

The art of taxation consists of so plucking the goose as to obtain the most possible feathers with the least possible hissing

(If you haven’t read Daylight Robbery - How Tax Shaped Our Past and Will Change Our Future, by the way, I urge you too. I think it’s the best of my books and one of the things I will go to my grave feeling proud of).

With that Colbert quote in mind, let us turn to wealth taxes. I’ve often argued that one reason we don’t see as many wealth taxes as you might expect is that, in practical terms, they are not as simple as they might seem. Income Tax works well because it is easy to collect. The employer collects it for the government - and faces harsh penalties if they don’t, so the onus is on them. Ditto VAT: only it is the seller on whom the responsibility to collect falls.

Wealth taxes, however, rely on declarations. There is much more scope for non-compliance, whether deliberate or accidental. Say the government wanted to impose a 5% net worth tax. It would have to find out about your real estate, both at home and abroad, and reach a fair valuation for that. It would have to find out about your stocks and bonds, your possessions, your vehicles, your savings, your ISAs, your pensions, your cryptocurrencies, your art, your antiques. Anyone who has ever had to value an estate for Inheritance Tax purposes knows what