Whilst our national insurance is calculated on income, the way that it differs from income tax is that it is set directly aside for publicly funding welfare and healthcare. A public good.
Whereas income tax is often spent more on whichever scam or genocide our government is currently keen to fund.
Of course. But its lies. Taxation does not fund expenditure. The Government literally creates the money into existence when it spends. Input output scenarios dont relate to how the Government gets its money. That is more about balancing economy.
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Or you can organise a tax free pension.
Whereas income tax is often spent more on whichever scam or genocide our government is currently keen to fund.
Since government can simply make the money.
However the input output equation is what a lot of people understand and how it is framed.
https://youtu.be/zXJCyffu8Og
Interactive version: https://www.geogebra.org/m/p97htgc3