Consume Product

Should be relatively easy to calculate. Let's take the US for instance, GDP for 2022 was $25.46T, ~3% of that is: $764B. US population is ~340M and we can probably assume on average 4 people per household, this should cover everything from average family, to large families and city dwellers sharing tiny apartments.

This gives me $8,988/yr for every household.

Now income after tax is very tricky because of the huge difference between different jobs, for some $9k is a piss in the ocean, but for many who doesn't earn a lot it could be the reason they had to sell their house to afford the tax. From what I could find, average income in the poorer states is around $40k/yr and $80k/yr in the richer states. And that's all professions included, plus billionaires and corrupt politicians.

So around 14% - 26% of income would probably be a good estimate. And that's the sad part because that's how much you pay on a wage that's maybe twice as high as the wage you'd make in most EU countries, were income tax for those lower and middle class wages rarely exceeds 20% - 30% and property tax is non existing or very low.