@7days.
I did at one point do the maths because I moved to US for four years.
They are taxed on their wages- federal income tax, social security tax, Medicare tax and, if applicable, state income tax, and city income tax. This is all reported to you on a W-2 at the end of each tax year ( runs Jan-Dec)
There is also sales tax (similar to VAT) on the things you buy.
There is also property tax on your home, similar to council tax but only charged to the owners. Renters don’t pay property taxes, the LL does. But IRL, the rent charged is a bit higher to cover that cost to the LL so they can still make a bit of profit.
Their tax system is much more complex. You do your gross taxable income and then reduce that by deductions- standard or itemised. This then says what your taxable income is and the % tax on that varies by the taxable income bracket you fall into. These brackets thresholds differ based on whether you are single, married filing separate tax returns or married filing joint tax return.
But anyway, I seem to remember that for the US to switch to U.K. NHS universal system the average worker would see the an extra 2% tax taken from their pay. Compare that to the average % of income a US worker pays for health insurance, and most would save money in the long run. Remember health insurance is a bill they pay. It’s not a tax. That’s why their taxes are lower...the entire cost if healthcare is excluded and they pay it as a bill much like car insurance.
They might pay more under a U.K. NHS system than they would under US system while young, childless, healthy, but they’d slowly come out ahead as their health needs increased with childbirth, children, age, etc. It’s really a case of paying forward while young to have guarantee that any medical catastrophe- major accident, cancer, etc will not bankrupt you in middle or old age.