In Australia, if you earn over (I think) $50k per year and are on Medicare (like the NHS) you are taxed an extra 1%. If you take out private health insurance, this 1% is waived. So, sort of like what you are suggesting, although some of everyone's money still goes to Medicare.
In Australia, if you earn over (I think) $50k per year and are on Medicare (like the NHS) you are taxed an extra 1%. If you take out private health insurance, this 1% is waived. So, sort of like what you are suggesting, although some of everyone's money still goes to Medicare.