There is this idea extant that the British pay more out of their wages in tax than Americans do.
In the USA, tax paid amounts to about 25% of GDP (and that includes a lot of rich people who contrive to pay no tax at all through various dodges, so the less well off pay a higher proportion of what they earn). But sorting out the American tax system is an arcane art, probably involving the sacrifice of virgins (footnote) on hilltops at midnight under a gibbous moon.
In Britain the rate of income tax is
Up to £12,570 ... 0%
Basic rate: £12,571 to £50,270 ... 20%
Higher rate: £50,271 to £150,000 ... 40%
Additional rate: over £150,000 ... 45%
The NHS is free to everyone at the point of delivery, though we do have a flat-rate prescription charge of £9.35 per item (goes down to nothing when you get your pension), and if you need many medications every month you can get a prescription prepayment certificate (PPC) at £30.25 for three months, £108.10 for a year. That covers everything except (I think) wigs and surgical bras and support garments. You have to pay for support stockings as each one an item rather than a pair of them being an item... but these are details, I feel.
(footnote) virgin woodlice.