"In the UK, taxes like Income Tax and National Insurance (NI) fund public services, including the National Health Service (NHS), which draws the majority of its budget from general taxes, with about 18% of an average citizen's income tax portion going to health, though specific percentages vary, with recent data showing healthcare as around 20% of total UK government spending. The UK's overall tax-to-GDP ratio was 35.3% in 2023, slightly above the OECD average. "