In 2000, current spending on health care in the United Kingdom was 6.3 per cent of GDP, and the then Prime Minister Tony Blair committed his government to matching the average for health spending as a percentage of GDP in the 14 other countries of the European Union in 2000 (8.5 per cent) through increases in NHS spending.

Over the next few years spending on the NHS increased substantially, pushing total (public plus private) spending to 8.8 per cent of GDP by 2009. By then, however, the EU-14 spend (weighted for size of GDP and health spend, and minus the UK) had moved on to 10.1 per cent of GDP. Still, the gap between the UK and its European neighbours was closing.

Since then, however, the gap has started to widen (particularly against countries that weathered the global financial crisis better than the UK) and looks set to grow further. UK GDP is forecast to grow in real terms by around 15.2 per cent between 2014/15 and 2020/21. But on current plans UK public spending on the NHS will grow by much less: 5.2 per cent. This is equivalent to around £7 billion in real terms – increasing from £135 billion in 2014/15 to £142 billion in 2020/21. As a proportion of GDP it will fall to 6.6 per cent compared to 7.3 per cent in 2014/15. But, if spending kept pace with growth in the economy, by 2020/21 the UK NHS would be spending around £158 billion at today's prices – £16 billion more than planned.
Failing to increase the NHS budget in line with an increase in GDP is not reducing NHS funding. But that may be too simplistic a comment for some to understand that it reflects reality.