The demographic maths are brutal
Britain's dependency ratio — the number of pensioners per working-age adult — is heading in one direction. In 1950, there were roughly 5.5 workers for every pensioner. By 2020, that had fallen to about 3.3. ONS projections put it below 2.5 by the mid-2040s.
The state pension costs roughly £124 billion a year, making it the single largest item of government expenditure. The triple lock — guaranteeing rises by the highest of inflation, average earnings, or 2.5% — means this cost accelerates faster than the economy grows. In 2024/25, the triple lock delivered a 8.5% increase. The full new state pension rose to £230.25 per week.
Every year we delay adjusting the pension age, the gap between contributions and payouts widens. This isn't ideology. It's arithmetic.
Consider what this means for the Treasury. State pension spending has roughly doubled in real terms since 2000, from about £60 billion to £124 billion. The OBR projects further growth as the baby boomer generation enters retirement in full force over the next decade.
For those planning their own retirement income, our pensions hub explains how workplace and personal pensions interact with the state pension.