UK's shrinking workforce and aging population threaten pension sustainability by 2093

The UK is facing a growing demographic challenge as birth rates fall and life expectancy rises. In 2024, the fertility rate hit a record low of 1.41, well below the replacement level needed to keep the population stable. Meanwhile, people are living longer, putting pressure on pensions and the workforce supporting retirees.

Fifty years ago, there were four working-age people for every pensioner. By 2093, projections suggest this could drop to just two. The state pension age, now 66, is set to rise to 67 by 2028, with further increases planned for 2044–2046. Those born after April 1977 may have to wait even longer to claim their pension.

Life expectancy has climbed steadily over the past half-century. In 1976, the average was around 72 years; today, it stands at roughly 81. Men now live to 78 on average, while women reach 84. This shift has fuelled debates about raising the pension age to 68 or beyond, ensuring the system remains sustainable as retirees live longer.

The triple lock policy guarantees that state pensions rise each year by the highest of inflation, wage growth, or 2.5 per cent. However, with fewer workers supporting more pensioners, experts warn of future strain. The minimum age for accessing private pensions will also increase from 55 to 57 in 2028, aligning with state pension changes.

Childlessness among women has surged from 5 per cent in 1970 to around 30 per cent today. The Centre for Social Justice has proposed measures to boost birth rates, including policies that support marriage, value motherhood, and address generational imbalances. Without intervention, younger generations may face working into their 70s to maintain the current balance of three and a half workers per pensioner.

The government must review the state pension age every six years, with the next assessment due in 2030. If trends continue, the pension age could reach 75 by 2093 to keep the system afloat.

The combination of lower birth rates and longer lifespans is reshaping the UK's pension landscape. Future workers may need to retire later, while policymakers must consider reforms to ensure financial stability. The next pension age review in 2030 will be critical in determining how the country adapts to these changes.