The Office for Budget Responsibility (OBR) has forecast that the State Pension Triple Lock will add £15.5 billion annually to government spending by 2029-30, up from an original projection of £5.2 billion. The UK's independent fiscal watchdog stated that the policy, combined with an ageing population, will be a major driver of higher public expenditure over the coming decades.
Triple Lock Mechanism and Cost Drivers
The Triple Lock guarantees that the State Pension rises every April by the highest of inflation, average earnings growth, or 2.5 per cent. According to the OBR's latest Fiscal Risks and Sustainability Report, State Pension spending is projected to increase from around 5 per cent of gross domestic product (GDP) to about 9 per cent of GDP by 2075-76 under its central forecast. Approximately one-third of that increase is attributed to the Triple Lock, with the remainder largely due to demographic changes as the UK population continues to age.
The OBR noted that the policy has proven more expensive than originally expected when introduced in 2012, due to periods of high inflation and strong earnings growth. The revised estimate of £15.5 billion a year by 2029-30 contrasts sharply with the initial forecast of £5.2 billion annually.
Impact on Public Debt and Intergenerational Equity
Tom Josephs, a member of the OBR's Budget Responsibility Committee, said: "It is certainly a substantial pressure on public spending over the longer term and is making a very significant contribution to that upward pressure on spending." The OBR warned that without action to address long-term spending pressures, UK public debt could rise significantly over the next 50 years.
David Brooks, head of policy at financial services consultancy Broadstone, highlighted a "growing intergenerational challenge." He added: "The Triple Lock has been successful in protecting pensioner incomes, but the cost of maintaining that commitment falls on today's workers through higher taxation and borrowing."
Alternative Scenarios and Current Pension Rates
The OBR also examined a scenario where the State Pension increases in line with average earnings instead of the Triple Lock. Under that scenario, State Pension spending would reach around 7 per cent of GDP by 2075-76, rather than the projected 9 per cent. The Labour Government has committed to maintaining the Triple Lock during the current Parliament.
The New and Basic State Pension increased by 4.8 per cent in April. Someone on the full New State Pension now receives £241.30 a week, or £965.20 every four-week pay period. Those on the full Basic State Pension receive £184.90 each week, or £739.60 every four-week pay period.
