The Department for Work and Pensions (DWP) is facing renewed pressure to abolish a key element of the state pension triple lock, with critics branding the mechanism increasingly expensive and unfair.
The Triple Lock Under Fire
At the heart of the debate is the triple lock guarantee, which ensures state pension payments increase each year by the highest of three measures: average earnings growth, inflation (Consumer Prices Index), or 2.5 per cent. This policy has been a cornerstone of pensioner income protection for over a decade.
However, financial experts are now advocating for its replacement with a simpler "double lock". This alternative would remove the guaranteed minimum 2.5 per cent annual uplift, tying increases solely to either earnings or inflation, whichever is higher.
Expert Analysis Reveals Long-Term Cost
Ed Monk, an associate director at Fidelity International, has highlighted the growing fiscal burden of the triple lock. "It's getting increasingly expensive to fund, hence the kicking it tends to get from its critics," he stated.
Mr Monk conducted an analysis to illustrate the cumulative effect of the 2.5 per cent guarantee. He calculated the growth of a notional £100 of state pension income from 2011/12 to the present day (2025/26).
The findings were significant:
- With the full triple lock active, the £100 grew to £180.70.
- Under a proposed double lock (using only the higher of wages or CPI), the value would be £174.24.
"The difference will clearly grow if more years arrive when the 2.5 per cent measure is used," Mr Monk added. While next year's rise of 4.8 per cent is based on wages, he warned that with inflation and wage growth potentially falling, the 2.5 per cent promise could soon become valuable again.
The Argument for Change
Proponents of reform argue that the core aims of the policy—preventing pensions from losing value in real terms or letting pensioner incomes fall behind workers—are met by tracking inflation and wages alone.
"The 2.5 per cent element is not necessary to achieve these aims," Mr Monk explained. Critics contend that this extra guarantee places an unsustainable and growing cost on the public purse, especially as the population ages.
The debate puts the DWP in a difficult position, balancing the financial security of millions of pensioners against the long-term affordability of the welfare system. With economic uncertainty ahead, the future of one of the UK's most prominent welfare policies hangs in the balance.