The standard annual limit for contributing to a pension with tax relief is £60,000, or 100% of earnings, whichever is lower. However, a separate provision allows individuals with no earnings to contribute up to a gross figure of £3,600 annually. This £3,600 limit, consisting of a £2,880 personal contribution and £720 in basic rate tax relief from HMRC, has remained static for over two decades, potentially hindering retirement savings for a significant group.

This stagnant limit originated around April 2001 with the introduction of stakeholder pensions, according to analysis from Steve Webb, a former Pensions Minister. A 1999 consultation document suggested the £3,600 limit for stakeholder pensions was set high, as fewer than 5% of personal pension contributions at the time exceeded this amount. Despite a note in that document indicating the limit would be "periodically reviewed," it has consistently remained unchanged.

If the £3,600 limit had been adjusted annually in line with the Consumer Price Index (CPI) inflation, it would be closer to £6,500 today. Unlike some elements of the tax and benefit system that are automatically indexed to inflation, figures without such a rule are prone to becoming frozen. A more extreme example cited is the Christmas Bonus, introduced in the early 1970s and still at its original rate.

An increase in this £3,600 limit could benefit several groups. Early retirees, such as the individual who raised the issue, may have other savings or unearned income and wish to contribute more to their pension. This is particularly relevant as individuals who leave the workforce before traditional retirement age may be at a greater risk of inadequate pension savings.

Younger generations could also benefit, as parents, grandparents, or other relatives can contribute to a child's pension, capped by the same £3,600 limit. Regular contributions on behalf of a child can provide a significant head start in building retirement savings. Additionally, individuals experiencing periods of low or no earnings, such as a stay-at-home parent, could have a partner contribute on their behalf. Such a change could potentially help to reduce the gender pension gap, as women are more often affected by reduced pension saving during child-rearing years.

Discussions around a potential increase to the £3,600 limit do not point to a single definitive figure. One proposal suggests restoring the limit to its original real value and then maintaining it through annual indexation. Alternatively, the limit could be aligned with other figures in the pension tax relief system, such as the minimum £10,000 annual allowance for high earners or the £10,000 money purchase annual allowance for those drawing taxable cash from a defined contribution pension. A £10,000 limit for those without earnings could offer symmetry, though it risks also being frozen without automatic indexation.