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Starmer to face Badenoch at PMQs after Reeves hits out at Budget leaks – live updates


Analysis

Reeves stands by decision to raise taxes in part to increase fiscal headroompublished at 11:43 GMT

Michael Race
Business and economics reporter

The chancellor has defended her decision to increase taxes, in part to raise the so-called headroom she has against her borrowing rules.

The buffer, which is essentially the rainy day fund for chancellors to fall back on, has been smaller in recent years and was forecast by the Office for Budget Responsibility (OBR) to be £4.2bn in its pre-Budget forecast.

Prior to November 2022, chancellors have tended to create a £20bn to £30bn buffer so that in event of economic shocks, or unexpected spending rises, the public finances remain balanced.

Last week, a senior figure at the OBR said while the £4.2bn was in positive territory, it still “posed a significant” challenge to the chancellor and was a “tiny margin”.

The buffer was also less than the £9.9bn Reeves had previously left.

The OBR also said the £4.2bn buffer would have been reduced to minus £3bn because the OBR’s forecast did not take into account the welfare and winter fuel payment U-turns made by the government.

Critics of Rachel Reeves have argued she misled the public by not mentioning in her press conference ahead of the Budget that she was on track to meet her borrowing rules by the £4.2bn figure.

But the chancellor has argued one of the goals of her Budget was to increase this figure – i.e. the buffer.

A bar chart showing fiscal headroom at each budget or fiscal event since 2010. Headroom was £9.9 billion in March 2025, unchanged from Rachel Reeves' Autumn budget and still low by previous standards. Headroom peaked at around £80 billion in 2014. Fiscal headroom is the amount by which spending could rise or taxes could fall without breaking the government's fiscal rules. Figures refer to the government rule being met most narrowly at each fiscal event



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