Fiscal headroom halves to £15bn as Healey delivers Burnham government's first budget
Chancellor Healey confirmed fiscal headroom has fallen from £23.6bn to £15bn, with debt peaking at 83.8% of GDP, as he delivered Burnham government's first budget.
By Nathan Brooks
4 min read

What's News
- Fiscal headroom fell to £15bn for 2029-30, down from £23.6bn in March
- Debt as a share of GDP will peak at 83.8% and not fall below March levels until 2030
- Working carers face a £1-for-£1 clawback — a 100% effective tax rate — from 2029
- Healey met both fiscal rules in the third forecast year for the first time
- Burnham said North Sea reserves can 'accelerate' the move to clean energy, citing the Jackdaw decision
Chancellor Healey confirmed Britain's fiscal headroom has collapsed to £15bn for 2029-30 — down from £23.6bn as recently as March — as he delivered the first budget of Burnham's government.
The number landed roughly where the City expected, though not where it hoped. Healey told MPs the debt-to-GDP ratio will hit 83.2% this year, then rise to 83.8% next year and hold there through 2028 and 2029-30, before easing to 83.1% in 2030, 82.3% in 2031 and 81.7% in 2032.
Morgan Stanley had flagged the risk earlier this week, and its read was blunt:
No investor we spoke to contemplated a risk of the fiscal headroom coming in at below £15 billion, and most we spoke to said that even £15 billion (our base case) would be a disappointment, with consensus in recent days shifting towards between £15 billion and £20 billion.
In plain terms: the government's buffer against shocks has shrunk by more than a third in six months. That's roughly the entire annual budget of a mid-sized Whitehall department, gone from the margin.
Did Healey keep the fiscal rules?
Yes, by his own account — and this year the test got harder. For the first time, the rules must be met in the third year of the forecast, not just at the forecast horizon. Healey told the Commons:
Today, I meet the fiscal rules – the stability rule, that day to day spending must be covered by tax receipts, and the investment rule, that government debt, defined as public sector net financial liabilities, must be falling as a percentage of GDP.
So the rules survive on paper. What does this change for anyone planning around UK fiscal policy? A £15bn cushion means any downgrade to growth or borrowing estimates between now and 2029-30 could force fresh tax or spending decisions. Headroom this thin leaves little room for error.
Rosebank and the North Sea
The budget numbers became entangled with the Rosebank oilfield question at PMQs, which preceded the statement. Danny Kruger of Reform UK pressed Burnham on whether the budget assumes Rosebank will be allowed to proceed.
Burnham declined to be drawn, calling Rosebank "a quasi-judicial decision" for the energy secretary. But he went further than many expected on North Sea production generally, telling Kruger:
[Kruger is] right in pointing to the fact that use of our reserves can support and accelerate a clean energy future. And that very much was the logic behind the decision that the government announced on Jackdaw last week.
For energy investors, that's a signal: the government sees continued hydrocarbon extraction as compatible with — even instrumental to — its clean power targets, following last week's Jackdaw decision.
Carers face a 100% clawback rate
The sharpest attack of the session came over carer benefits. From 2029, the government will claw back £1 for every £1 a carer earns — a 100% effective tax rate on working carers. One critic put it plainly:
It won't take effect for four years and, when it does, the government will claw back £1 for every £1 a carer earns – a 100% tax rate for working carers. That can't be right.
Burnham responded that he wants to build a cross-party consensus on care — a hint that the policy may be revisited before the four-year implementation window closes.
Westminster's other flashpoints
Several other exchanges marked the day:
- Badenoch demanded Burnham rule out any referendum on the EU or single market. Burnham said he is "doing what I can do to get a better deal for Britain", noting the CBI and other business organisations back his push for an improved Brexit deal.
- Ed Davey asked whether Burnham would back UK membership of the EU single market and customs union. Burnham called it "extraordinary" that the Tories oppose improving the Brexit deal.
- Johanna Baxter (Lab) pressed Burnham over Steve Witkoff, Donald Trump's envoy, calling Putin a humanitarian, noting Putin is wanted by the International Criminal Court "for the systematic abduction of 20,651 Ukrainian children". Burnham said she was "absolutely right" about Putin but pointedly did not criticise Witkoff.
- Dave Robertson (Lab) raised Royal Mail's inability to compete with rivals that don't give workers equivalent rights.
On homelessness, Burnham said he is "increasingly confident" of meeting his target to offer every rough sleeper a bed for the night before the end of the year.
By tradition, deputy speaker Nusrat Ghani took the chair for the budget statement, replacing Lindsay Hoyle after PMQs concluded.
The arithmetic of this budget — debt peaking at 83.8% of GDP and just £15bn of headroom stretching to 2030 — means the next fiscal event will start from a weaker position than any since Burnham took office.
Source: The Guardian Business
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News editor covering regulation, policy and their impact on entrepreneurship, startups and venture funding at Business Bearings.
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