John Healey cannot afford to make the one mistake Rachel Reeves avoided (Image: Getty)
Chancellor John Healey is approaching one of the most consequential moments of his political career, with mounting pressure to demonstrate that the Government can control public spending without damaging an already fragile economic outlook.
Prime Minister Andy Burnham has promised to make Britain fairer, improve public services and ease the cost-of-living burden. But those ambitions are colliding with a difficult financial reality: borrowing costs are rising, international tensions are driving up energy prices, and the Treasury has less room to manoeuvre than ministers would like.
The warning from former Bank of England chief economist Andy Haldane is particularly uncomfortable for Labour. Haldane has argued that Healey cannot solve the problem simply by raising taxes again, warning that excessive taxation could undermine economic growth. Instead, he believes the Government must confront the growth of public spending and make difficult decisions about which commitments it can realistically afford.
That puts Healey in an unenviable position. If he raises taxes, he risks frustrating businesses and households already struggling with rising costs. If he borrows more, he risks unsettling investors. And if he cuts spending, he could provoke a backlash from Labour MPs and campaigners who expect Burnham’s Government to deliver a more ambitious programme.
With the Budget scheduled for October 28, the Chancellor has little time to convince markets, voters and his own party that he has a credible plan.
Bond markets deliver a stark warning
The scale of the challenge became clear on October 7, when the yield on 30-year UK government bonds, known as gilts, rose to approximately 6.04%, its highest level in 28 years.
The movement was part of a broader sell-off in government bonds internationally. Investors were responding to inflation concerns, rising energy prices and uncertainty over how governments would finance their spending commitments.
However, the increase in British borrowing costs is particularly significant because the UK already carries a substantial debt burden.
According to Reuters reporting on October 7, the rise in long-term gilt yields has increased pressure on Healey just weeks before his first Budget. The yield on 10-year gilts also climbed towards levels last seen in 2007.
A gilt yield is not the same thing as the interest rate on every government loan. Nevertheless, higher yields can increase the cost of issuing new debt and refinancing maturing borrowing. They can also influence mortgage rates, business financing and other borrowing costs across the economy.
The danger is that the Government could find itself paying more simply to service its existing financial commitments, leaving less money available for public services and investment.
That is why warnings from financial markets matter. Investors do not necessarily demand spending cuts for ideological reasons; they want confidence that a government can meet its obligations without allowing debt to spiral uncontrollably.
If confidence weakens, the price the Government must pay to borrow may rise further.
Andrew Bailey invokes the lessons of Liz Truss
Bank of England Governor Andrew Bailey has added to the pressure by emphasising that government tax and spending plans must be credible to financial markets.
His warning has inevitably revived memories of the September 2022 mini-Budget under former Prime Minister Liz Truss and Chancellor Kwasi Kwarteng.
That episode unsettled financial markets after the Government announced major tax reductions without a sufficiently convincing explanation of how they would be financed. Gilt yields surged, sterling came under pressure and the Bank of England intervened to stabilise the market for long-dated government bonds.
The circumstances facing Healey are different. The current rise in yields has occurred amid an international bond-market sell-off and renewed inflation concerns, rather than being caused solely by a single British fiscal announcement.
Even so, the underlying lesson remains relevant: governments must explain how their policies fit together financially.
Bailey’s message is not that every tax cut or spending increase is irresponsible. Rather, markets need confidence that ministers understand the consequences of their decisions and have a credible route for keeping public finances under control.
The Office for Budget Responsibility’s July 2026 report also highlights the risks associated with rising debt and interest payments. Its analysis shows that debt interest has become one of the largest areas of public expenditure, reducing the resources available for other priorities.
Healey therefore cannot treat market confidence as a secondary concern. If borrowing becomes more expensive, the Government’s ability to deliver its programme could be weakened before many of its reforms have had time to produce results.
Why another tax raid could backfire
One option available to the Chancellor is to increase taxes to rebuild the fiscal buffer and fund public commitments.
But that approach carries risks, particularly when the economy is already under pressure from high energy prices and expensive borrowing.
Businesses facing higher taxes may postpone investment, reduce recruitment or pass additional costs on to customers. Households may have less disposable income to spend in shops, restaurants and local businesses.
The effect depends on which taxes are increased, how large the changes are and how businesses and consumers respond. Not every tax increase has the same economic consequences. Some measures may raise revenue with relatively limited effects on activity, while others could discourage investment or reduce incentives to work.
Haldane’s concern is that a further round of tax increases could damage the growth the Government needs to generate additional revenue in the first place.
Former Goldman Sachs economist Lord Jim O’Neill has also warned against a Budget that relies too heavily on higher taxation. Their argument reflects a broader economic dilemma: the Treasury needs revenue, but weakening economic activity could undermine the tax base over time.
There is also a political problem. Labour campaigned on improving living standards and making public services work better. If the Budget results in higher bills, reduced investment or weaker employment prospects, voters may conclude that the Government is making their financial position worse rather than better.
Yet Healey cannot simply rule out tax increases. If he rejects additional revenue without identifying credible savings or a realistic path to stronger growth, investors may question whether his plans add up.
The challenge is to demonstrate that any tax decisions form part of a coherent economic strategy rather than a short-term attempt to fill a hole in the accounts.
The spending problem Burnham cannot ignore
The more difficult question concerns public spending.
Burnham has supported a range of policies intended to ease pressure on households and improve public services. These include assistance with energy costs, transport measures, expanded housebuilding and plans to reform social care.
Many of those objectives have a strong public-interest argument behind them. Better social care could reduce pressure on hospitals, while investment in housing may help address shortages and improve affordability. Targeted help with energy costs can provide immediate support to vulnerable households.
But worthwhile policies still have to be financed.
Haldane’s argument is that the Government must be prepared to reconsider spending commitments rather than assuming every programme can be funded through additional taxation or borrowing.
That is a politically uncomfortable message for a Labour administration. Ministers may face demands from backbench MPs, unions and local authorities to protect existing services and provide additional money for public-sector workers.
Departments are also dealing with competing pressures. Health services need resources, councils face rising demand, and defence planners are calling for additional investment as international security deteriorates.
Cutting spending is not necessarily the answer to every problem. Poorly designed reductions can weaken services, damage economic activity and create larger costs elsewhere. Investment in infrastructure, skills and public health can also support long-term growth.
But the Government must distinguish between spending that produces lasting benefits and commitments that cannot be sustained under current financial conditions.
The danger for Burnham is that political promises made across government may prove incompatible with the money available. If Healey is forced to retreat from those commitments, the Prime Minister could face criticism from supporters who expected more decisive action.
A global crisis is making the calculations harder
The economic outlook has become more difficult because of the renewed conflict in the Middle East and its effects on energy markets.
Oil prices climbed above $100 a barrel in early October amid fears of disruption to supplies and shipping routes. Higher oil and gas prices can push up transport, manufacturing and household energy costs.
The consequences are not limited to fuel bills. If businesses face higher costs, they may increase prices, while workers may demand higher wages to compensate for lost purchasing power. Central banks could then find it harder to reduce interest rates.
That creates a particularly damaging combination for the Treasury: higher inflation can increase pressure for public support, while higher interest rates make government borrowing more expensive.
The Office for Budget Responsibility has warned that the public finances are vulnerable to economic shocks and that high debt can reduce a government’s ability to respond to future emergencies.
Britain is not in the same position as France or any other individual country facing its own fiscal difficulties. Comparisons between countries must account for differences in debt structures, political systems, growth prospects and investor behaviour.
Nevertheless, the wider international situation demonstrates why Healey cannot assume that favourable economic conditions will arrive in time to rescue his plans.
A credible Budget must be able to withstand a difficult scenario, not merely work if inflation falls quickly and borrowing costs decline.
What Healey must deliver on October 28
The Chancellor’s immediate task is to convince investors that the Government has a realistic approach to taxation, spending and borrowing.
That means setting out clear fiscal objectives, explaining how new commitments will be paid for and avoiding measures that create large, unfunded liabilities.
Healey will also need to demonstrate that his plans are consistent with the Government’s economic forecasts and the independent scrutiny provided by the Office for Budget Responsibility.
A credible Budget does not necessarily require dramatic cuts or sweeping tax increases. It requires decisions that can be explained, financed and sustained.
The Chancellor could seek savings through more efficient public services, tighter controls on poorly performing programmes and a review of subsidies that do not deliver sufficient value. He could also pursue reforms designed to improve productivity, encourage private investment and help more people into work.
However, efficiency savings cannot be treated as an unlimited source of money. They must be supported by realistic assessments of what departments can deliver without damaging essential services.
Likewise, growth-enhancing reforms may take years to generate substantial additional tax revenue. They cannot automatically fill an immediate fiscal gap.
Healey must therefore be honest about the trade-offs facing the Government. If ministers want to protect household incomes, improve public services and strengthen defence, they must explain the order of priorities and the resources required.
The political consequences for Andy Burnham
Although Healey will deliver the Budget, the political consequences will reach directly into Downing Street.
Burnham has made economic improvement a central test of his leadership. If households see little progress on living standards while public services remain under strain, the Government could struggle to persuade voters that its policies are working.
A Budget that relies heavily on tax increases could alienate businesses and workers. One that borrows more without a convincing plan could unsettle markets. And one built around spending restraint could disappoint Labour supporters who expect visible improvements to public services.
There is no risk-free option.
The Prime Minister must also manage expectations within his own party. MPs who campaigned for additional public investment may resist attempts to restrict departmental budgets, while ministers responsible for health, housing and local government will argue that their services cannot absorb further pressure.
The result could be a clash between political ambition and fiscal reality, with Healey placed in the middle.
If the Chancellor establishes clear priorities and explains why difficult choices are necessary, he may strengthen confidence in the Government’s economic management. If the Budget appears improvised or relies on optimistic assumptions, critics will argue that ministers have failed to learn from previous mistakes.
A Budget that cannot afford to fail
The warnings facing Healey should not be interpreted as proof that a financial crisis is inevitable. Gilt yields can move for many reasons, and a rise in borrowing costs does not automatically mean investors have lost confidence in the Government.
But the pressure is real. Higher interest payments, inflation risks and limited fiscal flexibility mean that mistakes could prove expensive.
Haldane’s demand for spending restraint, Bailey’s emphasis on market credibility and the OBR’s assessment of long-term fiscal risks all point towards the same fundamental challenge: Britain needs a financial plan that matches its ambitions to its resources.
For Burnham, the stakes are especially high. His Government wants to demonstrate that Labour can improve living standards and rebuild public services. But those objectives will be harder to achieve if the cost of borrowing continues to rise or the Treasury is forced into emergency measures.
Healey must now show that he can protect the public finances without sacrificing economic growth or abandoning the Government’s central promises.
The October 28 Budget will not solve every problem confronting Britain. It can, however, establish whether ministers have a credible strategy for navigating them.
If the Chancellor gets the balance wrong, the consequences may extend beyond the Treasury’s accounts, threatening the Prime Minister’s economic programme and weakening confidence in the Government’s ability to deliver.
The real test is not whether Healey can announce another package of policies. It is whether he can demonstrate that Britain can afford them.