Chancellor Rachel Reeves is facing mounting pressure as global markets reel from the latest volley in Donald Trump’s intensifying trade war, sending the cost of UK government borrowing to its highest level in a generation and dealing a heavy blow to her carefully balanced budget plans.
On Wednesday, yields on 30-year UK government bonds – or gilts – surged to 5.617%, marking the highest point since May 1998. The spike came in the wake of similar moves in US Treasury markets, triggered by Trump’s imposition of punitive 104% tariffs on certain Chinese imports. In a swift response, Beijing retaliated with a dramatic 84% levy on US goods, escalating tensions and fuelling fears of a prolonged global trade crisis.
Despite warnings from economists and businesses worldwide, the former – and potentially future – US President remained characteristically defiant, declaring that nations were “queuing up to kiss my ass”, in remarks that sparked widespread criticism.
The market reaction in Britain has been particularly severe. The 27-basis point leap in gilt yields represents the sharpest one-day move since the aftermath of Liz Truss’s ill-fated “mini-budget” in October 2022. That incident sent markets into a spiral and ultimately forced Truss out of office. Wednesday’s surge follows an 18.9-basis point rise just two days prior, amplifying concerns that the UK’s economic resilience may again be tested.
Yields on 10-year gilts also rose sharply, climbing more than 14 basis points to reach 4.753%. Meanwhile, shorter-term two-year bonds eased slightly, reflecting investor expectations that the Bank of England may be forced to slash interest rates in the coming months to protect growth.
Ms Reeves, who only weeks ago unveiled a Spring Statement focused on cautious spending and restoring fiscal discipline, had set aside just £10 billion of “fiscal headroom” to cushion the economy against global shocks. However, with borrowing costs surging, analysts now warn that the Chancellor’s margin for error is narrowing alarmingly.
“The risk now is that the Chancellor will have to consider tax rises in the autumn Budget if yields remain elevated,” said Julian Jessop, an independent economist. “She’s already walking a tightrope, and the winds just picked up.”
Despite the turbulence, Reeves has so far resisted calls to abandon her self-imposed fiscal rules, which commit the government to achieving a balanced current budget by the end of the decade. On Tuesday and again on Wednesday, she insisted these rules remained “ironclad” and would not be revised in response to Trump’s tariffs.
“We must maintain stability and credibility,” Reeves said in a brief statement. “Now more than ever, the UK must demonstrate it is a reliable and disciplined economic actor.”
Yet the political and financial calculus is shifting rapidly. Investors are increasingly betting that the Bank of England will have to act, with rate futures now pricing in nearly 100 basis points of cuts to the Bank Rate by the end of 2025, up from 78 points just a day earlier.
While the UK has refrained from immediate retaliation to Trump’s 10% tariff on British exports, officials remain engaged in efforts to strike a broader trade agreement with Washington that could see some of the tariffs eased. For now, however, Reeves is left navigating an unpredictable economic storm with limited tools at her disposal.
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“Higher yields are going to make it difficult politically to decide what to do next,” said Michael Metcalfe, head of macro strategy at State Street Global Markets in London. “If yields go up and stay up, this causes problems for the UK fiscal position and could put pressure on sterling as well.”
Despite the mounting pressure, investor appetite for British debt remains strong. A £4.5 billion auction of five-year gilts on Wednesday was nearly three times oversubscribed – a sign, analysts say, that the UK’s underlying economic stability remains intact for now.
Even so, business leaders across Britain, the United States and beyond continue to voice alarm over Trump’s tariffs. Industry groups warn the new levies will damage trade, drive up costs, and jeopardise jobs – all as the global economy attempts to recover from years of inflationary strain and geopolitical instability.
As the dust settles from yet another market shock, one thing is clear: Rachel Reeves’s ability to deliver stability in turbulent times is being tested in real time.
