The Treasury’s latest figures show public sector net borrowing reached £16.6 billion in April, the highest for that month since the pandemic peak of 2020. This is nearly double the £8.9 billion recorded in April 2023 and significantly above the Office for Budget Responsibility’s forecast of £12.8 billion. The deficit is driven by surging welfare costs, higher debt interest payments, and a sluggish economy that has failed to generate the tax receipts the Chancellor was banking on.
For those of us who have watched the fiscal arithmetic for decades, this is a worrying signal. The gilt market is now pricing in a higher risk premium on UK debt. The yield on 10-year gilts has already crept up 15 basis points since the announcement, reflecting investors’ growing unease about the sustainability of the public finances. When the cost of servicing debt rises, it eats into the fiscal headroom for tax cuts or even essential spending.
The Chancellor will argue that borrowing is necessary to stimulate growth and repair public services. But the numbers tell a different story. Net debt is now approaching 100% of GDP, a level that was unthinkable before the financial crisis. The government is effectively borrowing to pay for day-to-day spending, not capital investment. That is the definition of a structural deficit.
What worries me more is the lack of a credible plan to close the gap. The next Budget in the autumn will be a tightrope walk. Raise taxes and you risk choking off the fragile recovery. Cut spending and you jeopardise public services that are already creaking. The bond market will not be patient. If the government fails to show fiscal discipline, we could see a rerun of the 2022 gilt crisis, albeit perhaps not as dramatic.
Meanwhile, the Bank of England faces a dilemma. Inflation is still above target, but the economy is stagnating. The high borrowing figures will put pressure on the Bank to keep interest rates higher for longer, which in turn increases the cost of government debt. It is a vicious circle.
For investors, the message is clear. UK sovereign risk is no longer a safe haven. The premium you demand to hold gilts needs to reflect the deteriorating fiscal outlook. Capital flight is a real possibility if confidence evaporates.
The bottom line: April’s borrowing numbers are not a one-off blip. They are a symptom of a deeper fiscal malaise. Without a credible consolidation strategy, the UK risks sliding into a debt trap that will take years to escape.
