Britain’s national debt has surged faster than almost any other country in the world, raising fresh concerns about the state of the public finances as Labour faces mounting pressure over spending and economic management.
Analysis of International Monetary Fund data, first reported by The Telegraph, shows that the UK’s debt burden has grown more rapidly than every country surveyed except Botswana, a highly unusual outlier whose finances were transformed by the boom and subsequent decline of its diamond industry.
According to the IMF figures, Britain’s net government debt stood at 30.4 per cent of GDP in 2001. It has now climbed to 95.5 per cent, an increase of more than 65 percentage points.
The figures come as Chancellor Rachel Reeves struggles to balance growing demands for public spending with increasingly fragile economic conditions and rising borrowing costs.
Critics warn that Britain is heading towards a debt burden exceeding £3 trillion, leaving taxpayers exposed to ever-growing interest payments and reducing the Government’s ability to respond to future economic shocks.
The findings are particularly uncomfortable for Labour, which entered office promising economic competence and stability. The Government inherited an economy that had returned to growth and was recorded as the fastest-growing in the G7 during the first half of 2024. Yet less than two years later, ministers are facing growing scrutiny over sluggish growth, rising taxes and worsening business confidence.
Sir Mel Stride, the Shadow Chancellor, told The Telegraph that it is ordinary families who ultimately pay the price for excessive debt and spiralling interest costs.
He argued that Britain had already accumulated far too much debt and warned that Rachel Reeves was presiding over a situation in which borrowing is projected to continue increasing throughout this Parliament.
Economists have also expressed concern about the long-term sustainability of Britain’s finances.
Paul Johnson, former director of the Institute for Fiscal Studies, warned that politicians have repeatedly avoided confronting voters with the difficult choices required to bring debt under control. Speaking to The Telegraph, he suggested governments have often promised spending increases without being honest about the tax rises or savings required to pay for them.
The growing debt burden is also becoming a concern for financial markets.
As government borrowing rises, investors demand higher returns to lend money to the Treasury through government bonds, increasing the cost of servicing the national debt.
Those concerns have been amplified by political uncertainty within Labour itself. Sir Keir Starmer continues to face questions over his leadership, while figures on the Left of the party are calling for even greater spending commitments.
Greater Manchester Mayor Andy Burnham, widely seen as a potential future Labour leader, previously unsettled markets when he suggested Britain should move beyond being constrained by bond markets, although he later reaffirmed his support for Rachel Reeves’s fiscal rules.
Colin Ellis of Moody’s Analytics told The Telegraph that Britain’s already substantial debt burden is making financial markets increasingly sensitive to political developments and concerns over fiscal discipline.
Britain’s debt problems have accumulated over many years and have been worsened by major events including the global financial crisis, the Covid pandemic and the energy crisis.
However, economists note that despite years of political arguments over austerity, Britain has not reduced its deficit as aggressively as some comparable nations.
The result is a troubling picture. Public debt remains close to historic highs, public services continue to face significant pressures, taxes are already near record levels, and ministers are under growing pressure to spend more on defence, welfare and infrastructure.
With national debt approaching £3 trillion and economic growth remaining weak, Labour’s promise of stability is facing an increasingly difficult test. The danger for ministers is that financial markets, businesses and voters may begin to question whether the Government has a credible plan to bring Britain’s borrowing under control before the burden becomes even heavier for future generations.
