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Economics

UK national debt passes £3 trillion as interest costs surpass defence budget

Britain's national debt has breached the £3 trillion mark, leaving each household with an estimated £103,000 share of the burden.

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The UK's national debt has risen above £3 trillion for the first time, according to analysis by the Taxpayers' Alliance that draws on the latest borrowing data from the Office for National Statistics and the Office for Budget Responsibility. The official figure stood at £2.99 trillion last month, with updated numbers due on 21 August.

The milestone reflects an acceleration in borrowing that has added £1 trillion in just six years, compared with the 11 years it took to accumulate the first trillion before 2020. Debt now sits at roughly 95 per cent of GDP, up from below 30 per cent in 2004.

Where the money went

The government has disclosed £380 billion in Covid-related spending, with further sums still outstanding. The energy price guarantee introduced after Russia's full-scale invasion of Ukraine added tens of billions more. Meanwhile, the Bank of England's rate-hiking cycle pushed up the cost of servicing the debt, which is now projected to exceed £110 billion this year, nearly double the annual budget of the Ministry of Defence.

John O'Connell, chief executive of the Taxpayers' Alliance, said households would be "horrified" to learn their share amounts to about £103,000 each. He argued that politicians have allowed debt to "run out of control" and warned that hidden liabilities such as public sector pensions make the true picture even larger.

Fiscal rules under strain

The previous government eased borrowing rules to allow higher real-terms spending, a move supported by Labour figures including Andy Burnham as part of a pushback against austerity. That decision has added further to the debt stock. With interest costs consuming a growing slice of revenue, the Chancellor faces narrowing options: raise taxes, cut spending, or rewrite the fiscal framework again.

The ONS will publish its next official reading on 21 August, which will confirm whether the £3 trillion threshold has been crossed on the headline measure. Either way, the trajectory is clear: debt service costs are now a permanent feature of the fiscal landscape, limiting room for manoeuvre in any future downturn.

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