Soaring debt and borrowing costs are approaching levels that once forced London to seek an IMF rescue, according to a Telegraph report

Britain is facing the prospect of a repeat of its crippling 1976 economic crash as soaring debt and borrowing costs raise doubts over Labour's budget policies, leading economists have warned, according to a Telegraph report.

The crisis nearly fifty years ago saw a Labour government forced to seek an emergency loan from the International Monetary Fund (IMF) after deficits and inflation spun out of control. It became one of Britain's worst postwar crises, with the bailout bringing deep spending cuts and Labour losing power a few years later.

Now Chancellor Rachel Reeves faces similar warnings, with forecasts showing a Pound 50 billion ($68 billion) gap in the public finances and debt interest set to exceed Pound 111 billion. Debt now exceeds 96% of GDP. At around Pound 2.7 trillion, it is one of the heaviest burdens in the developed world. Government borrowing costs have surged, with yields on 30-year bonds climbing above 5.5%, higher than those of the US and Greece.

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Jagjit Chadha, former head of the National Institute for Economic and Social Research, told the Telegraph the outlook was "as perilous as the period leading up to the IMF loan of 1976," warning Britain could struggle to meet pensions and welfare payments.

Andrew Sentance, once a Bank of England policymaker, said Reeves was "on course to deliver a [former UK Chancellor Denis] Healey 1976-style crisis in late 2025 or 26," accusing Labour of fueling inflation with higher taxes, borrowing, and spending.

The warnings come weeks before Reeves is due to present her first autumn budget, where she is expected to announce further tax rises to cover the shortfall - a move critics argue would deepen the downturn. The Labour government also faces deepening political and economic challenges, including declining support.

On Saturday, Reform UK leader Nigel Farage declared it was "the 1970s all over again," while Conservative leader Kemi Badenoch described soaring borrowing costs as the price of Labour's "economic mismanagement."

London has pledged to raise military spending to 2.5% of GDP by 2027, aligning with NATO commitments. Britain remains one of Ukraine's most ardent supporters, delivering billions in military and financial aid - further squeezing already stretched public finances.