Labour shelled out a record £10.9bn in debt interest payments as it continued record spending, despite the costs spiking ever higher.
The £24.5bn monthly borrowing total - fuelled by Andy Burnham's tax and spend policies - came as inflation also rose by more than expected in September, as desperate households battled higher fuel bills and the cost of living crisis.
Reform UK Shadow Chancellor Robert Jenrick blasted: "We simply cannot carry on like this. Debt is out of control and the tax burden is at post-war highs.
"Reform has laid out a plan to save more than £80 billion a year. We’d use that to cut the debt and cut taxes.
"We can achieve both by making the hard choices: take control of the welfare bill, end Net Zero vanity projects, and scrap foreign aid to rich countries."
The staggering figures were released by the Office for National Statistics, which said public sector net borrowing this year so far is £97.8bn, £6bn higher than expected.
The national debt - the total amount of money the country owes - now stands at an eye-watering £3 trillion, or £103,448 per household.
Every household in the country paid nearly £400 last month just servicing the Government's enormous debt pile. So far during this financial year debt interest payments are £61 billion - enough to pay for 1.1 million nurses.
Taxpayers are paying a terrifying price for Whitehall’s addiction to spending
But Healey is expected to raise taxes even further next week in a bid to meet his fiscal rules.
Total public spending was up by 7% in September when tax receipts rose by 5.2%, the ONS said.
"With debt interest soaring and borrowing overshooting forecasts yet again, taxpayers are paying a terrifying price for Whitehall’s addiction to spending.
"Instead of hiking taxes, the chancellor must use his first budget to get a grip on the public finances by making immediate cuts to Britain’s ballooning welfare bill."
But Healey is expected to raise taxes even further next week in a bid to meet his fiscal rules.
Total public spending was up by 7% in September when tax receipts rose by 5.2%, the ONS said.