The pound has fallen to an all-time low against the US dollar, potentially worsening the cost-of-living crisis experts have warned.

Market confidence in the pound has plunged following the announcement of the Government’s new economic plans, revealed last week.

Plans included the biggest tax cuts in 50 years and Chancellor Kwasi Kwarteng signalled more were on the way.

Sterling hit its lowest level against the dollar since decimalisation in 1971, falling by more than 4% to just 1.03 dollars in early Asia trading before it regained some ground to about 1.07 dollars early on Monday.

The Northern Echo: PAPA (Image: PA)

The euro also hit a fresh 20-year low amid recession and energy security fears ahead of what is expected to be a painful winter across Europe as the war in Ukraine shows no sign of ending.

Experts warned the pound’s plunge towards parity with the dollar will send the cost of goods soaring even higher, potentially worsening the cost-of-living crisis, while it also means it will be more expensive for the Government to borrow money.

Shadow chancellor Rachel Reeves accused Chancellor Kwasi Kwarteng and Prime Minister Liz Truss of recklessly gambling with the UK’s finances.

The Labour MP told Times Radio: “Instead of blaming everybody else, the Chancellor and the Prime Minister, instead of behaving like two gamblers in a casino chasing a losing run, they should be mindful of the reaction not just on the financial markets but also of the public.”

She added: “They’re not gambling with their own money, they’re gambling with all our money, and it’s reckless and it’s irresponsible as well as being grossly unfair.”

Mr Kwarteng has previously brushed off questions about the markets’ reaction to his mini-budget – which outlined the biggest programme of tax cuts for 50 years – after it was announced on Friday using more than £70 billion of increased borrowing.

He claimed on Sunday the cuts “favour people right across the income scale” amid accusations they mainly help the rich.

But financial markets continue to be spooked and there are fears the Bank of England may even be forced to step in with an emergency interest rate hike to rein in soaring inflation fuelled by the tax cuts.