Britain risks Greek-style debt crisis from Trump tariffs
Prime Minister Keir Starmer with business leaders at No10
Sir Keir Starmer met with business chiefs in the aftermath of Donald Trump’s tariffs announcement - Simon Dawson/No 10 Downing Street

Donald Trump’s trade war risks plunging Britain into a Greek-style debt crisis, investors have warned.

A weaker economy coupled with the Treasury’s razor-thin headroom leaves Britain exposed to a “negative spiral” similar to Greece’s debt meltdown a decade ago, according to one of the world’s biggest investment firms.

Neil Robson, head of global equities at Columbia Threadneedle, said Britain’s £2.8 trillion debt pile, which nearly outstrips the size of the economy, leaves it vulnerable as Mr Trump’s tariffs increase the risk of a global recession.

He said Britain’s current financial situation mirrored the lead-up to the eurozone meltdown, when bond markets turned aggressively against Greece when investors suddenly realised the country could not balance its books.

He said: “If you think about the problem of being very indebted, you can be as indebted as you like as long as your nominal growth is higher than your interest rate.

“But if ever your nominal GDP growth stalls – not just on a temporary basis – below your interest costs then you’re in a real negative spiral and it can move really quickly. We saw that with Greece during the great financial crisis.”

The warning comes after Donald Trump’s so-called “liberation day” tariffs wiped $5 trillion (£3.8 trillion) off global stock markets and slashed growth forecasts around the world.

The Chancellor had banked on faster economic growth to offset Britain’s rising debt bill over the next five years, but an expected economic slump from the US president’s trade war has left that plan in tatters.

The president slapped a flat 10pc tariff on all nations, rising to as high as 50pc for the worst off.

Although Britain escaped with the flat 10pc rate, its exposure to a global economy means growth forecasts are likely to be pared back and could trigger a crisis for UK debt, known as gilts, which are bought and sold by global investors.

‘Double blow’ for Britain

Bruno Schneller, the managing partner at Erlen Capital Management, warned that the bond markets could turn against the UK if investors lose faith in Ms Reeves’s economic plan.

“Mr Trump’s tariff blitz risks triggering a global stagflation shock – and for the UK, that’s a recipe for a gilt crisis,” he said.

“Slower growth, higher inflation and a jittery investor base could combine to push UK borrowing costs higher at the worst possible time. This isn’t just trade war fallout, it’s the kind of external shock that can crack already fragile debt markets.”

He added: “Trump’s tariffs could deal a double blow to the UK – stalling global growth while fuelling inflation. That’s a nightmare for any Chancellor trying to stabilise debt. If markets lose confidence in the UK’s fiscal path, a gilt sell-off isn’t just possible – it’s probable.”