UK 30-year borrowing costs rose to their highest level since 1998 on Tuesday, as part of an international sell-off of government debt. This increase in gilt yields is occurring amid rising global financial risks, including the Iran war, a plunging Japanese yen, and the early stages of the AI revolution.
The UK's borrowing rates are currently the highest in the G7. This status is largely attributed to a 20-year record in managing inflation and a 43% dependency on energy imports in 2025.
Prime Minister Andy Burnham and Chancellor John Healey have not yet made statements that have prompted bond investors to reconsider the UK's financial standing. Economists, including Simon French of Panmure Liberum, express scepticism that policies such as "public control" of utilities will lead to lower government-led inflation.
Former Goldman Sachs economist Jim O'Neill stated that the tone of Burnham's recent Commons speech was "the last thing investors wanted to hear." He suggested that high government borrowing costs would necessitate Labour addressing the state pension's triple lock and welfare spending. The upcoming budget next month is anticipated by the bond market to be a significant event.