Prime Minister Andy Burnham is facing a growing markets crisis, with borrowing costs surging and fears that Chancellor John Healey will be forced to impose tax rises worth up to £14 billion at the 28 October Budget. His first Commons statement, in which he blamed Brexit and Margaret Thatcher for the country's problems but offered little concrete policy, was criticised even by allies, deepening concerns that the government lacks a credible fiscal plan just as it faces PMQs.

Gilt yields rose during Burnham's Commons address and remain near multi-decade highs, driven partly by global pressures such as renewed US-Iran hostilities, persistent inflation and AI-bubble jitters, though the UK is seen as especially exposed. Long-time supporter Lord O'Neill warned Burnham must "get real" on welfare and pensions, while Burnham has pledged to stick to fiscal rules despite ruling out "crude cuts" and hinting at a possible council tax revaluation. The Resolution Foundation argued UK taxpayers could bear higher taxes, including for defence spending rising toward 3.5% of GDP, while Kemi Badenoch attacked Labour's plans and its £70 billion of tax rises.