Rishi Sunak is going head-to-head with Sir Keir Starmer at his first PMQs as prime minister.
The clash comes as his chancellor Jeremy Hunt delays the government’s fiscal statement to November.
The Halloween “Budget” has been delayed for nearly three weeks to ensure Mr Sunak’s new government can “reach the right decisions”.
The first meeting of the new cabinet was told the crucial “fiscal plan” – which is poised to set the UK back on a path to austerity with huge spending cuts – has been put back.
Jeremy Hunt, retained as chancellor, has warned of “eye-watering” decisions to balance the books, a task made harder by the market crash that followed the disastrous mini-budget.
Elsewhere, Mr Sunak is coming under fire for appointing Suella Braverman to his cabinet just days after she resigned over a security breach.
The prime minister made Ms Braverman his home secretary on Tuesday after reshuffling his cabinet during his first day in office.