PA MediaSeveral cabinet ministers have written to the prime minister and the Treasury two weeks ahead of the Budget, to voice concerns over the scale of cuts their departments may face.
Anticipation is growing over which taxes the chancellor will raise in the Budget on 30 October.
But there are fears that steep spending cuts will also be needed to meet what Whitehall sources have suggested is a £40bn funding gap.
In what some say is an unusual move, ministers from hard-pressed departments are calling for a last minute rethink of the Budget, “going over the head” over the chancellor, to address the prime minister directly.