July is normally a strong month for tax income for the Treasury, but total receipts fell 0.8%, driven by a drop in corporation tax, a rise in Government and benefit spending.
If this pattern continues it is thought the Chancellor could have a £35 billion hole in his plan to balance the books.
It's not just the worse than expected public borrowing figures that might ruin George Osborne's parliamentary recess.
Only 16% of the British public appear to trust the Chancellor George Osborne to see the country through the current economic situation.
More spending and more borrowing are the opposite of what the government hopes to achieve.