Vicky Redwood, chief UK economist at Capital Economics, said borrowing is on course to overshoot "significantly" the official full-year forecast of £120 billion.
The main problem remains a sharp slowdown in tax receipts. And with the economy probably still in recession, receipts are likely to remain weak.
The combination of worsening public finances and renewed recession is likely to intensify calls for the Government to change tack on its austerity programme.
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