The government is counting on the proceeds of asset sales to plug a $6 billion hole which has opened in its accounts over the past three months.
The Treasury now reckons growth this year will be significantly weaker than it thought when it prepared the Pre-election Economic and Fiscal Update. It blames Europe.
But the effect is a smaller tax base leading to a lower revenue track and a slightly higher expenditure track, as unemployment will decline more slowly.
It means bigger deficits in the next three years and smaller surpluses the two years after that.
The cumulative effect is $5.6 billion less on the Government's bottom line over the next five years. All else being equal that would mean a corresponding rise in its debt compared with pre-election forecasts.