The Treasury gave the show away in the Budget's supporting documents, mentioning that while tax revenue is running at a lower level than expected, some of the Government's intended spending has been "rephased" to produce the surplus it has promised.
Opponents can call it a trick of "smoke and mirrors" but the verdict that matters comes from credit agencies. They are unlikely to be concerned. Spending rephased is spending we might never see unless surpluses can be maintained.
The Budget manages the election-year trick of appearing both fiscally responsible and socially generous. The provision of free medicine and visits to doctors for children under 13 is the main surprise. It is not restricted to families on lower incomes, it will be equally available to those who can easily afford to pay for their children's medical needs. It is not the most efficient use of funds for health, which absorbs an ever increasing slice of the annual Budget.
By contrast, a parental tax credit is to be increased by $70 a week and extended from eight to 10 weeks but it will be better restricted to low and middle income households. As expected, paid parental leave is to be extended from 14 weeks to 16 next year and 18 the year after. It will also become available to those in seasonal or casual employment or who have recently changed jobs.
Those are the main gifts in a Budget that reflects a good economic outlook. It is based on expected growth of 4 per cent this year, 3 per cent next year and 2 per cent for each of the following two years. Even so, despite surpluses, it does not bring net debt under 20 per cent of GDP in the forecast period.