Two-thirds or so of the way through the Government's financial year the tax take is $1.1 billion below forecast and the Treasury warns half of that shortfall is not likely to be caught up by the end of the year.
But for the 2014/15 year, in which the Government has pledged a return to surplus, the Treasury expects stronger economic growth to boost revenues and deliver a tax take broadly similar to its forecast in last December's half-year economic and fiscal update (Hyefu).
Hyefu forecast a tax take of $65.7 billion next fiscal year, up $3.7 billion or 6 per cent on its forecast for the current year - which was predicated on economic growth of 3.4 per cent - and up 7 per cent on what, the Treasury concedes, now appears likely.
For the eight months ended February, most tax types were lower than forecast and apart from PAYE, where the error was less than 1 per cent, the shortfalls ranged from 3.2 per cent (for GST) to 6.8 per cent (for company tax).
"Overall it is expected that slightly over half of the $1.1 billion weaker year-to-date out-turn will remain at year end once the elements that appear timing-related reverse," said the acting chief government accountant, Fergus Welsh.