The Turnbull government is on 49 per cent behind Labor's 51 per cent in two-party preferred terms, the latest Fairfax-Ipsos poll shows.
Mr Turnbull's falling personal standing appears to be leading the broader decline, dropping 8 percentage points since June and a large 53 percentage points over the last year, the poll published in Fairfax Media shows.
An equal percentage of voters now either approves or disapproves of the way Mr Turnbull is doing his job, giving him a net approval rating of zero.
The poll found nearly two thirds of voters believe Opposition Leader Bill Shorten is supported by his party but less than half believe that of Mr Turnbull.
But Mr Turnbull has opened up his lead as preferred prime minister to 51-30, with 19 per cent undecided. He also leads Mr Shorten on eight of 11 leadership attributes but has suffered a 9 per cent drop in his rating as a "strong leader".
The nationwide phone survey of 1403 respondents was conducted from November 24 to November 26.
It found support for minor parties has soared to 18 per cent, five percentage points higher than at the July 2 election.
The primary vote of the Coalition is down 6 points to 36 per cent and Labor's is also down 6 points to 30 per cent. The Greens vote came in at 16 per cent.
