Te Pāti Māori registered 3 per cent in support, placing support for the parties left of centre neck and neck with the right.
Prime Minister Jacinda Ardern was still ahead as preferred prime minister, although the gap has closed slightly.
She polled 38 per cent as preferred prime minister, down one point compared to August, while National leader Christopher Luxon remained steady on 26 per cent.
Meanwhile, the right-track wrong-track indicator, which measures whether people, on balance, feel positively or negatively about the country, remained negative.
The August poll reported that statistic was negative for the first time since 2008.
The latest poll had 44 per cent of respondents stating the country was on the right track and 49 per cent believing it was off on the wrong track.
The results come after the Taxpayers' Union-Curia poll, released yesterday, had National and Act able to form a government.
National was up three points on last month's poll to 37 per cent and Act up one point to 12 per cent.
National's rise coincided with a record number of people saying the country was heading in the wrong direction.
Fifty-four per cent of people say the country is heading in the wrong direction, but just 32 per cent of people thought it was heading in the right direction.
The rise in support came amid declines in Labour's polling. It fell two points between August and September to 33 per cent, while the Greens stayed static at 10 per cent.