Labour could form a government with the support of the Greens and Te Pati Maori, according to the latest 1News Kantar Public Poll.
But the two main parties are still neck and neck, with just two points separating National and Labour.
Labour has dropped two points to 36 percent, while the Green Party has seen its support in the poll increase by four points to 11 percent.
Te Pāti Māori is up two points to three percent, meaning the left bloc could form a government with its support.
The National Party has dropped 3 points to 34 percent, while the ACT Party is up one point to 11 - not enough to form a government.
In the preferred Prime Minister stakes, Chris Hipkins is up four points to 27 percent.
National leader Christopher Luxon is down five points to 17 percent.
