Jacinda Ardern will name her new Cabinet tomorrow

Last night the Greens accepted a Cooperation Agreement with Labour to form the new Government which includes areas of cooperation on climate, environment and child and community wellbeing issues.

It'll also see co-leader James Shaw and Marama Davidson take on portfolios outside of Cabinet.

The Prime Minister says she would have named the Cabinet regardless of the decision around the Greens' deal.

She says ministers will be formally sworn in next Friday at Government House, and the first Cabinet meeting will be held that afternoon.