Finance Minister Grant Robertson has confirmed that since the latest Covid-19 lockdown is more than seven days, business support now kicks in.

It comes after a new Covid-19 case was detected in the community yesterday afternoon.

Auckland has moved to alert level 3, while the rest of the country is at level 2 for a week from 6am today.

The latest lockdown triggers the wage subsidy scheme and that applies nationwide. This will be paid in a lump sum, Robertson said.

He said businesses can receive both the wage subsidy scheme and the new alert level 2 subsidy scheme.

Robertson said the Ministry of Social Development (MSD) has been providing support to the Papatoetoe area.

He is asking anyone in the area who needs to, to get in contact with MSD.

He said there are some families where a disruption like this would cause them "significant concern".

The Government has budgeted $400-$500 million for the coming seven days, Robertson said.

Robertson denied that the Government was "yo-yoing" New Zealand out of lockdown.

Robertson said the Cabinet meeting on Saturday started at 7.45pm - he said it was a call.

On the Covid costs, Robertson said: "We have this buffer available".

Based on previous lockdowns Auckland level 3 and rest on NZ at level 2 cost the economy about $440 million a week, according to ASB.