The prime minister and treasurer will discuss the bushfire crisis with big and small business heads in Canberra on Tuesday.

Business and industry groups are expected to tell the government what it can do to help bushfire-affected businesses.

The government says it is open to ideas and proposals from businesses to help get local economies back on track.

Prime Minister Scott Morrison, Treasurer Josh Frydenberg and Small Business Minister Michaelia Cash will each address the roundtable.

“These businesses are viable, but vulnerable and we need to do everything we can to get them back on their feet,” Senator Cash said.

“The impact and devastation in areas of these bushfires have been unprecedented.”

While it will address property loss suffered by businesses, the meet will also look at the bushfires’ impact on supply chains, staffing and customer levels.

The meet comes as Westpac estimates the bushfire crisis will cost the Australian economy $5 billion and cut up to 0.5 per cent of its economic growth.

The government has already announced a series of disaster relief payments and grants available for businesses, farms and local councils.