Relief for struggling motorists as fuel tax slashed

"The longer this war goes on, the worse the impacts will be," he said.

"I and the government understand that people are really worried but we have a plan to get through this."

Commonwealth, state and territory leaders adopted a new framework for responding to fuel shortages, which has four levels of action.

They are: plan and prepare, keeping Australia moving, taking targeted action and protecting critical services for all Australians.

The second level - keeping Australia moving - was currently in force, Mr Albanese said.

Along with cutting the fuel excise, the government will also cut the road-user charge, which affects heavy vehicles.

The two measures would work in tandem to provide cost-of-living relief, Treasurer Jim Chalmers said.

Together, the reduced tax and levy incomes would cost the budget $2.55 billion over the three-month period.

A scheduled increase to the heavy vehicle road user charge will also be delayed by six months, costing an additional $53 million in foregone revenue.

Earlier, Energy Minister Chris Bowen introduced emergency legislation to parliament to boost fuel stocks, stating the crisis served as a reminder that Australia was not immune from the impacts of war.

"The risk premium for purchasing discretionary cargoes is rising," he told parliament.

"Work to scope deals and secure additional fuel is already under way."

"That's why today's bill is so urgent. This bill creates a strategic reserve to secure the supply of strategic materials that are vital for Australia's economy."

The laws are expected to pass the lower house with bipartisan support on Monday and be debated in the Senate on Tuesday. 

Australia's fuel stocks remain at normal levels, but fears of future shortages and price spikes caused by the ongoing blockage of the Strait of Hormuz have spurred users to bulk-buy petrol and diesel, leading to localised shortfalls.