Bushfire-affected parents will get an extra $400 one-off payment for each child while volunteer firefighters will get at least $200 a day from the federal government's $2 billion bushfire recovery fund.
Prime Minister Scott Morrison hasn't put a limit on how much the government will spend on the payments, promising it will be "as much as it takes".
"I've said we will make the payments where we need to make the payments," he told reporters in Canberra on Wednesday.
Parents eligible for disaster recovery payments who have already got a $400 payment for their children will get an extra $400 to help as students go back to school. They don't need to re-apply as the new payments will flow through like the first ones.
Mr Morrison said the process for volunteer firefighters to get payments to cover their income loss will be sped up, while the job-search obligations for Newstart remains suspended.
"There will be no substantiation requirement for payments of up to $200 per day," he said.
"I think it will be a good shot in the arm for those primary producers and farmers especially who are already dealing with the fact they don't have an income at the moment and they are fighting back out and they're also fighting the fires.
"The last thing I want them to do is running around getting bits of paperwork."
Mr Morrison also said people who lost a major asset in the fires but didn't lose their house will also be eligible for disaster recovery payments.
Federal Bureau Chief Canberra