Financial help is now available from the Queensland Government's Red Cross flood appeal.

Flood appeal chairman Terry Mackenroth says the assistance is only available at this stage for people whose homes were so badly damaged they cannot be lived in.

He says the sooner people get their applications in the sooner they will get paid.

"You get $2,000 for an adult and a $1,000 for a dependant child," he said.

"What we want is for people to apply and we will process those forms so we can get the money out very quickly."

Application forms are available at local recovery centres or they can be downloaded from the Queensland Floods Appeal website or by calling 1800 901 933.

Applicants have until March 18 to make a claim.

So far about $7.5 million has been donated.

Mr Mackenroth says the appeal needs $15 million just to cover emergency payouts.