Originally Posted by
Jorgen
Strictly speaking I don't think they can deny you entry (you're an Australian citizen after all) but they can make it more trouble than it's worth. Direct quote from citizenship.gov.au:
> People trying to enter Australia as an Australian citizen but without an Australian passport face difficulties and delays
Given what the government considers "normal", I'd hate to see what they consider "difficulties and delays".
The problem wouldn't be entering Australia, but getting checked in in the first place, before you leave USA.
I've entered Australia as a citizen without passport (Immigration confiscated it but told me they could not deny me entry)
ETA is $20 for a 12 month period
That is OK as long as you don't want to stay more than 90 days at any time. It's also possible that they can change the fee at any time - quite possible given the current volatile security environment.