If you have 9 months of trading you can borrow up to $100,000. If you have been over 18 months you are eligible for an unsecured loan of up to $250,000.
While there are no hard and fast rules, you will generally be eligible for an unsecured business loan equivalent to 1 to 2 months trading turnover.
If you can offer some security you may be eligible for a partially secured business loan of $500,000 or more.