From;
http://www.immi.gov.a...ty-business-owner.htm
Business assets
You (and your partner combined) had net assets in a qualifying business of AUD200 000 for at least two of the four fiscal years immediately before you apply.
Business turnover and ownership
The annual turnover of your main business (or two main businesses combined) must have been at least AUD500 000 in at least two of the four fiscal years immediately before you apply.
In addition, you (and your partner combined) must have owned at least:
* 51 per cent of the business where the turnover is less than AUD400 000 per annum.
* 30 per cent of the business where the turnover is AUD400 000 or more per annum.
* 10 per cent where the business is a publicly listed company.
Total assets
Your (and your partner's) total assets have a net value of at least AUD800 000, and were legally acquired and are capable of being transferred to Australia within two years of being granted this visa.
You have sufficient assets (additional to those above) of at least AUD100 000 to settle in Australia.