I assume the company is based in Australia and therefore that this income of $9999 is sourced in Australia?
If that is the case you will be subject to non-resident income tax rates which for this amount will be 29 cents in the dollar.
(there is no tax - free threshold for non-residents).
Check this site out for rates:

http://www.ato.gov.au/individuals/content.asp?doc=/content/12333.htm

The only way you will be able to reduce it is to have tax allowable deductions.