need for some reality, page-6

"Capital gains tax in Australia is part of the income tax system rather than a separate tax. Net capital gains (after concessions are applied) are included in a taxpayer's taxable income and taxed at marginal rates."

http://en.wikipedia.org/wiki/Income_tax_in_Australia#Capital_Gains_Tax

Assuming zero income, does this mean the first $6000 in capital gains are not taxed at all?