more directors buying again!, page-14

I think how it works in australia is as follows

45 days for Dividend payments for CGT discount in some circumstances

Ordinary share trading is added as youre yearly income - total profits minus losses equals a positive or negative capital gains tax amount - A CGT loss is only able to be carried over and used to offset future CGT gains - which are calculated the applicable income rate _ ie all profits from share trading are counted as wages ie 17% - 34% or 48% in the $ depending on which level of income tax you apply to.

That is my understanding anyway - others will be able to give you a bigger and better idea.