Just a cautious toe in the pond here but and i quote my accountant "if the share trading business activity turns over more than $20,000 in assessable income during the financial year you can claim your losses in the current year. There is also a $250k total income test that you need to pass, ensuring you have earned less than this amount for the financial year." I have small business and for nearly 20 years i have been able to use trade losses against my personal income. Always best to ask your own accountant or browse the ATO webpage imo.
