How quickly can i buy and sell shares without being considered and taxed a broker?

Question

By this I mean can I buy some shares and sell them later that day even a few times a year and not be taxed or considered a broker. Its just when I buy shares now I get the certificate a few weeks later confirming I own them, but what happens if I bought them and sold the really quickly (to make a profit of course)?

This is on the Austrlian stock market ( . AX) by the way.

Answer 1

I guess it depends on trade laws in Australia.  Here in the US, we get around the problem by trading in a margin account.