I think Terry is right. You can take the IP IO from your offset account and not from your LOC. I agree there is cashflow benedits but this is also tax avoidance.
Another question on the same topic.
If I pay my council rates with my credit card e.g. $400 per quarter. Can I pay $400 from my LOC account or not. By doing this I can get interest free period of my credit card.
Rgds
Steve