I sure would like to know the line that ATO draws when it will apply Part IVA to these sorts of things. It seems ridiculous that Part IVA can override a perfectly legal activity (claiming capitalised interest) and make it illegal. Just make sure the term 'tax benefit' never appears anywhere on any literature, act surprised if ATO auditors mention how much you are benefitting from your capitalised interest structure and it seems that you will get away with it.