You should be seeking some advice from a good accountant who specialises in asset protection also. Companies have a fixed tax rate but don't get the 50% CGT discount so even if you are on the top personal tax rate of 47% after the CGT discount your personal rate may still be lower than the company tax rate. Many of my clients including myself utilise a family trust to allow asset protection but also tax flexibility. Having said that it depends on you situation and a heap of other factors.