I'm looking into the feasibility of doing my first subdivision project in NSW. How do you calculate the GST and CGT payable? High-level scenario: - Purchase price $950k - Sell rear lot for $550k within 12-months of purchase date. - Retain front lot & the 5BDR house on it as an investment property. Rents for $640 p/wk. - Use profit from land sale to pay down mortgage on front property so that it's positively geared. Thanks for any advice and help.