Should I buy this property for investment? Will this property be a negative gearing investment property? What the tax deductions I can get from investing on this rental property? How much do I need to pay out of pocket on a weekly basis for this investment property? The above listings are just a few questions that this FREE Investment Property Calculator can help you as a property investot to find the answers. In early 2008 I created an investment property calculator in Excel spreadsheet for my own personal use in order to help me with my property investment analysis. I used this investment property calculator workbook on several potential properties located in Sydney. In late 2008, I bought an one-bed investment apartment in Sydney South and secured an interest only loan including 100% of the property purchase price plus of the stamp duty etc. Now this property has become a positive cashflow investment property. This FREE Investment Property Calculator automatically calculates the income tax before and after deductions. However, it DOES NOT automatically populates all the government tax, duties, and the construction cost depreciation. If you would like to save your time from calculating all the government tax, duties, etc, you can purchase the Standard Investment Property Calculator for a value-for-money price of AU$29.00 for your personal use. Please note: All the investment property calculators (Free version, Standard version, or professional version) have the same set of following assumptions. (1) It is assumed the investor has an interest only home loan and the interest is deductible for tax purposes. (2) When calculating the "New Tax Payable" the tax rates applicable to Australian residents are used. The calculator does not incorporate any factors that might influence the amount of tax payable, such as Medicare Levy, HECS contributions, any rebates, and deductions. (3) The discount method is used to calculate capital gain tax if you hold the property for at least 12 months. The discount percentage is 50%. (4) All months are assumed to be of equal length. One year is assumed to contain exactly 52 weeks or 26 fortnights. This implicitly assumes that a year has 364 days rather than the actual 365 or 366.