Stamp Duty Calculator Home / Stamp Duty Calculator Stamp Duty Calculator from calculatorsonline.com.au To use this Stamp Duty Calculator you need to input the following:Property Value/Purchase PriceChoose the StateAre you Investor or Home Owner?Are you First Home Buyer?What type of Property you are buying?If you are Foreign Purchaser or not (for some states)Note: – First home Owners are Entitled to the Current Grant. [hfe_template id='1873']