Stamp duty charges on the property can be calculated easily using a property registration charges calculator online. Stamp duty calculation is done on the basis of the rates that are decided by the state government. For Mumbai, it is 5% of the property value. Factors that affect the stamp duty charges are the location of the property, type of property, usage of the property, etc. There are various stamp duty calculators available online which can easily determine the exact charges that are to be paid.