Basic Mathematics provides a good home property tax calculator. To calculate the tax, users enter the market value of their property, the assessed value of their property and the tax rate. Users then hit the calculate button, populating the property tax.
The market value of the property is what the house or property is worth on the open market, explains Basic Mathematics. The website defines assessed value as a percent of the market value. This percentage is determined by the state. The tax rate is directly related to the assessed value; therefore, a lower assessed value translates to a lower property tax rate. An assessed value of 100 means that the house is worth the market value.