Property taxes are a part of the cost of owning a home. When you buy a home you not only have to consider the cost of the monthly mortgage payment, but you also need to consider property taxes, homeowners insurance, any HOA dues, maintenance, and utilities.
Many people wrongly assume property taxes are a fixed cost, and that whatever amount is billed when you first buy the house, is what the amount will be for the life of owning the home. However, property taxes can change quickly after buying a home. Most counties assess property value annually, and adjust the amount due annually.