The Illinois Historic Resident Freeze-2015 is a property tax relief program that is available to qualifying Illinois homeowners. It freezes the assessed value of a home that has been owned and occupied by the same owner for at least 15 years, as long as the home is located in an area that has been designated as a National Register Historic District. This freeze helps to ensure that property taxes do not go up due to increases in the property’s value. There are two types of Illinois Historic Resident Freeze-2015: the Homestead Exemption and the Senior Citizens Assessment Freeze. The Homestead Exemption allows qualified homeowners to receive a reduction in their assessment if the home has been owned and occupied by the same owner for at least 15 years. The Senior Citizens Assessment Freeze allows seniors aged 65 or older to receive a property tax freeze on their primary residence regardless of whether it is located in a historic district or not.