Property tax exemptions and deferrals. Note: These programs are only available to individuals whose primary residence is located in the State of Washington.Attention: Before filling out form, download and save to your computer. The easiest way to apply for the exemption is to bring all the required information to our office. You may be eligible if you have limited income and you're at least 61 years old in the year you apply for the exemption. The 2023 Legislature passed Substitute House Bill 1355, which makes changes to property tax exemptions and deferral programs for senior citizens. If you are a senior citizen or a person with disabilities with your residence in Washington State you may qualify for a property tax reduction. The new law provides for an increase in homestead exemptions based on "the county median sale price of a singlefamily home in the preceding year." Limited income deferral. Learn more about the program to provide tax relief to property owners on a limited income.