Attention: Before filling out form, download and save to your computer. Property tax exemptions and deferrals.Note: These programs are only available to individuals whose primary residence is located in the State of Washington. Washington State is one of a handful of US states with a homestead exemption program that doesn't offer property tax relief. You can use the Washington homestead exemption to protect a house, condominium, mobile, or manufactured home serving as your principal residence. A property tax exemption means you can pay less property tax on a home you own. How do I apply for a property tax exemption? Please navigate to MyTax. DC.gov to begin the application process. Washington homestead exemptions only apply to your primary residence: they do not apply to vacation homes, cars or other personal property.