To qualify for the Exemption Program, you must be at least 61 years of age OR disabled OR a disabled veteran with a 80 percent service-connected disability. To be eligible for the property tax exemption, you must own and occupy a primary residence in Washington and have a qualifying income.Learn more about exemptions and deferrals for senior citizens, persons with disabilities, and disabled veterans. Find out how to qualify and apply. Who is eligible for the Washington State Disabled Veteran Property Tax Exemption? 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. 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.