Please read the instructions on the back of this form before you complete it. Attach this form to the homestead exemption application (form DTE 105A) if the applicant is requesting the homestead exemption based on disability status.Senior citizens and the permanently disabled are eligible to receive a Homestead Exemption (reduction in real estate taxes). If you're a veteran moving to a different state, you'll want to know what exemptions you'll have to look forward to. Learn more in this post. Douglas County has additional exemptions for 62 years of age or older, disabled veterans or their surviving spouses, and totally disabled homeowners.