You may file this application online at onestop.md. Maryland requires all homeowners to submit a onetime application to establish eligibility for the Homestead Tax Credit.To open an electronic copy of the Application, click here . Eligible homeowners must: Be at least 65 years of age. The exemption may be claimed in addition to the General Homestead Exemption. A property tax exemption is like a discount applied to your EAV. If you qualify for an exemption, it allows you to lower your EAV. After you complete Form. 502B, enter your total exemption amount on your Maryland return in Part C of the Exemptions section. It also provides information on three property tax relief programs available to Colorado senior homeowners: the.