Online: Go to Homestead Tax Credit Eligibility Application page, and complete the online form. Filing an online application will be faster than mailing one in.You may file this application online at onestop.md. GENERAL INFORMATION: Property owners applying for a residence homestead exemption file this form and supporting documentation with the appraisal district in. Taxpayers can complete transactions on MyTax DC or call 202-727-4TAX. Maryland requires all homeowners to submit a onetime application to establish eligibility for the Homestead Tax Credit. To schedule an appointment, call 844-545-5640.