You may file this application online at onestop.md. Online: Go to Homestead Tax Credit Eligibility Application page, and complete the online form.Maryland requires all homeowners to submit a onetime application to establish eligibility for the Homestead Tax Credit. Go to channel Applying for the Homeowners Property Tax Credit and the Homestead Tax Credit Maryland Volunteer Lawyers Service Homestead exemption applications are free to file. Most appraisal districts have them online. Maryland requires all homeowners to submit a one-time application to establish eligibility for the Homestead Tax Credit. Maryland requires all homeowners to submit a one-time application to establish eligibility for the Homestead Tax Credit. Do Homestead Exemptions Only Apply to a Primary Residence? First, you will need to submit a completed application form.