You may file this application online at onestop.md. The homeowner must apply using the one-time Homestead Tax Credit Eligibility application.Homestead Tax Credit More Info. Maryland requires all homeowners to submit a onetime application to establish eligibility for the Homestead Tax Credit. If you just bought a property in Maryland, there is nothing that you need to do right now to qualify for the Maryland Homestead Tax Credit. Homestead Property Tax Credit. Applying for the Maryland Homestead Tax Credit is an easy process. It is a one time application for a property.