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.Download the Act 50 Applications(PDF, 1MB) and complete it. The Homestead Credit is only available to homeowners with a principle residence in Maryland. 1. Fill in the parcel number of the property for which you are seeking a homestead exclusion. Property owners who received the recent assessment and complete the tax credit application will be eligible for the new tax credit rate. Complete Form 502CR, following the instructions provided. Submit your completed Form 502CR with your Maryland return. Are there any household members over eighteen (18) years of age who are not a spouse or coowner and who cannot be claimed as. For homeowners with a principal residence in Maryland, the Homestead Tax Credit limits increases in assessed property value.