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.This is a program put into place to help manage large assessment increases on your property taxes of your personal residence here in Maryland. Homestead Tax Credit More Info. Please navigate to MyTax. DC.gov to begin the application process. Apply for the Homestead Tax Credit online using the Homestead Tax Credit Eligibility Application. The following conditions must be met to apply for the tax credit: The dwelling must be the owner's principal residence. Owners are encouraged to apply for the Homestead Tax Credit if the property is their principal residence and they have not applied. Residents may apply using State Homeowners' Property Tax.