Maryland requires all homeowners to submit a onetime application to establish eligibility for the Homestead Tax Credit. Gov or call 410-767-2165 toll free.Online: Go to Homestead Tax Credit Eligibility Application page, and complete the online form. MD homestead tax credit eligibility application deadline is Dec. If handwritten please print legibly. It's called the Homestead Tax Credit, and for homeowners who haven't filed the onetime application, the deadline is on May 1. Application timeline: February 2025 - October 1, 2025. It's called the Homestead Tax Credit, and for homeowners who haven't filed the onetime application, the deadline is on May 1. The Maryland Department of Assessments and Taxation (SDAT) is administering this application process. Maryland Homestead Property Tax Credit Program Application.