There is a Homeowner's Property Tax Credit Program, including a County Supplemental tax credit, which is administered by the State and available to eligible homeowners based on household income. Applications must be filed no later than September 1st of each tax year. For information or an application for the Homeowner's Property Tax Credit Program, please call the State of Maryland at 410.767.4433 or 800.944.7403 or visit their website by clicking on the link below.