Browse source-reviewed property tax appeal guides for Maryland. County deadlines, filing methods, and available records can differ by county and tax year.
Each published guide identifies the public sources used for its deadline and filing summary. Confirm current requirements with the official filing authority before submitting anything.
Montgomery County: 2026 deadline guidance is 45 days from the assessment notice date. Guide: https://fairpath.app/property-tax-appeal/maryland/montgomery-county
Prince George's County: 2026 deadline guidance is 45 days from the assessment notice date. Guide: https://fairpath.app/property-tax-appeal/maryland/prince-georges-county
Source: Maryland Department of Assessments and Taxation, Homeowner's Guide to Property Tax, https://dat.maryland.gov/realproperty/pages/homeowners-guide.aspx. Reviewed 2026-07-16.
Source: Maryland Department of Assessments and Taxation, Montgomery County Reassessment Areas, https://dat.maryland.gov/realproperty/Pages/Montgomery-County-Reassessment-Areas.aspx. Reviewed 2026-07-16.
Source: Maryland Department of Assessments and Taxation, Petition for Review or New Owner Appeal, https://dat.maryland.gov/Documents/Accessible%20Documents/Real%20Property%20Miscellaneous%20Forms/Petition%20for%20Review%20or%20New%20Owner%20Appeal%20of%20Real%20Property_0426-A.pdf. Reviewed 2026-07-16.
Source: Maryland Department of Assessments and Taxation, Prince George's County Reassessment Areas, https://dat.maryland.gov/realproperty/pages/prince-georges-county-reassessment-areas.aspx. Reviewed 2026-07-16.
Source: Maryland Department of Assessments and Taxation, Property Owner's Bill of Rights, https://dat.maryland.gov/realproperty/Pages/Bill-of-Rights.aspx. Reviewed 2026-07-16.
Source: Maryland Department of Assessments and Taxation, Questions and Answers About Real Property Assessments, https://dat.maryland.gov/realproperty/Pages/Questions-and-Answers-About-Real-Property-Assessments.aspx. Reviewed 2026-07-16.