How to appeal property taxes in Maryland
County-specific guides with this year's deadlines, the exact forms, and step-by-step filing instructions — researched from official Maryland sources. Or skip the reading: run your address through the free check and get your county's answer in about two minutes.
Anne Arundel County
Anne Arundel County appeals are due 45 days after your SDAT notice. County rate is $0.968/$100; FY2027 taxes due Sept. 30, 2026; Homestead credit applies.
Baltimore City
Baltimore City appeal deadline: Jan. 4, 2027 petition deadline; learn the $2.248 per $100 tax rate, 4% Homestead cap, and filing steps.
Baltimore County
Baltimore County’s 2026 assessments: Feb. 13 reassessment deadline, Jan. 4 petition date. Get the forms, filing addresses, and a savings example.
Howard County
Howard County property tax appeals are due 45 days after your SDAT notice, or by the Jan. 4, 2027 deadline. County rate: $1.044/$100; taxes due Sept. 30.
Montgomery County
Montgomery County, MD’s 2026 reassessment appeal deadline was Feb. 13; the next petition deadline is Jan. 4, 2027. File for free directly with SDAT.
Prince George's County
Prince George's County property tax appeals are due 45 days after your SDAT notice, or by the Jan. 4, 2027 petition deadline. County rate: $1.00/$100; taxes due July 1, no interest through Sept. 30.
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