2026 Property Tax Due Dates
County-specificSeptember 30
Annual / First Semi-Annual Installment
December 31
Second Semi-Annual Installment
Frederick County Treasurer
Phone
(301) 600-1111Office Hours
How to Pay
Online
Search and pay at frederickcountymd.munisselfservice.com
By Mail
Mail payments to Frederick County Treasury Dept, 30 N. Market Street, Frederick, MD 21701.
In Person
In person, drive-thru at 30 N. Market Street, or drop box at front entrance (24/7). Drive-thru also at 4520 Metropolitan Court. — 30 N. Market Street, Frederick MD 21701, Mon-Fri 8am - 4pm
About Property Taxes in Maryland
Maryland property taxes are levied by both the state and local governments (counties and municipalities). Property is assessed at full cash value (100% of market value) by the State Department of Assessments and Taxation (SDAT). Counties then apply their own tax rates to that value. Maryland conducts reassessments on a three-year rolling cycle — approximately one-third of all properties are reassessed each year. When a property is reassessed and value increases significantly, Maryland phases in the increase over three years to reduce the impact on property owners. This phased-in value (rather than the full assessed value) is what your tax bill is based on.
Payment & Assessment
Maryland property tax bills are typically mailed in July, covering the fiscal year from July 1 to June 30. Payment schedules vary by county: Most counties: Due September 30 (full year) or semi-annual installments (September 30 and December 31, or other dates). Some counties offer a 30-day grace period. Late interest of 1% per month typically applies. Most counties offer online payment through the county government website. Contact your county finance department for payment options.
Statewide framework for Maryland. Your county's specific rates and deadlines are shown above.
Other Counties in Maryland
About Frederick County
Frederick County is located in Maryland, United States. As of the 2020 U.S. census, the population was 271,717. The county seat is Frederick. The county is part of the Capital region of the state.
Source: Wikipedia — content available under CC BY-SA 4.0
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Due dates shown are for reference only. Contact your county treasurer's office to confirm official deadlines before making payments.