Aberdeen, Harford County, Maryland Property Taxes

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Property Taxes in Aberdeen, Maryland

Median Aberdeen, Maryland effective property tax rate: 0.85%, significantly lower than the national median of 1.02%, and lower than the Maryland state median of 1.21%.
Median Aberdeen, Maryland home value: $260,700
Median annual Aberdeen, Maryland tax bill: $2,244, $156 lower than the national median property tax bill of $2,400.

How are property taxes in Harford calculated?

Property taxes in Aberdeen, Maryland are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.

Understanding Aberdeen's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Aberdeen, knowing local tax details benefits homeowners and investors.

Last Updated April 13, 2026

Aberdeen, Harford County, Maryland Property Tax Bill Calculator

Property Assessed Value

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

0.85%

Estimate Property Tax Bill

$2,216

$2,056

How Does the Aberdeen Property Tax Calculator Work?

Use this Aberdeen property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Aberdeen's median effective tax rate of 0.85% — based on actual property records in Harford County — to generate your estimate.

Enter your property's estimated assessed value — the figure the local assessment office uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Aberdeen's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.

Your bill may vary by ZIP code within Aberdeen: rates range from 2244.00 in 21001 to 2244.00 in 21001, primarily due to differences in school district levies and local assessment districts. Aberdeen's 0.85% median effective tax rate is lower than the 1.21% state median tax rate and below the national median property tax rate of 1.02%.

For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across Aberdeen.

About Aberdeen Property Taxes

About Property Taxes in Aberdeen, Harford, Maryland

Aberdeen's median effective property tax rate of 0.85% is lower than the Harford County state median of 1.21% and higher than the national median of 1.02%. This rate reflects the Harford County base levy combined with local school district levies and special taxing districts that vary by subdivision throughout the city.

Property tax rates are not uniform across Aberdeen. Homeowners in the 21001 ZIP code carry a median effective rate of 0.85%, while those in 21001 pay 0.85%. This spread — 0.00 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across Harford County. Understanding which part of Aberdeen you live in can make a meaningful difference to your annual tax bill.

Aberdeen homeowners who believe their assessed value is too high can file a formal appeal with the local Tax Assessor before the February 13, 2026 deadline each year.

If your estimated bill above seems higher than expected, Ownwell can review your assessment and protest on your behalf. You only pay if we save you money.

Property Tax Rates Across Aberdeen, Harford County, Maryland

As noted earlier, local government entities set tax rates, which can vary widely within a state.

Why? Because annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate.

While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process.

Below, you can compare Aberdeen's effective property tax rate to other cities in Maryland and the median property tax rates in Maryland and the U.S.

Property Tax Rates Across Aberdeen, Harford County, Maryland

Source: Ownwell

0.85%

0.98%

1.10%

Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.

Median Effective Aberdeen Tax Rate

0.85%

Median Effective Harford County Tax Rate

0.96%

Median Effective Maryland Tax Rate

1.21%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Aberdeen, Harford County, Maryland

Zip	10th Percentile	25th Percentile	Median Tax Rate	75th Percentile	90th Percentile
21001	0.74%	0.81%	0.85%	0.94%	0.97%

Source: Ownwell

Property Tax Assessment Values Across Aberdeen, Harford County, Maryland

When examining property taxes in Aberdeen, Maryland, understanding the distinction between market value and assessed value is crucial.

The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The Harford County assessment office estimates the market value for tax purposes.

The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.

Assessment notices in Harford County are sent in December each year. They typically reach your mailbox by the middle of the month.

Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. For Aberdeen, the median home price is $260,700, and the median tax bill is $2,244, compared with the national median property tax rate of 1.02% and the national median property tax bill of $2,400. Taxes vary across the county, with the 21001 ZIP code showing the highest median home price at $260,700.

Property Tax Assessment Values Across Aberdeen, Harford County, Maryland

Source: Ownwell

$191,700

$303,250

$414,800

Median Aberdeen Market Value

$260,700

Median Harford County Market Value

$305,000

Median Maryland Market Value

$338,400

Median United States Market Value

$235,294

Property Tax Assessment Values Across Aberdeen, Harford County, Maryland

Zip	10th Percentile	25th Percentile	Median Home Price	75th Percentile	90th Percentile
21001	$132,700	$185,200	$260,700	$347,400	$469,400

Source: Ownwell

Property Tax Bills Across Aberdeen, Harford County, Maryland

Property tax bills in Aberdeen are based on the assessed market value of a home and the local tax rate set by Harford County and other taxing authorities. When a property’s assessed value rises, the tax bill usually rises too, unless the rate changes. For homeowners, this means the amount owed can shift as market conditions and assessments change over time.

With a median home price of $260,700, Aberdeen homeowners face tax bills that vary widely depending on the property and its assessment. The 25th percentile tax bill is $1,566, while the 75th percentile is $3,100 and the 90th percentile reaches $4,122. The median tax bill in the area is $2,244, which is slightly below the national median property tax bill of $2,400. That makes understanding your assessment especially important, since even small changes can affect what you pay each year.

Property Tax Bills Across Aberdeen, Harford County, Maryland

Source: Ownwell

$1,838

$3,104

$4,370

Median Aberdeen Tax Bill

$2,244

Median Harford County Tax Bill

$2,948

Median Maryland Tax Bill

$4,092

Median United States Tax Bill

$2,400

Property Tax Bills Across Aberdeen, Harford County, Maryland

Zip	10th Percentile	25th Percentile	Median Tax Bill	75th Percentile	90th Percentile
21001	$1,135	$1,566	$2,244	$3,100	$4,122

Source: Ownwell

Don't miss the deadline to appeal!

Dates
Appeal Deadline	February 13

Links
Harford Tax Assessor
Website	sdat.dat.maryland.gov

Frequently Asked Property Tax Questions in Aberdeen, Maryland

How are property taxes calculated in Aberdeen, Maryland?

Property taxes in Aberdeen, Maryland are calculated by multiplying your property's assessed value by the applicable tax rate set by local taxing authorities. The assessed value is determined by the county assessor and may differ from your property's market value depending on local assessment ratios and exemptions.

How do I appeal my property taxes in Aberdeen, Maryland?

To appeal your property taxes in Aberdeen, Maryland, you typically need to file a formal protest or appeal with your local appraisal district or assessor's office by the stated deadline. You'll need evidence such as comparable sales, a recent independent appraisal, or documentation of property condition issues. Ownwell can handle this entire process for you.

What property tax exemptions are available in Aberdeen, Maryland?

Common property tax exemptions in Aberdeen, Maryland include homestead exemptions for primary residences, senior citizen exemptions, veteran exemptions, and disability exemptions. Exemption amounts and eligibility requirements vary by county. Contact your local appraisal district or check Ownwell for details specific to your property.

When are property taxes due in Aberdeen, Maryland?

Property tax deadlines in Aberdeen, Maryland vary by county but typically include an assessment notice period in spring or early summer, followed by an appeal deadline, and a tax payment due date in the fall or winter. Check with your county assessor's office for specific dates in your area.

How can Ownwell help reduce my property taxes in Aberdeen, Maryland?

Ownwell provides professional property tax appeal services in Aberdeen, Maryland. Our team analyzes your assessment, gathers evidence, files all paperwork, and represents you at hearings — all with no upfront cost. You only pay a percentage of your savings if we successfully lower your tax bill.