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Maryland · County guide

Harford County, Maryland property tax appeals

A Harford County property tax appeal starts with the Harford County Supervisor of Assessments (State Department of Assessments and Taxation), then the Harford County Property Tax Assessment Appeal Board. This season's deadline has not been announced yet. Our forecast for the Harford County Supervisor of Assessments (State Department of Assessments and Taxation): Dec 31, 2026 – Jan 4, 2027 (not an official date). There is no filing fee.

This season

Next deadline
Expected Dec 31, 2026 – Jan 4, 2027
Forecast, not an official date
Harford County Supervisor of Assessments (State Department of Assessments and Taxation)
Source: Maryland Code, Tax - Property § 14-503 (Maryland General Assembly)Last checked

Check a Harford County home for free

Here the check uses your own figures: you enter the assessed value from your notice or tax bill and the year you bought. We compare how much it has grown with the house price index for your area and show the numbers as your figures. You decide and file yourself.

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Filing fee
No filing fee
Where to file first
Harford County Supervisor of Assessments (State Department of Assessments and Taxation)
Office address
Mary E.W. Risteau District Court Multi-Service Center, 2 South Bond Street, Suite 400, Bel Air, MD 21014 · (410) 836-4800
Our coverage
Free check available
  • Independent guide — not affiliated with Harford County or any government agency.
Last updated
October 1, 2026
Sources last checked
October 1, 2026
Status
Verified guide

How we verify facts

What are the Harford County reassessment results, tax rates, caps and credits?

How much did Harford County reassessments change values?

Harford County reassessment results by year
ReassessmentAreaCompared withResidentialCommercialAll propertyHomes that rose
January 1, 2026[1]Area 22023 values+10.6%+11.4%+10.7%30,954 of 31,078 (99.6%)
January 1, 2025[2]Area 12022 values+20.3%+15%+19.8%—
January 1, 2024[3]Area 32021 values+23.9%+17.7%+22%—

What are the Harford County tax rates, caps and local credits?

Solar credit
Harford County offers a one-time-per-property Solar Energy Tax Credit for homes with solar equipment; the Office of the Treasurer (410-638-3191) sends the application.[4]
Assessment limitsCounty homestead credit cap (yearly limit on the taxable increase)
Harford County's homestead credit cap for fiscal 2026-27 bills is 5% (taxable assessment increase on an owner-occupied home is limited to 5% a year).[5]
Property tax rateConstant yield
SDAT certified a fiscal 2027 constant yield tax rate of $0.9353 per $100 for Harford County (outside the towns), against the fiscal 2026 rate of $0.9779; a rate above the constant yield rate requires advertising and a public hearing.[6]
Property tax rateCounty rate
Harford County's real property tax rate for fiscal 2026-27 is $0.9779 per $100 of assessed value, plus the State rate of $0.1120.[5]

When and where do I file a Harford County property tax appeal?

Who hears a Harford County appeal?

The stages in order. We are not affiliated with any of these offices.

  1. 1

    Harford County Supervisor of Assessments (State Department of Assessments and Taxation)

    Filing: appeal

  2. 2

    Harford County Property Tax Assessment Appeal Board

    Filing: appeal

Where is the Harford County office?

Harford County Supervisor of Assessments (State Department of Assessments and Taxation)[10]

Harford County Supervisor of Assessments (SDAT local assessment office)

Address
Mary E.W. Risteau District Court Multi-Service Center, 2 South Bond Street, Suite 400, Bel Air, MD 21014
Fax
(410) 838-5914
Hours
8:00 to 4:30 (weekdays)

Harford County Property Tax Assessment Appeal Board[11]

Harford County Property Tax Assessment Appeals Board

Address
Mary Risteau Service Center, 2 South Bond St., Suite 400, Bel Air, MD 21014
Fax
(410) 838-5914

Tax office[7]

Harford County Bureau of Revenue Collections

We are not affiliated with this office. Hours can change, so call before you visit.

Has the Harford County property tax appeal deadline been announced?

Upcoming
Not announced yet
Forecast
Expected to close between December 31, 2026 and January 4, 2027
Last checked

We will update this page when the new dates are posted.

Which Harford County filing windows are coming up?

Harford County filing windows
ClosesAreaWho hears itStatus
Expected Dec 31, 2026 – Jan 4, 2027CountywideHarford County Supervisor of Assessments (State Department of Assessments and Taxation) · Official source · Last checked Sep 29, 2026Forecast, not an official date

When is the deadline to appeal a property tax assessment in Harford County?

The next filing window we list is predicted, not yet announced: Expected to close between December 31, 2026 and January 4, 2027 (predicted, not yet announced) — Harford County, Harford County Supervisor of Assessments (State Department of Assessments and Taxation).

Deadline detailLate payment
Unpaid Harford County property tax accrues interest from October 1 at 1.5% a month on the county portion and 1% on the state portion, plus a one-time 6% penalty on the county portion.[7]
Deadline detailTax bill schedule
Harford County mails property tax bills on July 1; the base amount is due by September 30 and interest and penalties are added from October 1.[7]

How do I file a property tax appeal in Harford County?

Harford County Property Tax Assessment Appeal Board: There is no fee to appeal an assessment to the Harford County Property Tax Assessment Appeal Board.

Filing feeHarford County Property Tax Assessment Appeal Board
There is no fee to appeal an assessment to the Harford County Property Tax Assessment Appeal Board.[8]

Upcoming appeal deadlines in every county we track

Which Maryland rules apply in Harford County?

These rules are the same in every Maryland county. Each link opens the rule on the Maryland page, where the Maryland-wide sources are listed.

What do Harford County property taxes and assessments look like?

Figures from public records and the Census, each with its source. They describe the county's homes as a group, not the value of any one home.

How much could a lower assessment save on Harford County property taxes?

Tax rate used: $1.0899 per $100 of assessed value (county and State rates, fiscal 2025-26).

How much could a lower assessment save on Harford County property taxes?
ExampleTax saved
$10,000 less assessed value$109 a year
10% less on a home assessed at $233,400 (the county's 25th percentile)$254 a year
10% less on a home assessed at $322,100 (the county's median)$351 a year
10% less on a home assessed at $444,200 (the county's 75th percentile)$484 a year

These are examples: the tax rate times a lower assessed value. Exemptions, credits, caps and phase-ins can make the real change smaller. This is not a prediction for any home. Rate source: Local Real Property Tax Rates in Maryland, FY 2022-FY 2026 (Department of Legislative Services).

What do homeowners in Harford County pay in property tax?

The median owner-occupied home in Harford County was worth $386,400, and the median property tax its owners paid was $3,448 a year, according to the Census Bureau's American Community Survey.

Median home value
$386,400
Margin of error ±$5,089.
Median property tax paid per year
$3,448
Margin of error ±$47.
Median tax as a share of median value
0.89%
A ratio of two medians, not a tax rate. Your own bill depends on your assessment and local levies.
Owner-occupied homes
81,092
Margin of error ±1,182.

These are survey estimates of what owners reported about their own homes. They are not assessed values, not tax rates, and not an opinion of what any home is worth.

They cannot tell you whether your own assessment is fair. That takes a comparison with similar homes, which we offer only in counties we have researched.

From the county's assessment and appeal records

Homes in the county's assessment records
90,175
Median assessed value
$322,100
Middle half of assessed values
$233,400 to $444,200

Source: The county's open assessment data, aggregated by us (each home's latest final value, tax years 2024 to 2026). Our calculation from public records; not an opinion of any home's value.

How Harford County home assessments are spread

Assessed values of 90,175 homes in the property classes our free check covers (RES, SFR, TH, CND), each home's latest final value, tax years 2024 to 2026. Half are between $233,400 and $444,200; the median is $322,100. The last bar holds everything above it.Source: Assessment records from the county's open data (each home's latest final value, tax years 2024 to 2026), retrieved Sep 27, 2026; our calculation.

Median home assessment by election district

  1. Election district 04$423,000
  2. Election district 03$382,400
  3. Election district 05$326,500
  4. Election district 06$298,300
  5. Election district 01$271,500
  6. Election district 02$257,300

Median assessed value by election district: highest Election district 04 ($423,000), lowest Election district 02 ($257,300).

Median assessed value of homes in the property classes our free check covers (RES, SFR, TH, CND) for each election district with at least 50 such homes, each home's latest final value, tax years 2024 to 2026.Source: Assessment records from the county's open data (each home's latest final value, tax years 2024 to 2026), retrieved Sep 27, 2026; our calculation.

Median home value: Harford County compared

  1. Harford County$386,400
  2. Typical Maryland county$380,550
  3. Typical US county$185,300

Harford County $386,400; Typical Maryland county $380,550; Typical US county $185,300

Census survey medians for owner-occupied homes. "Typical" is the middle county of the 24 in Maryland and of all US counties.Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25077.

Median property tax paid: Harford County compared

  1. Harford County$3,448
  2. Typical Maryland county$3,389
  3. Typical US county$1,619

Harford County $3,448 a year; Typical Maryland county $3,389 a year; Typical US county $1,619 a year

Census survey medians for owner-occupied homes. "Typical" is the middle county of the 24 in Maryland and of all US counties.Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25103.

How often is property reassessed in Harford County?

Harford County is split into three SDAT reassessment areas: Area 1 next reassessed January 1, 2028, Area 2 January 1, 2026 and Area 3 January 1, 2027. Harford County Area 3 (last assessed effective January 1, 2024) is the area reassessed next, for January 1, 2027.

Reassessment cycle
Harford County is split into three SDAT reassessment areas: Area 1 next reassessed January 1, 2028, Area 2 January 1, 2026 and Area 3 January 1, 2027.[9]
Area reassessed next year
Harford County Area 3 (last assessed effective January 1, 2024) is the area reassessed next, for January 1, 2027.[9]

Homes in Harford County

From the Census Bureau's American Community Survey: how old the homes are, what kind they are, what owners say they are worth and the property taxes they pay. These figures describe all homes together, not any one home.

Median year built
1986
All housing units, owned and rented
Single-family houses, detached or attached
81%
of 105,468 housing units
Owned homes with a mortgage or similar loan
69%
of 81,092 owner-occupied homes

Home values reported by owners

  1. Less than $50,0003%
  2. $50,000 to $99,9991%
  3. $100,000 to $199,9996%
  4. $200,000 to $299,99920%
  5. $300,000 to $399,99923%
  6. $400,000 to $499,99921%
  7. $500,000 to $749,99920%
  8. $750,000 to $999,9994%
  9. $1,000,000 to $1,999,9991%
  10. $2,000,000 or more1%

Home values reported by owners in Harford County: Less than $50,000 3%; $50,000 to $99,999 1%; $100,000 to $199,999 6%; $200,000 to $299,999 20%; $300,000 to $399,999 23%; $400,000 to $499,999 21%; $500,000 to $749,999 20%; $750,000 to $999,999 4%; $1,000,000 to $1,999,999 1%; $2,000,000 or more 1%.

Share of owner-occupied homes in each value range. Owners give this value in the survey; it is not the assessed value.Source: U.S. Census Bureau, American Community Survey, 2020–2024 5-year estimates, table B25075.

Property taxes owners pay a year

  1. No real estate taxes5%
  2. Less than $8002%
  3. $800 to $1,4995%
  4. $1,500 to $1,9998%
  5. $2,000 to $2,99922%
  6. $3,000 or more58%

Property taxes owners pay a year in Harford County: No real estate taxes 5%; Less than $800 2%; $800 to $1,499 5%; $1,500 to $1,999 8%; $2,000 to $2,999 22%; $3,000 or more 58%.

Share of owner-occupied homes by the real estate taxes paid in a year, with or without a mortgage.Source: U.S. Census Bureau, American Community Survey, 2020–2024 5-year estimates, table B25102.

Source: U.S. Census Bureau, American Community Survey (2020–2024 5-year estimates, tables B25075, B25102, B25035, B25024 and B25081), retrieved Oct 1, 2026. Survey estimates have a margin of error.

More questions about Harford County property tax appeals

When is the Harford County property tax appeal deadline?

This season's deadline has not been announced yet. We expect it to close between December 31, 2026 and January 4, 2027. This is our forecast, not an official date. In Maryland, when you get a new assessment notice you can appeal it to the Supervisor of Assessments within 45 days of the date of the notice.[12][13]

Is there a fee to file a property tax appeal in Harford County?

There is no fee to appeal an assessment to the Harford County Property Tax Assessment Appeal Board.[8]

Where do I file my first property tax appeal in Harford County?

In Harford County, an assessment appeal is filed online with the control number on the notice, or on the paper form returned to the local SDAT assessment office, within 45 days of the notice date.[14]

Can my assessed value go up if I appeal in Harford County?

The same Maryland rule applies in every county. Read the Maryland rule

Which details are not confirmed yet?

We show a fact only after a person has checked it against the official source. These are still being checked. Until then, ask the Harford County Supervisor of Assessments (State Department of Assessments and Taxation):

  • When a filing counts as on time

Property tax guides for Harford County homeowners

Counties next to Harford County

Maryland property tax appeals: all counties

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Where do these facts come from?

  1. [1]January 1, 2026 Press Release and Report (Reassessment Group 2) | Maryland State Department of Assessments and TaxationOfficial guide or FAQ · last checked Oct 1, 2026
  2. [2]January 1, 2025 Press Release and Report (Reassessment Group 1) | Maryland State Department of Assessments and TaxationOfficial guide or FAQ · last checked Oct 1, 2026
  3. [3]January 1, 2024 Press Release and Report (Reassessment Group 3) | Maryland State Department of Assessments and TaxationOfficial guide or FAQ · last checked Oct 1, 2026
  4. [4]FAQs - CivicPlus.CMS.FAQ (Harford County, MD — Treasury FAQs)Official guide or FAQ · last checked Sep 30, 2026
  5. [5]Tax Rates 2026-2027 - Tax Table & Homestead Credit Caps - July 2026 (SDAT PDF)Official guide or FAQ · last checked Sep 30, 2026
  6. [6]Constant Yield Tax Rate 2026 | Maryland State Department of Assessments and TaxationOfficial notice, form, calendar or rules · last checked Oct 1, 2026
  7. [7]FAQs - CivicPlus.CMS.FAQ (Harford County, MD — property tax FAQs)Official guide or FAQ · last checked Sep 30, 2026
  8. [8]Assessment Appeal Process | Maryland State Department of Assessments and TaxationOfficial guide or FAQ · last checked Sep 30, 2026
  9. [9]Harford County Reassessment Areas | Maryland State Department of Assessments and TaxationOfficial guide or FAQ · last checked Sep 30, 2026
  10. [10]Maryland Assessment Offices | Maryland State Department of Assessments and TaxationOfficial guide or FAQ · last checked Sep 30, 2026
  11. [11]Appeals Boards | Maryland Property Tax Assessment Appeals BoardsOfficial guide or FAQ · last checked Sep 30, 2026
  12. [12]Maryland Code, Tax - Property § 14-503 (Maryland General Assembly)Statute or regulation · last checked Sep 27, 2026
  13. [13]Maryland Code, Tax - Property § 14-502 (Maryland General Assembly)Statute or regulation · last checked Sep 27, 2026
  14. [14]Assessment Appeal Process | Maryland State Department of Assessments and Taxation (Wayback capture)Official guide or FAQ · last checked Sep 29, 2026
  15. 15.County open data: md harford assessmentsRetrieved Sep 27, 2026; aggregated by us for the charts above.
  16. 16.U.S. Census Bureau, ACS 2020–2024 5-year estimates, table B25077: Median value (dollars), owner-occupied housing units — Harford County, Maryland
  17. 17.U.S. Census Bureau, ACS 2020–2024 5-year estimates, table B25103: Median real estate taxes paid, owner-occupied housing units — Harford County, Maryland
  18. 18.U.S. Census Bureau, ACS 2020–2024 5-year estimates, table B25003: Tenure (owner- and renter-occupied housing units) — Harford County, Maryland

Data credits: Census ACS (public domain) · Census county adjacency (public domain)

Not affiliated with Harford County or any government agency. Not legal advice. Not an appraisal.

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