Maryland · Washington County · Local exemptions · Updated Oct 2026
Washington County, MD property tax exemptions (2026)
The property tax breaks that are set or run locally in Washington County, on top of Maryland’s statewide rules: what each is worth here, who qualifies, where to apply and the deadline.
What is different in Washington County
Washington County adds a Senior Citizen Supplement to the state Homeowners' credit for owners 65+ that ignores the first $15,000 of income instead of the state's $8,000, which can significantly raise the credit. The 5% Homestead cap is the same for the county and all of its towns.
Washington County tax: the taxable assessment on your home can rise at most 5% a year; State tax: 10% a year. You pay no tax on the part of an increase above the cap.
Set by
state program, local amount
Tax year
2026-27
Who qualifies
Owner-occupants of their principal residence; no age or income limit.
How to apply
One-time application to SDAT (online at Maryland OneStop / sdathtc.dat.maryland.gov, or the paper form). Check SDAT Real Property Search first: if it shows 'No Application', apply.
Credit = county tax (on the lesser of assessed value or $300,000, after Homestead) minus 0% of the first $15,000 of income, 5% of the next $1,000 and 9% of income over $16,000, minus the county part of the state credit.
Set by
state program, local amount
Tax year
2026-27
Who qualifies
Homeowner 65+; owner-occupied home; net worth $200,000 or less.
Income limit
Combined gross income $60,000 or less.
How to apply
The state Homeowners' Tax Credit application; SDAT decides eligibility for both.
Roughly what an exemption could save you a year: the value it takes off, times your tax rate.
Eligibility finder for Washington County
Answer a few questions to see which property tax breaks may fit you. Nothing you type here is sent anywhere.
Document checklist for Washington County
Pick the breaks you plan to apply for. You get a checklist of forms, documents, steps and deadlines to print or keep on your phone.
Questions about property tax exemptions in Washington County
What property tax exemptions are there in Washington County?
Washington County adds a Senior Citizen Supplement to the state Homeowners' credit for owners 65+ that ignores the first $15,000 of income instead of the state's $8,000, which can significantly raise the credit. The 5% Homestead cap is the same for the county and all of its towns. Local breaks here: Homestead Property Tax Credit (local cap); Senior Citizen Supplement – Homeowners Property Tax Credit.
Where do I apply for a property tax exemption in Washington County?
Washington County Treasurer's Office Phone: 240-313-2110 Address: Washington County Office Building, 35 West Washington St., Suite 102, Hagerstown, MD 21740. Also: Maryland Department of Assessments and Taxation (SDAT) – Tax Credit Programs, which state program: Homestead and Homeowners' tax credits (and county supplements run through the HTC form). Also: SDAT Washington County Assessment Office, which SDAT local assessment office: assessments, disabled-veteran and blind exemptions.
When is the deadline to apply in Washington County?
Homestead Property Tax Credit (local cap): not confirmed; ask the office. Senior Citizen Supplement – Homeowners Property Tax Credit: October 1 (state HTC deadline).
Is there an income limit for Washington County’s local breaks?
Homestead Property Tax Credit (local cap): no income limit listed. Senior Citizen Supplement – Homeowners Property Tax Credit: Combined gross income $60,000 or less.
Do I have to reapply every year in Washington County?
The county also has a credit for 1%-100% service-connected disabled veterans and surviving spouses (amount not published; call the Treasurer's Office) and a Fallen Heroes credit.
Median effective tax rate for Washington County: U.S. Census Bureau, American Community Survey, 2020–2024 5-year estimates, county figures as published by Tax Foundation. The rate is property taxes paid divided by home value.