Harford County, MarylandProperty records & tax offices
Links open the listed public-office or service-provider website in a new tab. This directory does not collect payments.
Find the right property record
Use the property portal for ownership and assessed value, the collector for a bill or balance, and the map for parcel location. Have the address, owner name, or parcel number ready.
Tax bills & filing dates
These are the dates and qualifications recorded in the directory. Confirm your tax year and current deadline with the official office and your property’s notice.
- Tax bill mailing
- July 1, 2026; Harford County states property-tax bills are mailed July 1 each year.
- Payment deadline
- 2026 tax year: property owners have until September 30, 2026 to pay without additional costs; unpaid properties are prepared for the county tax sale after April 1, 2027.
- Assessment appeal
- Within 45 days of the date on the Maryland SDAT Notice of Assessment; Harford County states assessment appeals go to the Property Tax Assessment Appeals Board.
- Rate information
- FY2025–2026 published county rate $0.9779 + Maryland state rate $0.1120 = $1.0899 per $100 assessed value; FY2026–2027 rate was not separately verified in the reviewed official source, and municipal differentials apply.
Exemptions & appeals
View exemption application (opens in a new tab)Exemption filing
Homestead eligibility is a one-time SDAT application; the 2026 Maryland Homeowners' Property Tax Credit deadline is October 1, 2026; Harford County senior/veteran credit applications are generally due April 1 for the fiscal year.
Senior relief
Harford County offers a 20% property-tax credit for qualifying senior citizens and veterans, along with state Homeowners' and Homestead credits; exact FY2026 senior eligibility thresholds were not reproduced on the reviewed property-tax page.
Valuation limits
Harford County's homestead cap is 5% for eligible owner-occupied county taxable assessments; Maryland caps the state portion at 10%, and municipal caps vary.
For a valuation appeal, use the appeal date in the tax and filing section above. Keep your notice, supporting evidence, and proof of submission.
More exemption & appeal guidance →