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Allegany County, MarylandProperty records & tax offices

Search property records sdat.dat.maryland.gov (opens in a new tab)View tax bills alleganygov.org (opens in a new tab)Open parcel map alleganygov.org (opens in a new tab)

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.

Property lookup help →Find a parcel number →

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 2026; Maryland real-property tax bills are mailed in early July, but the exact county mailing day was not verified.
Payment deadline
July 1, 2026 tax year; annual bills and first semiannual installments are due September 30, 2026, and the second semiannual installment is due December 31, 2026; interest begins October 1 for unpaid annual/first installments.
Assessment appeal
Within 45 days of the date on the Maryland SDAT Notice of Assessment; a PTAAB appeal follows within 30 days of the supervisor's final notice.
Rate information
FY2025–2026 published county/state real-property rates: $0.975 + $0.112 = $1.087 per $100 assessed value; FY2026–2027 county rate was not separately verified in the reviewed source.
More payment & deadline guidance →

Exemptions & appeals

View exemption application (opens in a new tab)
Exemption filing

Homestead Tax Credit eligibility is a one-time application for the principal residence; the separate 2026 Maryland Homeowners' Property Tax Credit application deadline is October 1, 2026.

Senior relief

Maryland Homeowners' Property Tax Credit is income-based and is not age-limited; the 2026 application deadline is October 1, 2026. No separate age-based local program was verified in the reviewed official sources.

Valuation limits

4% maximum annual taxable-assessment increase for eligible owner-occupied properties under the July 1, 2026 Maryland county homestead assessment-cap schedule; the Homestead Tax Credit must be established with SDAT.

For a valuation appeal, use the appeal date in the tax and filing section above. Keep your notice, supporting evidence, and proof of submission.