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Montgomery County, MarylandProperty records & tax offices

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.

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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; Montgomery County states annual and semiannual tax bills are mailed and posted by July 1 each year.
Payment deadline
2026 tax year: annual bills and first semiannual installments must be received by September 30, 2026 and become delinquent October 1; second semiannual installments must be received by December 31, 2026 and become delinquent January 1, 2027.
Assessment appeal
Within 45 days of the date on the Maryland SDAT Notice of Assessment; Montgomery County directs assessment appeals to SDAT and states taxes remain due during an appeal.
Rate information
FY2025–2026 published county rate $0.6742 + Maryland state rate $0.1120 = $0.7862 per $100 assessed value; municipal and special-area charges vary.
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Exemptions & appeals

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

Homestead application had to be on file with SDAT by May 1, 2026 for the county Income Tax Offset Credit on bills beginning July 1, 2026; the Maryland Homeowners' Property Tax Credit deadline is October 1, 2026.

Senior relief

Montgomery County offers a Senior Property Tax Credit equal to 50% of the combined State and County Homeowners' Property Tax Credit when an owner is at least 65; it also offers a separate credit for owners age 65+ who have owned and occupied the home 40 consecutive years or are retired military. The Homeowners' Tax Credit application is required.

Valuation limits

Montgomery County's homestead cap is 10% for eligible principal residences; the Town of Kensington uses a 5% cap. Maryland's state portion is capped at 10%, and the cap generally does not apply in the first year after purchase.

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 →