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Tues. Sept. 8 2026 — The Baltimore City Assessment Office is currently closed to the public due to a power outage. They are still available to assist customers by phone at: (410) 767-8250.
Phone: 410-767-1184 Outside the Baltimore Metro Area: 1-888-246-5941 Maryland Relay: 1-800-735-2258 General inquiries email: [email protected] View a list of frequently contacted DAT officesYour local government tax billing & collection office contacts
We're available on the following channels.
