PRINCE FREDERICK, MD – The Calvert County Treasurer’s Office will move from its current location in the Calvert County Circuit Courthouse at 175 Main St. to the new County Administration Building at 150 Main St. on Tuesday, Jan. 6, 2026.
The payment drop box for the Treasurer’s Office will relocate to the same address on that date. Residents who rely on the drop box for submitting payments, such as property taxes or fees, should use the new location starting Jan. 6 to avoid delays.
Business hours will change with the move. Beginning Jan. 6, the office will open from 8:30 a.m. to 4 p.m. Monday through Friday. The office previously operated until 4:30 p.m. This adjustment aligns with the transition to the centralized facility.
The relocation forms part of Calvert County Government’s ongoing initiative to consolidate departments into the County Administration Building, a four-story structure designed to improve service delivery, enhance inter-departmental collaboration, and reduce long-term costs for taxpayers. Construction on the building at 150 Main St. began with a groundbreaking ceremony September 12, 2023. Other departments, including the Board of County Commissioners and Planning and Zoning, moved into the facility late in 2025. The Treasurer’s Office move completes a key phase in this consolidation effort, as judicial offices such as the Clerk of the Circuit Court and Register of Wills remain at the courthouse.
The Treasurer’s Office serves as the primary collector of local revenue in Calvert County. It handles county property taxes, personal property taxes, permit fees, landfill revenue, water and sewer payments, gambling and liquor license fees, dog tag sales, and various other charges. The office researches and validates deeds before they are recorded at the Clerk of the Circuit Court. It also manages the annual Calvert County Tax Sale, a process governed by Maryland law where properties with unpaid taxes may be auctioned to recover delinquent amounts. Taxpayers can pay online through the county’s MUNIS self-service portal, by mail, via carriers like USPS, FedEx or UPS, or in person. The office supports eRecording of documents through services like Simplifile for faster processing without in-person visits.
Prince Frederick, the county seat, features Main Street as a central corridor where government buildings are clustered. The Circuit Courthouse at 175 Main St. has long housed multiple county functions, while the new administration building across the street at 150 Main St. provides modern amenities, including customer service windows on the first floor for the Treasurer’s Office. This proximity maintains convenience for residents conducting business in the downtown area.
For inquiries, contact the Treasurer’s Office at 410-535-1600, ext. 2630, or visit the county website. Residents are advised to update any recurring payment plans or records to reflect the new address after the move.
The consolidation into the County Administration Building reflects broader trends in Maryland counties to centralize operations in efficient facilities. This approach can streamline access to services for the approximately 95,000 residents of Calvert County, who often travel to Prince Frederick for administrative needs.