Frederick County, Maryland Paycheck Calculator (2026)

Frederick County occupies northern Maryland between the Catoctin Mountains and the Pennsylvania border, with the City of Frederick functioning as the county seat. The county levies a 2.96% income tax on resident wages, slightly below Maryland's statewide cap used by the largest DC and Baltimore suburbs. The MD county income tax applies universally to MD residents, and Frederick sits in the intermediate band between the cap counties and the lowest-rate counties. Camp David, the presidential retreat established in 1942, sits inside Catoctin Mountain Park in the northwestern county. Fort Detrick on the western edge of the City of Frederick has anchored US biodefense research since 1943, housing USAMRIID (the US Army Medical Research Institute of Infectious Diseases), the National Cancer Institute at Frederick, and several other biomedical research agencies. Antietam National Battlefield, twenty miles west across the Washington County line, marks the September 17, 1862 Civil War battle that remains the bloodiest single day in American military history. Mount St. Mary's University in Emmitsburg and the I-70 corridor through Frederick anchor education and logistics employment. MD residents face no payroll-funded disability insurance. At $85,000 for a single Frederick County resident, federal income tax is $9,870, Maryland state tax is $3,826, FICA combined is $6,503, and the county line is $2,516, leaving take-home of $62,286. Run the calculator above with a different income to model Frederick state-and-county math at your real salary.