Maryland's second income tax: every county — and Baltimore City — levies its own rate on Maryland taxable income, collected with the state tax but set locally. All 24 jurisdictions at the Comptroller's 2026 rates, including the two counties that have moved to graduated schedules.
Anne Arundel (2.70% → 3.20%) and Frederick (2.25% → 3.20%) graduate their county tax by Maryland taxable income and filing status — the calculator applies their full schedules. Every other county is a flat rate on the same base.
Rate applied: 3.2% flat on Maryland taxable income of $78,450.
| County tax | $2,510 |
| State income tax | $3,674 |
| Combined Maryland tax | $6,184 |
Yes: the county sets the rate, the state collects it on the same return, and it is calculated on Maryland taxable income after the state standard deduction and exemptions — which is the base this calculator takes from the verified Maryland engine.
Maryland apportions by residency period on the part-year return; this calculator prices a full year in one county.
Both adopted graduated county schedules (Anne Arundel's took effect in 2023, Frederick's in 2026) — lower rates at modest incomes rising to the 3.20% ceiling. The Comptroller's 2026 withholding facts carry both schedules in full, and this page applies them exactly.
Maryland county income tax for 2026 on top of the state tax: every county and Baltimore City at the Comptroller's official rates — Montgomery County 3.20% of Maryland taxable income is $2,510 on an $85,000 salary, beside $3,674 of state tax. Anne Arundel and Frederick's new tiered schedules included.
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Maryland’s county income taxes on Maryland taxable income: all 24 jurisdictions at the Comptroller’s 2026 rates, two of them graduated.
On $85,000 single in Montgomery County: $2,510 of county tax beside $3,674 of state tax.
Worcester is the lowest county at 2.25%; Dorchester and Kent the highest at 3.30%.
Yes — in force since 2023 and published in the Comptroller’s 2026 withholding facts; Frederick adopted its own for 2026.
Maryland taxable income, after the state standard deduction and personal exemptions.
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