Maryland's income tax system has two distinct layers that catch many newcomers off guard. The state tax — running from 2% to 5.75% across eight brackets — is only part of the picture. Every Maryland county (and Baltimore City) levies its own local income tax on top, ranging from 2.25% in Allegany County to 3.2% in Montgomery County, Prince George's County, Howard County, and Baltimore City.
The result: a Maryland resident in Montgomery County earning $100,000 faces a combined effective income tax rate of around 7.45% — higher than a New York State resident (outside NYC) at the same income, and significantly higher than neighbouring Virginia, which has no county income tax. Understanding both layers is essential for anyone considering a move to the DC metro area, where Maryland and Virginia compete as bedroom communities for federal workers and private-sector employees.
Maryland uses eight progressive income tax brackets. These rates apply to Maryland taxable income — your federal adjusted gross income after the Maryland standard deduction and personal exemption are subtracted.
| Taxable Income (Single) | Rate |
|---|---|
| $0 – $1,000 | 2% |
| $1,000 – $2,000 | 3% |
| $2,000 – $3,000 | 4% |
| $3,000 – $100,000 | 4.75% |
| $100,000 – $125,000 | 5% |
| $125,000 – $150,000 | 5.25% |
| $150,000 – $250,000 | 5.5% |
| Above $250,000 | 5.75% |
Maryland's standard deduction is calculated as 15% of your gross income, subject to a floor and a cap:
In practice, most middle-income filers hit the cap — a single filer earning $16,000 or more receives the full $2,400 deduction (15% of $16,000 = $2,400). Above that income, the percentage shrinks because the cap holds flat.
The personal exemption is $3,200 for single filers and $6,400 for married couples. However, this exemption is phased out for incomes above $100,000, reducing by $1 for every dollar over the threshold (meaning it is fully eliminated at higher incomes). Combined, a single filer with income above $100,000 typically starts with roughly $5,600 in total deductions (standard deduction $2,400 + personal exemption $3,200 before phase-out begins), though the phase-out reduces the effective exemption benefit as income rises.
Every Maryland county and Baltimore City levies a local income tax on top of the state rate. This is not optional — it is automatically calculated and collected by the state alongside the state income tax when you file your Maryland return. The local tax applies to the same Maryland taxable income base as the state tax.
| County / City | Local Income Tax Rate | Combined Top Rate (State 5.75% + Local) |
|---|---|---|
| Montgomery County | 3.2% | 8.95% |
| Prince George's County | 3.2% | 8.95% |
| Baltimore City | 3.2% | 8.95% |
| Howard County | 3.2% | 8.95% |
| Baltimore County | 2.83% | 8.58% |
| Anne Arundel County | 2.81% | 8.56% |
| Frederick County | 2.96% | 8.71% |
| Carroll County | 3.03% | 8.78% |
| Harford County | 3.06% | 8.81% |
| Washington County | 3.0% | 8.75% |
| Allegany County | 3.05% | 8.8% |
| Garrett County | 2.65% | 8.4% |
The combined statutory top rate (state 5.75% + Montgomery County 3.2%) reaches 8.95% — this applies to income above $250,000 of Maryland taxable income. At middle incomes where most taxpayers sit, the state bracket is 4.75%, and the combined rate with a 3.2% county tax is 7.95%. This is the rate most DC-area workers in Maryland encounter across the bulk of their working income.
Why does Maryland have county income taxes? Maryland counties rely heavily on the income tax share (called the 'piggyback' tax, a holdover from earlier state-local fiscal arrangements) to fund local schools, public safety, and services. Unlike in Virginia — where localities rely primarily on property taxes — Maryland distributes income tax collections to counties, making the local income tax a fundamental part of the state's fiscal architecture rather than an optional add-on.
These examples use a single filer with the standard deduction ($2,400) and personal exemption ($3,200) for a total deduction of $5,600, producing taxable income of gross income minus $5,600. The personal exemption phase-out above $100,000 is noted where relevant. County tax examples use Montgomery County at 3.2%.
At $150,000, the personal exemption begins phasing out; assume reduced exemption of ~$1,600, giving taxable income of approximately $145,600.
At $250,000, personal exemption is fully phased out. Taxable income: ~$247,600.
These figures are estimates based on the standard deduction and single-filer personal exemption. Actual tax will vary based on itemised deductions, credits, filing status, and the specific phase-out calculation for the personal exemption. Always verify with a tax professional or the Maryland Comptroller's official tax tables.
The Washington DC metro area is split across three tax jurisdictions — Maryland, Virginia, and the District of Columbia — and the choice of where to live has significant income tax consequences for the hundreds of thousands of federal government employees and private-sector workers who commute to DC. Non-residents who work in DC pay DC income tax (not their home state tax), but residents who work within their home state face their state's full rate.
For DC-area residents who work in Maryland or Virginia (not DC itself), the comparison is direct:
| Scenario ($100K income, single) | Combined Income Tax | Effective Rate |
|---|---|---|
| Maryland (Montgomery County) | ~$7,452 | ~7.45% |
| Virginia (no local income tax) | ~$5,350 | ~5.35% |
| DC (resident, top bracket 10.75%) | ~$6,400 | ~6.40% |
A federal employee earning $100,000 who lives in Fairfax County, Virginia pays roughly $2,100 less in income tax annually than an equivalent employee living in Montgomery County, Maryland — purely from the residential location decision. Over a 30-year career, that difference compounds significantly.
This dynamic partly explains why Northern Virginia (Fairfax, Arlington, Alexandria) has attracted large numbers of federal workers and tech employees, while Maryland counters with arguments around schools, proximity to DC agencies, and the availability of MARC commuter rail to downtown DC. The Maryland state government has periodically considered local income tax reduction to improve competitiveness with Virginia, but no major reduction has been enacted as of 2026.
Important rule for DC workers: Residents of Maryland who commute to DC for work pay DC income tax on their DC wages — not Maryland income tax on those wages. Maryland and DC have a reciprocity agreement structure for certain workers, but the general rule is that DC employers withhold DC income tax. This means the county income tax burden described above applies most directly to Marylanders who work within Maryland, not those commuting into DC.
Maryland's treatment of retirement income is more complicated than neighbouring Pennsylvania (which exempts most retirement income) and less generous than some Sun Belt states, but does offer targeted relief:
Maryland does not tax Social Security benefits. Regardless of income level, Social Security retirement and disability benefits are fully exempt from Maryland income tax. This aligns Maryland with the majority of states (37 states do not tax Social Security as of 2026).
Military retirement pay is fully exempt from Maryland income tax. Maryland has a significant veteran and military retiree population given its proximity to the Pentagon, Fort Meade, and other installations. This exemption makes Maryland meaningfully more attractive for military retirees compared to its treatment of civilian pensions.
Maryland offers a pension exclusion for certain public employees, but it is not universal. Retirees aged 65 and over (or those who are totally and permanently disabled) may exclude up to $36,200 of pension income from a qualified retirement plan from Maryland income tax. For those under 65 who retired from a qualifying public safety job (law enforcement, fire service, corrections), a separate exclusion may apply.
Private-sector retirement income from 401(k) plans, traditional IRAs, and private pensions is generally subject to Maryland income tax after the standard deduction and personal exemption, without a specific pension exclusion. This contrasts with Pennsylvania, which fully exempts 401(k) and IRA distributions for those over 59½, making Pennsylvania notably more retirement-friendly for private-sector workers.
A Maryland retiree with $80,000 in income (made up of $30,000 Social Security + $50,000 from a 401(k) or private pension) would owe Maryland income tax on approximately $44,400 of that income (the $50,000 pension minus standard deduction and personal exemption), plus the applicable county income tax — a total bill roughly in the $4,000–$5,500 range depending on county. A Pennsylvania retiree in the same situation would owe approximately $0 in state income tax on the same income profile.
Maryland occupies a distinctive position in the Mid-Atlantic income tax landscape — its state rates are comparable to neighbours, but the mandatory county income tax pushes combined burdens well above what residents of Virginia or Pennsylvania face at equivalent incomes.
| State | Top State Rate | Local Income Tax | Combined Top Rate | At $100K (Single, Effective) |
|---|---|---|---|---|
| Maryland | 5.75% | 2.25%–3.2% | Up to 8.95% | ~7.45% (Montgomery Co.) |
| Virginia | 5.75% | None | 5.75% | ~5.35% |
| DC | 10.75% | N/A (DC is one jurisdiction) | 10.75% | ~6.40% |
| Pennsylvania | 3.07% flat | ~1%–3.9% (local earned income tax) | Varies by municipality | ~4.5%–6% depending on locality |
| New York State | 10.9% | NYC: up to 3.876%; suburbs: 0–3.5% | Up to 14.8% (NYC) | ~6.5% (non-NYC upstate) |
| Delaware | 6.6% | Wilmington: 1.25% city wage tax | 7.85% (Wilmington) | ~5.5% statewide |
The Virginia advantage: Virginia's top rate of 5.75% is identical to Maryland's state top rate, but Virginia levies no local income tax. A Virginia resident earning $250,000 pays only state income tax at 5.75%. A Maryland resident at the same income in Montgomery County pays state tax plus 3.2% county tax — a combined statutory top rate approaching 8.95%, roughly $8,000 more in annual income tax than their Virginia counterpart at that income level.
The Pennsylvania comparison: Pennsylvania's flat 3.07% rate is the lowest state income tax rate among the major Mid-Atlantic states. However, Pennsylvania municipalities levy earned income taxes (Philadelphia: 3.75% for residents; most suburban localities: 1%–2%), which narrow the gap. Pennsylvania's retirement income exemptions (401(k), IRA, pension distributions over 59½ are fully exempt) make it considerably more attractive than Maryland for retirees with substantial retirement savings.
When Maryland wins: For high earners in specific industries, Maryland's overall tax and living cost picture can be competitive. Howard County and Montgomery County offer some of the best public school systems in the country, a factor many families weigh alongside the tax cost. The DC proximity premium — being within MARC or Metro commuting distance of the largest employer (the federal government) in the region — supports housing values and employment stability that offset the higher income tax burden for many residents.
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