Maryland County Piggyback Tax Explained: Rates and Impact
Maryland is the only state that allows counties and Baltimore City to impose a local income tax — commonly called the “piggyback tax” — on top of the state income tax. Every Maryland county charges this tax, with rates ranging from 1.75% (Worcester County) to 3.2% (several counties). For most Maryland residents, the piggyback tax adds $2,600-$6,400 per year to their total tax burden, depending on income and county. It’s a cost that many homebuyers overlook when comparing Maryland to other states, and it partially offsets Maryland’s relatively low property tax rates.
The piggyback tax is the reason Maryland’s total tax burden is higher than Virginia’s despite having lower property taxes. Understanding how it works — and how it interacts with the rest of Maryland’s tax structure — is essential for making a smart decision about where to buy. Use our Debt-to-income calculator to see how the piggyback tax affects your take-home pay and borrowing capacity.
County Piggyback Tax Rates
| County | Piggyback Rate | Tax on $100K Income | Tax on $150K Income | Tax on $200K Income |
|---|---|---|---|---|
| Montgomery | 3.20% | $3,200 | $4,800 | $6,400 |
| Howard | 3.20% | $3,200 | $4,800 | $6,400 |
| Prince George’s | 3.20% | $3,200 | $4,800 | $6,400 |
| Baltimore City | 3.20% | $3,200 | $4,800 | $6,400 |
| Baltimore County | 3.20% | $3,200 | $4,800 | $6,400 |
| Anne Arundel | 2.81% | $2,810 | $4,215 | $5,620 |
| Frederick | 2.96% | $2,960 | $4,440 | $5,920 |
| Harford | 3.06% | $3,060 | $4,590 | $6,120 |
| Carroll | 3.03% | $3,030 | $4,545 | $6,060 |
| Charles | 3.03% | $3,030 | $4,545 | $6,060 |
| Calvert | 2.80% | $2,800 | $4,200 | $5,600 |
| St. Mary’s | 3.17% | $3,170 | $4,755 | $6,340 |
| Washington | 2.80% | $2,800 | $4,200 | $5,600 |
| Worcester | 1.75% | $1,750 | $2,625 | $3,500 |
| Garrett | 2.65% | $2,650 | $3,975 | $5,300 |
The piggyback tax is charged as a flat percentage of Maryland taxable income — it’s not graduated like the state income tax. Combined with the state income tax (2-5.75%), total Maryland income tax ranges from 3.75% (lowest bracket + lowest county) to 8.95% (highest bracket + highest county). For comparison, Virginia’s flat rate is 5.75% with no county income tax.
How It Affects Your Total Tax Burden
| Tax | Maryland (MoCo) | Virginia (Fairfax) | New Jersey (Bergen) |
|---|---|---|---|
| State Income Tax ($150K) | $7,500 | $8,400 | $8,500 |
| County/Local Income Tax | $4,800 | $0 | $0 |
| Property Tax ($500K home) | $5,000 | $5,600 | $11,150 |
| Car Tax (personal property) | $0 | $1,200 | $0 |
| Total Annual Tax | $17,300 | $15,200 | $19,650 |
Maryland’s piggyback tax puts its total tax burden between Virginia (lower) and New Jersey (higher). The piggyback tax is the reason Maryland’s total tax picture is higher than Virginia’s despite having lower property taxes. For long-term owners, the Homestead Credit’s compounding savings increasingly favor Maryland over Virginia as years pass — but in the early years, Virginia is the cheaper state to live in from a pure tax perspective.
The Piggyback Tax and Your Mortgage Qualification
The piggyback tax affects your take-home pay, which affects how much you can borrow. Lenders look at your gross income and total monthly obligations (including taxes) when calculating DTI. Here’s how the piggyback tax impacts purchasing power:
| Household Income | Monthly Piggyback Tax (3.2%) | Annual Impact | Equivalent Mortgage Reduction |
|---|---|---|---|
| $100,000 | $267 | $3,200 | ~$50,000 less borrowing power |
| $150,000 | $400 | $4,800 | ~$75,000 less borrowing power |
| $200,000 | $533 | $6,400 | ~$100,000 less borrowing power |
A household earning $150,000 in Montgomery County (3.2% piggyback) has roughly $400/month less available for housing compared to the same household in Virginia (0% county income tax). That $400/month translates to approximately $75,000 in mortgage capacity at current rates. It’s not the only factor, but it’s a meaningful one that Maryland buyers should account for. Use our Debt-to-income calculator to model the impact.
How the Piggyback Tax Is Calculated and Paid
The mechanics are straightforward:
Related: How Much Are Property Taxes in Maryland in 2026: Rates by County
- Calculation: The piggyback tax is a flat percentage of your Maryland taxable income (line 21 on your MD state return). It’s not based on federal AGI — Maryland-specific deductions and exemptions reduce the base.
- Filing: You don’t file a separate county return. The piggyback tax is calculated on your Maryland state income tax return (Form 502) and paid simultaneously.
- Withholding: Your employer withholds the piggyback tax from each paycheck alongside state income tax. If you’re self-employed, you make estimated quarterly payments that include the county portion.
- County determination: Your county of residence on December 31 determines which county’s rate applies for that year. If you move mid-year from a 3.2% county to a 2.8% county, you pay the rate for the county where you live on December 31.
Piggyback Tax for Special Situations
Retirees
Maryland offers a generous pension exclusion ($39,500 in 2026 for those 65+) that shields a significant portion of retirement income from both state and county taxes. Social Security is also exempt from Maryland income tax. A retiree with $60,000 in pension income and $30,000 in Social Security pays piggyback tax only on the taxable portion of the pension ($60,000 – $39,500 = $20,500). At 3.2%, that’s $656/year — much less than a working household.
DC Workers Living in Maryland
Maryland residents working in DC pay MD state and county income taxes on their DC-source income. Maryland provides a credit for taxes paid to DC to avoid double taxation. The net effect: you pay whichever state’s/district’s rate is higher. Since DC’s top rate (10.75%) exceeds Maryland’s combined rate (8.95%), high earners living in MD and working in DC effectively pay DC rates with a credit against their MD liability. The piggyback tax is effectively absorbed into the DC credit for most high earners.
Two-Income Households
If one spouse works in DC and the other works in Maryland, the DC earner’s piggyback tax may be partially offset by the DC tax credit, while the MD earner pays the full piggyback rate. The math gets complex — a tax professional familiar with MD/DC cross-border situations is worth the cost for dual-income households.
Tips to Minimize Impact
- Consider county choice. Worcester County’s 1.75% rate vs Montgomery County’s 3.2% saves $1,450/year on $100K income. But few people choose their county based on the piggyback rate — jobs and schools drive the decision. The rate difference only matters at the margins.
- Maximize deductions. The piggyback tax is based on MD taxable income. Maryland-specific deductions (pension exclusion for retirees, standard deduction, subtractions for military income) reduce your piggyback tax base.
- Factor it into state comparisons. When comparing MD to VA or NJ, include the piggyback tax. It’s a real annual cost that other states don’t have. A $150,000 income in MoCo costs $4,800 in piggyback tax that a Virginia resident doesn’t pay.
- Consider the full package. The piggyback tax is one piece of Maryland’s tax structure. Lower property taxes, the Homestead cap, no exit tax, and strong first-time buyer programs offset it. Over a long ownership period, Maryland’s total cost of homeownership often beats Virginia’s despite the higher income tax.
Use our mortgage calculator for monthly housing costs and the see how much you can buy to see what you can afford after accounting for all taxes.
Compare With Other States
Related Maryland Guides
- Maryland Transfer and Recordation Taxes Explained: What Buyers and Sellers Pay
- Moving to Frederick in 2026: Cost of Living, Housing, and What to Know
- Maryland Seller Disclosure Requirements: What Home Sellers Must Reveal
- Best Roofing Companies in Maryland 2026
- Maryland Property Tax System Explained: What Homebuyers Need to Know
Frequently Asked Questions
Why does Maryland have a county income tax?
Maryland’s county piggyback tax dates to 1967 and was designed to give counties a revenue source independent of property taxes. The goal was to reduce reliance on property taxes — which it has, keeping MD property taxes lower than NJ and comparable to the national average. The trade-off is higher income taxes. Whether the piggyback tax is “better” than high property taxes depends on your income and property value — higher earners pay more under the piggyback system, while higher-value homeowners pay more under a property-tax-heavy system.
Can I deduct the piggyback tax on my federal return?
Yes — it counts as part of your state and local tax (SALT) deduction, capped at $10,000. Since most Maryland residents hit the $10,000 SALT cap with property taxes + state income tax alone, the piggyback tax effectively gets no federal deduction for many homeowners. This makes the piggyback tax a true out-of-pocket cost for middle and upper-income Maryland households.
Does the piggyback tax apply to retirees?
Yes, on taxable retirement income. However, Maryland offers a generous pension exclusion ($39,500 in 2026 for those 65+) that shields a significant portion of retirement income from both state and county taxes. Social Security is also exempt from Maryland income tax. These exclusions reduce the piggyback tax impact for retirees considerably — many retirees pay less than $1,000/year in piggyback tax.
What if I work in DC but live in Maryland?
Maryland residents working in DC pay MD state and county income taxes on their DC-source income. Maryland provides a credit for taxes paid to DC to avoid double taxation. The net effect: you pay whichever state’s/district’s rate is higher. Since DC’s top rate (10.75%) exceeds Maryland’s combined rate (8.95%), high earners living in MD and working in DC effectively pay DC rates with a credit against MD liability. The piggyback tax is largely absorbed by the DC credit in this scenario.
Is the piggyback tax the same as the “county tax”?
In common usage, yes. Technically, the piggyback tax is a county income tax levied as a percentage of Maryland taxable income. It’s called “piggyback” because it’s calculated as a percentage on top of the state return, piggybacking on the state system. You don’t file a separate county return — the piggyback tax is calculated and paid through your Maryland state income tax return automatically.
Will the piggyback rates go up?
They can — county councils set the rates, and some counties have raised them over the past decade. Montgomery County raised its rate to 3.2% in 2012 and has maintained it since. Most counties are at or near their maximum practical rate. Significant increases are unlikely because they’d drive residents to neighboring counties, but small adjustments (0.1-0.2%) happen periodically. Check your county’s current rate before buying, as the rates listed here may change.