Quarterly Estimated Tax Calculator — Maryland (2026)
If you earn income in Maryland without withholding — freelancing, contracting, rentals, dividends — the IRS expects payment four times a year, not once. This calculator turns your expected 2026 net profit into a per-quarter number covering self-employment tax, federal income tax and Maryland state tax. Maryland uses a progressive income tax with 8 brackets running from 2.00% up to 5.75%, applied after a state standard deduction of $2,550.
Maryland Quarterly Tax Calculator
Gross 1099 income minus business expenses.
2026 due dates and safe harbor
Federal estimated payments are due April 15, June 15, September 15 of 2026 and January 15 of 2027. You avoid penalties by paying either 90% of the current year's liability or 100% of last year's (110% if prior-year AGI exceeded $150,000) — the safe-harbor rule.
Maryland runs its own estimated-payment schedule that usually mirrors the federal dates. On $90,000 of net profit the Maryland portion alone is about $950 per quarter.
Underpayment penalties
The IRS charges interest-style penalties per quarter you fall short, currently around 7–8% annualized. Paying late in the year does not fix an early-quarter shortfall unless you use the annualized income method on Form 2210.
Irregular income is common in biotech work around Baltimore: if Q1 is slow and Q4 is huge, the annualized method usually beats four equal payments.
Paying as a Maryland taxpayer
Pay federally through IRS Direct Pay or EFTPS, and Maryland through the state revenue department's online portal — keep confirmation numbers for both.
Every Maryland county (and Baltimore City) charges an additional county income tax of 2.25%–3.20%. Baltimore City: 3.20%. This estimate excludes local tax.
Local and payroll taxes Maryland adds on top
County income tax of 2.25%–3.20% is withheld on top of the state rate depending on where you live. That deduction sits outside the federal and state income tax lines, so build it into your own budget on top of the numbers above.
Every Maryland county (and Baltimore City) charges an additional county income tax of 2.25%–3.20%. Baltimore City: 3.20%. This estimate excludes local tax.
Nobody withholds these for you when you are self-employed in Maryland. Local wage taxes, city business licences and gross-receipts style levies are yours to register for and remit alongside your quarterly federal and state estimates.
Working across a state line from Maryland
Maryland holds income-tax reciprocity agreements with District of Columbia, Pennsylvania, Virginia and West Virginia. If you commute between them, your wages are taxed only by your state of residence — file the exemption certificate with your employer so the wrong state is not withheld from every paycheck.
Remote and hybrid work complicates this further: most states tax income where the work is physically performed, so a Baltimore resident spending part of the year at a client site in Virginia may owe a nonresident return there. Keep a day-count log if you split time between states.
The rest of your Maryland tax bill
Maryland charges a 6% state sales tax, homeowners pay an average effective property tax of 1.05% of market value, and the minimum wage in force during 2026 is $15.00 an hour.
6% statewide with no local sales tax — the counties tax income instead.
Income tax is only one part of a state's take. Maryland recovers revenue through sales and property tax as well, which is why headline income tax rates alone are a poor guide to how far a salary really goes. Maryland exempts Social Security and offers a pension exclusion above $36,000 for filers 65+.
Maryland vs Virginia on the same salary
On a $90,000 salary, a single filer keeps about $68,044 a year in Maryland against roughly $67,716 in Virginia — a difference of $327, or $27 a month.
Effective combined rates are 24.4% in Maryland and 24.8% in Virginia. Set that gap against living costs: index 115 here versus 102 there, with property tax at 1.05% and 0.87% respectively.
Maryland income tax brackets 2026 (single filer)
| Taxable income | Rate |
|---|---|
| $0 – $1,000 | 2.00% |
| $1,000 – $2,000 | 3.00% |
| $2,000 – $3,000 | 4.00% |
| $3,000 – $100,000 | 4.75% |
| $100,000 – $125,000 | 5.00% |
| $125,000 – $150,000 | 5.25% |
| $150,000 – $250,000 | 5.50% |
| $250,000 and up | 5.75% |