Baltimore County, MD property tax rate
Baltimore County · Maryland · #4 of 24 in the state
Median annual property tax $3,736 · median home value $349,300
$3,736 a year · $311 a month using the area benchmark. Enter a value such as 350,000 or 350,000.00.
A rough planning estimate, not a tax quote.
Above the U.S. benchmark 0.94% (1.14×), above the Maryland benchmark 0.97%.
Ranked among 24 Maryland counties with available benchmarks.
What this benchmark means
Median real estate taxes paid ÷ median owner-occupied home value, ACS 2020–2024 — a ratio of two medians, not a statutory rate, not the median of individual bills and not your property's rate. Exemptions people already claim are reflected in the survey; your bill depends on taxable value, local districts, exemptions and reassessment after a sale.
Census figures behind this page
| Median real estate taxes paid | $3,736 |
|---|---|
| With a mortgage / without | $3,762 / $3,685 |
| Median home value | $349,300 |
| Median household income | $91,768 · tax is 4.1% of it |
| Median gross rent | $1,627 / mo |
| Owner-occupied | 66% of 332,801 homes |
| Population | 850,796 |
Where to pay and look up your property tax
| Pay or look up your bill | Office of Budget and Finance (Taxpayer Services) |
|---|---|
| Assessed value | Maryland SDAT (state assessment office) |
Links go to official government offices or the payment portals they link to (checked 2026-09-24). CountyTax is not a government site and does not handle bills or payments.
When it's due in Maryland
All states| First half | Due Sep 30 Late from Oct 1 under state law — the exact cutoff time, weekend/holiday carry-over and this year's date are on your bill. |
|---|---|
| Second half | Due Dec 31 Late from Jan 1 under state law — the exact cutoff time, weekend/holiday carry-over and this year's date are on your bill. |
| Late penalty | county-set interest and penalty, typically 1% to 1.5% per month interest plus up to 1% per month penalty (Md. Code, Tax-Prop. § 14-603, § 14-702) |
| Early-payment discount | counties may allow early payment discount (e.g. 0.5% in July) under Md. Code, Tax-Prop. § 10-205 |
| Appeal window | within 45 days of the date of notice of assessment to supervisor of assessments (Md. Code, Tax-Prop. § 14-502) |
Principal residences are automatically semi-annual: 1st half due Sept 30 (delinquent Oct 1), 2nd half due Dec 31 (delinquent Jan 1). Non-owner occupied properties due in full Sept 30. Regular annual schedule; tax year: fiscal year July 1 - June 30, bills mailed July 1. Source: Md. Code, Tax-Prop. § 10-102, § 10-204.3, rules checked 2026-09-19. Confirm the amount and deadline on your official tax bill.
Maryland counties with a similar rate
All 24How this benchmark was computed
Median real estate taxes paid by owner-occupied households in Baltimore County ($3,736) divided by the median value of those homes ($349,300), both from the Census Bureau's American Community Survey 2020–2024 5-year estimates. It is a ratio of two medians — a reasonable area benchmark, not the assessor's mill rate and not any one household's rate. Newly purchased homes are often reassessed to sale price, so a buyer's first bill can run above it. Data & method