Calvert County, MD property tax rate
Calvert County · Maryland · #18 of 24 in the state
Median annual property tax $3,885 · median home value $460,200
$3,885 a year · $324 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.
Below the U.S. benchmark 0.94% (0.9×), below 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 | $3,885 |
|---|---|
| With a mortgage / without | $3,869 / $3,932 |
| Median home value | $460,200 |
| Median household income | $133,922 · tax is 2.9% of it |
| Median gross rent | $1,759 / mo |
| Owner-occupied | 87% of 33,465 homes |
| Population | 94,313 |
When it's due in Maryland
All states| First half | Due Sep 30 Late after 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 after 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 Calvert County ($3,885) divided by the median value of those homes ($460,200), 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