Sussex County Property Tax · 2026

Sussex County Property Tax Guide

Effective rates, the senior school property tax credit, homestead exemption, and real dollar comparisons across every price tier in the coastal Delaware 55+ market. The numbers every buyer needs before making an offer.

Sussex County Property Tax Rates

Sussex County, Delaware has one of the lowest effective property tax rates of any coastal county on the East Coast. The effective rate — the percentage of actual market value paid in annual property taxes — runs approximately 0.43–0.56% for most residential properties in the county. This range reflects the combination of county, school district, and municipal taxes where applicable, and the relationship between assessed value and market value.

How Delaware property tax assessment worksDelaware properties are assessed at a fraction of market value — the assessment ratio has historically been below 100% of market value in Sussex County. What matters for budgeting is the effective tax rate as a percentage of the home’s actual purchase price or current market value. The table below uses effective rates (tax paid / market value) for real-world budgeting, not the statutory rates applied to assessed value.
Home ValueAnnual Tax (0.43% rate)Annual Tax (0.56% rate)Monthly Cost
$350,000$1,505$1,960$125–$163
$450,000$1,935$2,520$161–$210
$500,000$2,150$2,800$179–$233
$600,000$2,580$3,360$215–$280
$750,000$3,225$4,200$269–$350
$950,000$4,085$5,320$340–$443

These are estimates based on effective rate ranges. Confirm the actual assessed value and tax bill with the Sussex County Assessment Office before any purchase. Property assessments and millage rates change periodically.

The Senior School Property Tax Credit

Delaware homeowners who are 65 or older and have lived in their primary residence for at least ten consecutive years qualify for a credit of up to $400 per year against the school portion of their property tax bill. For most Sussex County buyers, the school tax represents roughly 60–65% of the total property tax bill, and the $400 credit reduces the effective rate modestly but meaningfully — about 15–20% of the total annual property tax for a home in the $350K–$500K range.

How to Apply

The credit is not automatic. It must be applied for with the county and is subject to annual renewal. For buyers who purchase now and plan to remain for ten years, this credit becomes available at year ten — a useful future planning fact. For buyers who are already 65+ and moving from another Delaware home where they have met the residency requirement, consult with a Delaware real estate attorney about whether the credit is transferable.

The ten-year residency requirement is the catch most buyers missThis credit rewards long-term Delaware residents. Buyers who move to coastal Delaware from Pennsylvania, New Jersey, or Maryland at age 65 will not qualify for the first ten years. Budget accordingly — the credit is a future benefit, not a day-one benefit for most new Delaware purchasers.

Sussex County vs The States Buyers Are Leaving

Sussex County, Delaware

Effective rate0.43–0.56%
$450K home/year$1,935–$2,520
$600K home/year$2,580–$3,360
$750K home/year$3,225–$4,200
Senior credit (65+, 10yr)Up to $400/yr

Chester County, Pennsylvania

Effective rate1.30–1.60%
$450K home/year$5,850–$7,200
$600K home/year$7,800–$9,600
$750K home/year$9,750–$12,000
Sussex DE savings ($600K)$4,440–$6,240/yr

Burlington County, New Jersey

Effective rate1.80–2.30%
$450K home/year$8,100–$10,350
$600K home/year$10,800–$13,800
$750K home/year$13,500–$17,250
Sussex DE savings ($600K)$7,440–$10,440/yr

Montgomery County, Maryland

Effective rate0.90–1.10%
$450K home/year$4,050–$4,950
$600K home/year$5,400–$6,600
$750K home/year$6,750–$8,250
Sussex DE savings ($600K)$2,040–$3,240/yr
At $600K home value, Delaware saves $2,000–$10,000 per year in property tax aloneThe savings against New Jersey are extreme because NJ has among the highest property tax rates in the nation. The savings against Maryland are more modest but still meaningful. Against Pennsylvania, Delaware saves $4,000–$6,000 per year at the $600K price tier — which covers the HOA fee at Four Seasons at The Estuary or Del Webb Millsboro almost entirely.

Related Pages

Delaware Income Tax GuideSocial Security, pension exclusion, bracket mathEstuary Cost BreakdownProperty tax applied to a real purchase scenarioBayside Cost BreakdownHigher-price-tier scenario with same tax ratesCoastal Delaware HubAll communities and research guides

Want Your Property Tax Comparison Built?

Tell us your home value and current county — we’ll build the actual property tax comparison for your specific move before you tour a single community.

Talk to a Delaware Specialist