Delaware property tax rates by county
Delaware · #44 of 52 · 3 counties
Median annual property tax $1,768 · median home value $352,000
Below the U.S. benchmark 0.94%. Payment dates are set locally — see below.
When it's due in Delaware
All statesPayment dates vary by local tax authority.
Check your city, town or county tax collector for this year's deadline. The statewide notes below are a general guide.
| Late penalty | New Castle: 6% penalty on Oct 1 + 1%/month; Kent & Sussex: 1.5% per month (9 Del. C. § 8604) |
|---|---|
| Appeal window | New Castle County: by March 15; Kent County: by April 15; Sussex County: by February 15 (9 Del. C. § 8311) |
county-set; Delaware has 3 counties, all with annual payment due September 30 (delinquent October 1). New Castle adds 6% penalty on Oct 1 plus 1%/month; Kent/Sussex add 1.5%/month. Regular annual schedule; tax year: tax year July 1 - June 30, bills mailed July. Source: 9 Del. C. § 8604, rules checked 2026-09-19. Confirm the amount and deadline on your official tax bill.
Counties, highest rate first
Benchmark = median real estate taxes paid ÷ median home value, ACS 2020–2024 5-year. Counties where the Census reports a range ("less than $200", "$10,000 or more") get no rate.