Property Taxes in Delaware: Rates, Exemptions, and How They Work (2026)
TL;DR
Delaware has relatively low property taxes with an average effective rate of about 0.53%. The state has not done a statewide reassessment in decades, so assessed values in most areas are far below current market values. This means tax rates are high on paper but applied to very low assessed values. The Senior School Property Tax Credit helps homeowners 65+ with school taxes. There is no state property tax. County and school district rates apply. Appeal to the county Board of Assessment.
The Reassessment Issue
Delaware's three counties (New Castle, Kent, Sussex) have not conducted comprehensive reassessments in decades. New Castle County's assessments date to 1983. This means assessed values bear little relationship to current market values. Courts have ordered reassessments in some cases, but the process is slow.
Tax Rates
Because assessed values are so outdated and low, Delaware's stated tax rates appear high. But when applied to the low assessed values, the effective tax on market value is quite low.
Exemptions
| Program | Benefit | Who Qualifies |
|---|---|---|
| Senior School Property Tax Credit | 50% credit on school taxes (up to $500) | 65+, owner-occupied 3+ years |
| Disabled Veterans | Full exemption | 100% disabled veterans or surviving spouse |
| Homestead Exemption (New Castle Co.) | Varies | Owner-occupied |
Appeal
- County Board of Assessment: File during the appeal period (varies by county)
- Superior Court: Appeal within 30 days
Check your Delaware assessment with our free property tax analyzer.
Frequently Asked Questions
What should I know about property taxes in delaware: rates, exemptions, and how they work (2026)?
Delaware has relatively low property taxes with an average effective rate of about 0.53%. The state has not done a statewide reassessment in decades, so assessed values in most areas are far below current market values. This means tax rates are high on paper but applied to very low assessed values.
What should I know about the reassessment issue?
Delaware's three counties (New Castle, Kent, Sussex) have not conducted comprehensive reassessments in decades. New Castle County's assessments date to 1983. This means assessed values bear little relationship to current market values.
What should I know about tax rates?
Because assessed values are so outdated and low, Delaware's stated tax rates appear high. But when applied to the low assessed values, the effective tax on market value is quite low.
What should I know about appeal?
Check your Delaware assessment with our free property tax analyzer.