Delaware Property Appraisers & Tax Directory
Directory of all 3 counties in Delaware. Access local property valuation administrators, parcel search GIS maps, and tax appeal boards.
County Property Tax Calculator
Estimated using County's effective tax rate of 0.58% (Assessment ratio: 100%)
Delaware County Assessors Directory
Select your county to view the local property appraiser office and parcel search portal.
Delaware Property Tax Laws & Rules
Senior School Property Tax Relief credit provides up to $500 reduction against school district property taxes for homeowners 65+.
100% permanent service-connected disabled veterans receive complete exemption from county and school taxes.
March 15 in New Castle and Kent; February 15 in Sussex County.
Appeals are filed before the: County Board of Assessment Review.
Frequently Asked Questions
What is the average property tax rate in Delaware?
The average effective property tax rate in Delaware is approximately 0.58%. Actual tax bills depend on your county, municipality, and local school district levies.
How are properties assessed in Delaware?
Under Delaware law, properties are assessed at a statutory assessment ratio of 100% of fair market value by the local County Department of Land Use / Assessment Division.
When is the deadline to appeal property taxes in Delaware?
In Delaware, property valuation appeals must generally be filed by: March 15 in New Castle and Kent; February 15 in Sussex County. Appeals are heard by the local County Board of Assessment Review.
What homestead exemptions are available in Delaware?
Senior School Property Tax Relief credit provides up to $500 reduction against school district property taxes for homeowners 65+.
State Tax Authority
Agency: Delaware Department of Finance
Visit Official State Tax Agency