Delaware City Property Tax Records

Delaware City property tax records are based on assessments set by New Castle County. The city adopts county assessment values in lieu of conducting its own independent valuations. If you want to look up the assessed value for a Delaware City property, the New Castle County parcel search is where to start. Tax rates are set by the city, but the assessed values they are applied to come entirely from the county system. This page covers how Delaware City taxes are structured, when bills are due, and where to find parcel data.

Delaware City Tax Rate Breakdown

Delaware City property taxes are made up of several separate levies that combine into one total rate. The breakdown based on available rate data is: County tax $0.2529, School tax $1.3260, City tax $1.1400, Vocational tax $0.01886, Other $0.1500, and City Park Tax $0.0500. Combined, these produce a total rate of approximately $2.8878 per $100 of assessed value.

The City Park Tax of $0.0500 is a separate levy added to the standard city rate. It funds parks and recreation within the city. This is a relatively small addition but is still part of the total bill. When you calculate what you owe, use the full combined rate rather than just the city rate, since school and county taxes are all collected as part of the same annual billing cycle.

The effective property tax rate in Delaware City is 0.59%, which is well below the national median of 1.02%. Delaware overall has one of the lowest property tax burdens in the country, and Delaware City falls in line with that pattern. Still, the total bill depends on the actual assessed value of the specific property, so it pays to verify that value through the county's parcel search before estimating what you will owe.

How Delaware City Handles Assessments

Under Section IV of the Delaware City charter, the city formally adopts New Castle County assessment values rather than making independent valuations. The assessment values set by the county are conclusive for purposes of levying city taxes. This means the city has no authority to hear appeals about county assessments. If you think your assessed value is wrong, your appeal goes to New Castle County, not the city.

The city charter also provides for quarterly supplemental assessment lists. These are certified on July 1, October 1, January 1, and April 1. If a property is added to the assessment list in the second quarter, the owner is liable for 75% of the annual tax for that year. Third-quarter additions are liable for 50%, and fourth-quarter additions for 25%. This prorated structure ensures that new construction or newly discovered properties are taxed fairly based on when they first appeared on the rolls.

When it comes to appeals, no Mayor or Council member is allowed to sit on their own appeal. Other Council members hear those cases. This conflict-of-interest rule applies only to the city's limited review process, which does not touch the county's underlying assessed values. Full assessment appeals must still go through New Castle County's Board of Assessment Review process.

Tax Billing and Payment in Delaware City

Delaware City property taxes are due on July 1 each year. Payment must be received by September 30. If the balance is not paid by that date, a penalty of 1.5% per month applies to the outstanding amount. That penalty accumulates each month until the bill is paid in full.

Tax bills reflect the combined rate applied to the New Castle County assessed value. The New Castle County Office of Finance handles county-level collection, while city taxes are managed by the city. The county parcel search at http://www3.nccde.org/parcel/search shows payment status for the county portion of your bill. Contact the city directly for questions about the city portion of taxes due.

Delaware Assessment Law

Property assessments in Delaware City, like all New Castle County parcels, are governed by Delaware Code Title 9, Chapter 83. Section 8301 establishes the fair market value standard for assessments. Section 8338 provides for quarterly supplemental assessments to add unlisted property or correct errors. Section 8341 prohibits retroactive taxation through supplemental lists.

The Delaware City charter at charters.delaware.gov spells out the city's tax provisions in detail. Reading Section IV gives you a full picture of how the city uses county assessments, how supplemental lists work, and how the appeal process is structured at the city level. For state-level tax questions, the Delaware Division of Revenue is the right contact.

Note: Always verify current tax rates with the city before making financial decisions, as rates can change each budget cycle.

Finding Delaware City Property Records

The New Castle County parcel search is the best tool for looking up any Delaware City property. Search by address, parcel number, or owner name. Results include current ownership, assessed value, tax district, and payment status for county taxes. The system is free to use and does not require registration. It is updated regularly so the data reflects current county records.

Delaware City sits along the Delaware River in New Castle County. The city is small but uses the full county assessment system along with larger municipalities like Wilmington and Newark. That means Delaware City property owners benefit from the same reassessment process and have access to the same appeal rights as any other county property owner. If the 2025 Tyler Technologies reassessment resulted in a value you believe is too high, the appeal process through the New Castle County Board of Assessment Review is open to you.

For deed research, the New Castle County Recorder of Deeds at 800 N. French Street, 2nd Floor, Wilmington, maintains computer-searchable records going back to 1945. This office records deeds, mortgages, federal tax liens, and other documents that affect title. If you are buying a Delaware City property, a title search through this office confirms there are no unresolved liens or encumbrances before closing.

Public Access to Delaware City Tax Records

Delaware City property tax records are public documents under Delaware's Freedom of Information Act. Anyone can request assessment records, tax billing data, and parcel information without providing a reason. The county parcel search is the fastest tool for this. You do not need to file a formal FOIA request to access standard property data that is already published online through the county system.

For a more formal records request involving state agency data, the Delaware Department of State FOIA Coordinator accepts written requests at Delaware Public Archives, 121 Martin Luther King Jr. Blvd. N., Dover, DE 19901, or by email at dos.foia@delaware.gov. Phone is (302) 739-4111. Requests must describe the records sought in enough detail to locate them. Most property-level records at the county are accessible without this formal process.

New Castle County's Land Use Services at 87 Reads Way, New Castle, DE 19720, phone (302) 395-5400, handles in-person requests and can assist with assessment questions, exemption applications, and permit searches. Their office provides parcel search access, permit history, and online payment options for county services.

Nearby Cities

These cities in New Castle County also adopt county assessments for local property tax purposes.