Have Questions About Your Tax Bill? Share Your Concerns with Us.

We understand that you may have questions or concerns about your tax bill and how it was affected by recent property reassessments.  To help us assist you more effectively, please complete the form below.

The form requests details about your new and old property values, as well as your new and old tax bills. If you don’t have this information on hand, you can find it by visiting the New Castle County Parcel Search. 

Your feedback will allow us to address your inquiries and provide the support you need.

New Castle County Information

If you have questions or need additional information, contact the New Castle County Treasury customer service at 302-395-5340 or via email - treasury@newcastlede.gov.

You can also check out frequently asked questions: https://www.newcastlede.gov/2519/Property-Tax-Frequently-Asked-Questions