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Delaware
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Office Hours:

Monday - Friday (8:30AM - 4:30PM)


Office Phone: 
(302) 736-7022


Office Fax: 
(302) 736-4450

Contact: 

Annette Hart

ahart[at sign]dover.de.us*

*Replace [at sign] with @


Mailing Address: 
5 E. Reed St.
P.O. Box 475
Dover, DE 19903-0475


Who We Are 
The Tax Office is comprised of a Director, Contractor, and the Administrative Assistant, who are here to ensure that all properties are treated fairly and impartially in accordance with our State Laws and City Charter Ordinances. It is our desire to help and support you in effective, responsible and courteous manner.

The Tax Office does not establish the dollar amount of taxes required.

The City of Dover Tax Office welcomes your inquiries and concerns on how your property is assessed. We are committed to serve and assist you on any matters dealing with this office. Please contact the City of Dover Tax Office for more information. Our number is (302) 736-7022.


Mission Statement 
We, the employees of the City of Dover Tax Office, have a primary mission to maintain the property assessment system in a way that is equitable, fair and uniform to all citizens of the City of Dover and at the same time meet all constitutional and statutory requirements. We will strive to provide an optimal level of service, information and policy guidance to the public and to other governmental agencies.

Tax Office FAQ


Link for Property Tax Look Up


NOTICE TO

PROPERTY OWNERS IN THE CITY OF DOVER, DELAWARE

CITY OF DOVER ASSESSOR’S OFFICE

Notice is hereby given that on April 1, 2026, an assessment list for the City of Dover will be displayed in three (3) locations for public inspection.

1.    Dover Public Library, 35 Loockerman Plaza

2.    Dover City Hall, City Clerk’s Office, 15 Loockerman Plaza

3.    City Assessor’s Office, 5 E Reed Street

The assessment register will also be available on the City of Dover Website (www.cityofdover.com).

The Board of Assessment Appeals will hear formal assessment appeals. Appeals will be heard by appointment only. Formal Appeals will be scheduled after an Appeal Form and supporting documentation, if required, has been filled out by the Property Owner. Forms for appeals will be available at all three locations with the Assessment Lists. Forms are also available on the City of Dover Website (www.cityofdover.com). Instructions for the appeal process will be included with the form.

Filing deadline for Formal Property Assessment Appeals

April 30, 2026

All forms must be returned to the Assessor’s Office by 5:00 PM on April 30, 2026. Postmark will not be accepted. Exceptions cannot be made. Upon receipt of your appeal form and supporting documentation, if required, you will be contacted to schedule an appeal hearing.

Dates and times for the 2026 Board of Assessment Appeal hearings:

June 1 – June 5, 2026 from 9:00 A.M. until 4:00 P.M. (if needed)

One evening (if needed)

*The hearing times are subject to change.



PLEASE NOTE - DEADLINE IS 5PM  APRIL 30, 2026