Kent County Property Tax Appeal, Delaware

Travis BunnTravis Bunn·Updated July 24, 2026

Kent County is located in central Delaware with Dover as its county seat and state capital. As of the 2020 census, the county has a population of approximately 181,851 residents, making it the least populous of Delaware's three counties. Major population centers include Dover (population over 40,000), Smyrna (around 12,000), and smaller towns like Harrington, Camden, and Clayton. Kent County homeowners enjoy relatively low property tax burdens compared to both state and national averages, with a median annual tax bill of $1,331 on a median home value of $290,600, resulting in an effective tax rate of 0.46% - significantly below the national average of 0.91% and even lower than Delaware's state average of 0.53%.

Notable cities: Dover, Smyrna, Harrington, Camden, Clayton

Median Home

$290,600

Tax Rate

0.46%

Annual Tax

$1,331

Population

181,851

On the typical Kent County home, valued near $290,600 at the county’s effective tax rate of 0.46%, an over-assessment of even 10% means you are overpaying year after year until you appeal it. Here is how to find out if yours qualifies.

2026 Appeal Deadline: Varies by county - typically March for Kent County, contact Assessment Office for specific deadline

Kent County appeal deadlines vary and are not fixed annually. Property owners should contact the Kent County Board of Assessment Review or check their assessment notice for the specific appeal deadline applicable to their property. Delaware has strict filing deadlines with no extensions, so early filing is recommended.

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How Kent County Assesses Property

100%of market value

Assessed by: Kent County Assessment Office

Assessment cycle: periodic reassessment

Notices typically mailed: varies by reassessment cycle

Kent County assesses property at 100% of fair market value as determined by the Kent County Assessment Office. Delaware recently updated assessment practices requiring 100% assessment ratio across all counties. For example, if your home's market value is $290,600, at Delaware's 100% assessment ratio your assessed value would be $290,600, resulting in approximately $1,337 in annual taxes at the county's effective rate of 0.46%.

The Appeal Process

Appeals are heard by the Board of Assessment Review. The Board of Assessment Review consists of seven Kent County residents appointed by commissioners who serve as impartial judges. They hear disputes presented by appellants and decide based on evidence, with decisions subject to Superior Court appeal within 30 days.

1

Step 1: Review your property assessment notice from Kent County Assessment Office and verify all property details including square footage, lot size, bedroom count, year built, and property condition for accuracy.

2

Step 2: Research comparable sales in your area from recent months showing properties similar to yours that sold for less than your assessed value. For residential appeals, comparable sales are required evidence.

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Step 3: Gather supporting evidence including comparable sales data, photographs of your property showing condition issues, repair estimates, appraisals, and any documentation that supports a lower valuation.

4

Step 4: File your appeal with the Kent County Assessment Office by the applicable deadline. Submit your appeal form and supporting documentation online at https://www.co.kent.de.us/assessment.aspx, by mail, or in person at 555 Bay Road, Dover, DE 19901.

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Step 5: The assessor will review your appeal and supporting documents. If you and the assessor agree on a value, you'll sign a stipulation form that goes to the Board of Assessment Review for approval.

6

Step 6: If no agreement is reached with the assessor, your appeal advances to a formal hearing before the Kent County Board of Assessment Review, a seven-member panel that acts as an impartial judge between you and the Assessment Office.

7

Step 7: Attend your hearing before the Board of Assessment Review, present your evidence clearly, and be prepared to answer questions about your comparable sales and property condition. The Board will issue a written decision.

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Step 8: If you disagree with the Board's decision, you have 30 days from notification to file an appeal with the Superior Court of Kent County to pursue your appeal further.

Required form: Kent County appeal form available from Assessment Office or online

Filing Methods

mail:Kent County Assessment Office, 555 Bay Road, Dover, DE 19901
in-person:Kent County Assessment Office, 555 Bay Road, Dover, DE 19901 (Office Hours: 8:00am-5:00pm Mon-Fri)

Evidence to Bring

Comparable sales of similar properties (required for residential appeals)Photographs showing property conditionRepair estimates for major defectsProfessional appraisal reportsProperty inspection reports documenting issues

Kent County Assessor Contact

Kent County Assessment Office

Website: https://www.co.kent.de.us/assessment.aspx

Online Portal: https://www.co.kent.de.us/assessment.aspx

Hours: 8:00am-5:00pm Monday-Friday

Tax Exemptions in Kent County

Senior Citizen and Disabled Property Owner Exemption

$100,000 of assessed value exempted (additional $20,000 for service-connected disabled veterans)

Exemption from all real property taxes on a portion of assessed value for qualifying disabled or senior homeowners

Eligibility: Must be 65 years or older by May 31 of the tax year, OR totally disabled as defined by Social Security. Must have lived on property for at least one year and in Delaware for at least five years. Income limits apply: $18,000 for single persons, $24,750 for married couples (excluding Social Security income).Deadline: April 30 prior to the tax year for which exemption is sought

Senior School Property Tax Credit (State of Delaware)

50% credit up to $400-$500 on school taxes

State-administered credit against school property taxes for senior citizens

Eligibility: Must be 65 years or older and have lived in Delaware for 10 years. Must pay property tax bill in full by end of tax year to qualify for credit in subsequent year.Deadline: Contact Kent County Tax Office at 302-744-2341 for application and deadline

Disabled Veterans School Tax Credit

Varies based on disability rating

State of Delaware tax credit for disabled veterans

Eligibility: Must be a disabled veteran with service-connected disabilityDeadline: Contact Assessment Office at 302-744-2401 for application details

Agricultural Use Tax Exemption

Exemption applies to agricultural land (but not improvements)

Tax exemption for qualifying agricultural land when certain requirements are met

Eligibility: Must meet Delaware Department of Agriculture requirements for agricultural useDeadline: Contact Assessment Office at 302-744-2401 - applications cannot be downloaded

Kent County Appeal Statistics

Avg Reduction

$465

Kent County Appeal Packet · $49

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Frequently Asked Questions

What is the deadline to appeal my property taxes in Kent County?
Kent County property tax appeal deadlines vary and are not fixed to a specific date each year, unlike some other Delaware counties. Property owners should check their assessment notice for the specific appeal deadline or contact the Kent County Assessment Office at 302-744-2401 to confirm the current filing deadline. Delaware has strict filing deadlines with no extensions, so it's critical to file promptly once you receive your assessment notice. Missing the deadline means waiting another full year and paying higher taxes during that period.
How do I file a property tax appeal in Kent County online?
You can file your Kent County property tax appeal online by visiting the official Assessment Office website at https://www.co.kent.de.us/assessment.aspx. The website provides access to appeal forms and property records. You can also file by mailing your completed appeal form and supporting documentation to Kent County Assessment Office, 555 Bay Road, Dover, DE 19901, or by submitting in person during office hours (8:00am-5:00pm Monday-Friday). Make sure to include all required evidence such as comparable sales data, photographs, and any repair estimates that support your claim for a lower assessed value.
What is the Senior Citizen exemption worth in Kent County?
Kent County offers a Senior Citizen and Disabled Property Owner Exemption that exempts the first $100,000 of assessed value from all real property taxes for qualifying homeowners. To qualify, you must be 65 years or older by May 31 of the tax year, have lived on the property for at least one year, and resided in Delaware for at least five years. Income limits apply: $18,000 for single persons and $24,750 for married couples (excluding Social Security income). If you're a totally disabled veteran who incurred disability while serving in the U.S. armed services, you receive an additional $20,000 exemption. Applications must be filed by April 30 prior to the tax year.
What happens at a Board of Assessment Review hearing in Kent County?
At a Kent County Board of Assessment Review hearing, you'll present your appeal case before a seven-member panel of Kent County residents who serve as impartial judges between you and the Assessment Office. The hearing allows you to present your evidence, including comparable sales, photographs, and repair estimates supporting your claim for a lower assessed value. The assessor will also present their position and both parties may be questioned by Board members. The Board evaluates all evidence presented and issues a written decision based on the facts. If you disagree with the Board's decision, you have 30 days from notification to appeal to the Superior Court of Kent County.
How much can I save by appealing my property taxes in Kent County?
Successful property tax appeals in Kent County save homeowners an average of $465 per year according to recent data. A typical successful appeal reduces the assessed value by 10-20%. For example, on Kent County's median home value of $290,600, a 15% reduction in assessed value would lower it by approximately $43,590, saving about $200 annually at the 0.46% effective tax rate. Over 10 years, these savings compound to $2,000-$4,650. The actual savings depend on your property's overassessment and the strength of your comparable sales evidence. Remember, in Delaware your assessed value cannot increase as a result of filing an appeal.
What evidence do I need for a Kent County property tax appeal?
For a successful Kent County property tax appeal, you must provide comparable sales of similar properties that sold for less than your assessed value - this is required for residential appeals. Your comparable sales should be from recent months (typically within the past 6-12 months) and include properties similar in size, age, location, and condition to yours. Additional strong evidence includes photographs documenting your property's condition, repair estimates for major defects like roof damage or foundation issues, professional appraisal reports, and documentation of property features that negatively impact value. The Kent County Board of Assessment Review responds to objective, data-driven evidence, so focus on facts rather than opinions about fairness.
When are property tax bills due in Kent County?
Kent County property tax bills are typically mailed in early August after school districts finalize their tax rates. The full annual property tax payment is due by September 30 each year to the Kent County Tax Office. The tax year for Kent County runs from June 1 of the current year to May 31 of the following year. Under certain circumstances, you may be eligible to pay your taxes in installments - contact the Tax Office at 302-744-2341 for details. Late payments incur penalties and interest charges, so it's important to pay on time to avoid additional fees.
How does Kent County's property tax rate compare to other Delaware counties?
Kent County has the second-lowest property tax burden among Delaware's three counties, with an effective tax rate of 0.46% and a median annual tax bill of $1,331 on a median home value of $290,600. This is significantly lower than New Castle County, which collects an average of $1,385 annually at a 0.55% rate, and Sussex County, which has the lowest rate at 0.27% with an average bill of $662. Kent County's effective rate is 0.07% lower than Delaware's state average of 0.53% and dramatically below the national average of 0.91%, making it one of the more affordable counties for property taxes in the United States.

Official Resources

For state-wide appeal information including Delaware's assessment ratio and deadlines, see our Delaware Property Tax Appeal Guide →

Considering professional help with your appeal? Compare pricing, coverage, and pros/cons in our Best Property Tax Appeal Services (2026) or browse side-by-side service comparisons →

More Delaware Counties

Sources: https://propertytaxrates.org/counties/delaware/kent-county/ | https://www.co.kent.de.us/assessment.aspx | https://www.kentcountyde.gov/files/sharedassets/public/v/1/content-publishers/assessment/assesment-pdf/appeal-procedures-revised-april-2025.pdf | https://honestcasa.com/taxes/delaware/kent-property-tax-guide | https://ecode360.com/27065853

Last verified: 2026-07-24