New Castle County · Delaware (DE)
How to Appeal Your Property Tax Assessment in New Castle County
File an appeal with the County Board of Assessment within 30 days of receiving your assessment notice.
Filing Deadline
30 days from notice
Appeals Body
New Castle Board of Assessment Review
Generate Your New Castle County Appeal Letter
Answer 3 questions, pick comparable properties, download your New Castle Board of Assessment Review-ready letter. Only pay when you are happy with the result.
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Filing Steps for New Castle County
1. Gather comps
Find 3-5 comparable properties in New Castle County assessed lower per square foot than yours. Use the county assessor's public records or property sites.
2. File your protest
Submit your protest to the New Castle Board of Assessment Review by 30 days from notice. Include your evidence and this letter.
3. Attend your hearing
Present your case. Most hearings take 10-15 minutes. Many are resolved informally before the formal hearing date.
Other Counties in Delaware
Deadlines and procedures change. Always verify with the New Castle Board of Assessment Review before filing. This is not legal advice.