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New Castle Today
By the People, for the People
Delaware Lawmakers Advance Bills to Address Property Tax Reassessment Issues
Legislation aims to correct errors, improve oversight, and ease financial impact of first statewide property tax reassessment in over 40 years.
Published on Jan. 30, 2026
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Delaware lawmakers are advancing a new round of legislation to address issues that have emerged following the state's first statewide property tax reassessment in more than four decades. The reassessment, completed in 2025, updated property values that in many cases had not been adjusted since the 1980s, sparking confusion, appeals, and sharp increases in some tax bills - particularly in New Castle County. The proposed bills are designed to correct errors, improve oversight, and provide short-term relief for homeowners and businesses facing significant tax hikes.
Why it matters
The property tax reassessment has been a major source of public concern in Delaware, with homeowners and businesses reporting significant increases in their tax bills. The new legislation is an attempt by lawmakers to address these issues and restore public confidence in the state's property tax system, which had not been updated in over 40 years.
The details
The proposed bills include measures to grant New Castle County temporary authority to conduct targeted quality-control reviews of certain property assessments, require businesses to provide financial information if a county uses income-based valuation methods, and mandate payment plans and protections for homeowners whose tax bills increased significantly. Earlier bills passed in 2025 also addressed issues such as refunds, payment flexibility, and school tax rate adjustments.
- The reassessment was completed in 2025.
- The 2026 legislative session is when the new round of bills are being advanced.
- Appeals for 2026 assessments in New Castle County must be filed by March 14, 2026.
The players
Delaware General Assembly
The state legislature of Delaware, which is advancing the new round of legislation to address issues stemming from the property tax reassessment.
New Castle County
The most populous county in Delaware, where many homeowners and businesses have faced significant increases in property tax bills following the reassessment.
Tyler Technologies
The company that conducted the statewide property tax reassessment in Delaware, which has been criticized for a lack of transparency in the process.
What’s next
The proposed bills are currently moving through the Delaware General Assembly, with several key measures expected to advance quickly. Homeowners in New Castle County have until March 14, 2026 to file appeals for their 2026 property tax assessments.
The takeaway
The property tax reassessment in Delaware has exposed weaknesses in a system that had not been updated in over 40 years, leading to confusion, appeals, and significant tax increases for many homeowners and businesses. The new legislation aims to address these issues, but restoring public confidence in the state's property tax system remains an ongoing challenge.
