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Assessment Review Commission
Assessment Review Calendar
Assessment Review Calendar
2024-2025 Tax Year for Nassau County
January 2, 2023
Department of Assessment publishes tentative assessment roll based on value as of this date.
March 1, 2023
Last day to appeal 2024/25 assessment.
March 2, 2023 to March 31, 2024
ARC reviews appeals and makes determinations.
April 1, 2024
Department of Assessment publishes final 2024/2025 assessment roll reflecting changes made by ARC and exemption changes.
April 30, 2024
Last day to file for judicial review of assessments, including Small Claims Assessment Review.
October 1, 2024
Town Receiver of Taxes mails school tax bill based on April 2024 assessment.
January 1, 2025
Town or city receiver mails general tax bill based on the April 2024 assessment.
2025-2026 Tax Year for Nassau County
January 2, 2024
Department of Assessment publishes tentative assessment roll based on value as of this date.
March 1, 2024
Last day to appeal 2025/26 assessment.
March 4, 2024 to March 31, 2025
ARC reviews appeals and makes determinations.
April 1, 2025
Department of Assessment publishes final 2025/26 assessment roll reflecting changes made by ARC and exemption changes.
April 30, 2025
Last day to file for judicial review of assessments, including Small Claims Assessment Review.
October 1, 2025
Town Receiver of Taxes mails school tax bill based on April 2025 assessment.
January 1, 2026
Town or city receiver mails general tax bill based on the April 2025 assessment.
Assessment Review Home
How to Appeal Your Assessment
AROW
Assessment Review Calendar
Frequently Asked Questions
File an Application for Correction
Forms & Instructions
Contact ARC
Assessment Review Commission Board Meetings
Representative Page
Laws & Rules
Assessment Review Commission Rules Of Commission
Nassau County Assessment Review Dates
Links
FOIL Requests
ARC Calculator
ARC Community Grievance Workshops
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