Assessment Review Calendar

ARC 2022/23 application grace period Applications received by the Assessment Review Commission  up through April 30, 2021 shall be deemed timely. The Commission recommends that to the extent possible property owners that plan to file do so as soon as possible.

2021-2022 Tax Year for Nassau County

January 2, 2020

Department of Assessment publishes tentative assessment roll based on value as of this date. 

March 2, 2020

Last day to appeal 2021-22 assessment published on January 2019 tentative roll.


March 3, 2020 to March 31, 2021

ARC reviews appeals and makes determinations.

April 1, 2021

Department of Assessment publishes final assessment roll reflecting changes made by ARC and exemption changes.

April 30, 2021

Last day to file for judicial review of assessments, including Small Claims Assessment Review.

October 1, 2021

Town Receiver of Taxes mails school tax bill based on April 2021 assessment. 

January 1, 2022

Town or city receiver mails general tax bill based on the April 2021 assessment.

Dates are approximately one year earlier for 2020-21 and one year later for 2022-23.


2022-2023 Tax Year for Nassau County

January 4, 2021Department of Assessment publishes tentative assessment roll based on value as of this date.
March 1, 2021Last day to appeal 2022-23 assessment.
March 1, 2021 to March 31, 2022ARC reviews appeals and makes determinations.
April 1, 2022Department of Assessment publishes final 2022/2023 assessment roll reflecting changes made by ARC and exemption changes.
May 2, 2022Last day to file for judicial review of assessments, including Small Claims Assessment Review.
October 1, 2022Town Receiver of Taxes mails school tax bill based on April 2022 assessment.
January 1, 2023Town or city receiver mails general tax bill based on the April 2022 assessment.
Dates are approximately one year earlier for 2021-22 and one year later for 2023-24.