Assessment Review Calendar

2018-19 Tax Year for Nassau County

January 2, 2017

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

March 1, 2017

Last day to appeal 2018-19 assessment published on January 2017 tentative roll.

March 2, 2017 to March 31, 2018

ARC reviews appeals and makes determinations.

January 2, 2018

Last day to file an application for a new exemption with the Department of Assessment. Eligibility for exemptions determined as of this date. Department of Assessment publishes adjusted tentative assessments reflecting new construction or expansion of improvements. Value determined as of this date for property affected by new construction, expansion or destruction of improvements, or change in exempt status.

April 2, 2018

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

May 2, 2018

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

October 1, 2018

Town Receiver of Taxes mails school tax bill based on April 2018 assessment.

January 1, 2019

Town or city receiver mails general tax bill based on the April 2018 assessment.

Dates are approximately one year earlier for 2017-18 and one year later for 2019-20.