Nassau County Assessment Review Dates

School
2016/172017/182018/19
2019/20  2020/21
Town/County201720182019
2020 2021
Tax status dateJan. 2, 2015Jan. 4, 2016Jan. 2, 2017
Jan 2, 2018 Jan 2, 2019
Tentative rollJan. 2, 2015Jan. 4, 2016Jan. 2, 2017
Jan 2, 2018 Jan 2, 2019
Grievances dueMar. 2, 2015Mar. 1, 2016Mar. 1, 2017
Mar. 1, 2018 Mar. 1, 2019
Final rollApr. 1, 2016Apr. 1, 2017Apr. 1, 2018
Apr. 1, 2019 Apr. 1, 2020
Petitions dueApr. 30, 2016Apr. 30, 2017Apr. 30, 2018
Apr. 30. 2019 Apr. 30, 2020
School tax billsOct. 1, 2016Oct. 1, 2017Oct. 1, 2018
Oct. 1, 2019 Oct. 1, 2020
Town tax billsJan. 1, 2017
Jan. 1, 2018
Jan. 1, 2019
Jan. 1, 2020 Jan. 1, 2020