Nassau County Assessment Review Dates

School

2020/21

2021/22

2022/23

2023/24

2024/25

Town/County

2021

2022

2023

2024

2025

Tax status date

Jan. 2, 2019

Jan. 2, 2020

Jan. 4, 2021

Jan. 3, 2022

Jan. 2, 2023

Tentative roll

Jan. 2, 2019

Jan. 2, 2020

Jan. 4, 2021

Jan. 3, 2022

Jan. 2, 2023

Grievances due

Mar. 1, 2019

Mar. 2, 2020

Mar. 1, 2021

Mar. 1, 2022

Mar. 1, 2023

Final roll

Apr. 1, 2020

Apr. 1, 2021

Apr. 1, 2022

Apr. 3, 2023

Apr. 1, 2024

Petitions due

Apr. 30, 2020

Apr. 30, 2021

May 2, 2022

May 2, 2023

Apr. 30, 2024

School tax bills

Oct. 2020

Nov. 2021

Oct. 2022

Oct. 2023

Oct. 2024

Town tax bills

Jan. 2021

Jan. 2022

Jan. 2023

Jan. 2024

Jan. 2025