August 11 2025
Due date for the second half of 2025 General Tax payments to the Receiver of Taxes. Payments made after this date will be subject to late fees.
September 1 2025
Homeowners may begin submitting authorization forms for us to handle their 2027/28 property tax grievance.
October 1 2025
The County releases first-half 2025/26 School Tax bills.
November 10 2025
Last day to pay the first-half 2025/26 School Taxes without penalty.
January 1 2026
Nassau County publishes tentative assessments for the 2027/28 tax year.
January 1 2026
The County issues first-half 2026 General Tax bills.
January 2 2026
Filing deadline for Nassau County property tax exemptions (Basic STAR, Enhanced STAR, etc.). Contact the NYS Dept. of Taxation and Finance at 518-457-2036 for details.
January 2 2026
Opening day for filing 2027/28 Nassau County tax grievances.
February 10 2026
Final date to submit first-half 2026 General Tax payments without penalty.
March 31 2026
Filing cutoff for 2027/28 Nassau County property tax grievances.
April 1 2026
Second-half 2025/26 School Tax bills are mailed by the County.
April 30 2026
Final date to submit a Small Claims Assessment Review (SCAR) petition for the 2026/27 tax year in Nassau County.