All Representatives and Attorneys filing on any property as a representative, where you are not the owner, must register and obtain a representative number from ARC. Please email arcoperations@nassaucountyny.gov for further information.
ARC Representative Due Dates
DATE
ITEM DUE
February 10, 2025
Deadline for residential and commercial request for status change, withdrawals of applications 2025/26 and processing any Consents to Change for tax year 2025/26
March 3, 2025
Last day to Process AR70's for implementation for the Final 2025/26 Roll
March 3, 2025 April1, 2025
After March 15, 2025
Last day to file 2026/2027 Grievances Deadline extended for 2026/2027 Tax Year
Withdrawals for 2026/27
Forms For Attorneys and Other Representative Adobe Acrobat format (PDF)