Representative Page
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 | |
|---|---|---|
| Deadline for residential and commercial request for status change, withdrawals of applications 2027/28 and processing any Consents to Change for tax year 2027/28 | |
| March 1, 2027 | Last day to Process AR70 (COAR) for implementation for the Final 2027/28 Roll | |
| March 1, 2027 | Last day to file 2028/29 Grievances | |
| July 14, 2027 | Last day to process AR70’s to correct the 2027/28 tax bill. |
Forms For Attorneys and Other Representative Adobe Acrobat format (PDF) |
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Form AR 10 (PDF) |
| Sample Sales Verification (PDF) |
Form AR 70 (PDF) |
Form AR 71 (PDF) |
Bulk Upload layout and Specification |
AR20 Bulk Upload Layout and Specification |
Forms For Attorneys and Other Representative Adobe Acrobat format (PDF) | |
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(Updated 4/24/2026 – PDF ~744kb) | |
Applications for Correction filed in 2026 for the 2027-28 year |